阅读说明：本技术 一种涤纶织物直接印花工艺 (Direct printing process for polyester fabric ) 是由 屈宇成 于 2019-11-07 设计创作，主要内容包括：本发明公开了一种涤纶织物直接印花工艺,包括步骤S1：对涤纶织物进行质量检测,并进行防静电处理；步骤S2：对涤纶织物进行前处理；步骤S3：对涤纶织物进行上浆操作；步骤S4：对涤纶织物进行水洗处理：利用水洗剂对蒸化后的涤纶织物进行水洗；步骤S5：将涤纶织物绕上挂架,制作平网网版；对所述平网进行刮涂拉浆,在涤纶织物的表面形成浆料图板；步骤S6：通过数码印花机进行涤纶织物的表面喷涂,与所述浆料图板配合而在织物的表面形成直接印花；步骤S7：将面料从挂架上卸下；对所述涤纶织物进行定型风干。其能够实现快速印花,印花效果好,柔软逼真,印花完成后色牢度高,印花的寿命长。(The invention discloses a direct printing process of polyester fabric, which comprises the following steps of S1: carrying out quality detection on the polyester fabric, and carrying out anti-static treatment; step S2: pretreating the polyester fabric; step S3: sizing the polyester fabric; step S4: carrying out water washing treatment on the polyester fabric: washing the steamed polyester fabric with a washing agent; step S5: winding the polyester fabric on a hanging rack to manufacture a flat screen printing plate; blade coating and pulp drawing are carried out on the flat net, and a pulp drawing board is formed on the surface of the polyester fabric; step S6: spraying the surface of the polyester fabric through a digital printing machine, and forming direct printing on the surface of the fabric by matching with the slurry drawing board; step S7: unloading the fabric from the hanging rack; and shaping and air-drying the polyester fabric. It can realize quick stamp, and the stamp is effectual, and is soft lifelike, and the colour fastness is high after the stamp is accomplished, and the life-span of stamp is long.)

1. A direct printing process of polyester fabrics is characterized by comprising the following steps:

step S1: carrying out quality detection on the polyester fabric, and carrying out anti-static treatment;

step S2: pretreating the polyester fabric: carrying out hot-pressing presetting on the white blank of the polyester fabric, and preparing printing paste;

step S3: sizing the polyester fabric: mixing pigment and printing paste, printing and sizing the polyester fabric, putting the fabric into a non-continuous steaming closed steamer for steaming, leveling and shaping;

step S4: carrying out water washing treatment on the polyester fabric: washing the steamed polyester fabric with a washing agent;

step S5: winding the polyester fabric on a hanging rack, and manufacturing a flat screen: selecting 230-and 300-mesh gauze by tracing according to the specific pattern to manufacture a flat net; blade coating and pulp drawing are carried out on the flat net, and a pulp drawing board is formed on the surface of the polyester fabric;

step S6: spraying the surface of the polyester fabric through a digital printing machine, and forming direct printing on the surface of the fabric by matching with the slurry drawing board;

step S7: unloading the fabric from the hanging rack; and shaping and air-drying the polyester fabric.

2. The direct printing process of the polyester fabric as claimed in claim 1, wherein the printing paste in the step S2 comprises, by weight, 1.6-2.9 parts of polyvinylpyrrolidone, 1.2-4.2 parts of disperse dye, 3.1-5.2 parts of cosolvent, 1.3-3.8 parts of fatty alcohol-polyoxyethylene ether, 0.5-1.8 parts of penetrating agent, 0.4-1.6 parts of thickener and 88 parts of water.

3. The direct printing process of the polyester fabric as claimed in claim 2, wherein the mass percent of the pigment in the step S3 is 1-10%, and the mass percent of the printing paste is 90-99%; when sizing operation is carried out on the polyester fabric, the temperature of the working environment is 28-32 ℃.

4. The direct printing process of the polyester fabric as claimed in claim 3, wherein in the step S4, the water washing agent comprises 2 parts by mass of soda ash, 0.5-0.8 part by mass of a softening agent, 8-12 parts by mass of a non-ionic cleaning agent, 2-8 parts by mass of a thickening agent, 4.2-8 parts by mass of silk protein powder, 3.2-8 parts by mass of a negative ion additive and 79 parts by mass of deionized water.

5. The printing process according to claim 4, wherein the water washing agent is prepared by the following steps: the preparation method comprises the steps of firstly taking a proper amount of soda ash, adding a nonionic cleaning agent and a thickening agent, then adding silk protein powder, then adding a negative ion additive, finally adding a softening agent, adding water while stirring, continuously baking the prepared mixture at the temperature of 160 ℃ for 3 minutes, and finally obtaining a finished product of the water washing agent.

6. The direct printing process of polyester fabric according to claim 5, wherein in the step S5, when the flat net is subjected to blade coating and size drawing, the time of size coating is 1.5 h-2 h, and the temperature during blade coating and size drawing is controlled at 50 ℃ to 70 ℃.

7. The direct printing process of the polyester fabric according to claim 6, wherein the air speed in the air drying process in the step S7 is 1.1-5.8 m/S.

8. The direct printing process of the polyester fabric according to claim 7, wherein the step S7 is carried out at a setting temperature of 40-80 ℃ for a drying time of 55-84S when the polyester fabric is subjected to setting and drying.

9. The direct printing process of the polyester fabric as claimed in claim 2, wherein the cosolvent comprises: sodium benzoate, sodium salicylate and p-aminobenzoic acid.

Technical Field

The invention relates to a printing process, in particular to a direct printing process of polyester fabrics.

Background

With the continuous improvement of living standard and the technological progress, people have higher and higher requirements on textile fabrics, especially polyester fabrics, and the fabrics not only have the advantages of high softness, good comfort and the like, but also have the requirements on decoration and aesthetic property to a certain extent.

At present, the existing direct printing process of polyester fabrics on the market is simpler, and screen printing methods including flat screen printing and rotary screen printing are generally adopted. Printing and dyeing are carried out after the garment is finished, and the color difference is large and the hand feeling is relatively hard; the color fastness and the stability are poor, and the printing time is long.

Therefore, a direct printing process for polyester fabrics needs to be designed, so that the rapid printing can be realized, the printing effect is good, the polyester fabrics are soft and vivid, the color fastness is high after the printing is finished, and the printing service life is long.

Disclosure of Invention

The invention aims to provide a direct printing process for polyester fabrics, which can realize 3D printing, has good printing effect and 3D vividness, is not easy to fall off after printing is finished, and has long service life.

In order to solve the technical problem, the invention provides a direct printing process of a polyester fabric, which comprises the following steps of S1: carrying out quality detection on the polyester fabric, and carrying out anti-static treatment; step S2: pretreating the polyester fabric: carrying out hot-pressing presetting on the white blank of the polyester fabric, and preparing printing paste; step S3: sizing the polyester fabric: mixing pigment and printing paste, printing and sizing the polyester fabric, putting the fabric into a non-continuous steaming closed steamer for steaming, leveling and shaping; step S4: carrying out water washing treatment on the polyester fabric: washing the steamed polyester fabric with a washing agent; step S5: winding the polyester fabric on a hanging rack, and manufacturing a flat screen: selecting 230-and 300-mesh gauze by tracing according to the specific pattern to manufacture a flat net; blade coating and pulp drawing are carried out on the flat net, and a pulp drawing board is formed on the surface of the polyester fabric; step S6: spraying the surface of the polyester fabric through a digital printing machine, and forming direct printing on the surface of the fabric by matching with the slurry drawing board; step S7: unloading the fabric from the hanging rack; and shaping and air-drying the polyester fabric.

Preferably, the printing paste in the step S2 comprises, by weight, 1.6-2.9 parts of polyvinylpyrrolidone, 1.2-4.2 parts of disperse dye, 3.1-5.2 parts of cosolvent, 1.3-3.8 parts of fatty alcohol-polyoxyethylene ether, 0.5-1.8 parts of penetrating agent, 0.4-1.6 parts of thickening agent and 88 parts of water.

Preferably, the mass percent of the pigment in the step S3 is 1-10%, and the mass percent of the printing paste is 90-99%; when sizing operation is carried out on the polyester fabric, the temperature of the working environment is 28-32 ℃.

Preferably, in the step S4, the water washing agent comprises, by mass, 2 parts of soda ash, 0.5-0.8 part of a softening agent, 8-12 parts of a nonionic cleaning agent, 2-8 parts of a thickening agent, 4.2-8 parts of silk protein powder, 3.2-8 parts of an anion additive and 79 parts of deionized water.

Preferably, the preparation process of the water washing agent is as follows: the preparation method comprises the steps of firstly taking a proper amount of soda ash, adding a nonionic cleaning agent and a thickening agent, then adding silk protein powder, then adding a negative ion additive, finally adding a softening agent, adding water while stirring, continuously baking the prepared mixture at the temperature of 160 ℃ for 3 minutes, and finally obtaining a finished product of the water washing agent.

Preferably, in the step S5, when the flat screen is subjected to blade coating and size drawing, the time for coating the size is 1.5 to 2 hours, and the temperature during blade coating and size drawing is controlled to be 50 to 70 ℃.

Preferably, the cold air temperature in the air drying in the step S4 is 8-22 ℃, and the air speed is 1.1-5.8 m/S.

Preferably, when the dacron fabric is shaped and air-dried in the step S7, the shaping temperature is 40-80 ℃, and the air-drying time is 55-84S.

Preferably, the co-solvents include: sodium benzoate, sodium salicylate and p-aminobenzoic acid.

Compared with the prior art, the invention has the beneficial effects that:

1. in the direct printing process of the polyester fabric, the polyester fabric is pre-treated, so that the polyester fabric is easier to color, and the color fastness of the colored polyester fabric is higher.

2. The water washing agent for the direct printing process of the polyester fabric disclosed by the invention uses the softening agent, so that after the polyester fabric is subjected to coloring water washing, the polyester fabric is softer and more skin-friendly, and has lower skin irritation.

3. According to the invention, the fabric after printing is dried and shaped, so that the coloring rate can be increased, the printing is not easy to fall off, and the service life of the fabric staying on the printing machine is longer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.