阅读说明：本技术 改善起毛面料圆网印花堵网的方法 (Method for improving printing blocking of fluffy fabric rotary screen ) 是由 王德振 葛秋芬 张战旗 齐元章 王辉 刘情保 王冰 于 2021-06-23 设计创作，主要内容包括：本发明涉及一种改善起毛面料圆网印花堵网的方法,属于纺织印染技术领域。本发明所述的改善起毛面料圆网印花堵网的方法,采用起毛→磨毛水洗→预拉幅→印花→蒸化→水洗流程对面料进行处理。预拉幅步骤工艺为：浸轧料液→烘干,料液采用丙烯酸类增稠剂。本发明设计科学合理,避免了堵网问题,改善了印花花型不全及布面白点的问题,利于工业化应用。(The invention relates to a method for improving fluffy fabric rotary screen printing screen blocking, and belongs to the technical field of textile printing and dyeing. The method for improving the circular screen printing blocking of the fluffed fabric adopts the process of fluffing → sanding washing → pre-tentering → printing → steaming → washing to process the fabric. The pre-stretching step process comprises the following steps: padding feed liquid → drying, wherein the feed liquid adopts acrylic acid thickening agent. The invention has scientific and reasonable design, avoids the problem of screen blocking, improves the problems of incomplete printing patterns and white spots on the cloth cover, and is beneficial to industrial application.)

1. A method for improving fluffy fabric rotary screen printing screen blocking is characterized by comprising the following steps: processing the fabric by adopting a process of raising → sanding and washing → pre-tentering → printing → steaming → washing;

the pre-stretching step process comprises the following steps: padding feed liquid → drying, wherein the feed liquid adopts acrylic acid thickening agent.

2. The method for improving raised fabric rotary screen printing blocking according to claim 1, characterized in that: the acrylic thickener is DIAMONTEX HD-U.

3. The method for improving raised fabric rotary screen printing blocking according to claim 1, characterized in that: the concentration of the feed liquid is 30-80 g/L.

4. The method for improving raised fabric rotary screen printing blocking according to claim 1, characterized in that: in the drying process, the drying temperature is 110-130 ℃ and the drying time is 20-40 s.

5. The method for improving raised fabric rotary screen printing blocking according to claim 1, characterized in that: the printing step process is to print large-area color blocks by using two circular screens, wherein the first circular screen is a solid color block, and the second circular screen is designed by adopting 50-70% gray level.

Technical Field

The invention relates to a method for improving fluffy fabric rotary screen printing screen blocking, and belongs to the technical field of textile printing and dyeing.

Background

The fluffy fabric is soft in hand feeling due to soft hairiness, high in wearing comfort level and good in heat retention, and is particularly widely applied to the field of autumn and winter clothes. However, the processing of the printed fabric has great difficulty for the following reasons: if the fuzzing finishing is carried out after the printing, the printing is surface coloring, and internal hairiness is hooked out, so that the problems of whitish cloth cover and fuzzy pattern can be caused; if the printing processing is carried out after fluffing, the fluffs are easy to fall off and adhere to a circular screen, so that the problem of screen blocking is caused, the printing pattern is incomplete, white spots are particularly generated on large-area color blocks, and the attractiveness of the cloth cover is seriously influenced.

Disclosure of Invention

The invention aims to provide a method for improving fluffy fabric rotary screen printing blocking, which is scientific and reasonable in design, avoids the blocking problem, improves the problems of incomplete printing pattern and white spots on the cloth cover, and is beneficial to industrial application.

The method for improving the circular screen printing blocking of the fluffed fabric adopts the process of fluffing → sanding washing → pre-tentering → printing → steaming → washing to process the fabric.

The pre-stretching step process comprises the following steps: padding feed liquid → drying, wherein the feed liquid adopts acrylic acid thickening agent.

Preferably, the acrylic thickener is DIAMONTEX HD-U.

Preferably, the concentration of the feed liquid is 30-80 g/L.

Preferably, the drying temperature in the drying process is 110-130 ℃ and the time is 20-40 s.

The printing step process is to print large-area color blocks by using two circular screens, wherein the first circular screen is a solid color block, and the second circular screen is designed by adopting 50-70% gray level.

The functions of the above process flows are respectively as follows:

fluffing: endowing the surface of the fabric with uniform and dense hairiness.

Sanding and washing: and (4) washing floating hair after fluffing to prevent the subsequent printing from blocking the screen.

Pre-tentering: padding a thickening agent to adhere hairiness; adjusting the width to meet the requirements of finished products, and avoiding pattern size difference; and adjusting the weft skew to the post-washing state to prevent the pattern skew after washing.

Printing: printing the required pattern.

Washing with water: washing off the floating color, the paste and the thickening agent used for pre-stretching.

According to the process, after fluffing, part of flower hairs are washed and removed by sanding and washing; padding an acrylic thickener during pre-stentering, and adhering the flower hair to the cloth surface in advance by utilizing the characteristic of high viscosity of the acrylic thickener to prevent the flower hair from falling off during printing; and (3) printing a large-area color block by using two round screens during printing, wherein the first round screen is a real color block to ensure the integrity of the pattern, the pattern of the second round screen is 50-70% gray, and the blank of the screen after the first round screen is printed is filled.

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

(1) the acrylic thickener adopted in the invention can not only adhere the flower hair to the cloth surface in advance to prevent the flower hair from falling off during printing, but also wash the flower hair after printing and washing, and does not influence the hair feather effect and hand feeling of the cloth surface;

(2) the second rotary screen added in the printing process is a non-solid color block, and the influence on the pattern color caused by large slurry output amount can be avoided by adopting the gray design, so that the color and the pattern control are facilitated;

(3) according to the invention, by improving the printing process, the problem of white spots caused by net blocking during circular screen printing of the fluffy fabric is solved, and the difficulties of dyeing and finishing and subsequent fabric repair are greatly reduced.

Drawings

FIG. 1 is a schematic view of a full-color pattern when a first branch screen is used for printing;

FIG. 2 is a schematic view of a full-color pattern when a second screen printing is used;

FIG. 3 is a schematic view of the fabric obtained in example 1;

FIG. 4 is a schematic view of the fabric obtained in comparative example 1;

FIG. 5 is a schematic view of the resulting fabric of comparative example 2;

wherein black in an enlarged view of fig. 2 indicates a slurry permeating portion.

Detailed Description

The invention is further illustrated by the following specific examples, which, however, are not to be construed as limiting the invention thereto.

The DIAMONTEX HD-U used in the examples was from Zschimmer & Schwarz GmbH & Co.

Other raw materials are all purchased from the market except for special instructions.

Example 1

The specification of the fabric is as follows: CM30 CM30 106 76 57/58, tissue: 2/2S.

The method for improving the skewness of the fluffed fabric is adopted to treat the fluffed fabric, and comprises the following steps: raising → sanding washing → pre-tentering → printing → steaming → washing, the main process is as follows:

1) fluffing: vehicle speed: 20m/min, tension 2.5%, small cylinder rotation speed: 3.5 percent and the rotating speed of the large cylinder is 90 r/min.

2) Sanding and washing: soda ash: 10g/L, penetrant: 2g/L, degreasing agent: 10g/L, steaming temperature of 100 ℃, steaming time of 1min, and temperature of a No. 1-8 rinsing bath: 50 ℃, overflow water dosage: 0/2/1/0/0/0/1/1L/Kg.

3) Pre-tentering: DIAMONTEX HD-U: 40g/L, drying room temperature: drying at 120 ℃ for a drying time: 36 s.

4) Printing: the pattern contains a dark gray full-ground color, and the ground color is printed by using 2 round screens, wherein the first round screen is a solid color block, and the second original text is 60% gray.

The fabric processed by the process has no net blocking problem, no white spots on the full ground color, complete pattern, no difference in hand feeling and color compared with the conventional process, and can meet the standard requirements.

Example 2

The specification of the fabric is as follows: CM20 CM20 x 80 x 70 x 57/58, tissue: 2/2S.

The method for improving the skewness of the fluffed fabric is adopted to treat the fluffed fabric, and comprises the following steps: raising → sanding washing → pre-tentering → printing → steaming → washing, the main process is as follows:

1) fluffing: vehicle speed: 15m/min, 4.0% tension, small cylinder rotation speed: 5.0, the rotating speed of the large cylinder is 100 r/min.

2) Sanding and washing: soda ash: 10g/L, penetrant: 2g/L, degreasing agent: 10g/L, steaming temperature of 100 ℃, steaming time of 1min, and temperature of a No. 1-8 rinsing bath: 50 ℃, overflow water dosage: 0/2/1/0/2/0/1/1L/Kg.

3) Pre-tentering: DIAMONTEX HD-U: 70g/L, drying room temperature: and (3) drying at 130 ℃ for: for 30 s.

4) Printing: the pattern contained dark green large leaves, and the leaf portions were printed using 2 cylinders, where the first cylinder was a solid block and the second cylinder was 65% grey.

The fabric processed by the process has no net blocking problem, no white spots on the full ground color, complete pattern, no difference in hand feeling and color compared with the conventional process, and can meet the standard requirements.

Example 3

The specification of the fabric is as follows: CM32 CM32 84 70 57/58, tissue: 2/2Z.

The method for improving the skewness of the fluffed fabric is adopted to treat the fluffed fabric, and comprises the following steps: raising → sanding washing → pre-tentering → printing → steaming → washing, the main process is as follows:

1) fluffing: vehicle speed: 20m/min, 3.0% tension, small cylinder rotation speed: 3.8 percent and the rotating speed of the large cylinder is 90 r/min.

2) Sanding and washing: soda ash: 10g/L, penetrant: 2g/L, degreasing agent: 10g/L, steaming temperature of 100 ℃, steaming time of 1min, and temperature of a No. 1-8 rinsing bath: 50 ℃, overflow water dosage: 0/2/1/0/2/0/1/1L/Kg.

3) Pre-tentering: DIAMONTEX HD-U: 60g/L, drying room temperature: drying at 120 ℃ for a drying time: 28 s.

4) Printing: the pattern contains a yellow full-ground color, and the ground color is printed by using 2 round screens, wherein the first round screen is a solid color block, and the second original text is 55% gray.

The fabric processed by the process has no net blocking problem, no white spots on the full ground color, complete pattern, no difference in hand feeling and color compared with the conventional process, and can meet the standard requirements.

Comparative example 1

The other steps are the same as example 1, except that:

pre-stretching: DIAMON-TEX HD-U: 40g/L, drying room temperature: drying at 120 ℃ for a drying time: and 36s, adjusting the skewness of the weft.

Printing: only 1 solid patch net was used to print the undertone.

Comparative example 2

The other steps are the same as example 1, except that:

pre-stretching: water-only, drying room temperature: drying at 120 ℃ for a drying time: and 36s, adjusting the skewness of the weft.

Printing: the pattern contains a dark gray full-ground color, and the ground color is printed by using 2 round screens, wherein the first round screen is a solid color block, and the second original text is 60% gray.

As can be seen from the attached drawings 1-3, the white spots of the cloth cover obtained in the comparative example 1 are more, the cloth cover obtained in the comparative example 2 still has a few white spots, and the cloth cover of the printed fabric in the embodiment 1 has uniform color and no white spot problem.

Of course, the foregoing is only a preferred embodiment of the invention and should not be taken as limiting the scope of the embodiments of the invention. The present invention is not limited to the above examples, and equivalent changes and modifications made by those skilled in the art within the spirit and scope of the present invention should be construed as being included in the scope of the present invention.