阅读说明：本技术 一种防晒塑料编织袋的制备工艺 (Preparation process of sun-proof plastic woven bag ) 是由 叶邦汉 于 2019-12-02 设计创作，主要内容包括：本发明涉及塑料编织袋技术领域,特别是一种防晒塑料编织袋的制备工艺,其特征在于,包括以下步骤,S101：将物料依次加入混合机中,在温度为63℃下进行混合均匀,得到混合物；S102：将混合物以55kg/min的加料速度加入到挤出机中进行挤出,然后冷却成型,即得到生产编织袋的涂覆编织布；S103：将步骤S102得到的生产编织袋的涂覆编织布放入螺杆挤出机中进行挤出,得到编织袋涂覆布的扁丝；S104：利用圆筒编织机采用平模方法将步骤S103得到的编织袋涂覆布的扁丝进行编织,然后依次经过切割、裁断和缝纫,即得到塑料编织袋。采用上述工艺后,本发明能有效防晒,编织袋不易老化,使用寿命长,拉伸力高,使得装载的物品不易产生腐败变质,不易破损。(The invention relates to the technical field of plastic woven bags, in particular to a preparation process of a sun-proof plastic woven bag, which is characterized by comprising the following steps of S101: sequentially adding the materials into a mixer, and uniformly mixing at 63 ℃ to obtain a mixture; s102: adding the mixture into an extruder at a feeding speed of 55kg/min for extrusion, and then cooling and forming to obtain the coating woven fabric for producing woven bags; s103: putting the coated woven fabric for producing the woven bag obtained in the step S102 into a screw extruder for extruding to obtain flat filaments of the woven bag coated fabric; s104: and (5) weaving the flat filaments of the woven bag coating cloth obtained in the step (S103) by using a cylinder weaving machine through a flat die method, and then sequentially cutting, cutting and sewing to obtain the plastic woven bag. By adopting the process, the invention can effectively prevent sun, the woven bag is not easy to age, the service life is long, the tensile force is high, and the loaded articles are not easy to rot and deteriorate and not easy to damage.)

1. A preparation process of a sun-proof plastic woven bag is characterized by comprising the following steps,

s101: adding 80 parts of polypropylene, 30 parts of low-density polyethylene, 25 parts of phenolic resin, 15 parts of polycarbonate, 8-15 parts of molybdenum disulfide, 25-30 parts of light stabilizer, 8-15 parts of tackifier, 12-18 parts of toughening agent and 5-12 parts of antioxidant into a mixer in sequence, and uniformly mixing at 63 ℃ to obtain a mixture;

s102: adding the mixture into an extruder at a feeding speed of 55kg/min for extrusion, and then cooling and forming to obtain the coating woven fabric for producing woven bags;

s103: preheating a preheating roller to 70 ℃, adjusting the temperature of a cooling roller to 20 ℃, and then putting the coating woven cloth for producing the woven bag obtained in the step S102 into a screw extruder to be extruded by taking the gap between a mouth film and the coating woven cloth for producing the woven bag as 120mm to obtain flat filaments of the coating woven cloth for the woven bag;

s104: and (5) weaving the flat filaments of the woven bag coating cloth obtained in the step (S103) by using a cylinder weaving machine through a flat die method, and then sequentially cutting, cutting and sewing to obtain the plastic woven bag.

2. The process for preparing the sun-proof plastic woven bag according to claim 1, wherein the light stabilizer is 2-hydroxy-4-methoxybenzophenone.

3. The process for preparing the sun-proof plastic woven bag according to claim 1, wherein the tackifier is rosin resin.

4. The process for preparing the sun-proof plastic woven bag according to claim 1, wherein the toughening agent is an ethylene-vinyl acetate copolymer.

5. The process for preparing the sun-proof plastic woven bag according to claim 1, wherein the antioxidant is tert-butylhydroquinone.

Technical Field

The invention relates to the technical field of plastic woven bags, in particular to a preparation process of a sun-proof plastic woven bag.

Background

The plastic woven bag is made into a polypropylene bag and a polyethylene bag according to main materials; the bag is divided into a bottom sewing bag and a side sewing bag according to the sewing method. The packaging material is widely applied to the articles such as fertilizers, chemical products and the like at present. The packaging material is widely applied to the articles such as fertilizers, chemical products and the like at present. The bagged objects are stacked outdoors and are difficult to be blown by wind and sun, and a plurality of bagged objects cannot be sun-cured for a long time, otherwise, the bagged objects are easy to deteriorate, so that new requirements are provided for woven bags.

The Chinese invention patent CN 109776943A discloses a process for preparing a sun-proof plastic woven bag, which comprises the following steps: sequentially adding polypropylene, linear low-density polyethylene, polystyrene, zinc oxide, titanium dioxide, a light stabilizer, a tackifier, a toughening agent and an antioxidant into a mixer to obtain a mixture; adding the mixture into an extruder for extrusion, and then cooling and forming to obtain woven cloth; placing the woven cloth for producing the woven bag into a screw extruder to be extruded with the gap from the mouth film to the woven cloth for producing the woven bag being 120mm, and obtaining flat filaments of the woven bag coated cloth; and weaving the flat filaments of the woven bag coating cloth by using a cylindrical weaving machine to obtain the plastic woven bag.

Disclosure of Invention

The invention aims to solve the problem of providing a preparation process of a sun-proof plastic woven bag.

In order to solve the technical problem, the preparation process of the sun-proof plastic woven bag comprises the following steps,

s101: adding 80 parts of polypropylene, 30 parts of low-density polyethylene, 25 parts of phenolic resin, 15 parts of polycarbonate, 8-15 parts of molybdenum disulfide, 25-30 parts of light stabilizer, 8-15 parts of tackifier, 12-18 parts of toughening agent and 5-12 parts of antioxidant into a mixer in sequence, and uniformly mixing at 63 ℃ to obtain a mixture;

s102: adding the mixture into an extruder at a feeding speed of 55kg/min for extrusion, and then cooling and forming to obtain the coating woven fabric for producing woven bags;

s103: preheating a preheating roller to 70 ℃, adjusting the temperature of a cooling roller to 20 ℃, and then putting the coating woven cloth for producing the woven bag obtained in the step S102 into a screw extruder to be extruded by taking the gap between a mouth film and the coating woven cloth for producing the woven bag as 120mm to obtain flat filaments of the coating woven cloth for the woven bag;

s104: and (5) weaving the flat filaments of the woven bag coating cloth obtained in the step (S103) by using a cylinder weaving machine through a flat die method, and then sequentially cutting, cutting and sewing to obtain the plastic woven bag.

Preferably, the light stabilizer is 2-hydroxy-4-methoxybenzophenone.

Preferably, the tackifier is rosin resin.

Preferably, the toughening agent is an ethylene-vinyl acetate copolymer.

Preferably, the antioxidant is tert-butylhydroquinone.

By adopting the process, the invention can effectively prevent sun, the woven bag is not easy to age, the service life is long, the tensile force is high, and the loaded articles are not easy to rot and deteriorate and not easy to damage.

Detailed Description

The preparation process of the sun-proof plastic woven bag comprises the following steps,

s101: adding 80 parts of polypropylene, 30 parts of low-density polyethylene, 25 parts of phenolic resin, 15 parts of polycarbonate, 8-15 parts of molybdenum disulfide, 25-30 parts of light stabilizer, 8-15 parts of tackifier, 12-18 parts of toughening agent and 5-12 parts of antioxidant into a mixer in sequence, and uniformly mixing at 63 ℃ to obtain a mixture;

s102: adding the mixture into an extruder at a feeding speed of 55kg/min for extrusion, and then cooling and forming to obtain the coating woven fabric for producing woven bags;

s103: preheating a preheating roller to 70 ℃, adjusting the temperature of a cooling roller to 20 ℃, and then putting the coating woven cloth for producing the woven bag obtained in the step S102 into a screw extruder to be extruded by taking the gap between a mouth film and the coating woven cloth for producing the woven bag as 120mm to obtain flat filaments of the coating woven cloth for the woven bag;

s104: and (5) weaving the flat filaments of the woven bag coating cloth obtained in the step (S103) by using a cylinder weaving machine through a flat die method, and then sequentially cutting, cutting and sewing to obtain the plastic woven bag.

Preferably, the light stabilizer is 2-hydroxy-4-methoxybenzophenone.

Preferably, the tackifier is rosin resin.

Preferably, the toughening agent is an ethylene-vinyl acetate copolymer.

Preferably, the antioxidant is tert-butylhydroquinone.

It should be noted that the above summary and the detailed description are intended to demonstrate the practical application of the technical solutions provided by the present invention, and should not be construed as limiting the scope of the present invention. Various modifications, equivalent substitutions, or improvements may be made by those skilled in the art within the spirit and principles of the invention. The scope of the invention is to be determined by the appended claims.