阅读说明：本技术 一种阻燃涂层布的制备方法 (Preparation method of flame-retardant coated fabric ) 是由 朱小华 许生军 朱鑫丽 奚香楠 于 2019-08-26 设计创作，主要内容包括：本发明属涂层布领域,尤其是一种阻燃涂层布的制备方法,针对现有的对于涂层布在基布上的阻燃性能相对较差,使用局限性较大,而且在涂覆过程中容易造成涂层布的涂层牢固性及稳定性较差的问题,现提出如下方案,其包括S1：将氢氧化铝利用研磨机研磨成粉末状颗粒,之后将氢氧化铝投放至浸泡桶内,接着向浸泡桶内倒入蒸馏水,形成氢氧化铝水溶液,S2：将60%涤纶与40%氨纶混纺纱织造的基布,投放至浸泡桶内,本发明通过将加固层、基布和抗划层分别与氢氧化铝的水溶液进行浸泡,接着利用压力机对加固层、基布和抗划层进行压制,以此可以有效的提高阻燃性,大大的降低使用的局限性,且可以提高涂层布的耐磨性和稳定性。(The invention belongs to the field of coated fabrics, in particular to a preparation method of flame-retardant coated fabric, which aims at solving the problems that the existing coated fabric has relatively poor flame-retardant performance on a base fabric, has large use limitation and is easy to cause poor coating firmness and stability of the coated fabric in the coating process, and provides the following scheme, which comprises the following steps: grinding aluminum hydroxide into powder particles by using a grinder, then putting the aluminum hydroxide into a soaking barrel, then pouring distilled water into the soaking barrel to form an aluminum hydroxide aqueous solution, S2: the base cloth woven by the blended yarn of 60% terylene and 40% spandex is put into a soaking barrel, the reinforcing layer, the base cloth and the scratch-resistant layer are respectively soaked in an aqueous solution of aluminum hydroxide, and then the reinforcing layer, the base cloth and the scratch-resistant layer are pressed by a press machine, so that the flame retardance can be effectively improved, the use limitation is greatly reduced, and the wear resistance and the stability of the coated cloth can be improved.)

1. The preparation method of the flame-retardant coated fabric is characterized by comprising the following steps of:

s1: grinding aluminum hydroxide into powdery particles by using a grinder, then putting the aluminum hydroxide into a soaking barrel, and then pouring distilled water into the soaking barrel to form an aluminum hydroxide aqueous solution;

s2: putting base cloth woven by 60% of terylene and 40% of spandex blended yarn into a soaking barrel, and then stirring the base cloth by using a stirrer for 50 minutes;

s3: taking out the soaked base cloth from the soaking barrel, and drying the base cloth by using a dryer;

s4: putting the dried base cloth on an ironing machine, and removing wrinkles of the base cloth by using the ironing machine;

s5: putting the reinforcing layer and the base cloth into a press machine, and setting the pressure of the press machine to be 20 KPa;

s6: the scratch-resistant layer, the base fabric, and the reinforcing layer were put into a press, and the pressure value of the press was set to 20 KPa.

2. The method as claimed in claim 1, wherein in S1, after grinding the aluminum hydroxide into powder, the aluminum hydroxide is screened by a 200-mesh screen, and the ratio of the aluminum hydroxide to the distilled water is 3: 100.

3. the method for preparing a flame-retardant coated fabric according to claim 1, wherein in S2, the rotation speed of the stirrer is 50r/min-250r/min, and the fabric is left for 5min-9min after each rotation period is finished.

4. The method as claimed in claim 1, wherein in the step S3, the temperature of the dryer is 45 ℃, the wind speed is 5m/S, and the traveling speed of the dryer is 10/min.

5. The method of claim 1, wherein in step S3, after the base fabric is dried by the dryer, the base fabric is placed on a stretching machine to perform a preliminary leveling process.

6. The method as claimed in claim 1, wherein the ironing machine set temperature is 130 degrees celsius and the ironing machine set pressure value is 30KPa in S4.

7. The method as claimed in claim 1, wherein in S5, the reinforcing layer is made of butadiene acrylonitrile rubber, butadiene acrylonitrile is put into the water solution of aluminum hydroxide in the soaking barrel, the butadiene acrylonitrile rubber is stirred by a stirrer, then the butadiene acrylonitrile rubber is dried by a dryer, the butadiene acrylonitrile rubber is put into a hot melting machine, the temperature in the hot melting machine is set to 120 ℃, then the butadiene acrylonitrile rubber after hot melting is poured into an extruder, and the butadiene acrylonitrile rubber is extruded into butadiene acrylonitrile cloth with the thickness of 3 mm.

8. The method of claim 1, wherein in the step S6, the ultra-high strength fiber is used as a base material for the scratch-resistant layer, the ultra-high strength fiber is placed in a soaking tank and fused with an aqueous solution of aluminum hydroxide, and then 1% of an anti-aging agent is poured into the soaking tank.

Technical Field

The invention relates to the technical field of coated fabrics, in particular to a preparation method of flame-retardant coated fabric.

Background

The coated fabric is mainly characterized in that a layer of material with special functions is coated on the basis of the fabric by adopting a special process, so that the fabric is added with special functions. And is also referred to as a functional coating facing. The coated fabric has three types of PVC coating, PU coating and semi-PU coating according to different coating materials, and mercerized leather, matte, anti-genuine leather, wrinkled leather and the like according to different coating processes. Classified according to functions and characteristics, the paint is color glue, PVC, silver, calendering, flame retardant, PA moisture permeable, PU moisture permeable and transparent, and the like.

Disclosure of Invention

Based on the technical problems that the flame retardant property of the coated fabric on the base fabric is relatively poor, the use limitation is large, and the coating firmness and stability of the coated fabric are poor easily in the coating process in the background technology, the invention provides a preparation method of the flame retardant coated fabric.

The invention provides a preparation method of flame-retardant coated fabric, which comprises the following steps:

s1: grinding aluminum hydroxide into powdery particles by using a grinder, then putting the aluminum hydroxide into a soaking barrel, and then pouring distilled water into the soaking barrel to form an aluminum hydroxide aqueous solution;

s2: putting base cloth woven by 60% of terylene and 40% of spandex blended yarn into a soaking barrel, and then stirring the base cloth by using a stirrer for 50 minutes;

s3: taking out the soaked base cloth from the soaking barrel, and drying the base cloth by using a dryer;

s4: putting the dried base cloth on an ironing machine, and removing wrinkles of the base cloth by using the ironing machine;

s5: putting the reinforcing layer and the base cloth into a press machine, and setting the pressure of the press machine to be 20 KPa;

s6: the scratch-resistant layer, the base fabric, and the reinforcing layer were put into a press, and the pressure value of the press was set to 20 KPa.

Preferably, in S1, after the aluminum hydroxide is ground into powder, the aluminum hydroxide is screened by a 200-mesh screen, and the ratio of the aluminum hydroxide to the distilled water is 3: 100.

preferably, in S2, the rotation speed of the stirrer is 50r/min-250r/min, and after each rotation period is finished, the stirrer is kept standing for 5min-9 min.

Preferably, in the step S3, the temperature of the dryer is 45 ℃, the wind speed is 5m/S, and the cloth moving speed of the dryer is 10/min.

Preferably, in S3, after the base fabric is dried by the dryer, the base fabric is placed on a widening machine to perform preliminary leveling on the fabric.

Preferably, in S4, the temperature set by the ironing machine is 130 degrees celsius, and the pressure set by the ironing machine is 30 KPa.

Preferably, in S5, the reinforcing layer selects nitrile rubber as a base material, nitrile is placed in the water solution of aluminum hydroxide in the soaking barrel, the nitrile rubber is stirred by a stirrer and then dried by a dryer, the nitrile rubber is put into a hot melting machine, the temperature in the hot melting machine is set to 120 ℃, the molten nitrile rubber is poured into an extruder, and the nitrile is extruded into a piece of nitrile cloth with a thickness of 3 mm.

Preferably, in S6, the anti-scratch layer is made of ultra-high strength fibers, the ultra-high strength fibers are placed in a soaking barrel and fused with an aqueous solution of aluminum hydroxide, and then 1% of an anti-aging agent is poured into the soaking barrel.

The invention has the beneficial effects that:

sequentially placing a base cloth, a reinforcing layer and an anti-scratching layer into a soaking barrel respectively to enable aqueous solution of aluminum hydroxide to be attached to the base cloth, the reinforcing layer and the anti-scratching layer, drying the base cloth by using a dryer, transversely flattening the base cloth by using a widening machine, placing the base cloth on an ironing machine, flattening the base cloth by using the ironing machine, placing butadiene rubber as a base material for the reinforcing layer, placing the butadiene rubber into the soaking barrel to be located in the aqueous solution of the aluminum hydroxide, stirring the butadiene rubber by using a stirrer, drying by using the dryer, placing the butadiene rubber into a hot melting machine, setting the temperature in the hot melting machine to be 120 ℃, pouring the butadiene rubber after hot melting into an extruder, extruding the butadiene rubber into the butadiene rubber with the thickness of 3mm, extruding the anti-scratching layer by using ultrahigh-strength fibers as the base material, placing the ultrahigh-strength fibers into the soaking barrel to be fused with the aqueous solution of the aluminum hydroxide, and then pouring 1% of anti-aging agent into the soaking barrel, and finally respectively pressing the reinforcing layer and the anti-scratch layer with the two sides of the base fabric.

According to the invention, the reinforcing layer, the base cloth and the anti-scratching layer are respectively soaked in the aqueous solution of aluminum hydroxide, and then the reinforcing layer, the base cloth and the anti-scratching layer are pressed by a press machine, so that the flame retardance can be effectively improved, the use limitation is greatly reduced, and the wear resistance and the stability of the coated cloth can be improved.

Detailed Description

The present invention will be further illustrated with reference to the following specific examples.