阅读说明：本技术 防水面料的制备方法 (Preparation method of waterproof fabric ) 是由 张海斌 张于蓝 李王英 于 2019-09-29 设计创作，主要内容包括：本发明提供了一种防水面料的制备方法,属于纺织技术领域。它解决了现有技术存在着稳定性差的问题。本防水面料的制备方法包括以下步骤：A、备料：将需要进行防水处理的基布有序堆放在存料处,同时将PVC颗粒原料加热至熔融状态；B、清洗：将基布放入清水中进行清洗,去除基布上的灰尘或其它杂质,清洗后将基布脱水干燥；C、一次涂覆：将清洗后的基布放置在输送平台上,输送平台上部连接有能转动滚筒一,滚筒一侧部具有若干贯穿的通孔,上述熔融的PVC原料位于滚筒一内,滚筒一匀速转动过程中通过其上的通孔使PVC原料有序的位于基布外侧；D、二次涂覆；E、热辊。本防水面料的制备方法稳定性高。(The invention provides a preparation method of a waterproof fabric, and belongs to the technical field of textiles. It has solved prior art and has had the poor problem of stability. The preparation method of the waterproof fabric comprises the following steps: A. preparing materials: orderly stacking base cloth to be subjected to waterproof treatment at a material storage position, and simultaneously heating a PVC granular raw material to a molten state; B. cleaning: putting the base cloth into clean water for cleaning, removing dust or other impurities on the base cloth, and dehydrating and drying the base cloth after cleaning; C. primary coating: placing the cleaned base cloth on a conveying platform, wherein the upper part of the conveying platform is connected with a first rotatable roller, a plurality of through holes are formed in the side part of the first roller, the molten PVC raw material is positioned in the first roller, and the PVC raw material is orderly positioned outside the base cloth through the through holes in the first roller in the uniform-speed rotation process; D. secondary coating; E. a hot roll. The preparation method of the waterproof fabric is high in stability.)

1. The preparation method of the waterproof fabric is characterized by comprising the following steps of:

A. preparing materials: orderly stacking base cloth to be subjected to waterproof treatment at a material storage position, and simultaneously heating a PVC granular raw material to a molten state;

B. cleaning: putting the base cloth into clean water for cleaning, removing dust or other impurities on the base cloth, and dehydrating and drying the base cloth after cleaning;

C. primary coating: placing the cleaned base cloth on a conveying platform, wherein the upper part of the conveying platform is connected with a first rotatable roller, a plurality of through holes are formed in the side part of the first roller, the molten PVC raw material is positioned in the first roller, and the PVC raw material is orderly positioned outside the base cloth through the through holes in the first roller in the uniform-speed rotation process;

D. secondary coating: scraping the PVC raw material on the base cloth to be flat by adopting a scraper;

E. hot rolling: the conveying platform is also connected with a second rotary drum which can rotate, a heating medium with the temperature of 60-80 ℃ is arranged in the second rotary drum, the second rotary drum is abutted against the conveying platform, and the primary coated base cloth passes through the conveying platform at a constant speed.

2. The preparation method of the waterproof fabric according to claim 1, wherein the number of the through holes on the roller in the step C is several, and the through holes uniformly distributed along the axial direction of the roller form a glue outlet unit.

3. The preparation method of the waterproof fabric according to claim 2, wherein the roller is provided with a plurality of glue discharging units which are uniformly distributed on the outer side of the roller in the circumferential direction.

4. The method for preparing a waterproof fabric according to claim 3, wherein the distance between the lower end of the scraper and the base fabric in the step D is 0.3 to 0.5 mm.

5. The method for preparing the waterproof fabric according to claim 4, wherein the scraping plate in the step D is connected with a linear module, and the linear module is fixedly connected to a conveying platform.

6. The method for preparing the waterproof fabric according to claim 5, wherein the heating medium in the second roller in the step E is water.

7. The method for preparing the waterproof fabric according to claim 5, wherein the heating medium in the second roller in the step E is oil.

Technical Field

The invention belongs to the technical field of textiles, and relates to a preparation method of a waterproof fabric.

Background

The waterproof fabric is prepared by coating a PVC coating on the surface layer of a base fabric, and the existing preparation method is to directly coat a PVC raw material on the base fabric.

Therefore, the PVC layer is not uniform, the surface of the fabric is uneven, and the quality of the prepared waterproof fabric is poor.

Disclosure of Invention

The invention aims to provide a preparation method of waterproof fabric with high stability and good processing quality aiming at the problems in the prior art.

The purpose of the invention can be realized by the following technical scheme:

the preparation method of the waterproof fabric is characterized by comprising the following steps of:

A. preparing materials: orderly stacking base cloth to be subjected to waterproof treatment at a material storage position, and simultaneously heating a PVC granular raw material to a molten state;

B. cleaning: putting the base cloth into clean water for cleaning, removing dust or other impurities on the base cloth, and dehydrating and drying the base cloth after cleaning;

C. primary coating: placing the cleaned base cloth on a conveying platform, wherein the upper part of the conveying platform is connected with a first rotatable roller, a plurality of through holes are formed in the side part of the first roller, the molten PVC raw material is positioned in the first roller, and the PVC raw material is orderly positioned outside the base cloth through the through holes in the first roller in the uniform-speed rotation process;

D. secondary coating: scraping the PVC raw material on the base cloth to be flat by adopting a scraper;

E. hot rolling: the conveying platform is also connected with a second rotary drum which can rotate, a heating medium with the temperature of 60-80 ℃ is arranged in the second rotary drum, the second rotary drum is abutted against the conveying platform, and the primary coated base cloth passes through the conveying platform at a constant speed.

The preparation method creatively adopts two-side coating, namely: primary coating and secondary coating. The PVC coating on the surface of the base cloth can be uniform after coating on the two sides.

Simultaneously, the surface uniformity of the PVC coating can be further improved in the hot roller process, and the PVC coating can be leveled and repaired due to the fact that the second roller has proper temperature. Finally, the PVC coating on the base cloth is ensured to be even and flat.

In the preparation method of the waterproof fabric, in the step C, the number of the through holes on the roller is a plurality, and the through holes uniformly distributed along the axial direction of the roller form a glue outlet unit.

In the preparation method of the waterproof fabric, the roller is provided with the plurality of glue discharging units which are uniformly distributed on the outer side of the roller in the circumferential direction.

The arrangement of the glue discharging units can stably coat glue on the base cloth.

In the preparation method of the waterproof fabric, the distance between the lower end of the scraper and the base cloth in the step D is 0.3-0.5 mm.

This construction enables the thickness of the PVC coating to be maintained between 0.3 and 0.5 mm.

In the preparation method of the waterproof fabric, in the step D, the scraper is connected with the linear module, and the linear module is fixedly connected to the conveying platform.

The scraper can be driven to stably translate through the linear module.

In the above method for preparing a waterproof fabric, the heating medium in the second roller in the step E is water.

In the above method for preparing the waterproof fabric, the heating medium in the second roller in the step E is oil.

Compared with the prior art, the preparation method of the waterproof fabric has the advantages that the PVC surface layer on the surface of the base fabric is ensured to be even and flat finally due to the fact that hot pressing is carried out through the second roller after coating on the two sides, and the quality of the prepared product is high.

Detailed Description