How to solve the flat screen pressure plate print in fabric printing
Cause.
The color rate at the screen frame joint is too deep; the screen frame is not properly attached to the edge; the viscosity of the color paste is too low.
Solution.
The color rate at the screen frame joint is too deep, resulting in horizontal joint printing. The screen plate open joint version to be correct, to prevent the street joint at the overlap, big full floor pattern, without affecting the spirit of the pattern premise, can be considered cross, to avoid the two ends of the screen plate horizontal straight line overlap. In the mesh frame of the paste fabric surface with the grid, such as window screen, thick nylon silk mesh and other fabrics additional paste. Do not paste all around the frame, choose the width of the frame at both ends of the paste, so that the mesh frame between the transverse surface of the plate to leave a little gap, without affecting the printing scraping basis, to avoid the appearance of pressure plate print. The viscosity of the color paste should be deployed moderate, favorable to the fabric pulp evenly, the pattern is smooth and clean.
Flat screen fabric printing in the solution to the phenomenon of stuffing network
Causae.
Insufficient density of the base draft piece; improper operation process of flat screen plate making; printing paste quality problem.
Solution.
The base sheet is currently produced by computer. The higher the density of the pattern to black of the base sheet, the better the shading effect. If the blackness is not enough, the poorer the shading effect, ultraviolet light is easy to pass through, it will cause the plug; the gray haze of the base sheet should be low, such as high gray haze, blocking the ultraviolet light through, need to extend the exposure time to complete, so easy to cause excessive exposure time and plug.
Flat screen plate development, curing operation process is not appropriate, will lead to plugging. Development, we should take into account that the UV light is transmitted from the screen surface to the scraping surface, the surface of the full light, you can use the larger pressure of the water rinse; and scraping surface light crosslinking degree than the surface of the small, gel film is tender, rinse should be used without pressure of the water slurry residual slurry drenching clean, to avoid residual slurry blocking the mesh hole. Curing before the second exposure, so that the rubber layer is fully sensitized and then coated with curing agent. When printing, the use of slurry contains impurities or undissolved particles clogged in the mesh, so that when printing the color paste can not be scraped from the mesh, so before using the slurry to filter to impurities. Make the coating adhesive to choose a good quality adhesive and good compatibility thickener, scraping the film should not be too fast when printing.
The process of producing the edge of the pattern from clear to blurred
At the beginning of the printing process, because the liquidity of the paste is good, the squeegee does not need a lot of force to cut the paste clean. With the continuous evaporation of water in the paste, the paste gradually becomes thicker and more viscous, and the size of the squeegee must be increased to cut clean excess paste. As the strength increases, so that the screen elastic deformation of the pattern displacement, with the disappearance of the force of the ink scraper, the screen rebound after the printing surface of the screen pattern edge will be counter-sticky to the paste, in the second printing, the paste will be moved to the edge of the pattern, resulting in blurred pattern edge phenomenon.
Solution.
(1) use a screen with little elasticity, such as polyester silk screen; (2) improve the tension of the screen; (3) reduce the rebound force of the screen; (4) adjust the viscosity of the paste at any time.
Pattern sharp corners into rounded corners, small dot loss causes
Due to the gradual thickening of the paste in the printing process, so that its mobility becomes smaller, when passing through the mesh must increase the pressure of the squeegee to pass through the mesh, but in the edge of the screen pattern due to the photopolymer support pad role, so that the squeegee can not always extrude the paste out of the mesh, so that the paste particles stay in the mesh to form a film, resulting in photopolymer edge of the mesh blockage.
Solution.
(1) the use of low mesh, monofilament, thin screen.
(2) The photopolymer should not be too thick.
(3) The slurry should be kept in a certain liquidity at all times.
The reasons for crusting in the printing process
Any printing material has a common characteristic, namely: the thinner the ink layer, the faster it dries, and the same is true for gum paste. Because the screen is larger than the pattern, the paste in the screen has enough space to stack, the ink scraper is not possible to collect the paste clean in each printing, especially in the pattern above the often produce a thin ink layer, these ink layers will be in a short time to form a semi-dry film, these films are brought into the bias hole by the ink scraper to block the mesh, forming a local blocking phenomenon.
Solution.
In the screen pattern area and the screen frame between the wooden strip to do isolation, the pulp control in a certain range, squeegee can each time the screen pattern side of the pulp to collect clean, also means that the pulp in this range is not possible to produce a thin ink layer, so you can put an end to the crust phenomenon.
There is bleeding in my own paint color paste, why? How can I solve it?
Self-formulated paint color paste is a water-based paste used for textile printing. Bleeding (blotting) can be found from the following aspects.
a. Synthetic fiber fabrics: such as polyester, nylon, polypropylene, etc., or a high percentage of synthetic fiber blends. Synthetic fibers: fabric for hydrophobic substances, with the general printing cotton fabric coating water-based pulp easy to seep easy blot. If the printing of synthetic fabrics, pulp should be thick emulsion paste, avoid dilution with water. If it must be diluted, it is appropriate to use thin emulsion paste dilution. Do not dilute directly with water.
b. The humidity in the air is too large, such as long rainy weather in the south, with pulp should add less water or no water.
c. Cotton fabric is natural cellulose fiber fabric, is hydrophilic material. Generally not easy to permeate. But if the capillary effect is too high will also lead to bleeding. So the appropriate capillary effect is controlled at about 7-200px. Before feeding, it is crucial to ask for the manufacturer’s technical specifications. The capillary effect is too low will not be printed through, too high cause bleeding.
d. Some companies use emulsified paste as thickening agent, commonly known as A gang pulp. It is made by emulsifying white fire oil, ping ping plus and synthetic dragon glue under high-speed mixing. If the quality of the A gang pulp, not fully emulsified well, after the print “oil circle” generated, it is easy to cause “seepage” or * “watermark” misunderstanding. So you should choose a good quality A helper pulp or change to a synthetic thickener, to overcome the “oil ring” generated.
e. caused by “seepage”, “blotting” of many integrated factors, such as the organization of the weave pattern is too thin, too thin, too light; pattern area is too large; screen mesh is too low; operation pressure is too large; scraper cross-section and pattern does not correspond, the amount of pulp is too large, etc.. In addition, the table top also has a great relationship. If you use glass, plastic veneer extremely smooth hard table surface, will also cause bleeding dragging board. The contour is unclear, but should be changed to a flexible soft countertop.
How to mix different colors of pastes?
Color science is a deeper study, color mixing and need to practice the accumulation. Learn the theory, the courage to practice, strange light colorful will belong to you. A good colorist, a look at the sample can roughly determine the basic formula for color mixing. More some color mixing old technician, in the big production that is out of the time, found problems, timely additional color, too late to test the sample, a hammer, to do eight or nine, this is hard work, then we must start from scratch, practice good basic skills.
First from the red, yellow, blue three basic colors to try out the second color: orange, green, purple. Then modulate the three colors: yellow gray, blue gray, red gray.
Then each set of chromatography in each monochrome from light to medium to dark, the amount of 0.1%, 0.5%, 1%, 3%, 5%, scraping to leave a sample sticker formula. In addition, to each batch of business samples, formulas to keep the file for reference, perseverance, will certainly be harvested.
The general principles of color mixing are as follows.
Try to reduce the number of dyes or paint when color mixing, can use one, not two, can use two, not three. In order to facilitate the control of color and light, it is generally better to use less than three colors. Secondly, the same kind of dyes or paints, different manufacturers, different brands are best not to mix spell, such as the need to use for “toning head”, then “toning head” can only be minimal, not two brands equally divided.
One more principle is: dyes or paints have their saturation value, beyond their saturation value, washing is easy to fall off, resulting in staining. Even if the paint is black, the amount should be controlled at 8%-10%, not more than 10%.
How to select and use elastic overprint paste to ensure its color fastness?
a. If it is clothing class, use water-based elastic cover printing gel paste. Because clothing printing requires no smell and soft hand feeling, especially for export clothing or high-grade products printing is especially strict.
b. The type of fabric has an extremely important relationship with the color fastness of the elastic overprint paste. Cotton fabric using elastic cover printing paste should not be used on synthetic fibers, because it can not guarantee its color fastness, should choose polyester special or nylon special paste.
c. Rainproof nylon or polyester, used as banners, umbrellas, etc., the outdoor environment requires good weather fastness, should withstand the sun and rain, the smell and feel of softness is not too demanding, you can choose solvent-based ink, such as polyester ink, nylon ink to print. Coated fabrics, the corresponding ink should be selected according to the coating material is better.
d. Due to the different materials and production processes of each manufacturer, to understand the use of the method, please read the instructions. Some products require drying after baking 130-150 ℃, 3-5min, to increase color fastness. And many individual workers tend to focus on the quality of printing, ignoring the post-treatment process. Omitted baking this process, resulting in a wash off, the situation of the previous work abandoned. Even the low-temperature type “glue paste” or paint color paste, can not be printed after the wash. Should be fully dried 24h, preferably placed in 7 days, so that its color fastness to the highest value. If drying at about 100 ℃, ironing is better.
Why heatset ink printing does not block the screen and can be printed wet to wet
This is the biggest question for traditional textile garment printers. They are amazed when they see the automatic garment printing machine producing at high speed (one piece every five seconds); they are even more amazed when they see the heatset ink printing without cleaning the screen and can continue printing the next day or even ten days and a month later.
Why? Because we all think that the printing coating must contain adhesives, and adhesives must have sticky (so in the case of undried will sticky plate) and self-curing (of course, we have to block the network). 10, heatset ink (English: PLASTISOLINK) is a textile printing coating?
Of course it is! But it is a new type of printing coating, that is, printing coating without any adhesive. Therefore, the heatset ink does not have the viscosity and self-curing properties of adhesives, it also has the condition of never blocking and non-stick stencil. With the conditions of the non-stick screen, is not the same as the absolute non-stick screen, because the heatset ink is, after all, paste. To achieve wet to wet high-speed printing, you must also master the process technology of thermosetting ink dot printing.
Thus, we know the textile printing coating has been divided into two categories: adhesive class and non-adhesive class. Heatset ink for non-adhesive textile printing coatings, its accurate name should be: hot melt curing PVC textile printing coatings.
What patterns are suitable for heatset ink printing
Heatset inks can print any pattern, but fine patterns with covering power and three-dimensional patterns are their unique advantage. This is also due to the characteristics of the heatset ink itself. The non-blocking feature of heatset ink makes it easy to print fine patterns, even on dark fabrics with 0.2mm lines or 60 lines of dots.
Heatset ink and other textile printing coatings compared to another advantage is that its solid content of 100%, so the thickness of the printing of heatset ink is the thickness after curing, as long as you can make a thick enough screen printing stencil can be a version of the same thickness printed three-dimensional graphics. Other textile printing coatings, whether water-based or solvent-based, have a solid content of 60% or less, or even about 5%, and after the water or solvent evaporates, the thickness of the cured graphics is only equivalent to its solid content.
How does heatset ink printing relate to digital technology
Heatset ink is mainly used in dot printing, especially spot color dot printing. Leaving the digital computer technology, the pattern of color separation and screening will be very difficult. Therefore, it is relying on the rapid development of digital computer technology dot printing has become popular.
CMYK four color dots have become very convenient and simple things. Anyone with basic computer skills can easily convert the color image in the computer to CMYK mode, and then set the number of lines, angle, and dot shape of the screen in the output settings (page settings), and print or print the soft film.
Spot dot printing is the most advantageous technology for heatset ink. Spot dot color separation is a special technology developed by digital technology for heatset ink printing, because it is not needed in paper printing and textile printing and dyeing. The heatset ink has the conditions for printing dot patterns on colored fabrics because of its covering power and fine printing at the same time. Now, to solve the problem of color separation software, which is the most developed in the T-shirt industry, the United States took the lead in solving, has launched FastFilms and SpotProcess two sets of spot color dot printing color separation software. If there is no spot color dot printing color separation software, to carry out spot color dot printing will be very complicated and troublesome.
Curing conditions of heatset ink printing
The main component of heatset ink is a chemical synthetic substance: PVC base + 100% solid PLASTIFIER + resin. It is a paste-like solid at room temperature and does not contain any volatile components. However, at a temperature of 130-160°C, the heatset ink begins to melt into a thick liquid, which penetrates downward into the seam of the substrate (fabric fiber). At this point, and then out of high temperature back to room temperature conditions, the thick liquid-like thermosetting ink will solidify into a solid (note that it is not the original state of the paste-like solid), this solidified solid chemical compound and its immersion in the substrate surface is very firmly knitted together, thus achieving the purpose of printing.
It can be seen that the solid conditions of the heatset ink is to control the temperature. Temperature determines the results of heatset ink printing, such as fastness (bonding), softness, and elasticity.
In the printing color paste from the screen frame to splash on the fabric, resulting in splash paste
Causae.
Uneven screen tension; improper viscosity of color paste; improper choice of squeegee; too fast starting frame speed.
Solution.
With air pressure taut screen, not a screen taut, should gradually increase the tension from the warp and weft to reach the required tension value. If a screen taut to the highest tension, will exceed the screen elasticity of the danger of stretching excessive phenomenon, causing uneven tautness, slack, resulting in uneven scraping force and spattering pulp.
The viscosity of the color paste should be adjusted properly. The viscosity of the color paste is too low, flowing too fast, easy to cause spattering when scraping printing. Do not use the deterioration and partial hydrolysis of the original paste color paste, so that the viscosity becomes poor, reduce the toughness, easy to produce spatter pulp.
Scraper selection should be appropriate. From the choice of material scraper, scraping angle, scraping pressure setting to suit the printing requirements, the pressure is not too large. Scraper knife mouth to be a small round mouth shape, can not have a hairy mouth, the collection of pulp to clean, the width of the knife frame to fit.
Start frame speed should not be too fast, when the screen plate up and printing fabric separation, will produce reverse force, and color paste because of the screen frame up too fast, there will be part of the color paste with the screen plate up when spatter paste. So the speed of the screen plate rise to be appropriate, so that the screen plate and printing fabric separation when there is a buffer margin.
Activated printing often have color bleeding phenomenon should be how to solve
Causae.
Improper selection of light-sensitive adhesive; wrong plate making process; printing fabric wet and water on the guide; color paste viscosity is not controlled; improper printing process; scraping printing pressure is too large.
Solution.
When choosing the commercially available photopolymer, pay attention to its characteristics, and use acid-resistant, alkali-resistant, high print resistance photopolymer products. Flat screen photopolymer on the substrate should not be less than 2 times, scraping surface should not be less than 1 time, to maintain a certain thickness and flatness of the film. After the plate making screen on the curing agent to 2 exposures (Note: must be 2 exposures), to improve the degree of the joint film, on the curing agent to cover the front and back of the screen all the adhesive layer. If the screen mesh number in 100 mesh or less, consider the option of coating resistant printing paint method.
Printed fabric fiber moisture contains water, color paste will be due to the role of fiber capillaries, so that the slurry extended permeation to the part outside the pattern, resulting in color bleeding. Rubber guide with water not scraped dry and lead to water penetration into the fabric, resulting in color bleeding. So in the printing fabric fabric to dry, the water on the tape to scrape dry.
The viscosity of the color paste should be controlled. Viscosity is too low, the color paste will also bleed from the edge of the pattern to the fabric, according to the nature of the printed fabric, reasonable deployment of the amount of reactive dyes, anti-dyeing agent and reducing agent dosage to control the right.
Do not scrape the printing pressure is too large, too large to make the screen rubber layer under strong pressure, long time friction caused by rubber layer wear, resulting in color paste bleeding.
Inaccurate alignment (misprint, overlay inaccuracy, wrong flower)
More than two color patterns, printed fabric in all or part of the pattern in one or more colors pattern off or overlapping, not printed in the location should be printed, and pattern markings do not match, called the inadmissibility of the flowers.
Reasons.
① printing plate and printing table or printing machine on the locator with too large a gap, printing plate on the locator is loose, the force generated by the scraper running and layout so that the printing plate to force the direction of movement, the pattern is not printed in the location should be printed.
② printing plate frame deformation, paste in the frame of the screen has a local loose or off phenomenon, so that part of the pattern on the plate moved away from the original position.
③ a pattern in each printing plate layout dry and wet degree difference is large, the humidity of the layout is more loose up or local loose serious, scraper running so that the layout of the pattern to the direction of the force to move, the fabric pattern on the local or all of the different degrees of dislocation.
④ during the printing plate running, pulling the printed piece of clothing or cloth, so that the pattern has been printed on the printing table to move.
⑤ each printing plate taut screen tension difference or uneven, in the temperature, humidity, screen tension is small or uneven layout pattern is easy to shift.
The outline edge of the pattern of one or more colors on the fabric extends outward
The outline edge of one or more color patterns on the fabric expands outward, and a rough color edge of the same color as the pattern and a lighter color is formed in all or part of the pattern edge, and a third color phase appears when two different color patterns meet or are adjacent to each other, a phenomenon called bleeding.
Causae.
① paint printing color paste in the thickening agent content is not enough or too much water, the paste viscosity can not reach the proper requirements. As the flow rate of the printing paste is faster, so that the pattern on the fabric color paste to the edge of the pattern outside the flow more, the formation of the pattern outline is not clear phenomenon.
② printing operation, the scraper running slow speed, pressure, with more pulp, the number of frequent round trips, etc., will make the pattern to give too much pulp, because more than the fabric pulp capacity, the color pulp to the pattern outside the bleeding color.
③ pattern area is large, the amount of fabric pulp, after printing the fabric for a long time layer stacking, so that the fabric humidity increases, pattern color paste is easy to spread out.
④ preparation of printing color paste when stirring uneven or printing paste directly diluted with water, affect or destroy the stability of the printing paste in the emulsified state.
⑤ in synthetic fabrics, synthetic fibers and natural fibers blended or interwoven fabric printing, because synthetic fibers have hydrophobic, printing paste is easy to the pattern outside the seepage.
⑥ tissue is thin thin fabric, pulp absorption capacity is small, especially sensitive to the amount of pulp, the amount of color pulp is a little more prone to bleeding.
The base color of the fabric is revealed at the pattern on the fabric
The pattern on the fabric did not get enough color paste, light color is not clear, revealing the fabric’s base color or fine pattern occurred in the phenomenon of broken missing called the bottom.
Causae.
① due to the deformation of the plate frame, the layout warped, leaving the fabric laid on the table, so that part of the pattern to the pulp is not enough (or even produce desizing).
② scraper running fast, small pressure, with insufficient pulp, scraper rubber is too hard, the edge is too sharp, etc. are easy to make the pattern to get pulp is not enough.
③ pattern, part of the net hole blockage and color pulp is too thick, so that the color pulp over the net rate is reduced, the pattern on the fabric is not enough pulp.
④ thicker yarn or tissue sparse thick fabric, due to the uneven surface of the fabric, the concave part is easy to get enough pulp.
⑤ printing table local low or printing table uneven, so that the pattern on the fabric is not enough pulp.
⑥ fabric of serious folds in the printing table is not completely unfolded, or pavement piece of clothing caused by serious folds, printing folds inside and raised folds on both sides can not get the color pulp, and reveal the fabric bottom color.
Uneven shades of the same color pattern on the fabric
The same color pattern on the fabric shade inconsistency, pattern area is larger when showing irregular scattered pieces or horizontal color file and regular longitudinal color file, called the pattern color shade uneven.
Causae.
① printing operation, scraper running speed and pressure inconsistent or uneven with pulp, so that the pattern of the amount of pulp has more and less, the fabric has more pulp pattern color darker.
② running scraper jumping or slightly raised, the layout of the pattern part of the residual color pulp through the mesh hole to the fabric, resulting in a deeper color horizontal color file.
③ rubber scraper blade bending is not flush, scrape printing pressure and with uneven amount of pulp, so that the pattern on the fabric presents a regular, inconsistent shades of longitudinal color file.
④ printing table local low concave or printing plate layout away from the fabric on the printing table farther, will also make the pattern to the pulp is not enough and light color.
Pattern on the fabric in the pattern of partial or full
The pattern in the pattern on the fabric partially or fully presented a double image, known as reimaging. Small area pattern and fine lines are easy to produce and more obvious.
Reasons.
① printing table surface of artificial leather or plastic cloth is thin or taut, scraper running pressure, in the scraper running direction before the edge of the artificial leather or plastic cloth to produce loosening, laying on the printing table fabric also follow the movement and make the pattern failed to print in the corresponding position with the printing plate pattern, produced a double pattern.
② printing plate layout loose up serious or local serious loose, scraper running pressure is slightly larger, in the direction of the scraper running edge before the layout of the loose, the layout of the pattern then shifted, the fabric printed on the pattern formed a double image.
③ printing with the role of aligning the pattern with the positioner gap is too large or the positioner is loose, the scraper plate running to promote the printing plate, the scraper plate running back and forth caused the screen plate shift printing.
④ fabric printed pattern is not clear, scrape printing again, fabric or version of the shift, it is easy to produce reprint.
The pattern of a certain color on the printed fabric partially presents the adjacent or neighboring blocks of color
Printed fabrics of a certain color pattern partially presented with this pattern or adjacent, the same color, light and unclear pattern color block or color strip called rubbing color.
Causae.
① printing plate from the printing table lifting height is not enough printing plate on a locator off and another locator is not completely off, the lateral movement of the layout of the fabric pattern color paste rubbed to the edge of the pattern outside.
② printing plate did not vertically and accurately into the printing table positioner, and the residual color paste in the printing plate pattern mesh rubbed on the fabric outside the pattern position.
③ fabric pattern pulp amount is too much or the back of the printing plate (and fabric contact surface) pattern edge sticky color pulp too much, the printing plate lift and put down improper operation is most likely to cause rubbing color.
Printed fabric on the pattern part of the presentation of color dark dots or small fine lines
Printed fabric on the pattern part, irregular presentation of the color dark dots or small fine lines, known as color dots.
Causae.
① modulation printing color paste, paint color paste is not fully dissolved, printing color paste filter screen mesh is too large or extrusion force is too large, so that those who did not dissolve the paint particles through the mesh and distributed in the printing paste. Color paste printed on the fabric, the pattern part will appear many darker tiny color dots, the printing paste stirring has not dissolved those larger paint particles group scraping the formation of tiny dark lines.
② paint printing color paste placed for a long time and has produced precipitation, some knotted together paint particles with the color paste printed on the fabric will also produce the phenomenon of color dots.
Deformation of the shape of the pattern on the fabric compared to the original pattern
The shape of the pattern on the fabric has obvious deformation compared with the original pattern, called deformation or walking pattern. It is most obvious when horizontal and straight lines and geometric patterns are printed on the garment piece.
Reasons.
① printing table surface is sticky and with manual paving piece of clothing, due to uneven force so that the piece of clothing has a large deformation, after printing from the printing table to remove the piece of clothing and a certain shape recovery, the pattern on the fabric with the piece of clothing shape recovery and deformation.
② printing table surface is too sticky, printing after uncovering the piece of clothing with greater force, so that the fabric elongation more and recovery degree is smaller, due to the deformation of the piece of clothing, pattern also with the piece of clothing and deformation.
③ printing plate frame deformation or screen and plate frame paste is not firm so that the local layout loose, resulting in the layout of the pattern deformation.
Printed fabrics show regular color blocks, small color dots on parts other than flower patterns
Printed fabric on the pattern outside the parts of the color block, tiny color dots, known as the version of the injury or trachoma. These color blocks and tiny color dots appear in the same position on the garment piece, appearing regularly on the cloth, and its spacing is equal to the running spacing of the printing plate.
Causae.
① printing plate layout pattern outside the part of the plate film bruising or after repair and through-hole places, sealing network is not firm when the plate film has sand eyes, scraping printing color paste through these through-hole and in the fabric, presenting the version of the wounded print.
② printing plate pattern outside the plate film has a small through-hole, scraping through the small hole when the color paste, the corresponding small color dots on the fabric, commonly known as “trachoma”. The main reason for the production of trachoma is the plate screen is not clean, the plate tanning machine glass dirt or large grains of dust, exposure time is not enough, photopolymer coating is too thin, etc., scraper running so that the layout wear will also produce trachoma.
A variety of colors to form a pattern of printed fabrics appear obvious color differences
By a variety of colors composed of pattern printing fabric, there is one or several patterns of color and the pattern printing color paste color does not match, there is a significant color difference, known as color transfer.
Reasons.
① two different colors of the pattern meet, the first printed version of the pattern area is larger and give more pulp, so that the pattern bleeding or stacked on the fabric, after the printing version, squeeze, so that these first printed on the fabric color paste through the version of the pattern mesh into the version, resulting in after the printing version of the color paste discoloration.
② printing process produces serious “side dirt”, so that the edge of the fabric or the edge of the fabric outside the printing table piled up more color paste, after printing the printing plate pattern and it is connected or adjacent, color paste through the pattern mesh into the plate so that the color paste discoloration.
③ printing plate with a different color phase of the color paste, the plate or scraper slit in the residual undried color paste, scraper running these residual color paste mixed into the plate color paste, so that the color paste discoloration.
The position of the individual pattern printed on the garment piece is not allowed
The position of the individual pattern printed on the garment piece does not match the production requirements, which is called inaccurate pattern position.
Cause.
Inaccurate position of laying clothes piece on the printing table.
Printed fabric folds part of the pattern is not complete reason
The fabric before printing has a serious crease, in the printing table paving fabric did not fold the crease spreading spread, printing when the part wrapped in the crease can not be printed on the pattern.
In the printing table paving piece of clothing, if the table is sticky, the fabric is thin, if the operation is not careful will produce wrinkles, printing will also appear when the lack of flowers.
Continuous pattern pattern on the cloth does not present a certain pattern continuous bad The continuous pattern pattern on the cloth does not present a certain pattern continuous bad, called the inadmissibility of receiving flowers. The performance is horizontal (weft direction of the cloth) gap or pattern overlap (produced when hand printing).
Cause.
Printing table between each section of the cloth between the joint printing position is not accurate, if the next section of the front end of the cloth more than the joint printing position, more than the joint printing position of this section of the cloth is not printed on the pattern, resulting in the gap phenomenon; if the next section of the front end of the cloth is not laid to the printing table joint printing position, it will make the back end of the previous section of the printed cloth overlap again printing.
