New materials and processes with the cores of green printing**, digital printing, machine printing, and online marketing are emerging in the printing industry. At the same time, the development of the times and people's needs have brought new issues to the printing market. In this paper, we will explore and discuss some current solutions for solving difficult problems in order to readers.
First, the discharge printing in dark fabrics (cotton textiles) printed with colorful patterns, in terms of paint printing and processing plants is not a very easy process (except professional discharge printing factory), such as the pattern is the line, color The composition of the block can basically be completed, and the move depends on the boss's courage and technology. Generally do not dare to take this risk. If it is a photo-effect transition tone pattern, it is even more courageous for the business. Difficulty in the discharge, the gradient is more difficult to tone, as if it is difficult, difficult to go to the sky. Where is the ladder leading to Qingtian, and explore with the industry peers?
Program: (1) First, pull out the white color. Specifically, the pulp was extracted with a low temperature (E light-colored white pulp is produced in Italy), and the pattern part was pulled out white, followed by printing of a color-tone screen. High-temperature fixing after printing, washing, after the whole. If white pulp is environmentally friendly, color printing paste is also environmentally friendly, and it can achieve export standards without washing water. Wantong Heat Transfer Co., Ltd. sells four-color water-discharging special water-based series. See color picture: 01. The other process is the opposite of the former. After printing, the ink is printed on the white or on the discharge. The color of the process is not good. The advantage is that the output is high. The saturation of the discharge color depends on the whiteness of the yarn, the pullability of the dye,
The overall performance of the paste and color paste, the correctness of the process, and the performance of the equipment.
Solution: (2) Digital color inkjet printing process. Kornit Avalanche 951 type, industrial-grade “printable and wearable†digital printing machine, dual platen, 12 nozzles (2×CMYK+4W) with a maximum print area of ​​60×90 cm, 200 pieces/hour. Specific process: Discharge ink is directly sprayed onto garments or pieces, and can be worn after high temperature treatment. The process is simple, reliable, colorful and soft. See figure: 02 There is also a Japanese MIMAKI 604D model with the same process as above. Digital direct-injection process features: fast, stable quality, suitable for multi-color small batch, high-end apparel, high value-added products.
Fabrics that can be used for discharge printing must be fabrics that can be dyed with reactive dyes from cotton textiles. The removability of reactive dyes depends mainly on its chemical structure. There must be no reactive dyes to be tested before printing.
Second, anti-sublimation printing dark fabric paste printing after a period of time, nearly two weeks long is a month or two, light-colored paste printing pattern surface varying degrees of color change, the basic reason is fabric dyes and Printing pastes occur due to chemical or physical reactions. The industry is known as dye sublimation. It is important to do a good job of prepress testing and choosing the right printing material.
Prepress Testing: Dark fabrics detect dye sublimation before printing. There are many test methods. One or two are listed as follows: 1 Print the white cloth on the fabric to be tested according to the normal printing process. Normally 100 mesh screens are printed 2-3 times, blow to the surface dry immediately and press at 180°C/20°C. Whether the printed surface is discolored (appears fabric color). Observe the degree of discoloration to select the printed material. If slight color change, direct printing with anti-sublimation glue can be selected. If the color change is serious, the anti-sublimation ash priming paste is selected to be used as a base and then printed with anti-sublimation paste or ordinary paste. 2 According to the normal printing process, the white glue is printed, dried and sealed with a self-sealing plastic bag, placed in an oven at 40 degrees for 24 hours, and the degree of discoloration is observed and the printing process is determined.
A, anti-sublimation paste white, transparent two. The method of use is the same as ordinary glue, and can be directly printed. However, the effect of preventing sublimation should be tested according to the fabric. Sublimation of serious fabrics, this type of mortar can not achieve complete anti-discoloration. The anti-sublimation ash shall be used as the base, or a certain amount of anti-sublimation or pure powder shall be added in the mortar to comprehensively control the process. If it is a full-polyester fabric, but also to consider the issue of print fastness, generally take a professional primer (this paste in the production process without any adhesion agent and other mortar have a good affinity), or nylon transparent primer Before the bottom is printed, the sublimation paste is printed.
B, anti-sublimation primer: 1 water and oil dual-purpose base mortar, this paste is widely adaptable. Water-based oily printing paste is compatible with a fastness of 4-4.5. The disadvantage is that it has a certain feel and is not very soft after printing. 2 Water-based bottoming ash can be used in ordinary mortar, with the dosage of 10-20%, depending on the sublimation of the fabric. 3 anti-sublimation primer. Dark gray, add ordinary pulp, the amount of 5-10%, depending on the degree of fabric sublimation to determine the amount.
Third, offset printing fastness problems Photo effect four-color offset printing is called offset printing. The thermal transfer of offset printed images onto the fabric is referred to as offset transfer. This process has been applied to T-shirt garment printing for more than ten years. However, due to lack of breathability, poor hand feeling and poor fastness, it was considered by the printing industry as a low-end printing process. Another aspect is the environmental pollution in the production process. The transfer white and transfer adhesives have always been solvent inks and hot melts. The volatile gas in the workshop exceeds the national limit by four times. Inflict a certain degree of personal injury to the production line employees. At present, the first-line brand of environmentally friendly water-based transfer printing material has been introduced, does not contain PVC / phthalate transfer system. No touch, high tension, super soft water-based transfer ink. Whether in natural fabrics or synthetic fabrics have good adhesion. Washing fastness: high temperature washing 50 times / 60 °C, super soft washing 50 times / 40 °C. The two major characteristics of this ink: First, fine particles, can be through the monofilament 300 mesh / inch screen. Adapt to fine line transfer. The second is that the sublimated fabric can be treated with anti-bleeding, which is difficult to achieve in general transfer materials. In terms of air permeability, there have been holes that have been leaking different sizes and shapes on the surface of the pattern for many years. This process must be taken into consideration when it is used to transfer white or transfer back adhesive film. It is a good choice and it is both fashionable and novel.
Fourth, the collar of the transfer of the United States Avery Dennison is a pioneer in the transfer label. It was named one of the top 500 US companies by Fortune Magazine. The total sales in 2006 was 5.6 billion US dollars. More than 200 factories and sales organizations worldwide. In China's four production plants, sales network throughout the country. A good craft can change the abdication of an industry's traditional craftsmanship, and the collar is marked with direct printing to transfer printing. It is reported that Avery made a revolutionary move on the cowboy mark. There are also many domestic enterprises that specialize in the transfer of labels. Yiwu is a manufacturer, and the equipment investment is 300 yuan. The annual output value is tens of millions. In a workshop with only 5 or 600 square meters, this level can be achieved in the printing industry. However, there is a problem that the solvent odor in the production environment is too strong and it is definitely excessive. The author once suggested to the owner of the company that the current oily transfer material will gradually transition to the water-based transfer material. The second is to increase ventilation and exhaust equipment to protect employees from the harm of air pollution.
The collar labeling transfer process is faster than the traditional screen printing and clothing labeling, high precision, and investment in equipment can be large or small, can be fully automatic machine printing, semi-automatic machine printing, platform manual printing. Imported more than one million automatic screen printing machine, domestic semi-automatic screen printing machine 5-6 million. All printed materials are mainly imported, and the printing and printing supplies are mainly high-end brand names. The film was output negatives, and the edges of the lines were observed under a microscope at 40x without jaggies. In the printing process, from the background color, plastic, back glue must strictly adhere to the operating procedures, technology, quality, and standardized management. In water-based transfer materials, internationally renowned brands and domestic brands are available.
Five, three-dimensional LOGO transfer mark:
The era of high-frequency embossing, mold-opening and three-dimensional marking has become over. A new era of screen-printed three-dimensional thick plate transfer marks has emerged quietly in coastal cities. His all-water-based materials, the entire screen printing process throughout the production process and products green. This kind of transfer logo has been applied to various well-known sports apparel. The superiority of this mold mark is that he does not need to rely on any texture substrate and directly transfer to the clothing. The traditional production process requires the use of open copper molds, silicon equipment, and high-frequency equipment. The new process is based on manual screen printing. In general, a small-scale printing factory can produce any one or more of the three or three years of technical worker's scraping technology. as follows:
Material: Water-based transfer white 001 alone or with 002 (with additive 2%)
Water-based transfer printing 002 printing thick or coloring (with auxiliary 2%)
Water-based intermediate 003 002 and 004 water-based transfer printing glue 004
Cold tear matte film 007
Film: Anti-Yang map, requires slash, curve edge without jagged A, background film, requires 0.1mm larger than thick film (180 mesh - 250 mesh lithography)
B, thick film is less than the bottom film 0.1mm (120 mesh)
Screen version: standard aluminum mesh frame 120 mesh, 180 mesh - 250 mesh all 45 degree angle oblique stretch net, tension 20 Newton, photosensitive thickness, printing surface 50-70 micron printing process:
1, the platform manual printing 2, ink pad must be flat 3, water suction fixed transfer film 4, net distance 3-5mm, keep the line type printing 5, scraper: water-based sharp or oily flat mouth 6, background color printing 2-3 times ( High mesh mesh is suitable
7, thick version of transparent printing 002 India 20-30 times (100-120 mesh)
8. Water-based transfer printing: 003 printing 2 times, water-based transfer printing glue 004 printing 2-3 times baking: 80°C/2 hours, 60°C/3 hours Color matching: 001 White Color printing 001+002 can be printed separately and then added with color paste.
Fastness: The amount of aid, baking temperature and time determine the fastness and feel.
First, the discharge printing in dark fabrics (cotton textiles) printed with colorful patterns, in terms of paint printing and processing plants is not a very easy process (except professional discharge printing factory), such as the pattern is the line, color The composition of the block can basically be completed, and the move depends on the boss's courage and technology. Generally do not dare to take this risk. If it is a photo-effect transition tone pattern, it is even more courageous for the business. Difficulty in the discharge, the gradient is more difficult to tone, as if it is difficult, difficult to go to the sky. Where is the ladder leading to Qingtian, and explore with the industry peers?
Program: (1) First, pull out the white color. Specifically, the pulp was extracted with a low temperature (E light-colored white pulp is produced in Italy), and the pattern part was pulled out white, followed by printing of a color-tone screen. High-temperature fixing after printing, washing, after the whole. If white pulp is environmentally friendly, color printing paste is also environmentally friendly, and it can achieve export standards without washing water. Wantong Heat Transfer Co., Ltd. sells four-color water-discharging special water-based series. See color picture: 01. The other process is the opposite of the former. After printing, the ink is printed on the white or on the discharge. The color of the process is not good. The advantage is that the output is high. The saturation of the discharge color depends on the whiteness of the yarn, the pullability of the dye,
The overall performance of the paste and color paste, the correctness of the process, and the performance of the equipment.
Solution: (2) Digital color inkjet printing process. Kornit Avalanche 951 type, industrial-grade “printable and wearable†digital printing machine, dual platen, 12 nozzles (2×CMYK+4W) with a maximum print area of ​​60×90 cm, 200 pieces/hour. Specific process: Discharge ink is directly sprayed onto garments or pieces, and can be worn after high temperature treatment. The process is simple, reliable, colorful and soft. See figure: 02 There is also a Japanese MIMAKI 604D model with the same process as above. Digital direct-injection process features: fast, stable quality, suitable for multi-color small batch, high-end apparel, high value-added products.
Fabrics that can be used for discharge printing must be fabrics that can be dyed with reactive dyes from cotton textiles. The removability of reactive dyes depends mainly on its chemical structure. There must be no reactive dyes to be tested before printing.
Second, anti-sublimation printing dark fabric paste printing after a period of time, nearly two weeks long is a month or two, light-colored paste printing pattern surface varying degrees of color change, the basic reason is fabric dyes and Printing pastes occur due to chemical or physical reactions. The industry is known as dye sublimation. It is important to do a good job of prepress testing and choosing the right printing material.
Prepress Testing: Dark fabrics detect dye sublimation before printing. There are many test methods. One or two are listed as follows: 1 Print the white cloth on the fabric to be tested according to the normal printing process. Normally 100 mesh screens are printed 2-3 times, blow to the surface dry immediately and press at 180°C/20°C. Whether the printed surface is discolored (appears fabric color). Observe the degree of discoloration to select the printed material. If slight color change, direct printing with anti-sublimation glue can be selected. If the color change is serious, the anti-sublimation ash priming paste is selected to be used as a base and then printed with anti-sublimation paste or ordinary paste. 2 According to the normal printing process, the white glue is printed, dried and sealed with a self-sealing plastic bag, placed in an oven at 40 degrees for 24 hours, and the degree of discoloration is observed and the printing process is determined.
A, anti-sublimation paste white, transparent two. The method of use is the same as ordinary glue, and can be directly printed. However, the effect of preventing sublimation should be tested according to the fabric. Sublimation of serious fabrics, this type of mortar can not achieve complete anti-discoloration. The anti-sublimation ash shall be used as the base, or a certain amount of anti-sublimation or pure powder shall be added in the mortar to comprehensively control the process. If it is a full-polyester fabric, but also to consider the issue of print fastness, generally take a professional primer (this paste in the production process without any adhesion agent and other mortar have a good affinity), or nylon transparent primer Before the bottom is printed, the sublimation paste is printed.
B, anti-sublimation primer: 1 water and oil dual-purpose base mortar, this paste is widely adaptable. Water-based oily printing paste is compatible with a fastness of 4-4.5. The disadvantage is that it has a certain feel and is not very soft after printing. 2 Water-based bottoming ash can be used in ordinary mortar, with the dosage of 10-20%, depending on the sublimation of the fabric. 3 anti-sublimation primer. Dark gray, add ordinary pulp, the amount of 5-10%, depending on the degree of fabric sublimation to determine the amount.
Third, offset printing fastness problems Photo effect four-color offset printing is called offset printing. The thermal transfer of offset printed images onto the fabric is referred to as offset transfer. This process has been applied to T-shirt garment printing for more than ten years. However, due to lack of breathability, poor hand feeling and poor fastness, it was considered by the printing industry as a low-end printing process. Another aspect is the environmental pollution in the production process. The transfer white and transfer adhesives have always been solvent inks and hot melts. The volatile gas in the workshop exceeds the national limit by four times. Inflict a certain degree of personal injury to the production line employees. At present, the first-line brand of environmentally friendly water-based transfer printing material has been introduced, does not contain PVC / phthalate transfer system. No touch, high tension, super soft water-based transfer ink. Whether in natural fabrics or synthetic fabrics have good adhesion. Washing fastness: high temperature washing 50 times / 60 °C, super soft washing 50 times / 40 °C. The two major characteristics of this ink: First, fine particles, can be through the monofilament 300 mesh / inch screen. Adapt to fine line transfer. The second is that the sublimated fabric can be treated with anti-bleeding, which is difficult to achieve in general transfer materials. In terms of air permeability, there have been holes that have been leaking different sizes and shapes on the surface of the pattern for many years. This process must be taken into consideration when it is used to transfer white or transfer back adhesive film. It is a good choice and it is both fashionable and novel.
Fourth, the collar of the transfer of the United States Avery Dennison is a pioneer in the transfer label. It was named one of the top 500 US companies by Fortune Magazine. The total sales in 2006 was 5.6 billion US dollars. More than 200 factories and sales organizations worldwide. In China's four production plants, sales network throughout the country. A good craft can change the abdication of an industry's traditional craftsmanship, and the collar is marked with direct printing to transfer printing. It is reported that Avery made a revolutionary move on the cowboy mark. There are also many domestic enterprises that specialize in the transfer of labels. Yiwu is a manufacturer, and the equipment investment is 300 yuan. The annual output value is tens of millions. In a workshop with only 5 or 600 square meters, this level can be achieved in the printing industry. However, there is a problem that the solvent odor in the production environment is too strong and it is definitely excessive. The author once suggested to the owner of the company that the current oily transfer material will gradually transition to the water-based transfer material. The second is to increase ventilation and exhaust equipment to protect employees from the harm of air pollution.
The collar labeling transfer process is faster than the traditional screen printing and clothing labeling, high precision, and investment in equipment can be large or small, can be fully automatic machine printing, semi-automatic machine printing, platform manual printing. Imported more than one million automatic screen printing machine, domestic semi-automatic screen printing machine 5-6 million. All printed materials are mainly imported, and the printing and printing supplies are mainly high-end brand names. The film was output negatives, and the edges of the lines were observed under a microscope at 40x without jaggies. In the printing process, from the background color, plastic, back glue must strictly adhere to the operating procedures, technology, quality, and standardized management. In water-based transfer materials, internationally renowned brands and domestic brands are available.
Five, three-dimensional LOGO transfer mark:
The era of high-frequency embossing, mold-opening and three-dimensional marking has become over. A new era of screen-printed three-dimensional thick plate transfer marks has emerged quietly in coastal cities. His all-water-based materials, the entire screen printing process throughout the production process and products green. This kind of transfer logo has been applied to various well-known sports apparel. The superiority of this mold mark is that he does not need to rely on any texture substrate and directly transfer to the clothing. The traditional production process requires the use of open copper molds, silicon equipment, and high-frequency equipment. The new process is based on manual screen printing. In general, a small-scale printing factory can produce any one or more of the three or three years of technical worker's scraping technology. as follows:
Material: Water-based transfer white 001 alone or with 002 (with additive 2%)
Water-based transfer printing 002 printing thick or coloring (with auxiliary 2%)
Water-based intermediate 003 002 and 004 water-based transfer printing glue 004
Cold tear matte film 007
Film: Anti-Yang map, requires slash, curve edge without jagged A, background film, requires 0.1mm larger than thick film (180 mesh - 250 mesh lithography)
B, thick film is less than the bottom film 0.1mm (120 mesh)
Screen version: standard aluminum mesh frame 120 mesh, 180 mesh - 250 mesh all 45 degree angle oblique stretch net, tension 20 Newton, photosensitive thickness, printing surface 50-70 micron printing process:
1, the platform manual printing 2, ink pad must be flat 3, water suction fixed transfer film 4, net distance 3-5mm, keep the line type printing 5, scraper: water-based sharp or oily flat mouth 6, background color printing 2-3 times ( High mesh mesh is suitable
7, thick version of transparent printing 002 India 20-30 times (100-120 mesh)
8. Water-based transfer printing: 003 printing 2 times, water-based transfer printing glue 004 printing 2-3 times baking: 80°C/2 hours, 60°C/3 hours Color matching: 001 White Color printing 001+002 can be printed separately and then added with color paste.
Fastness: The amount of aid, baking temperature and time determine the fastness and feel.
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