阅读说明：本技术 防水透气面料制备方法及防水透气面料 (Waterproof breathable fabric and preparation method thereof ) 是由 徐传毅 于 2019-02-15 设计创作，主要内容包括：本发明提供了一种防水透气面料的制备方法,包括：制备胶体涂布液：将纳米粒子材料加入到有机溶剂中,密封加热搅拌,随后降至室温,得到胶体涂布液；纳米涂布：将胶体涂布液均匀涂布于面料本体上；和热处理：将涂布后的面料本体置于加热装置中,烘烤至胶体涂布液完全烤干,从而在面料本体上形成防水透气纳米薄膜层。本发明的防水透气面料的制备方法操作简单、成本低廉、适合大规模工业化生产。本发明还提供了一种防水透气面料。(The invention provides a preparation method of a waterproof breathable fabric, which comprises the following steps: preparing a colloid coating liquid: adding the nano particle material into an organic solvent, sealing, heating and stirring, and then cooling to room temperature to obtain a colloid coating liquid; nano coating: uniformly coating the colloid coating liquid on the fabric body; and heat treatment: and (3) placing the coated fabric body in a heating device, and baking until the colloid coating liquid is completely baked, thereby forming the waterproof breathable nano film layer on the fabric body. The preparation method of the waterproof breathable fabric is simple to operate, low in cost and suitable for large-scale industrial production. The invention also provides a waterproof breathable fabric.)

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

preparing a colloid coating liquid: adding the nano particle material into an organic solvent, sealing, heating and stirring, and then cooling to room temperature to obtain a colloid coating liquid;

nano coating: uniformly coating the colloid coating liquid on the fabric body;

and (3) heat treatment: and (3) placing the coated fabric body in a heating device, and baking until the colloid coating liquid is completely baked, thereby forming the waterproof breathable nano film layer on the fabric body.

2. The production method according to claim 1, characterized in that, in the step of preparing a colloid coating liquid, the nanoparticle material is PDMS, PVDF, or PTFE, preferably PDMS; the organic solvent is n-hexane.

3. The method according to claim 1, wherein in the step of preparing a colloid coating liquid, the nanoparticle material is added to the organic solvent in such a manner that a mass ratio of the nanoparticle material is 20% to 37.5% (preferably 25%).

4. The preparation method according to claim 3, characterized in that, in the step of preparing a colloid coating liquid, after the nanoparticle material is added to the organic solvent, it is uniformly stirred at a rotation speed of 100rpm to 150rpm at a temperature of 50 ℃ to 60 ℃ for 20 minutes to 40 minutes.

5. The method according to claim 4, wherein hydrochloric acid is added as a stabilizer after the nanoparticle material is added to the organic solvent in the step of preparing the colloid coating liquid, and the hydrochloric acid has a concentration of 35% to 50%.

6. The method according to claim 5, wherein the added hydrochloric acid is 1 to 5% by mass.

7. The method according to claim 1, wherein the step of preparing a colloid coating liquid results in a colloid coating liquid having a particle diameter of 150nm to 1.5 μm (preferably 900 nm).

8. The method according to claim 1, wherein the nano-coating step is carried out by knife coating, gravure coating, slot extrusion coating, gravure coating, or reverse contact coating.

9. The production method according to claim 8, wherein in the nano-coating step, the coating amount of the colloid coating liquid on the fabric body is 1g/m in terms of solid content²To 10g/m²。

10. The method for preparing the fabric according to the claim 1, wherein before the nano coating step, the fabric body is subjected to surface smoothing treatment.

11. The production method according to claim 10, wherein the surface smoothing treatment is a sizing treatment.

12. The production method according to claim 1, wherein in the heat treatment step, the temperature is raised to 130 ℃ to 160 ℃ at a rate of 5 ℃/min to 20 ℃/min; the baking time is 30 minutes to 2 hours.

13. The preparation method according to any one of claims 1 to 12, further comprising coating, coating or sticking a protective layer on the waterproof breathable nano film layer after the heat treatment step.

14. A waterproof and breathable fabric prepared according to the preparation method of any one of claims 1 to 13, wherein the waterproof and breathable fabric comprises: a fabric body and a waterproof and breathable nano-film layer arranged on the fabric body, wherein,

the waterproof breathable nano film layer is formed by coating colloid coating liquid on the fabric body.

15. The waterproof breathable fabric according to claim 14, wherein the fabric body is any one of a cotton fabric, a linen fabric, a silk fabric, a woolen fabric, a leather fabric, a chemical fiber fabric, a blended fabric and a modal cotton fabric.

16. The waterproof breathable fabric according to claim 14 or 15, further comprising a protective layer disposed on the waterproof breathable nano film layer.

17. The waterproof breathable fabric according to claim 16, wherein the protective layer is coated, coated or stuck on the waterproof breathable nano film layer; preferably, the protective layer is a ceramic powder protective layer.

Technical Field

The invention relates to the technical field of fabrics, in particular to a waterproof and breathable fabric and a preparation method thereof.

Background

Polyester fibers, protein fibers, and the like are widely used in textile fabrics due to their advantages of soft texture, protection, warmth retention, and the like, for example: curtains, wall coverings, outdoor sportswear and the like. In order to improve the application value of the fabrics, scientific research personnel research the waterproof and air-permeable performances of the fabrics, and find various problems such as unsatisfactory waterproof and air-permeable performances, harm to the environment and human bodies, complex preparation process, difficulty in realizing industrialization and the like in the research process, so that the application of the fabrics is severely restricted. Therefore, a simple waterproof breathable fabric preparation process capable of realizing large-scale production is lacked in the prior art.

Disclosure of Invention

The invention aims to provide a preparation method of a waterproof breathable fabric and the waterproof breathable fabric aiming at the defects of the prior art, and aims to solve the problems that the waterproof breathable fabric is not ideal in waterproof and breathable performance, harmful to the environment and human bodies, complex in preparation process, difficult to realize industrialization and the like in the prior art.

In one aspect, the invention provides a preparation method of a waterproof breathable fabric, which comprises the following steps:

preparing a colloid coating liquid: adding the nano particle material into an organic solvent, sealing, heating and stirring, and then cooling to room temperature to obtain a colloid coating liquid;

nano coating: uniformly coating the colloid coating liquid on the fabric body;

and (3) heat treatment: and (3) placing the coated fabric body in a heating device, and baking until the colloid coating liquid is completely baked, thereby forming the waterproof breathable nano film layer on the fabric body.

In another aspect, the present invention provides a waterproof and breathable fabric, comprising: the fabric comprises a fabric body and a waterproof breathable nano-film layer arranged on the fabric body, wherein the waterproof breathable nano-film layer is formed by coating colloid coating liquid on the fabric body.

The technical scheme of the invention has the following beneficial effects:

(1) the invention adopts the sol-gel method to prepare the colloid coating liquid, does not use a large amount of organic solvent in the preparation process, has no halogen, low toxicity and no harm to the environment of chemical raw materials, has low reaction temperature in the preparation process, simple operation method and low requirements on equipment and environment control.

(2) The waterproof breathable fabric has high limited oxygen index, can endow the fabric with good hydrophobic and breathable functions, has excellent wear resistance and washing resistance, and overcomes the defects of poor adhesion and washing resistance of nano particles by a sol-gel method.

(3) The waterproof breathable nano film layer is prepared by adopting a coating mode, the manufacturing process is simple, the cost is low, and the waterproof breathable nano film layer is suitable for large-scale industrial production.

Drawings

FIG. 1 is a flow chart of the preparation process of the present invention.

Fig. 2 is a schematic structural view of a waterproof and breathable fabric according to a third embodiment of the present invention.

Fig. 3 is a schematic structural view of a waterproof and breathable fabric according to a fourth embodiment of the present invention.

Detailed Description

The present invention will be described in detail with reference to the following embodiments in order to fully understand the objects, features and effects of the invention, but the present invention is not limited thereto.

Preparation method of waterproof breathable fabric

Aiming at the problems that the performance of the existing waterproof breathable fabric is not ideal, the existing waterproof breathable fabric is harmful to the environment and human bodies, the preparation process is complex, industrialization is difficult to realize, and the like, the invention provides a preparation method of the waterproof breathable fabric, and in order to facilitate the clear understanding of the preparation method of the waterproof breathable fabric by technical personnel in the field, the preparation method of the waterproof breathable fabric is described in detail by two embodiments I and II.