CN115216980A - Transfer printing process for polyester fabric - Google Patents
Transfer printing process for polyester fabric Download PDFInfo
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- CN115216980A CN115216980A CN202210982635.0A CN202210982635A CN115216980A CN 115216980 A CN115216980 A CN 115216980A CN 202210982635 A CN202210982635 A CN 202210982635A CN 115216980 A CN115216980 A CN 115216980A
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- transfer
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- printing process
- polyester
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- 239000004744 fabric Substances 0.000 title claims abstract description 57
- 238000010023 transfer printing Methods 0.000 title claims abstract description 30
- 229920000728 polyester Polymers 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000008569 process Effects 0.000 title claims abstract description 21
- 238000007639 printing Methods 0.000 claims abstract description 56
- 229920000742 Cotton Polymers 0.000 claims abstract description 25
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000012546 transfer Methods 0.000 claims abstract description 23
- 238000001035 drying Methods 0.000 claims abstract description 17
- 238000007731 hot pressing Methods 0.000 claims abstract description 17
- 229920002545 silicone oil Polymers 0.000 claims abstract description 13
- 239000004593 Epoxy Substances 0.000 claims abstract description 12
- 235000010333 potassium nitrate Nutrition 0.000 claims abstract description 12
- 239000004323 potassium nitrate Substances 0.000 claims abstract description 12
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000004202 carbamide Substances 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 11
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 238000010025 steaming Methods 0.000 claims abstract description 10
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 9
- 238000007641 inkjet printing Methods 0.000 claims abstract description 9
- 238000010030 laminating Methods 0.000 claims abstract description 9
- 238000003490 calendering Methods 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- 239000002562 thickening agent Substances 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 238000005406 washing Methods 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000000986 disperse dye Substances 0.000 claims description 11
- 239000000985 reactive dye Substances 0.000 claims description 11
- 239000000975 dye Substances 0.000 claims description 7
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical group [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 6
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 6
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 6
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 6
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 6
- 239000008149 soap solution Substances 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 3
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 3
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 claims description 2
- 239000001863 hydroxypropyl cellulose Substances 0.000 claims description 2
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 claims description 2
- 239000004753 textile Substances 0.000 abstract description 6
- 238000002156 mixing Methods 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 7
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 229920002799 BoPET Polymers 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920004933 Terylene® Polymers 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- -1 moisture absorption Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
- D06P1/46—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 natural macromolecular substances or derivatives thereof
- D06P1/48—Derivatives of carbohydrates
- D06P1/50—Derivatives of cellulose
-
- 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
- D06P1/16—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 dispersed, e.g. acetate, dyestuffs
-
- 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
- D06P1/38—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 reactive dyes
-
- 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
- D06P1/5292—Macromolecular compounds obtained otherwise than by reactions involving only unsaturated carbon-to-carbon bonds containing Si-atoms
-
- 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
- D06P1/655—Compounds containing ammonium groups
-
- 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
- D06P1/67391—Salts or oxidising-compounds mixtures
-
- 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
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/82—Textiles which contain different kinds of fibres
- D06P3/8204—Textiles which contain different kinds of fibres fibres of different chemical nature
- D06P3/8223—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and ester groups
- D06P3/8238—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and ester groups using different kinds of dye
- D06P3/8252—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and ester groups using different kinds of dye using dispersed and reactive dyes
-
- 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
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/30—Ink jet printing
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Coloring (AREA)
Abstract
The invention relates to a transfer printing process of polyester fabrics, which comprises the steps of preparing a printing paste comprising 5-10% of a thickening agent, 3-5% of an alkaline agent and 4-9% of a printing auxiliary agent, wherein the printing auxiliary agent comprises urea, potassium nitrate and epoxy modified silicone oil; then coating the printing paste on transfer base paper, and drying and calendaring to prepare transfer paper; carrying out ink-jet printing on the surface of the transfer paper to prepare printing paper; and carrying out hot-pressing laminating on the surface of the printing paper with the printing pattern and the polyester-cotton fabric to be printed, steaming and stripping the printing paper, cleaning and drying in sequence to obtain the printed fabric. By applying the transfer printing process, the color quantity and the color fastness of the polyester cotton printed fabric can be effectively improved without carrying out pretreatment or step-by-step treatment on the polyester cotton textile fabric, and the transfer printing process has wide application prospect.
Description
Technical Field
The invention relates to the technical field of textile processing, in particular to a transfer printing process for a polyester fabric.
Background
Polyester-cotton blended fabrics are widely favored by people because of the advantages of crease resistance, wear resistance, easy washing and quick drying of terylene, moisture absorption, air permeability, softness and comfort of cotton fabrics. However, the traditional screen printing of polyester cotton fabric is difficult to meet the requirement of clean production due to high wastewater discharge. When the polyester-cotton fabric is printed by the coating, the coating and the fiber have no binding force, and an adhesive needs to be added, so that the printed fabric has poor hand feeling, air permeability and wet rubbing fastness.
Compared with the traditional printing method, the transfer printing method has the characteristics of high rate of certified products, fine pattern, strong flexibility and clean production. Dry transfer printing, as a novel transfer printing technology, can allow natural fabrics to be attached to transfer paper in a dry state to complete the migration and fixation of dyes, thereby having a wide development prospect. However, when the dry printing is applied to transfer printing of the polyester blended fabric, the defects of low color quantity, insufficient color fastness and the like still exist due to the difference of physicochemical properties of two fibers in the blended fabric.
Disclosure of Invention
The invention aims to provide a transfer printing process for polyester fabrics, and the polyester cotton printed fabrics with high color quantity and good color fastness can be obtained by applying the preparation method provided by the invention.
Therefore, the invention provides a transfer printing process of a polyester fabric, which comprises the following steps:
s1, preparing printing paste, wherein the printing paste comprises, by mass, 5-10% of a thickening agent, 3-5% of an alkaline agent, 4-9% of a printing auxiliary agent and the balance of water; the printing auxiliary agent comprises urea, potassium nitrate and epoxy modified silicone oil;
s2, coating the printing paste prepared in the step S1 on transfer base paper, and drying and calendaring to prepare transfer paper;
s3, performing ink-jet printing on the surface of the transfer paper prepared in the step S2 to prepare printing paper;
and S4, carrying out hot-pressing laminating on the side, provided with the printed pattern, of the printing paper prepared in the step S3 and the polyester-cotton fabric to be printed, and then sequentially steaming, stripping, cleaning and drying the printing paper to prepare the printed fabric.
Further, in the printing auxiliary agent, the mass ratio of urea to potassium nitrate to epoxy modified silicone oil is 1-2:1-2:3-5; for example, the mass ratio can be 1.
According to the technical scheme of the invention, the printing auxiliary agent comprises urea, potassium nitrate and epoxy modified silicone oil, wherein the urea mainly plays a role of a moisture absorbent; the epoxy modified silicone oil is beneficial to improving the cohesiveness, and meanwhile, the reactivity and the adsorptivity of the epoxy modified silicone oil can have better compatibility with dye after ink-jet printing and promote the transfer of the dye in the hot-pressing and attaching process; the addition of potassium nitrate helps to increase the stability of the dye transfer, probably due to its improved compatibility of the substances in the paste.
Further, in step S1, the thickener includes one or a combination of two selected from the group consisting of: sodium carboxymethylcellulose and hydroxypropyl cellulose.
Further, in step S1, the alkaline agent is sodium bicarbonate.
According to the technical scheme of the invention, sodium bicarbonate is selected as the alkaline agent, so that on one hand, an alkaline environment can be provided for attaching the reactive dye to the cotton fiber, and on the other hand, the negative influence on the transfer printing of the disperse dye caused by using a reagent with too strong alkalinity can be avoided.
Further, in step S2, the drying temperature is 50-70 ℃.
Further, in step S2, the calendering temperature is 20-30 ℃, the rotation speed of a compression roller is 10-15r/min, and the pressure is 0.1-0.3Mpa.
Further, in step S2, the transfer base paper is selected from paper, a PET film, or a PE film.
Further, in step S3, the dye for inkjet printing includes a reactive dye and a disperse dye.
Further, the volume ratio of the reactive dye to the disperse dye is 2-3:2-3; for example, the volume of the reactive dye and the disperse dye can be 1:1, 2:3, 3:2, and the like.
Further, in the step S4, the hot-pressing and laminating temperature is 125-135 ℃; the hot-pressing laminating pressure is 1-5Mpa, the roller rotating speed is 5-8r/min, and the hot pressing is carried out for 1-3 times.
According to the technical scheme of the invention, hot-pressing laminating is carried out under the temperature condition, and the characteristics of the transfer paper and the polyester-cotton fabric can be furthest matched to realize high-efficiency transfer printing. If the temperature is higher than 135 ℃, the adverse effect of color change is easily caused, and if the temperature is lower than 125 ℃, the insufficient transfer printing is easily caused, and the color quantity of the prepared printed fabric is influenced.
Further, in step S4, the steaming conditions include steaming at 100-110 ℃ for 20-30min.
Further, in step S4, the cleaning includes washing with water and soaping in sequence; the washing condition comprises washing with cold water for 5-10min; the soaping condition comprises washing in 90-95 deg.C soap solution for 5-10min.
Further, in step S4, the drying temperature is 55-65 ℃.
According to the technical scheme of the invention, because the polyester-cotton blended fabric simultaneously contains polyester and cotton fibers and adopts the reactive dye and the disperse dye as the dyes, the problems of different characteristics of the polyester and the cotton fibers and different transfer printing and color fixing characteristics of the reactive dye and the disperse dye are simultaneously faced in the transfer printing process. The invention starts with the improvement of printing paste and is optimized by combining with the key step in transfer printing, thereby obviously improving the color quantity and the color fastness of the polyester cotton printed fabric.
In a second aspect of the invention, there is provided a printed fabric produced according to the method of the first aspect of the invention.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
the invention provides a transfer printing process suitable for polyester-cotton textiles, which can effectively improve the color quantity and color fastness of the polyester-cotton printed textiles without pretreatment or step-by-step treatment and the like of the polyester-cotton textiles by improving the components and the proportion of printing paste and combining the optimization of steps in a transfer printing preparation method, and has wide application prospect.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below. It should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The following detailed description, not explicitly indicated, employs conventional laboratory procedures in the art and commercially available reagents. Wherein, the epoxy modified silicone oil adopts commercial Xinyue X-22-2000 modified silicone oil. Unless otherwise indicated, the percentages in the following detailed description are percentages by mass.
Example 1
This example provides a printed fabric, which is prepared as follows:
(1) Preparing printing paste: 5% of sodium carboxymethylcellulose, 3% of sodium bicarbonate, 2% of urea, 1% of potassium nitrate, 5% of epoxy modified silicone oil and the balance of water; mixing and uniformly stirring the raw materials to prepare the printing paste;
(2) Coating the printing paste on the surface of a transfer base paper PET film, wherein the thickness of the coating is 0.5mm, and drying at 60 ℃; then calendering is carried out, the temperature is 25 ℃, the rotating speed of a press roll is 10r/min, and the pressure is 0.2Mpa, so that the transfer paper is prepared;
(3) Uniformly mixing a red reactive dye and a red disperse dye according to a volume ratio of 1:1, and then printing the mixture on the surface of the transfer paper in an ink-jet printing manner to prepare printing paper;
(4) Carrying out hot pressing and laminating on one surface of the printing paper with the printed patterns and a polyester-cotton fabric to be printed (the blending ratio of polyester to cotton is 50/50) at 125 ℃ and 5Mpa, wherein the rotating speed of a press roller is 6r/min, and hot pressing is carried out for 2 times; then steaming at 101 ℃ for 20min, peeling off the printing paper, washing with cold water for 5min, washing with 95 ℃ soap solution (bath ratio 1; and then drying at 65 ℃ to obtain the printed fabric I-1.
Example 2
This example provides a printed fabric, which is prepared as follows:
(1) Preparing printing paste: 8% of sodium carboxymethylcellulose, 4% of sodium bicarbonate, 1% of urea, 2% of potassium nitrate, 4% of epoxy modified silicone oil and the balance of water; mixing and uniformly stirring the raw materials to prepare printing paste;
(2) Coating the printing paste on the surface of a transfer base paper PET film, wherein the thickness of the coating is 0.5mm, and drying at 60 ℃; then calendering is carried out, the temperature is 25 ℃, the rotating speed of a press roll is 10r/min, and the pressure is 0.2Mpa, so as to prepare the transfer paper;
(3) Uniformly mixing yellow reactive dye and yellow disperse dye according to a volume ratio of 3:2, and then printing the mixture on the surface of the transfer paper in an ink-jet printing mode to prepare printing paper;
(4) Carrying out hot pressing and laminating on one surface of the printing paper with the printed patterns and a polyester-cotton fabric to be printed (the blending ratio of polyester to cotton is 50/50) at 130 ℃ and 1Mpa, wherein the rotating speed of a press roller is 5r/min, and the hot pressing is carried out for 3 times; then steaming at 105 ℃ for 20min, peeling off the printing paper, washing with cold water for 10min, washing in soap solution (bath ratio of 1; and then drying at 55 ℃ to obtain the printed fabric I-2.
Example 3
This example provides a printed fabric, which is prepared as follows:
(1) Preparing printing paste: 10% of sodium carboxymethylcellulose, 5% of sodium bicarbonate, 1% of urea, 1% of potassium nitrate, 3% of epoxy modified silicone oil and the balance of water; mixing and uniformly stirring the raw materials to prepare printing paste;
(2) Coating the printing paste on the surface of a transfer base paper PET film, wherein the thickness of the coating is 0.5mm, and drying at 65 ℃; then calendering is carried out, the temperature is 30 ℃, the rotating speed of a compression roller is 15r/min, and the pressure is 0.3Mpa, so as to prepare the transfer paper;
(3) Uniformly mixing a cyan reactive dye and a cyan disperse dye according to a volume ratio of 1:1, and then printing the mixture on the surface of the transfer paper in an ink-jet printing manner to prepare printing paper;
(4) Carrying out hot pressing and laminating on one surface of the printing paper with the printed patterns and a polyester-cotton fabric to be printed (the blending ratio of polyester to cotton is 50/50) at 135 ℃ and 1Mpa, wherein the rotating speed of a press roller is 8r/min, and the hot pressing is carried out for 1 time; then steaming at 110 ℃ for 20min, peeling off the printing paper, washing with cold water for 5min, washing with 95 ℃ soap solution (bath ratio 1; and then drying at 60 ℃ to obtain the printed fabric I-3.
Comparative example 1
The preparation was carried out as in example 1, except that the formulation of the printing paste was varied, to obtain printed fabric II-1. In this comparative example, the printing paste formulation was: 10% of sodium carboxymethylcellulose, 3% of sodium bicarbonate, 1% of urea, 2% of potassium nitrate and the balance of water.
Comparative example 2
The preparation was carried out in the same manner as in example 1 except that potassium nitrate was not contained in the printing paste, to obtain a printed fabric II-2.
Comparative example 3
The preparation was carried out in the same manner as in example 1 except that sodium hydroxide was used in the printing paste in place of sodium bicarbonate, to obtain printed fabric II-3.
Comparative example 4
The preparation was carried out in the same manner as in example 1 except that the hot press bonding was carried out at 140 ℃ to obtain a printed fabric II-4.
Comparative example 5
The preparation was carried out in the same manner as in example 1 except that the hot press bonding was carried out at 120 ℃ to obtain a printed fabric II-5.
Examples of the experiments
The printed fabrics prepared in examples 1-3 and comparative examples 1-5 were subjected to color characteristic value measurement.
K/S value: folding the printed fabric twice and using a color measuring instrument at D 65 And (3) under a light source and an observation angle of 10 degrees, testing the apparent color depth values of the front surface before water washing and the front surface and the back surface after water washing, respectively testing for four times, and taking an average value.
Permeability:
in the formula, (K/S) f The front color depth value of the printed fabric after washing; (K/S) b And the color depth value of the back surface of the printed fabric after washing.
Color fastness: determining the color fastness to rubbing according to GB/T3920-2008 'color fastness to rubbing test'; and (4) determining the soaping-resistant color fastness by referring to GB/T3921-2008 soaping-resistant color fastness of textile color fastness test.
The detection results of the color feature values are shown in table 1.
TABLE 1 color eigenvalue test results
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. The transfer printing process of the polyester fabric is characterized by comprising the following steps of:
s1, preparing printing paste, wherein the printing paste comprises, by mass, 5-10% of a thickening agent, 3-5% of an alkaline agent, 4-9% of a printing auxiliary agent and the balance of water; the printing auxiliary agent comprises urea, potassium nitrate and epoxy modified silicone oil;
s2, coating the printing paste prepared in the step S1 on transfer base paper, and drying and calendaring to prepare transfer paper;
s3, performing ink-jet printing on the surface of the transfer paper prepared in the step S2 to prepare printing paper;
and S4, carrying out hot-pressing laminating on the surface of the printing paper with the printed pattern, which is prepared in the step S3, and the polyester-cotton fabric to be printed, and then sequentially steaming, stripping, cleaning and drying the printing paper to obtain the printed fabric.
2. The transfer printing process of the polyester fabric as claimed in claim 1, wherein the mass ratio of the urea to the potassium nitrate to the epoxy modified silicone oil in the printing auxiliary agent is 1-2:1-2:3-5.
3. The transfer printing process of polyester fabric according to claim 1, wherein in step S1, the alkaline agent is sodium bicarbonate.
4. The transfer printing process of polyester fabric according to claim 1, wherein in step S1, the thickener comprises one or a combination of two selected from the group consisting of: sodium carboxymethyl cellulose, hydroxypropyl cellulose.
5. The transfer printing process of the polyester fabric according to claim 1, wherein in the step S2, the drying temperature is 50-70 ℃;
preferably, the calendering temperature is 20-30 ℃, the rotation speed of a compression roller is 10-15r/min, and the pressure is 0.1-0.3Mpa.
6. The transfer printing process of polyester fabric according to claim 1, wherein in step S3, the dyes for the inkjet printing comprise reactive dyes and disperse dyes;
preferably, the volume ratio of the reactive dye to the disperse dye is 2-3:2-3.
7. The transfer printing process of the polyester fabric as claimed in claim 1, wherein the temperature of the hot-pressing attaching in the step S4 is 125-135 ℃.
8. The transfer printing process of the polyester fabric as claimed in claim 7, wherein the pressure of the hot pressing and attaching is 1-5Mpa, the rotation speed of the roller is 5-8r/min, and the hot pressing is performed for 1-3 times.
9. The transfer printing process of the polyester fabric as claimed in claim 1, wherein in the step S4, the steaming conditions include steaming at 100-110 ℃ for 20-30min;
preferably, the washing comprises water washing and soaping in sequence; the washing condition comprises washing with cold water for 5-10min; the soaping condition comprises washing in 90-95 deg.C soap solution for 5-10min;
preferably, the temperature of the drying is 55-65 ℃.
10. A printed fabric prepared by the transfer printing process of the polyester fabric according to any one of claims 1 to 9.
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