阅读说明：本技术 一种pe透气膜复合面料的连续生产工艺 (Continuous production process of PE breathable film composite fabric ) 是由 袁惠新 于 2020-06-19 设计创作，主要内容包括：本发明提供一种PE透气膜复合面料的连续生产工艺,涉及PE透气膜复合面料生产技术领域。该一种PE透气膜复合面料的连续生产工艺,包括使用的原料重量百分比为44.5％-54.5％的聚乙烯；45％-55％碳酸钙：0.5％添加剂,连续生产工艺的处理工艺为；步骤1：把聚乙烯、碳酸钙和添加剂放进搅拌装置中进行充分的均匀搅拌；步骤2：然后把混合后的物料加入混炼机中进行加热、混炼塑化、融化、滤杂、切粒；步骤3：把切粒后的物料进行干燥和除湿处理；步骤4：把干燥除湿后的粒状物料进行加热融化处理。通过采用连续的生产工艺,能够保证PE透气复合面料的加工节奏比较紧凑,减少多余的包装处理步骤,减低产品的生产成本,增加企业的生产利润。(The invention provides a continuous production process of a PE breathable film composite fabric, and relates to the technical field of production of PE breathable film composite fabrics. The continuous production process of the PE breathable film composite fabric comprises the steps of using 44.5-54.5 wt% of polyethylene as a raw material; 45% -55% of calcium carbonate: 0.5 percent of additive, and the treatment process of the continuous production process comprises the following steps; step 1: putting polyethylene, calcium carbonate and additives into a stirring device for fully and uniformly stirring; step 2: then adding the mixed materials into a mixing roll for heating, mixing and plasticizing, melting, filtering impurities and granulating; and step 3: drying and dehumidifying the granulated materials; and 4, step 4: and heating and melting the dried and dehumidified granular materials. By adopting the continuous production process, the processing rhythm of the PE breathable composite fabric can be guaranteed to be compact, redundant packaging processing steps are reduced, the production cost of products is reduced, and the production profit of enterprises is increased.)

1. A continuous production process of a PE breathable film composite fabric is characterized in that the raw materials are used in percentage by weight; 44.5% -54.5% of polyethylene; 45% -55% of calcium carbonate: 0.5% of additives;

the treatment process comprising the continuous production process comprises the following steps of;

step 1: putting polyethylene, calcium carbonate and additives into a stirring device for fully and uniformly stirring;

step 2: then adding the mixed materials into a mixing roll for heating, mixing and plasticizing, melting, filtering impurities and granulating;

and step 3: drying and dehumidifying the granulated materials;

and 4, step 4: heating and melting the dried and dehumidified granular materials;

and 5: then sending the film into a die to extrude into a base film;

step 6: adhering high-elasticity fabrics to two surfaces of an extruded base film:

and 7: and then preheating and lifting and shaping the composite film.

2. The continuous production process of the PE breathable film composite fabric according to claim 1, which is characterized by comprising the following steps of: the additive comprises a lubricant, an antioxidant and a fragrance, and the weight ratio of each component is 1: 1: 0.6.

3. the continuous production process of the PE breathable film composite fabric according to claim 1, which is characterized by comprising the following steps of: the heating temperature in the step 2 is 115-125 ℃, the mixing plasticizing temperature is gradually increased from 120 ℃ to 190 ℃, the melting temperature is kept at 180-190 ℃, the impurity filtering temperature is 160-170 ℃, and the granulating temperature is 120-130 ℃.

4. The continuous production process of the PE breathable film composite fabric according to claim 1, which is characterized by comprising the following steps of: the melting holding time in the step 2 is 20-40 minutes.

5. The continuous production process of the PE breathable film composite fabric according to claim 1, which is characterized by comprising the following steps of: the heating and melting treatment temperature of the step 4 is controlled to be 170-180 ℃, and the holding time is 30-40 minutes.

6. The continuous production process of the PE breathable film composite fabric according to claim 1, which is characterized by comprising the following steps of: the temperature of the extrusion molding base die in the step 5 is 60-80 ℃.

7. The continuous production process of the PE breathable film composite fabric according to claim 1, wherein the preheating temperature in the step 7 is 40-50 ℃, and the temperature for the drawing and shaping is 35-40 ℃.

8. The continuous production process of the PE breathable film composite fabric according to claim 1, which is characterized by comprising the following steps of: the temperature for drying and dehumidifying is 60-80 ℃.

Technical Field

The invention relates to the technical field of production of PE breathable film composite fabrics, in particular to a continuous production process of a PE breathable film composite fabric.

Background

The conventional production process of PE (polyethylene) breathable film comprises the steps of heating and kneading by a mixing roll to uniformly disperse calcium carbonate in polyethylene to form breathable particles, then sending the breathable particles into an extruder, heating and plasticizing the breathable particles, extruding and molding a film through a T-shaped die, heating the film to a proper temperature, properly stretching and shaping the film, and then rolling the film to obtain the PE breathable film.

Traditional production technology adopts and divide into two steps and produce, in order to guarantee that the water content of ventilative particle satisfies the production requirement when transporting, need carry out film encapsulation, drying and multistep dehumidification step to ventilative particle, increase the manufacturing cost of PE (polyethylene) ventilated membrane surface fabric for the unit price of surface fabric increases, is unfavorable for the production demand of enterprise.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a continuous production process of a PE breathable film composite fabric, which solves the problems that the traditional production process adopts two steps to produce, in order to ensure that the water content of breathable particles meets the production requirement during transportation, the steps of film packaging, drying and multi-step dehumidification are required to be carried out on the breathable particles, the production cost of the PE (polyethylene) breathable film fabric is increased, the unit price of the fabric is increased, and the production requirement of an enterprise is not facilitated.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a continuous production process of a PE breathable film composite fabric comprises the following steps of using raw materials in percentage by weight; 44.5% -54.5% of polyethylene; 45% -55% of calcium carbonate: 0.5% of additive.

The treatment process comprising the continuous production process comprises the following steps of;

step 1: putting polyethylene, calcium carbonate and additives into a stirring device for fully and uniformly stirring;

step 2: then adding the mixed materials into a mixing roll for heating, mixing and plasticizing, melting, filtering impurities and granulating;

and step 3: drying and dehumidifying the granulated materials;

and 4, step 4: heating and melting the dried and dehumidified granular materials;

and 5: then sending the film into a die to extrude into a base film;

step 6: adhering high-elasticity fabrics to two surfaces of an extruded base film:

and 7: and then preheating and lifting and shaping the composite film.

Preferably, the additives comprise a lubricant, an antioxidant and a fragrance, and the weight ratio of each component is 1: 1: 0.6.

preferably, the heating temperature in the step 2 is 115-125 ℃, the mixing plasticizing temperature is gradually increased from 120 ℃ to 190 ℃, the melting temperature is kept at 180-190 ℃, the impurity filtering temperature is 160-170 ℃, and the granulating temperature is 120-130 ℃.

Preferably, the melting holding time in step 2 is 20 minutes to 40 minutes.

Preferably, the temperature of the heating melting treatment in the step 4 is controlled to be 170-180 ℃, and the holding time is 30-40 minutes.

Preferably, the temperature of the extrusion die in step 5 is 60 ℃ to 80 ℃.

Preferably, the preheating temperature in the step 7 is 40-50 ℃, and the temperature for pulling and shaping is 35-40 ℃.

Preferably, the temperature for drying and dehumidifying is 60-80 ℃.

(III) advantageous effects

The invention provides a continuous production process of a PE breathable film composite fabric. The method has the following beneficial effects:

1. by adopting the continuous production process, the processing rhythm of the PE breathable composite fabric can be ensured to be relatively compact, redundant packaging processing steps are reduced, the production cost of products is reduced, and the production profit of enterprises is increased.

2. According to the invention, the temperature is controlled to gradually decrease during extrusion forming, so that the toughness of the PE breathable film is increased, and the elasticity of the fabric can be increased by bonding the high-elasticity fabric on both sides of the extrusion-formed base film.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described 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 making any creative effort, shall fall within the protection scope of the present invention.