CN114197224A - White ink printing paste with high air permeability and printing process - Google Patents

White ink printing paste with high air permeability and printing process Download PDF

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Publication number
CN114197224A
CN114197224A CN202111410282.9A CN202111410282A CN114197224A CN 114197224 A CN114197224 A CN 114197224A CN 202111410282 A CN202111410282 A CN 202111410282A CN 114197224 A CN114197224 A CN 114197224A
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printing
white ink
water
air permeability
surfactant
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CN202111410282.9A
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Chinese (zh)
Inventor
谢正辉
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Guangzhou Yicheng Printing Co ltd
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Guangzhou Yicheng Printing Co ltd
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Priority to CN202111410282.9A priority Critical patent/CN114197224A/en
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/673Inorganic compounds
    • D06P1/67391Salts or oxidising-compounds mixtures
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00Inking and printing with a printer's forme
    • B41M1/26Printing on other surfaces than ordinary paper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00Duplicating or marking methods; Sheet materials for use therein
    • B41M5/0041Digital printing on surfaces other than ordinary paper
    • B41M5/0047Digital printing on surfaces other than ordinary paper by ink-jet printing
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/52General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
    • D06P1/5207Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • D06P1/525Polymers of unsaturated carboxylic acids or functional derivatives thereof
    • D06P1/5257(Meth)acrylic acid
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/52General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
    • D06P1/5264Macromolecular compounds obtained otherwise than by reactions involving only unsaturated carbon-to-carbon bonds
    • D06P1/5285Polyurethanes; Polyurea; Polyguanides
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/673Inorganic compounds
    • D06P1/67383Inorganic compounds containing silicon
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/02After-treatment
    • D06P5/04After-treatment with organic compounds
    • D06P5/08After-treatment with organic compounds macromolecular

Abstract

A white ink printing slurry with strong air permeability and a printing process belong to the technical field of printing and dyeing, and comprise a cover paste, a treatment liquid and a white ink base material; the white ink base material is powdery and comprises titanium dioxide, PU matte resin, glycol, a surfactant and water; the treatment fluid comprises an acrylic copolymer, a humectant, a surfactant, a water-based silica gel mixture and water; the cover slurry comprises polyurethane resin, acrylic copolymer, humectant, surfactant, aqueous silica gel mixture, color fixing agent and water; and through the cloth feeding and the scraper; drying and cooling; and (4) spray printing, scraping printing, cooling and solidifying to obtain a finished product. The invention aims to provide the paste which has the advantages of simple components, high air permeability, softness, comfort and high efficiency of the manufactured printed fabric, simple and efficient manufacturing process, and can greatly save production time while improving the air permeability of the fabric.

Description

White ink printing paste with high air permeability and printing process
Technical Field
The invention relates to the technical field of printing and dyeing, in particular to white ink printing paste with strong air permeability and a printing process.
Background
Through printing on the fabric, the printed clothes are obtained, the color is bright, the patterns are diversified, the styles of the clothes are more diversified, the design feeling is stronger, and the loves of consumers at different ages are obtained.
However, the large-area printed coating on the surface of the fabric can greatly reduce the air permeability effect on the surface of the clothes, so that the clothes feel stuffy when worn, the air permeability effect cannot be achieved, and the clothes are always subjected to scaling by consumers, which is also a long-term distress for manufacturers. In addition, in the manufacturing process of the traditional printing coating process, the slurry components are complex, the slurry components are covered for many times, the viscosity is too high, the thickness is too thick, the airtight problem is aggravated, the hand feeling is hard, the fabric is not soft enough, the wearing comfort level is low, and the touch and wearing experience of consumers are also influenced.
In addition, the existing slurry has the disadvantages of more components, complexity, higher cost, poorer effect, complicated operation in the manufacturing process, longer time consumption and insufficient efficiency. For example, a plurality of screen plates are required for printing during production, and the screen plates are washed later, so that waste water generated by manpower is wasted, and more slurry is consumed and wasted in the operation link; secondly, the air quality of a workshop is also influenced by waste gas generated in the production process, and the environment is not environment-friendly enough; and thirdly, the consumed time is long, the efficiency is low, and the cost is higher.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the white ink printing paste with strong air permeability and the printing process.
The purpose of the invention is realized by the following technical scheme:
a white ink printing paste with strong air permeability comprises a cover paste, a treatment liquid and a white ink base material;
the white ink base material is powdery and comprises titanium dioxide, PU matte resin, glycol, a surfactant and water;
the treatment fluid comprises an acrylic copolymer, a humectant, a surfactant, a water-based silica gel mixture and water;
the cover slurry comprises polyurethane resin, acrylic copolymer, humectant, surfactant, aqueous silica gel mixture, color fixing agent and water.
Further measures taken are: the capstock also includes an aziridine.
Further measures taken are: the PU matte resin is polyurethane resin.
Further measures taken are: the white ink base material comprises, by weight, 10-18% of titanium dioxide, 35-45% of polyurethane resin, 15-25% of ethylene glycol, 3-8% of a surfactant, and the balance of water to 100%.
Further measures taken are: the treating fluid comprises, by weight, 35-45% of an acrylic copolymer, 5-9% of a humectant, 3-8% of a surfactant, 4-9% of a water-based silica gel mixture, and the balance of water to 100%.
Further measures taken are: the cover slurry comprises, by weight, 12-18% of polyurethane resin, 12-18% of acrylic copolymer, 3-8% of humectant, 3-8% of surfactant, 3-8% of aqueous silica gel mixture, 1-5% of color fixing agent, 1-3% of aziridine, and the balance of water added to 100%.
The printing process of the white ink printing paste with strong air permeability comprises the following steps:
(1) feeding cloth, using a hard right-angle scraper at a printing position of the cloth to control the sizing rate of the treatment liquid to be 38-42%, only attaching the treatment liquid to the surface layer of the cloth, and then slowly scraping the treatment liquid;
(2) adjusting to 6 grades for drying by adopting a machine; cooling by a cooling machine;
(3) then, spraying and printing the white ink base material, wherein the spraying and printing amount is controlled to be 18-22% each time, and cold pressing is carried out after the spraying and printing of the white ink base material are finished;
(4) spraying and printing corresponding color ink, and modulating by using a machine station for 6 grades and drying;
(5) then (in order to enhance firmness) applying the face paste for scraping and printing, and drying after each scraping and printing;
(6) and finally, fixing color at high temperature through a tunnel dryer, and pressing and solidifying after color fixing and cooling to obtain a finished product.
Further measures taken are: the method comprises the following steps: in the step (1), 3 knives of the treatment liquid are scraped at a low speed;
in the step (2), 3 machine tables are adopted to adjust the drying speed to 6 grades, and the drying time is 7 seconds; cooling for 7 seconds by 3 cooling machines;
in the step (5), the covering paste is scraped and printed for 2 times, and the drying is carried out for 7 seconds after each printing is finished;
further measures taken are: in the step (3), the jet printing amount of the white ink base material is controlled to be 20% each time; after the white ink base material is subjected to jet printing, cold pressing is carried out for 1 time;
in the step (4), the amount of the color ink sprayed and printed each time is 5ml, and 6 grades are prepared by adopting 2 machine tables and dried for 7 seconds;
further measures taken are: in the step (6), fixing the color for 2 times at high temperature through a tunnel dryer, and adjusting the color to 150 ℃ for 4 minutes; and (5) after fixation and cooling, pressing at 150 ℃ for 10 seconds for 1 time, and curing to obtain a finished product.
The traditional offset printing has hard hand feeling and extremely poor ventilation effect, and although other printing and dyeing methods for improving the ventilation property are proposed at present, the ventilation effect is not strong enough, the process and the material are complex, the manufacturing cost is high, and the process is complicated. The group of the invention develops deeply, utilizes materials simplified as much as possible to manufacture the printing coating with strong air permeability, soft hand feeling and bright color, has simplified process in the whole process, can save a lot of process steps and raw materials, and has strong practicability.
The original offset printing needs to be printed by overlapping a plurality of screen coatings, so that the coating is thick and airtight in effect and hard in hand feeling, the invention has air permeability by adopting a specially prepared powdery white ink base material, PU matte resin and ethylene glycol are added on the basis of titanium dioxide, particularly, the PU matte resin with high wear resistance and acid and alkali resistance and the ethylene glycol with high freezing resistance are matched to interact with each other, so that high resilience and proper viscosity effect are exerted, and then the titanium dioxide with high stability is matched, so that the whole printing process does not need a plurality of screen printing, the ink jet covering color is strong, the color brightness is enhanced, the printing is light and thin and has the same feeling as the original cloth, the hand feeling is soft and the air permeability is high; wherein, the PU matte resin is polyurethane resin with the best effect.
The treatment liquid is matched with the white ink base material, various additives and complex printing and dyeing components are avoided, only the combination of an acrylic copolymer and a water-based silica gel mixture is needed, a humectant and a surfactant are added, the components are extremely simple, the transparency of the acrylic copolymer is high, the water washing resistance is realized, the water-based silica gel mixture is mutually crosslinked, the acrylic copolymer and the water-based silica gel mixture are complementary to each other to play an excellent color fastness effect, the use of the priming treatment liquid can be greatly reduced, the effect of the acrylic copolymer cannot cause poor dispersion effect due to the fact that the whole body is adhered to the water-based silica gel, and therefore the uniformity and the firm effect of the whole printing are guaranteed.
The acrylic copolymer, the aqueous silica gel mixture and the polyurethane resin interact with each other to ensure that the printed and dyed surface has bright color, does not fade, is soft and breathable and has strong comfort; at present, aziridine is not added in the spray printing process, and the aziridine is added in the spray printing process, so that the catalyst has a good catalytic effect, the whole body is more stable, the color is bright and attractive, and the spray printing effect is good.
The surfactant has a certain disinfection effect. The printing paste has the advantages that the overall compounding is efficient and reasonable, the traditional complex and airtight printing paste formula is changed, the effect of high air permeability is realized, the number of screen plates and baking times can be obviously reduced compared with the traditional coating, so that the workshop waste gas is reduced, the printing paste is more environment-friendly, and in the hand feeling aspect, the large-area printing is softer, the glue texture of the coating is avoided, the image quality is finer and clearer, the hand feeling is softer, the printing paste is comfortable, and the friction-resistant effect is better.
The manufacturing process can greatly reduce the use amount of the screen plates, thereby greatly saving the use amount of the slurry and improving the ventilation effect; and reduce the half tone use amount and also can show to reduce and use the half tone too much and lead to needing to wash and produce a large amount of waste water in the production, also can reduce the operation in-process link of washing the half tone, this technological process is simple, the preparation link cost and the operating time of having reduced traditional screen printing, make by the 30 minutes that the operation of original screen printing needs time, directly shorten to only needing 5 minutes, greatly improved production efficiency, can also improve the air environment of workshop, and this technology can replace the discharge dyeing technology completely, can realize the ventilative printing and dyeing of full width at dark cloth, therefore, the clothes hanger is strong in practicability.
Compared with the prior art, the invention has the following beneficial effects:
(1) the printing paste is simple and efficient in overall compounding, changes the traditional complex and airtight printing paste formula, realizes the effect of strong air permeability, and obviously reduces the times of screen plates and baking compared with the traditional coating, thereby reducing the waste gas in a workshop and being more environment-friendly; and in the aspect of hand feeling, the coating is softer, the coating has no glue texture, the image quality is finer and clearer, and the friction-resistant effect is better.
(2) The manufacturing process can greatly reduce the use amount of the screen plates, thereby greatly saving the use amount of slurry, improving the ventilation effect and reducing links in the operation process of cleaning the screen plates; the operation time can be greatly reduced, the time required by the original screen printing operation is directly shortened to only 5 minutes from 30 minutes, the production efficiency is obviously improved, the practicability is high, the discharge process can be completely replaced, and the full-width ventilation can be realized on dark cloth.
Drawings
FIG. 1 is a diagram showing the effect of a printed pattern on a printed fabric purchased on the market;
FIG. 2 is a printed pattern effect diagram of the printed fabric prepared in example 1 of the present invention;
fig. 3 is a report of the air permeability test results of the printed fabric prepared in example 1.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments. In the present specification, the terms "upper", "inner", "middle", "left", "right" and "one" are used for clarity of description only, and are not used to limit the scope of the present invention, and the relative relationship between the terms and the modifications may be regarded as the scope of the present invention without substantial technical changes.
Example 1: the white ink printing paste with strong air permeability comprises the following substances, by weight, 10% of titanium dioxide, 35% of polyurethane resin, 25% of ethylene glycol, 3% of a surfactant and the balance of water, wherein the balance is added to 100%;
the treatment fluid comprises the following substances, by weight, 45% of an acrylic copolymer, 9% of a humectant, 8% of a surfactant, 4% of an aqueous silica gel mixture and the balance of water added to 100%;
the cover slurry comprises the following substances, by weight, 12% of polyurethane resin, 18% of acrylic copolymer, 3% of humectant, 3% of surfactant, 8% of aqueous silica gel mixture, 1% of fixing agent, and the balance of water added to 100%.
Example 2: the white ink printing paste with strong air permeability comprises the following substances, by weight, 18% of titanium dioxide, 45% of polyurethane resin, 15% of ethylene glycol, 8% of a surfactant and the balance of water added to 100%;
the treatment fluid comprises the following substances, by weight, 35% of an acrylic copolymer, 5% of a humectant, 3% of a surfactant, 9% of an aqueous silica gel mixture, and the balance of water added to 100%;
the cover slurry comprises the following substances, by weight, 18% of polyurethane resin, 12% of acrylic copolymer, 8% of humectant, 8% of surfactant, 3% of aqueous silica gel mixture, 5% of color fixing agent, and the balance of water added to 100%.
Example 3: the white ink printing paste with strong air permeability comprises 15% of titanium dioxide, 40% of polyurethane resin, 20% of ethylene glycol, 5% of surfactant and the balance of water added to 100%;
the treatment fluid comprises the following substances, by weight, 40% of acrylic copolymer, 7% of humectant, 5% of surfactant, 6% of aqueous silica gel mixture and the balance of water added to 100%;
the cover slurry comprises the following substances in percentage by weight, 15% of polyurethane resin, 15% of acrylic copolymer, 5% of humectant, 5% of surfactant, 5% of water-based silica gel mixture and 3% of fixing agent, and the cover slurry further comprises 1% of aziridine. And the balance to 100% by weight of water.
The PU matte resin is polyurethane resin.
The printing pastes of the above examples 1-3 are printed by the following printing process, which comprises the following steps:
(1) feeding cloth, using a hard right-angle scraper at a printing position of the cloth to control the sizing rate of the treatment liquid to be 38-42%, only attaching the treatment liquid to the surface layer of the cloth, and then slowly scraping the treatment liquid, so that the printing is softer and breathable;
(2) adjusting to 6 grades for drying by adopting a machine; cooling by a cooling machine;
(3) then, spraying and printing the white ink base material, wherein the spraying and printing amount is controlled to be 18-22% each time, and cold pressing is carried out after the spraying and printing of the white ink base material are finished;
(4) spraying and printing corresponding color ink, and modulating by using a machine station for 6 grades and drying;
(5) then, in order to enhance the firmness, the surface paste is coated for scraping, and drying is carried out after each scraping;
(6) and finally, fixing color at high temperature through a tunnel dryer, and pressing and solidifying after color fixing and cooling to obtain a finished product.
In the step (1), 3 knives of the treatment liquid are scraped at a low speed; in the step (2), 3 machine tables are adopted to adjust the drying speed to 6 grades, and the drying time is 7 seconds; cooling for 7 seconds by 3 cooling machines; in the step (5), the covering paste is scraped and printed for 2 times, and the drying is carried out for 7 seconds after each printing is finished;
in the step (3), the jet printing amount of the white ink base material is controlled to be 20% each time; after the white ink base material is subjected to jet printing, cold pressing is carried out for 1 time; in the step (4), the amount of the color ink sprayed and printed each time is 5ml, and 6 grades are prepared by adopting 2 machine tables and dried for 7 seconds; in the step (6), fixing the color for 2 times at high temperature through a tunnel dryer, and adjusting the color to 150 ℃ for 4 minutes; and (5) after fixation and cooling, pressing at 150 ℃ for 10 seconds for 1 time, and curing to obtain a finished product.
Numerous comparative examples were also conducted during the course of the present study, some of which are shown below.
Comparative example 1: the white ink base material is not added with PU matte resin, and the components, the proportion and the printing process steps are completely the same as those of the example 3.
Comparative example 2: the white ink base material was not added with ethylene glycol, and the other components, proportions and printing process steps were exactly the same as those of example 3.
Comparative example 3: the components, proportions and printing process steps of example 3 were exactly the same except that the acrylic copolymer was not added to the treatment liquid.
Comparative example 4: the components, proportions and printing process steps of the treatment solution were completely the same as those of example 3, except that no aqueous silica gel was added.
Comparative example 5: the components, proportions and printing process steps of the cover paste are completely the same as those of the example 3 except that no polyurethane resin is added.
Thus, finished printed fabrics of comparative examples 1-5 were obtained.
Control group 1: conventionally qualified air-permeable printed garment fabric products were purchased in the market as products of control group 1, and relevant comparative tests were conducted with examples and comparative examples.
Through visual observation, it can be found that the printed fabric purchased from the market has relatively low color vividness, is not fine enough and is rough, as shown in fig. 2. The printed fabric obtained by the invention, as a finished product prepared in example 1, is bright and delicate in color and high in definition, as shown in fig. 1.
Through tests, the operation links and operation time of the traditional screen printing needs at least 30 minutes, sometimes even 40 minutes, and by adopting the slurry and the corresponding preparation process of the embodiment, the manufacturing links of the screen printing are greatly reduced, so that the screen printing operation only needs 5 minutes and can be set within 4 minutes, the production efficiency is greatly improved, and breakthrough progress is made in manual operation and efficiency.
The invention also carries out the following comparative detection tests:
and (I) air permeability test.
The finished products of examples 1-3, comparative examples 1-5 and control 1 were subjected to a permeability test according to GB/T5453-1997 standard, test area: 20cm2And test pressure: 100Pa, and the results of the summary test are shown in table 1 below, wherein figure 3 is a report of the results of the permeability test of example 1.
Table 1: air permeability test results
Figure BDA0003365107800000111
As can be seen from table 1 above, the air permeability of the printed surface finished products obtained in embodiments 1-3 is significantly higher than that of the conventional qualified printed clothing fabric products purchased on the market, and in particular, in embodiment 3, it can be seen that the finished products obtained in this embodiment have an ultrahigh air permeability effect. From the air permeability test results of the comparative examples 1-2, it can also be seen that, on the basis of titanium dioxide, the PU matte resin and the ethylene glycol are added, and particularly, the PU matte resin and the ethylene glycol supplement each other, but lack of compatibility, and have a key effect on the effect of playing the ultrahigh air permeability.
And (II) carrying out a color fastness test.
The finished products of examples 1 to 3, comparative examples 1 to 5 and control 1 were subjected to abrasion resistance color fastness tests, and the test samples were tested and evaluated for their original color loss degrees and the color loss degrees of the respective products after abrasion tests using an abrasion resistance color fastness instrument, and the test results were classified into 5 grades from 5 to 1, in which 5 grades were the most excellent and 1 grade the worst, and then the lowest and highest grades of the test evaluation results of the respective groups of samples were recorded and summarized as shown in table 2 below.
Table 2: color fastness comparative test results
Figure BDA0003365107800000121
As is apparent from table 2 above, compared with the color fixing effect of the conventional qualified printed garment fabric products purchased on the market, the finished printed surfaces obtained in the embodiments 1 to 3 have excellent color fixing effect and high color fastness level, and can bear higher-strength friction without fading. In particular, the finished product obtained in example 3 can have a color fastness rating of 5.
In addition, as can be seen from the comparison between comparative examples 1 to 5 and example 3, the PU matte resin, the acrylic copolymer, the aqueous silica gel and the polyurethane resin have certain effects on improving the color fastness, particularly, the acrylic copolymer and the aqueous silica gel mixture play a key role, the acrylic copolymer and the aqueous silica gel mixture improve the overall color fastness, and the effect is far from the effect if one of the acrylic copolymer and the aqueous silica gel mixture is lacked.
(III) soft comfort experience.
In the same area, 10 softness test volunteers of the printed cloth were recruited, and in the same dry-humidity environment, the finished products of examples 1 to 3, comparative examples 1 to 5 and control group 1 were subjected to soft and comfortable touch and wearing tests, and then the experience feelings were fed back and recorded and summarized as shown in table 3 below.
Table 3: soft comfort contrast test results
Figure BDA0003365107800000131
Figure BDA0003365107800000141
The soft and comfortable experience condition reflected by the data in the table 3 can be obviously seen, the softness and comfort level of the finished printed fabric obtained by the embodiment 1-3 is obviously superior to the comfort and softness of the conventional qualified printed fabric products purchased on the market, and therefore the product obtained by the embodiment is more comfortable to wear and has more market prospect.
And as can be seen from the comparison between comparative examples 1 to 5 and example 3, the PU matte resin, the ethylene glycol, the acrylic copolymer, the aqueous silica gel, and the polyurethane resin have certain effects on improving the softness and comfort of the printed fabric, wherein the acrylic copolymer, the aqueous silica gel mixture group, and the polyurethane resin have important effects on improving the softness and comfort of the fabric, and have synergistic effects on improving the overall softness, and the lack of one of the acrylic copolymer, the aqueous silica gel mixture group, and the polyurethane resin can greatly affect the overall softness and comfort.
In conclusion, the printed fabric obtained by matching the sizing agent with the specific process method has the advantages of ultrahigh air permeability effect, high color fastness, softness, comfort, simple sizing agent components and high preparation efficiency, makes a breakthrough progress in the printing field, and is suitable for popularization and application.
The embodiments of the present invention are not limited thereto, and according to the above-mentioned contents of the present invention, the present invention can be modified, substituted or combined in other various forms without departing from the basic technical idea of the present invention.

Claims (10)

1. The white ink printing paste with strong air permeability is characterized in that: comprises cover paste, treatment liquid and white ink base material;
the white ink base material is powdery and comprises titanium dioxide, PU matte resin, glycol, a surfactant and water;
the treatment fluid comprises an acrylic copolymer, a humectant, a surfactant, a water-based silica gel mixture and water;
the cover slurry comprises polyurethane resin, acrylic copolymer, humectant, surfactant, aqueous silica gel mixture, color fixing agent and water.
2. The highly air-permeable white ink printing paste according to claim 1, wherein: the capstock also includes an aziridine.
3. The highly air-permeable white ink printing paste according to claim 1, wherein: the PU matte resin is polyurethane resin.
4. The highly air-permeable white ink printing paste according to claim 1, wherein: the white ink base material comprises, by weight, 10-18% of titanium dioxide, 35-45% of polyurethane resin, 15-25% of ethylene glycol, 3-8% of a surfactant, and the balance of water to 100%.
5. The highly air-permeable white ink printing paste according to claim 1, wherein: the treating fluid comprises, by weight, 35-45% of an acrylic copolymer, 5-9% of a humectant, 3-8% of a surfactant, 4-9% of a water-based silica gel mixture, and the balance of water to 100%.
6. The white ink printing paste with strong air permeability as claimed in claim 2, wherein: the cover slurry comprises, by weight, 12-18% of polyurethane resin, 12-18% of acrylic copolymer, 3-8% of humectant, 3-8% of surfactant, 3-8% of aqueous silica gel mixture, 1-5% of color fixing agent, 1-3% of aziridine, and the balance of water added to 100%.
7. A printing process with strong air permeability is characterized in that: the method comprises the following steps:
(1) feeding cloth, using a hard right-angle scraper at a printing position of the cloth to control the sizing rate of the treatment liquid to be 38-42%, only attaching the treatment liquid to the surface layer of the cloth, and then slowly scraping the treatment liquid;
(2) adjusting to 6 grades for drying by adopting a machine; cooling by a cooling machine;
(3) then, spraying and printing the white ink base material, wherein the spraying and printing amount is controlled to be 18-22% each time, and cold pressing is carried out after the spraying and printing of the white ink base material are finished;
(4) spraying and printing corresponding color ink, and modulating by using a machine station for 6 grades and drying;
(5) then, applying the face paste for scraping and printing, and drying after each scraping and printing;
(6) and finally, fixing color at high temperature through a tunnel dryer, and pressing and solidifying after color fixing and cooling to obtain a finished product.
8. A printing process with high air permeability according to claim 7, characterized in that: in the step (1), 3 knives of the treatment liquid are scraped at a low speed;
in the step (2), 3 machine tables are adopted to adjust the drying speed to 6 grades, and the drying time is 7 seconds;
cooling for 7 seconds by 3 cooling machines;
in the step (5), the covering paste is applied for scraping and printing for 2 times, and drying is carried out for 7 seconds after printing is finished each time.
9. A printing process with high air permeability according to claim 7, characterized in that: in the step (3), the jet printing amount of the white ink base material is controlled to be 20% each time; after the white ink base material is subjected to jet printing, cold pressing is carried out for 1 time;
in the step (4), the amount of the color ink sprayed and printed each time is 5ml, and 6 grades are prepared by adopting 2 machine tables and dried for 7 seconds.
10. A printing process with high air permeability according to claim 7, characterized in that: in the step (6), fixing the color for 2 times at high temperature through a tunnel dryer, and adjusting the color to 150 ℃ for 4 minutes; and (5) after fixation and cooling, pressing at 150 ℃ for 10 seconds for 1 time, and curing to obtain a finished product.
CN202111410282.9A 2021-11-19 2021-11-19 White ink printing paste with high air permeability and printing process Pending CN114197224A (en)

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