CN113969509A - Digital printing fabric pretreatment method with water-repellent and antifouling functions - Google Patents
Digital printing fabric pretreatment method with water-repellent and antifouling functions Download PDFInfo
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- CN113969509A CN113969509A CN202111271265.1A CN202111271265A CN113969509A CN 113969509 A CN113969509 A CN 113969509A CN 202111271265 A CN202111271265 A CN 202111271265A CN 113969509 A CN113969509 A CN 113969509A
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- 239000004744 fabric Substances 0.000 title claims abstract description 59
- 238000007639 printing Methods 0.000 title claims abstract description 37
- 239000005871 repellent Substances 0.000 title claims abstract description 29
- 238000002203 pretreatment Methods 0.000 title claims abstract description 17
- 230000003373 anti-fouling effect Effects 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 125000002091 cationic group Chemical group 0.000 claims abstract description 22
- 239000003607 modifier Substances 0.000 claims abstract description 22
- 239000000243 solution Substances 0.000 claims abstract description 22
- 230000002940 repellent Effects 0.000 claims abstract description 21
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 13
- 239000011737 fluorine Substances 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 6
- 239000011259 mixed solution Substances 0.000 claims abstract description 5
- 238000007598 dipping method Methods 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims abstract description 4
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 4
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical group [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 6
- 235000019270 ammonium chloride Nutrition 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 18
- 239000011248 coating agent Substances 0.000 abstract description 12
- 238000000576 coating method Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 12
- 230000035515 penetration Effects 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000004043 dyeing Methods 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 3
- 235000019483 Peanut oil Nutrition 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000000312 peanut oil Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010022 rotary screen printing Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General 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
- D06P1/44—General 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
- D06P1/52—General 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General 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
- D06P1/44—General 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
- D06P1/445—Use of auxiliary substances before, during or after dyeing or printing
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Coloring (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a pretreatment method of a digital printing fabric with water-repellent and antifouling functions, which is characterized by preparing a pretreatment solution of a cationic modifier, preparing a solution of a fluorine-containing water repellent agent, adding the solution into the pretreatment solution of the cationic modifier, heating and stirring under the condition of water bath, and uniformly mixing; processing the fabric by the mixed solution in a two-dipping and two-rolling mode; and drying the treated fabric. The method is simple to operate, has low cost and obvious improvement effect; by adopting the method for pretreatment, on the basis that the printed fabric has excellent waterproof and anti-fouling effects, the penetration phenomenon of the coating ink on the surface of the fabric is effectively weakened, so that the definition of the edge of the printed pattern is obviously enhanced, the color depth, soaping resistance and color fastness to sunlight are improved to a certain extent, and the hand feeling style of the fabric is obviously improved by adding the water repellent.
Description
Technical Field
The invention relates to a pretreatment method of a digital printing fabric with water-repellent and antifouling functions, belonging to the technical field of printing and dyeing.
Background
Digital printing technique is a novel stamp mode, and it need not the plate-making, need not to evaporate washing, the high temperature cures the fixation after printing and dyeing and can use, and operating procedure is simple, has three low advantages of the energy consumption is low, the noise is low, the pollution is low, and the printing of the fineness of edge profile, realization complex pattern can be promoted greatly to the skin upgrading ink droplet simultaneously. Compared with the prior art, the traditional screen printing or rotary screen printing has the defects of long process, single plateable pattern, limited color types and large sewage discharge, and the large-scale use of the digital printing gradually becomes a trend. The digital printing technology of the coating is a digital printing technology which uses coating ink to perform ink jet printing to ensure that pigment molecules are attached to the surface of the fabric to develop color, is particularly suitable for blended fabrics consisting of different fibers, can be widely used, and has the additional advantages of strong sunlight resistance and light fastness.
However, the digital printing technique with coating still has more problems in practical application, for example, the coating ink spreads on the surface of the fabric during printing process, and longitudinal penetration and capillary wicking effect and transverse diffusion along the warp and weft directions occur, which seriously reduce the definition of the pattern edge, the bonding color fastness of the coating ink on the surface and the color depth. The pretreatment is a pretreatment process of the fabric before printing, the effective pretreatment is to use an anionic adhesive or a cationic modifier, provide stable conditions for the effective adsorption and coloring of paint molecules on yarn fibers through the functions of film forming, gap filling and the like, and simultaneously control and weaken the process of ink drop diffusion and infiltration to the periphery, thereby obviously improving the final effect of the paint ink digital printing.
The fluorine-containing water repellent agent is a common treating agent for the fabric, and can reduce the surface tension and the wettability by forming a film on the surface of the yarn, so that the fabric has excellent waterproof and antifouling performances on the premise of ensuring the moisture-permeable and breathable wearability. According to the invention, the fluorine-containing water repellent agent and the cationic modifier are mixed according to a certain proportion for use as a pretreatment formula of the digital printing process of the blended fabric coating, so that the two pretreatments exert synergistic effects of mutual promotion, and the definition, the color depth and the color fastness of the pattern contour after digital printing are remarkably improved to different degrees on the basis of the waterproof and anti-fouling effects of the fabric.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in the printing process, when the coating ink is spread on the surface of the fabric, longitudinal penetration and transverse diffusion along the warp direction and the weft direction under the capillary wicking effect can occur, so that the pattern edge is not clear, the bonding color fastness of the coating ink on the surface is poor, and the like.
In order to solve the technical problem, the invention provides a pretreatment method of a digital printing fabric with water-repellent and antifouling functions, which comprises the following steps:
step 1): preparing a cationic modifier pretreatment solution, and standing at normal temperature;
step 2): preparing a fluorine-containing water repellent agent solution, adding the fluorine-containing water repellent agent solution into the cationic modifier pretreatment solution, heating and stirring under the water bath condition, and uniformly mixing;
step 3): processing the fabric by the mixed solution obtained in the step 2) in a two-dipping and two-rolling mode;
step 4): and drying the treated fabric.
Preferably, the mass concentration of the pretreatment solution of the cationic modifier in the step 1) is 1%, and the cationic modifier is ammonium chloride polymer.
Preferably, the mass concentration of the fluorine-containing water repellent agent solution in the step 2) is 0.05%, and the heating temperature of the water bath is 80 ℃.
Preferably, in the step 3), a horizontal padder is adopted to treat the fabric, the time for soaking in the mixed solution each time is 40 minutes, the rotation speed of the padder is 30r/min, and the pressure is 0.2 Mpa.
Preferably, the temperature for drying in the step 4) is 100 ℃.
The invention provides a pretreatment method of a digital printing fabric with water-repellent and antifouling functions, which is simple to operate, has lower cost and obvious improvement effect; by adopting the method for pretreatment, on the basis that the printed fabric has excellent waterproof and anti-fouling effects, the penetration phenomenon of the coating ink on the surface of the fabric is effectively weakened, so that the definition of the edge of the printed pattern is obviously enhanced, the color depth, soaping resistance and color fastness to sunlight are improved to a certain extent, and the hand feeling style of the fabric is obviously improved by adding the water repellent. The two pretreatment agents in the pretreatment mode exert the synergistic effect of mutual promotion, provide conditions for realizing complex and various patterns in the digital printing of the coating, and adapt to the development trend of low carbon and environmental protection.
Compared with the prior art, the invention has the beneficial effects that:
(1) the fabric pretreatment scheme disclosed by the invention is simple to operate, has an obvious effect, has excellent expressive force on the stereoscopic impression and the layering sense of the final fabric printed patterns, and is suitable for printing and dyeing the fabric with higher requirements on definition of the outline edge;
(2) compared with pretreatment only with a cationic modifier, the method further effectively improves the anti-seepage effect of the coating ink on the surface of the fabric, obviously improves the edge definition of the camouflage pattern after digital printing, provides possibility for realizing rapid printing and dyeing of high-fineness and multicolor patterns, improves printing adaptability, and improves the color depth and color fastness to different degrees;
(3) due to the addition of the water repellent, on the basis of endowing the fabric with certain waterproof and anti-fouling functions, the hand feeling styles such as softness, smoothness and the like of the fabric are enhanced, and the overall wearability of the fabric is obviously improved.
Drawings
FIG. 1 shows the effect of printing 0.25px warp lines (magnification 50);
FIG. 2 shows the printing effect of 1px warp direction lines;
FIGS. 3a-3c show the printing effect of the width values of 3px, b.5px, and 7px on the warp direction lines, respectively;
FIG. 4 shows CMYK four-color patch print effect;
FIG. 5 is a detail view of the printing effect and enlargement of the fabric; the left is no pretreatment effect and the right is the fabric of example 1.
Detailed Description
In order to make the invention more comprehensible, preferred embodiments are described in detail below.
Example 1
A pretreatment method of a digital printing fabric with water-repellent and antifouling functions comprises the following steps:
step 1): preparing a cationic modifier pretreatment solution, and standing at normal temperature; the mass concentration of the pretreatment solution of the cationic modifier is 1%, and the cationic modifier adopts an ammonium chloride polymer;
step 2): preparing a fluorine-containing water repellent agent solution, adding the fluorine-containing water repellent agent solution into the cationic modifier pretreatment solution, heating and stirring under the water bath condition, and uniformly mixing; the mass concentration of the fluorine-containing water repellent agent solution is 0.05 percent, and the heating temperature of the water bath is 80 ℃;
step 3): processing the fabric by the mixed solution obtained in the step 2) in a two-dipping and two-rolling mode; specifically, a horizontal padder is adopted to treat the fabric, the time for soaking in the mixed liquid each time is 40 minutes, the rotating speed of the padder is 30r/min, and the pressure is 0.2 Mpa;
step 4): and drying the treated fabric at 100 ℃.
And (4) related tests:
the same fabrics, which were not pretreated, pretreated with only 1 wt% of a cationic modifier, and pretreated with only 0.05 wt% of a fluorine-containing water repellent agent, were respectively used as comparative examples 1 to 3.
FIG. 1 shows the effect of printing 0.25px warp lines (magnification 50); from left to right, the fabric of example 1 was treated with no pretreatment, 1% cationic modifier, 0.05% fluorochemical water repellent.
FIG. 2 shows the printing effect of 1px warp direction lines; from left to right, the fabric of example 1 was treated with no pretreatment, 1% cationic modifier, 0.05% fluorochemical water repellent.
FIGS. 3a-3c show the printing effect of the width values of 3px, b.5px, and 7px on the warp direction lines, respectively; from left to right, the fabric of example 1 was treated with no pretreatment, 1% cationic modifier, 0.05% fluorochemical water repellent.
FIG. 4 shows CMYK four-color patch print effect; from left to right, the fabric of example 1 was treated with no pretreatment, 1% cationic modifier, 0.05% fluorochemical water repellent.
FIG. 5 is a detail view of the printing effect and enlargement of the fabric; left is no pretreatment and right is the fabric of example 1.
The CMYK colorimetric comparison results for the fabrics for the different pretreatment methods are shown in Table 1.
The water repellency and stain repellency of the pretreated fabrics were evaluated by comparing distilled water with peanut oil, respectively, and the results of comparing the wetting properties of the fabric surfaces by different pretreatment methods (distilled water & peanut oil) are shown in table 2.
The results of the comparison of the fabric colorfastness of the different pretreatment methods are shown in table 3.
The hand feel style comparison results for the fabrics of the different pretreatment methods are shown in table 4.
TABLE 1
TABLE 2
TABLE 3
TABLE 4
| Resilience of recovery | Softness | Smoothness of the surface | Degree of draping | Relative style similarity | |
| Comparative example 1 | 47.61 | 79.69 | 82.59 | 8.60 | 0 |
| Comparative example 2 | 44.79 | 77.99 | 80.38 | 8.36 | 2.212 |
| Comparative example 3 | 46.31 | 79.57 | 81.19 | 9.06 | 1.598 |
| Example 1 | 45.89 | 79.02 | 81.16 | 8.83 | 1.294 |
Claims (5)
1. A pretreatment method of a digital printing fabric with water-repellent and antifouling functions is characterized by comprising the following steps:
step 1): preparing a cationic modifier pretreatment solution, and standing at normal temperature;
step 2): preparing a fluorine-containing water repellent agent solution, adding the fluorine-containing water repellent agent solution into the cationic modifier pretreatment solution, heating and stirring under the water bath condition, and uniformly mixing;
step 3): processing the fabric by the mixed solution obtained in the step 2) in a two-dipping and two-rolling mode;
step 4): and drying the treated fabric.
2. The pretreatment method of a digitally printed fabric with water repellency and stain resistance according to claim 1, wherein the mass concentration of the pretreatment solution of the cationic modifier in the step 1) is 1%, and the cationic modifier is an ammonium chloride polymer.
3. The pretreatment method of a digital printing fabric with water repellent and stain resistant functions as claimed in claim 1, wherein the mass concentration of the fluorine-containing water repellent agent solution in the step 2) is 0.05%, and the heating temperature of the water bath is 80 ℃.
4. The pretreatment method of digital printing fabric with water repellency and stain resistance as claimed in claim 1, wherein in the step 3), a horizontal padder is adopted to treat the fabric, the soaking time in the mixed liquor each time is 40 minutes, the padder rotation speed is 30r/min, and the pressure is 0.2 Mpa.
5. The pretreatment method of a digitally printed fabric with water repellency and stain resistance according to claim 1, wherein the drying temperature in the step 4) is 100 ℃.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111271265.1A CN113969509A (en) | 2021-10-29 | 2021-10-29 | Digital printing fabric pretreatment method with water-repellent and antifouling functions |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111271265.1A CN113969509A (en) | 2021-10-29 | 2021-10-29 | Digital printing fabric pretreatment method with water-repellent and antifouling functions |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184696A (en) * | 2013-03-29 | 2013-07-03 | 浙江华泰丝绸有限公司 | Digital printing non-slurry preprocessing method for silk cloth |
| CN106758425A (en) * | 2016-12-15 | 2017-05-31 | 寿华君 | A kind of silk digit printing is without slurry pre-treating method |
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2021
- 2021-10-29 CN CN202111271265.1A patent/CN113969509A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184696A (en) * | 2013-03-29 | 2013-07-03 | 浙江华泰丝绸有限公司 | Digital printing non-slurry preprocessing method for silk cloth |
| CN106758425A (en) * | 2016-12-15 | 2017-05-31 | 寿华君 | A kind of silk digit printing is without slurry pre-treating method |
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Application publication date: 20220125 |