CN111893783A - Pretreatment liquid for water-based pigment textile printing and method for forming pattern on fabric - Google Patents
Pretreatment liquid for water-based pigment textile printing and method for forming pattern on fabric Download PDFInfo
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- CN111893783A CN111893783A CN201910373367.0A CN201910373367A CN111893783A CN 111893783 A CN111893783 A CN 111893783A CN 201910373367 A CN201910373367 A CN 201910373367A CN 111893783 A CN111893783 A CN 111893783A
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- pretreatment liquid
- fabric
- melamine resin
- metal salt
- aqueous
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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
- D06P1/5264—Macromolecular compounds obtained otherwise than by reactions involving only unsaturated carbon-to-carbon bonds
- D06P1/5285—Polyurethanes; Polyurea; Polyguanides
-
- 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
- D06P1/56—Condensation products or precondensation products prepared with aldehydes
- D06P1/58—Condensation products or precondensation products prepared with aldehydes together with other 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
- D06P1/673—Inorganic compounds
- D06P1/67333—Salts or hydroxides
- D06P1/6735—Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
- D06P1/67358—Halides or oxyhalides
Abstract
A water-based pigment pretreatment liquid for textile printing comprises: 1 to 30 weight percent of aqueous nonionic polyurethane 1 to 20 weight percent of metal salt; 0.1 to 10 weight percent melamine resin; and the balance solvent. The invention further provides a method for forming a pattern on a fabric by using the pretreatment liquid.
Description
Technical Field
The invention relates to a pretreatment liquid for aqueous pigment textile printing and a method for forming patterns on fabrics by using the same, in particular to a pretreatment liquid for aqueous pigment textile printing and a method for forming patterns on fabrics by using the same, which can increase the fastness of ink applied subsequently.
Background
When the pigment type ink is coated/sprayed on the dark color fabric, the pretreatment liquid is coated on the fabric, and then the white ink is used for priming to increase the ink fastness or prevent the white ink from permeating. In addition, when the pigment-type color ink is applied to light-colored fabrics, the pretreatment liquid can be coated on the fabrics in advance, so that the chroma of the pigment-type color ink which is subsequently coated/sprayed is improved.
Conventionally known pretreatment liquids often use aqueous cationic or aqueous nonionic resins. However, the known pretreatment liquids using aqueous cationic resins have poor formulation stability and cannot be widely used; on the other hand, the known pretreatment liquid using an aqueous nonionic resin has a disadvantage of insufficient ink fastness in subsequent coating because no crosslinking agent is added.
In addition, the white ink system of dupont is still the mainstream in the market, and each pretreatment liquid developer is based on the applicability of the dupont product. However, most of the currently developed pretreatment liquids are not suitable for use in the dupont white ink system, and the main disadvantage is that the white ink permeates, resulting in decrease of whiteness or poor performance in fastness characteristics. As for the pretreatment liquid developed by DuPont itself, there is a cracking phenomenon when used in combination with the DuPont white ink system, and there is still room for improvement in the rubbing fastness.
In view of the above, there is a need to develop a water-based pigment pretreatment liquid for textile printing, which can improve the above-mentioned problems to increase the ink fastness of the subsequent coating/spray printing.
Disclosure of Invention
The invention mainly aims to provide a water-based pigment textile printing pretreatment liquid which can increase the ink fastness of subsequent coating, prevent white ink from permeating or improve the chroma of color ink.
The pretreatment liquid for the textile printing of the water-based pigment comprises the following components: 1 to 30 weight percent of an aqueous nonionic polyurethane; 1 to 20% by weight of a metal salt; 0.1 to 10 weight percent of a melamine resin; and the balance solvent.
The pretreatment liquid is used for textile printing of water-based pigment. In the pretreatment liquid of the invention, besides the aqueous nonionic type, the melamine resin is used as a cross-linking agent, so that the ink applied subsequently can show good fastness characteristics. Meanwhile, when the ink coated subsequently is white ink, good whiteness can be displayed; and when the ink coated subsequently is color ink, the color uniformity can be well shown.
The pretreatment liquid of the present invention may include 1 to 30% by weight of an aqueous nonionic urethane. Preferably, the pretreatment liquid of the present invention includes 1 to 20 wt% of the aqueous nonionic polyurethane. More preferably, the pretreatment liquid of the present invention comprises 5 to 15 wt% of the aqueous nonionic polyurethane. Preferably, the pretreatment liquid of the present invention comprises 8 to 12 wt% of the aqueous nonionic urethane. In one embodiment of the present invention, the pretreatment liquid includes about 10 wt% of the aqueous nonionic polyurethane.
In the pretreatment liquid of the present invention, the aqueous nonionic polyurethane used is a water-dispersed nonionic polyurethane. Preferably, the aqueous nonionic polyurethane is a polyol polyurethane aqueous resin, which is a polyurethane aqueous resin polymerized from a polyol and a polyisocyanate. More preferably, the aqueous nonionic polyurethane is a hydrophilic polyol polyurethane aqueous resin. Most preferably, the aqueous nonionic polyurethane is a polyol polyurethane aqueous resin with high hydrophilicity.
The pretreatment liquid of the present invention may include 1 to 20% by weight of a metal salt. Preferably, the pretreatment liquid of the present invention includes 5 to 15 wt% of a metal salt. More preferably, the pretreatment liquid of the present invention comprises 8 to 12 wt% of a metal salt. In one embodiment of the present invention, the pretreatment liquid includes about 10 wt% of metal salts.
In the pretreatment liquid of the present invention, the metal salt used is not particularly limited, and may be a multivalent metal salt, for example, a divalent, trivalent or tetravalent metal salt. For example, metal salts including Mg, Ca, Sr, Ba, Sc, Y, La, Ti, Zr, V, Cr, Mn, Fe, Ru, Co, Rh, Ni, Pd, Pt, Cu, Au, Zn, Al, Ga, In, Sb, Bi, Ge, Sn, or Pb may be mentioned. In an embodiment of the present invention, the metal salt is a metal salt including Mg, Ca, Ba, Ru, Co, Zn, Al or Ga. In another embodiment of the present invention, the metal salt is a metal salt including Ca. In yet another embodiment of the present invention, the metal salt is calcium chloride, calcium nitrate hydrate, or a combination thereof. In a further embodiment of the present invention, the metal salt is calcium chloride. The metal salts listed above may be used alone or in combination. The pretreatment liquid containing metal salts can help white ink or color ink coated on the fabric to be coagulated so as to form a white ink film or a color ink film.
The pretreatment liquid of the present invention may include 0.1 to 10 weight percent of melamine resin as a crosslinking agent. Preferably, the pretreatment liquid of the present invention comprises 0.1 to 5% by weight of melamine resin. More preferably, the pretreatment liquid of the present invention comprises 0.1 to 3% by weight of melamine resin. Preferably, the pretreatment liquid of the present invention comprises 0.3 to 1.5% by weight of a melamine resin. In one embodiment of the present invention, the pretreatment liquid includes about 0.6 weight percent melamine resin. In another embodiment of the present invention, the pretreatment liquid comprises about 1 weight percent melamine resin. In yet another embodiment of the present invention, the pretreatment liquid comprises about 1.2 weight percent melamine resin.
In the pretreatment liquid of the present invention, the melamine resin may be a monomethylated homoimide-based melamine resin, and specific examples thereof include Cymel 327 or Cymel 385. In the pretreatment liquid of the present invention, the melamine resin may also be a high methylated melamine resin, and specific examples thereof include Cymel 303 or Cymel 350. The melamine resins listed above can be used here individually or in combination.
The pretreatment liquid of the present invention may further comprise 0.01 to 2% by weight of a wetting agent. Preferably, the pretreatment liquid of the present invention includes 0.01 to 1 wt% of a wetting agent. More preferably, 0.1 to 0.5 weight percent of a humectant. In one embodiment of the present invention, the pretreatment liquid includes about 0.3 weight percent of a wetting agent.
Among the wetting agents, the kinds include: polyether modified silicone wetting agents (e.g., BYK348 and Silwet L-7280) or non-ionic wetting agents that are silicone free (e.g.:
465)。
in the pretreatment liquid of the present invention, the solvent used is preferably water.
The present invention provides a method for forming a pattern on a fabric using the pretreatment liquid, in addition to the pretreatment liquid, comprising the steps of: providing a fabric and the aqueous pigment textile printing pretreatment liquid; coating the pretreatment liquid on a preset area of the fabric, and curing at high temperature; and coating a white color paste or a color paste on the predetermined area coated with the pretreatment liquid to form a white pattern or a color pattern.
In the method of the present invention, the fabric may be a dark color fabric or a light color fabric. Specific examples of the kind of fabric include, but are not limited to, cotton cloth, hemp cloth, wool fabric, silk fabric, chemical fiber fabric, nylon cloth, nonwoven fabric, and the like.
In addition, in the method of the present invention, the temperature of the high-temperature curing of the pretreatment liquid may be between 130 ℃ and 165 ℃. Through the high-temperature curing step, the crosslinked water-based nonionic polyurethane has higher strength crosslinking property.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments.
The following embodiments of the present invention are described by way of examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The invention is capable of other and different embodiments and its several details are capable of modification in various other respects, all without departing from the spirit and scope of the present invention.
As used in this specification and the appended claims, the singular forms "a", "an", and "the" include one or more of the individual unless the context clearly dictates otherwise.
As used in the specification and the appended claims, the term "or" is generally employed in its sense including "and/or" unless the context clearly dictates otherwise.
Test example 1
In the following examples and comparative examples of the present invention, the aqueous pigment textile printing pretreatment liquids of examples 1 to 4 and comparative examples 1 to 5 were prepared according to the formulations of table 1 below.
TABLE 1
The prepared pretreatment liquids of examples 1 to 4 and comparative examples 1 to 5 were manually or automatically coated on 3/1 denim by machine, and then cured and dried at a high temperature of 130 to 165 ℃. Then, the white ink (DuPont ink) is injected through an APEX direct injection machine (EPSON DX5)TMArtisri P5910 White DTG Ink) is sprayed and printed on an area coated with the pretreatment liquid, and after drying and color fixing, a whiteness test, a dry rubbing fastness test, a wet rubbing fastness test and a washing fastness test are carried out.
Whiteness measurement
3/1 denim coated with white ink was subjected to Datacolor400 color measurement with CIE whiteness value using a light source D65.
Dry crock fastness test (AATCC8)
The "dry" black twill cloth (same as the scratch-off cloth, 3/1 denim) was rubbed back and forth ten times over the white ink-printed cloth. The rating is the result of comprehensive evaluation by using pollution (black cloth) and discoloration and fading.
Wet crock fastness test (AATCC8)
"Wet" black twill cloth (same as scratch cloth, 3/1 denim) (first soaked in water until wet and drained off with a water extractor for 2 minutes) was rubbed back and forth ten times over the white ink-printed cloth. The rating is the result of comprehensive evaluation by using pollution (black cloth) and discoloration and fading.
Wash fastness test (AATCC3A)
The formula and the steps of the washing fastness test are as follows:
a) the formula of the soaping agent comprises: 100g H2O+0.15g WOB。
b) Placing a piece of cloth (5cm x 15cm) and 106.7g of steel balls (about 100) in each cylinder, and adding 50g of soaping agent aqueous solution; washing with water at 70 deg.C for 45 min; then, the cloth was washed with a soaping agent and placed in an oven at 60 ℃ for drying.
The results of the whiteness test, the dry crockfastness test, the wet crockfastness test and the washing fastness test are shown in table 2 below.
TABLE 2
As shown in the results of Table 2 above, the pretreatment liquids of comparative examples 1 to 4 were not effective in various fastness tests. Although the pretreatment liquid of comparative example 5 exhibited better dry and wet rubbing fastness due to the use of the PVA crosslinking agent, the washing fastness was still not good. In contrast to the pretreatment liquids of examples 1 to 4, in the case of using a melamine resin as a crosslinking agent, higher strength crosslinkability can be produced at high temperature curing (130 ℃ to 165 ℃), and not only is the whiteness good, but also the washing fastness and the dry and wet rubbing fastness are quite excellent.
Test example 2
In this test example, the pretreatment liquid of example 3 prepared in test example 1 and dupont pretreatment liquid P5100 were used for the test. In this test example, the jet printing conditions were the same as those described in test example 1, and thus are not described again. The test results of the dry crockfastness test, the wet crockfastness test and the washing fastness test are shown in table 3 below.
TABLE 3
As shown in the results of table 3, compared to using the dupont pretreatment liquid, when the pretreatment liquid of example 3 is used in combination with dupont ink, the whiteness is better, sharper printed images can be obtained, and various fastness tests are performed better.
Test example 3
In this test example, the pretreatment liquid of example 3 prepared in test example 1 and dupont pretreatment liquid P5100 were used for the test. In this test example, the inkjet printing conditions were the same as those described in test example 1, except that DuPont ink was used in test example 1, and white ink shown in Table 6 in Taiwan patent application No. 107115631 was used in this test example. The test results of the dry crockfastness test, the wet crockfastness test and the washing fastness test are shown in table 4 below.
TABLE 4
As shown in the results of table 4 above, the pretreatment liquid of example 3 used with the white ink shown in taiwan patent application No. 107115631 shows performance of 4-5 grades in dry rubbing fastness test, wet rubbing fastness test and washing fastness test.
Test example 4
In this test example, the pretreatment liquid of example 3 prepared in test example 1 was used for the test. In this test example, the jet printing conditions were the same as described in test example 1, except that test example 1 used 3/1 denim and DuPont white ink, while test example 3/1 denim and color ink DuPont P5910 Series.
In this test example, the difference in color strength after thermosetting of the pigment-based ink was compared between the case where the pretreatment liquid of example 3 was used and the case where no pretreatment liquid was used. The Integ value of the sample not using the pretreatment liquid was set to 100%. The test results are listed in table 5 below.
TABLE 5
As shown in the results of table 4, the Integ values of the pigment-based inks after thermal curing are all improved when the pretreatment liquid of example 3 is used, which indicates that the color strength is improved, and the pigment-based inks and the fabrics have good fastness and color uniformity when the pretreatment liquid of example 3 is used.
In conclusion, when the aqueous pigment pretreatment liquid for textile printing is used on dark fabrics, the ink fastness of white ink can be improved, and the white ink can be prevented from permeating. In addition, when the pretreatment liquid for textile printing of the water-based pigment is used on light-colored fabrics, the chroma and the color uniformity of the pigment-type color ink can be improved.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A water-based pigment pretreatment liquid for textile printing comprises:
1 to 30 weight percent of an aqueous nonionic polyurethane;
1 to 20% by weight of a metal salt;
0.1 to 10 weight percent of a melamine resin; and
the balance being solvent.
2. The pretreatment liquid according to claim 1, further comprising: 0.01 to 2% by weight of a wetting agent.
3. The pretreatment liquid according to claim 1, wherein the aqueous nonionic polyurethane is a polyol polyurethane aqueous resin.
4. The pretreatment liquid according to claim 1, wherein the metal salt is a divalent, trivalent or tetravalent metal salt.
5. The pretreatment liquid according to claim 4, wherein the metal salt is calcium chloride.
6. The pretreatment liquid according to claim 1, wherein the melamine resin is a methylated high imino group melamine resin.
7. The pretreatment liquid according to claim 1, wherein the melamine resin is a highly methylated melamine resin.
8. The pretreatment liquid according to claim 1, wherein the solvent is water.
9. A method of forming a pattern on a fabric comprising the steps of:
providing a textile and the aqueous pigmented textile printing pretreatment liquor of any of claims 1-8;
coating the pretreatment liquid on a preset area of the fabric, and curing at high temperature; and
coating a white color paste or a color paste on the predetermined area coated with the pretreatment liquid to form a white pattern or a color pattern.
10. The method of claim 9, wherein the high temperature curing temperature is between 130 ℃ and 165 ℃.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910373367.0A CN111893783B (en) | 2019-05-06 | 2019-05-06 | Pretreatment liquid for water-based pigment textile printing and method for forming pattern on fabric |
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| CN201910373367.0A CN111893783B (en) | 2019-05-06 | 2019-05-06 | Pretreatment liquid for water-based pigment textile printing and method for forming pattern on fabric |
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| CN111893783A true CN111893783A (en) | 2020-11-06 |
| CN111893783B CN111893783B (en) | 2023-01-10 |
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Citations (7)
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|---|---|---|---|---|
| US6419989B1 (en) * | 1998-09-23 | 2002-07-16 | Basf Coatings Ag | Scratch-resistant sol-gel coating for clear powder-slurry lacquer |
| US20070093576A1 (en) * | 2003-10-15 | 2007-04-26 | Ciba Specialty Chemicals Holding Inc. | Reinforced coatings with improved scratch resistance |
| US20080092309A1 (en) * | 2006-09-15 | 2008-04-24 | Ellis Scott W | Fabric pretreatment for inkjet printing |
| US20110102497A1 (en) * | 2007-12-28 | 2011-05-05 | Sakata Inx Corp. | Treatment solution for inkjet textile printing, method for inkjet textile printing, and inkjet textile printed product |
| JP2011105805A (en) * | 2009-11-13 | 2011-06-02 | Union Chemicar Co Ltd | White ink for inkjet textile printing |
| US20120251795A1 (en) * | 2011-03-30 | 2012-10-04 | Brother Kogyo Kabushiki Kaisha | Treatment agent, method for forming image, method for producing treatment agent, method for producing fabric having image, and fabric having image |
| CN106255781A (en) * | 2014-02-28 | 2016-12-21 | 路博润先进材料公司 | For digital printed fabric pretreatment |
-
2019
- 2019-05-06 CN CN201910373367.0A patent/CN111893783B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6419989B1 (en) * | 1998-09-23 | 2002-07-16 | Basf Coatings Ag | Scratch-resistant sol-gel coating for clear powder-slurry lacquer |
| US20070093576A1 (en) * | 2003-10-15 | 2007-04-26 | Ciba Specialty Chemicals Holding Inc. | Reinforced coatings with improved scratch resistance |
| US20080092309A1 (en) * | 2006-09-15 | 2008-04-24 | Ellis Scott W | Fabric pretreatment for inkjet printing |
| US20110102497A1 (en) * | 2007-12-28 | 2011-05-05 | Sakata Inx Corp. | Treatment solution for inkjet textile printing, method for inkjet textile printing, and inkjet textile printed product |
| JP2011105805A (en) * | 2009-11-13 | 2011-06-02 | Union Chemicar Co Ltd | White ink for inkjet textile printing |
| US20120251795A1 (en) * | 2011-03-30 | 2012-10-04 | Brother Kogyo Kabushiki Kaisha | Treatment agent, method for forming image, method for producing treatment agent, method for producing fabric having image, and fabric having image |
| CN106255781A (en) * | 2014-02-28 | 2016-12-21 | 路博润先进材料公司 | For digital printed fabric pretreatment |
| US20170058453A1 (en) * | 2014-02-28 | 2017-03-02 | Lubrizol Advanced Materials, Inc. | Fabric pretreatment for digital printing |
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