Transfer printing process for high-weather-resistance polyester fiber fabric

Abstract

The invention discloses a transfer printing process for a high-weather-resistance polyester fiber fabric. The transfer printing process comprises the following steps: preparing weather-resistance ink, wherein the weather-resistance ink comprises a disperse dye, ethanol, glycerol, an ultraviolet light absorber, a nonionic wetting dispersant, an anionic hyperdispersant, an acrylic resin emulsion thickener and water; preparing transfer printing paper: printing weather-resistant ink on the surface of the heat sublimation transfer printing paper according to a set pattern; and transfer printing: attaching one side of the pattern of the transfer printing paper to the surface of the polyester fiber fabric, and ironing by adopting thermal transfer printing equipment. By using the weather-resistant ink, the polyester product has good stability and durability in weather and environment with strong ultraviolet rays. The use of the weather-resistant ink meets the environmental protection requirements of people on energy conservation and emission reduction, the harm to the environment and human health is reduced by using the process of replacing dyeing with printing, and the pursuit of current examples on green and sustainable development is met.

Description

Technical Field

[0001] The invention relates to a transfer printing process for a highly weather-resistant polyester fiber fabric, and belongs to the technical field of transfer printing. Background Art

[0002] With the intensification of global climate change and environmental pollution, the climate and environmental challenges faced by products during use are also increasing. In many application areas, such as outdoor textiles and outdoor home products, the demand for high weather resistance and long-term durability is increasing every year. With the continuous improvement of environmental awareness, people are more and more aware of the so-called "energy conservation and emission reduction" in product production. The process of "printing instead of dyeing" has become one of the key projects to overcome wastewater discharge. How to design a transfer printing process for highly weather-resistant polyester fiber fabrics has become a problem to be solved. Summary of the invention

[0003] The purpose of the present invention is to provide a transfer printing process for polyester fiber fabrics with high weather resistance, which can improve the stability and durability of polyester fiber fabrics in climates and environments with strong ultraviolet rays, so that the polyester fiber fabrics will not fade and are durable during long-term use.

[0004] To solve the above technical problems, the purpose of the present invention is achieved as follows:

[0005] The invention relates to a transfer printing process for a highly weather-resistant polyester fiber fabric, comprising the following steps:

[0006] S1. Preparation of weather-resistant ink: The weather-resistant ink comprises disperse dye, ethanol, glycerin, ultraviolet absorber, nonionic wetting dispersant, anionic superdispersant, acrylic resin emulsion thickener and water;

[0007] S2, preparation of transfer printing paper: printing weather-resistant ink on one side of the thermal sublimation transfer printing paper according to a set pattern using an inkjet printer to prepare the transfer printing paper;

[0008] S3, transfer printing: fit one side of the transfer printing paper pattern to one side of the polyester fiber fabric surface, and use heat transfer printing equipment for hot pressing.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: calculated by weight ratio, the amount of the disperse dye is 4.0-6.5%, the amount of the ethanol is 5%, the amount of the glycerol is 25%, the amount of the ultraviolet absorber is 1.0%, the amount of the nonionic wetting and dispersing agent is 1.0%, the amount of the anionic hyperdispersant is 1.5%, the amount of the acrylic resin emulsion thickener is 0.1-0.5%, and the balance is water.

[0010] On the basis of the above scheme and as a preferred scheme of the above scheme: the disperse dye is disperse dye blue, disperse dye red, disperse dye yellow or disperse dye ink; the disperse dye ink is composed of disperse dye blue, disperse dye red and disperse dye yellow.

[0011] On the basis of the above scheme and as a preferred scheme of the above scheme: the structural formula of the disperse dye blue is The structural formula of the disperse dye red is The structural formula of the disperse dye yellow is

[0012] On the basis of the above scheme and as a preferred scheme of the above scheme: the CAS No. of the nonionic wetting and dispersing agent is 64422-66-8, the CAS No. of the anionic hyperdispersant is 308061-37-2, and the CAS No. of the acrylic resin emulsion thickener is 25767-39-9.

[0013] The beneficial effects of the present invention are as follows: the transfer printing process for highly weather-resistant polyester fiber fabrics of the present invention enables the polyester product to have good stability and durability in a climate and environment with strong ultraviolet rays by using weather-resistant ink. The use of weather-resistant ink meets people's environmental protection requirements for energy saving and emission reduction, and the use of printing instead of dyeing reduces the harm to the environment and human health, which meets the current pursuit of green and sustainable development. DETAILED DESCRIPTION

[0014] The present invention is further described below in conjunction with specific embodiments.

[0015] The invention relates to a transfer printing process for a highly weather-resistant polyester fiber fabric, comprising the following steps:

[0016] S1. Preparation of weather-resistant ink: The weather-resistant ink comprises disperse dye, ethanol, glycerin, ultraviolet absorber, non-ionic wetting dispersant, anionic superdispersant, acrylic resin emulsion thickener and water.

[0017] Furthermore, according to the weight ratio, the amount of the disperse dye is 4.0-6.5%, the amount of the ethanol is 5%, the amount of the glycerol is 25%, the amount of the ultraviolet absorber is 1.0%, the amount of the nonionic wetting and dispersing agent is 1.0%, the amount of the anionic hyperdispersant is 1.5%, the amount of the acrylic resin emulsion thickener is 0.1-0.5%, and the balance is water.

[0018] Further, the structural formula of the disperse dye blue is The structural formula of the disperse dye red is The structural formula of the disperse dye yellow is

[0019] Furthermore, the CAS No. of the nonionic wetting and dispersing agent is 64422-66-8, the CAS No. of the anionic hyperdispersant is 308061-37-2, and the CAS No. of the acrylic resin emulsion thickener is 25767-39-9.

[0020] S2. Preparation of transfer printing paper: Printing weather-resistant ink on one surface of thermal sublimation transfer printing paper according to a set pattern using an inkjet printer to prepare transfer printing paper.

[0021] S3, transfer printing: fit one side of the transfer printing paper pattern to one side of the polyester fiber fabric surface, and use heat transfer printing equipment for hot pressing.

[0022] Example 1

[0023] The present embodiment involves a transfer printing process for a highly weather-resistant polyester fiber fabric, in which the weather-resistant ink used includes 4.0% disperse dye blue, 5% ethanol, 25% glycerol, 1.0% ultraviolet absorber, 1.0% non-ionic wetting dispersant, 1.5% anionic super dispersant, 0.5% acrylic resin emulsion thickener, and the balance is water.

[0024] The weather-resistant ink is printed on one side of the thermal sublimation transfer printing paper according to a set pattern using an inkjet printer to produce the transfer printing paper.

[0025] The transfer printing paper pattern is placed on one side of the polyester fiber fabric and hot-stamped using a heat transfer printing device. The hot-stamping pressure is 4.5 kg, the hot-stamping time is 20 seconds, and the hot-stamping temperature is 210°C. The polyester fiber fabric used is a plain cloth with a gram weight of 220 grams per square meter.

[0026] Example 2

[0027] The transfer printing process for a highly weather-resistant polyester fiber fabric involved in this embodiment is different from that in the first embodiment in that the dye used is disperse dye red, and the dosage is 5.2%. The dosage of acrylic resin emulsion thickener is 0.3%. The pressing pressure is 4.0KG, the pressing time is 18s, and the pressing temperature is 204°C. The polyester fiber fabric used is plain cloth, and the gram weight is 220 grams per square meter.

[0028] Example 3

[0029] The transfer printing process for a highly weather-resistant polyester fiber fabric involved in this embodiment is different from that in the first embodiment in that the dye used is disperse dye yellow, and the dosage is 6.0%. The dosage of acrylic resin emulsion thickener is 0.5%. The ironing pressure is 4.3KG, the ironing time is 16s, and the ironing temperature is 205°C. The polyester fiber fabric used is plain cloth, and the gram weight is 220 grams per square meter.

[0030] Example 4

[0031] The transfer printing process for a highly weather-resistant polyester fiber fabric involved in this embodiment is different from that in the first embodiment in that the dye used is disperse dye black, the dosage is 5.2%, and the dosage of acrylic resin emulsion thickener is 0.3%. The pressing pressure is 4.6KG, the pressing time is 21s, and the pressing temperature is 195°C. The polyester fiber fabric used is plain cloth with a gram weight of 220 grams per square meter.

[0032] The disperse dye black is prepared by dispersing dye blue, disperse dye red and disperse dye yellow. The disperse dye black prepared by mixing disperse dye blue, disperse dye red and disperse dye yellow in different proportions has different shades of color. In this embodiment, disperse dye blue, disperse dye red and disperse dye yellow are prepared into disperse dye black in a ratio of 1:1:1.

[0033] Example 5

[0034] The transfer printing process for a highly weather-resistant polyester fiber fabric involved in this embodiment is different from that in the first embodiment in that the weather-resistant ink used also includes a penetrant, polyethyl silicate and α-hydroxyalkyl phenone 3-4, with the amounts being 1%, 0.2% and 0.3% respectively, and the Cas NO. of the penetrant is 577-11-7.

[0035] Comparative Example 1

[0036] The transfer printing process for polyester fiber fabric involved in this comparative example is different from that in Example 1 in that the Cas NO. of the dye blue used is 12217-80-0.

[0037] Comparative Example 2

[0038] The transfer printing process for polyester fiber fabric involved in this comparative example is different from that in Example 2 in that the Cas NO. of the dye red used is 2379-90-0.

[0039] Comparative Example 3

[0040] The transfer printing process for polyester fiber fabric involved in this comparative example is different from that in Example 3 in that the Cas NO. of the dye yellow used is 10319-14-9.

[0041] Comparative Example 4

[0042] The transfer printing process for polyester fiber fabric involved in this comparative example is different from that of Example 3 in that the black dye used is prepared by mixing blue dye 12217-80-0, red dye 2379-90-0 and yellow dye 10319-14-9 in a ratio of 1:1:1.

[0043] In accordance with GB / T 18830-2009 “Evaluation of UV Protection of Textiles”, a single sample is tested 5 times and the average value is the final test result.

[0044] The test is carried out in accordance with GB / T 8427-2008 "Textiles - Tests for colour fastness - Colour fastness to artificial light: Xenon arc fading". The grey scale for colour change assessment in GB250-2008 is used to assess the original colour change.

[0045] The anti-ultraviolet performance and color fastness to sunlight of Examples 1 to 5 and Comparative Examples 1 to 4 were tested, and the results are as follows:

[0046] Test items UPF value UVA / % Color fastness to sunlight Polyester original fabric 34 8.56 - Example 1 100+ 3.24 4-5 Example 2 100+ 3.76 4-5 Example 3 100+ 3.15 4-5 Example 4 100+ 2.34 4-5 Example 5 100+ 2.68 4-5 Comparative Example 1 78 6.34 4 Comparative Example 2 82 7.26 3-4 Comparative Example 3 79 6.75 3-4 Comparative Example 4 83 6.16 4

[0047] For Example 1 to Example 5 and Comparative Example 1 to Comparative Example 4, the color difference ΔE of the samples after being exposed to sunlight for different time periods was tested. The results are shown in the following table:

[0048] Sun exposure time 10 hours 50 hours 100 hours Example 1 0.86 2.56 6.90 Example 2 0.95 2.76 6.13 Example 3 0.87 3.48 7.16 Example 4 1.08 3.29 7.08 Example 5 0.97 3.18 6.85 Comparative Example 1 5.94 9.45 12.36 Comparative Example 2 4.69 9.87 13.28 Comparative Example 3 5.67 8.69 11.96 Comparative Example 4 6.43 10.12 14.86

[0049] It can be seen from the above that the fabrics prepared in Examples 1 to 5 have a smaller change in color difference ΔE after long-term sun exposure and are more sun-resistant.

[0050] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A transfer printing process for highly weather-resistant polyester fiber fabric, characterized in that: The steps include: S1. Preparation of weather-resistant ink: The weather-resistant ink comprises disperse dye, ethanol, glycerin, ultraviolet absorber, nonionic wetting dispersant, anionic superdispersant, acrylic resin emulsion thickener and water; S2, preparation of transfer printing paper: printing weather-resistant ink on one side of the thermal sublimation transfer printing paper according to a set pattern using an inkjet printer to prepare the transfer printing paper; S3, transfer printing: fit one side of the transfer printing paper pattern to one side of the polyester fiber fabric surface, and use heat transfer printing equipment for hot pressing.

2. The transfer printing process for highly weather-resistant polyester fiber fabric according to claim 1, characterized in that: According to the weight ratio, the amount of the disperse dye is 4.0-6.5%, the amount of the ethanol is 5%, the amount of the glycerol is 25%, the amount of the ultraviolet absorber is 1.0%, the amount of the nonionic wetting and dispersing agent is 1.0%, the amount of the anionic hyperdispersant is 1.5%, the amount of the acrylic resin emulsion thickener is 0.1-0.5%, and the balance is water.

3. The transfer printing process for highly weather-resistant polyester fiber fabric according to claim 1, characterized in that: The disperse dye is disperse dye blue, disperse dye red, disperse dye yellow or disperse dye ink; the disperse dye ink is prepared from disperse dye blue, disperse dye red and disperse dye yellow.

4. The transfer printing process for highly weather-resistant polyester fiber fabric according to claim 3, characterized in that: The structural formula of the disperse dye blue is The structural formula of the disperse dye red is The structural formula of the disperse dye yellow is 5. The transfer printing process for highly weather-resistant polyester fiber fabric according to claim 1, characterized in that: The CAS No. of the nonionic wetting and dispersing agent is 64422-66-8, the CAS No. of the anionic superdispersant is 308061-37-2, and the CAS No. of the acrylic resin emulsion thickener is 25767-39-9.

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