阅读说明：本技术 一种耐候性塑料编织袋的生产工艺 (Production process of weather-resistant plastic woven bag ) 是由 姜日体 于 2019-09-27 设计创作，主要内容包括：本发明公开的属于塑料编织袋技术领域,具体为一种耐候性塑料编织袋的生产工艺,该耐候性塑料编织袋的生产工艺的具体步骤如下：S1：原料熔融混合；S2：通过挤出机将熔融料挤出：将熔融料加入到挤出机中,且使得熔融料挤出,熔融料加入到挤出机的速度为120-130kg/min,最终制成丝状原料；S3：编织成袋状；S4：裁剪尺寸；S5：将裁剪后的编织袋封口：将步骤S4中切割后的筒状袋体取出并对切割后的筒状袋体一端封闭,通过耐候性添加材料的使用,使得塑料编织袋的使用寿命更久,存放能力更好；塑料编织袋在加入耐候性添加材料后,其抗氧化性作用显著提高,且在阳光直射的环境下,相对现有的塑料编织袋使用寿命有显著的提高。(The invention belongs to the technical field of plastic woven bags, and particularly relates to a production process of a weather-resistant plastic woven bag, which comprises the following specific steps: s1: melting and mixing the raw materials; s2: extruding the molten mass through an extruder: adding the molten material into an extruder, extruding the molten material, and finally preparing the filamentous raw material, wherein the speed of adding the molten material into the extruder is 120-130 kg/min; s3: weaving into a bag shape; s4: cutting size; s5: sealing the cut woven bag: taking out the cut cylindrical bag body in the step S4, sealing one end of the cut cylindrical bag body, and enabling the service life of the plastic woven bag to be longer and the storage capacity to be better through the use of the weather-resistant additive material; after the weather-resistant additive material is added into the plastic woven bag, the oxidation resistance of the plastic woven bag is obviously improved, and the service life of the plastic woven bag is obviously prolonged in a direct sunlight environment compared with that of the existing plastic woven bag.)

1. A production process of a weather-resistant plastic woven bag is characterized by comprising the following steps: the production process of the weather-resistant plastic woven bag comprises the following specific steps:

s1: melting and mixing raw materials: the weather-resistant plastic woven bag is prepared from PE, PP and PP resin antioxidants, an ultraviolet absorber and a polyamine antioxidant reducing agent, wherein the PE, PP and PP resin antioxidants, the ultraviolet absorber and the polyamine antioxidant reducing agent are respectively as follows according to the mass proportion: injecting PE (30-34), PP resin antioxidant (3-5), ultraviolet absorbent (3-5) and polyamine antioxidant reducing agent (3-5) into a heating and melting furnace to melt the PE, PP and PP resin antioxidant, ultraviolet absorbent and polyamine antioxidant reducing agent, and stirring and mixing the PE, PP resin antioxidant, ultraviolet absorbent and polyamine antioxidant reducing agent by using stirring equipment to ensure that the raw materials are in a homogeneous molten state under the stirring effect to prepare a molten material;

s2: extruding the molten mass through an extruder: adding the molten material into an extruder, extruding the molten material, and finally preparing the filamentous raw material, wherein the speed of adding the molten material into the extruder is 120-130 kg/min;

s3: weaving into a bag shape: taking out the filamentous material obtained in step S2, and knitting the filamentous material into a closed tubular bag body with an open end by a knitting machine;

s4: cutting size: taking out the cylindrical bag body in the step S3, and cutting the length of the cylindrical bag body according to the use requirement to enable the cut cylindrical bag body to be used;

s5: sealing the cut woven bag: and (5) taking out the cylindrical bag body cut in the step (S4) and sealing one end of the cut cylindrical bag body to obtain a finished product.

2. The process for producing the woven plastic bag with weather resistance as claimed in claim 1, wherein: the raw materials are respectively as follows according to the mass proportion: PE30 parts, PP30 parts, PP resin antioxidant 3 parts, ultraviolet absorbent 3 parts, polyamine antioxidant reducing agent 3 parts.

3. The process for producing the woven plastic bag with weather resistance as claimed in claim 1, wherein: the raw materials are respectively as follows according to the mass proportion: PE32 parts, PP32 parts, PP resin antioxidant 4 parts, ultraviolet absorbent 4 parts and polyamine antioxidant reducing agent 4 parts.

4. The process for producing the woven plastic bag with weather resistance as claimed in claim 1, wherein: the raw materials are respectively as follows according to the mass proportion: PE34 parts, PP34 parts, PP resin antioxidant 5 parts, ultraviolet absorbent 5 parts and polyamine antioxidant reducing agent 5 parts.

5. The process for producing the woven plastic bag with weather resistance as claimed in claim 1, wherein: and in the step S2, the material cylinder of the extruder continuously heats the molten material, the molten material is extruded into a film shape by the extruder, the film material is formed by water cooling or oil cooling, the formed film material is cut into strips, and the strip-shaped film material is stretched into a filamentous raw material.

6. The process for producing the woven plastic bag with weather resistance as claimed in claim 1, wherein: the extruder in the S2 is a double-screw extruder, the machine barrel of the double-screw extruder is divided into a zone 1, a zone 2 and a zone 3, the temperature of the zone 1 is 200-220 ℃, the temperature of the zone 2 is 220-240 ℃, the temperature of the zone 3 is 240-260 ℃, the rotating speed of the double-screw extruder is 240-300 r/min, and the pressure of the molten material is 4-10 MPa.

Technical Field

The invention relates to the technical field of plastic woven bags, in particular to a production process of a weather-resistant plastic woven bag.

Background

Woven bags are also known as snakeskin bags. Is one kind of plastic bag for packing and is produced with polyethylene, polypropylene and other plastic material. The weaving density refers to the number of warp and weft yarns in a 100mm multiplied by 100mm woven fabric.

The national standard GB/T8946-1998 states that "the bag is spread out flat, two squares of 100mm x 100mm are defined at the upper and lower opposite corners of the bag, the outer edge of each square is 100mm away from the edge line of the bag, the number of warps and wefts of each square is visually observed, the average value is obtained, and the number is counted by one when the last point is less than one. "the weaving density is specified in the national standard, and meanwhile, the density tolerance is specified. The weaving density is mainly determined by the packaged product, and is determined by the user.

The unit area weight of the woven cloth is expressed by the weight of square meter, and is an important technical index of the woven cloth. The weight of the square meter is mainly determined by the density of warp and weft and the thickness of flat wires, the weight of the square meter influences the tensile strength and the load capacity of the woven cloth, and the weight of the square meter is a main link for controlling the cost of production enterprises.

The plastic woven bag is mainly used for packaging agricultural products, food and tourism, has poor weather resistance when in use, is easy to tear and has poor structural strength after long-time use, thereby influencing the use effect.

Disclosure of Invention

The invention aims to provide a production process of a weather-resistant plastic woven bag, and aims to solve the problems that the weather resistance of the plastic woven bag provided in the background technology is poor, the structural strength is easy to become poor after long-time use, the plastic woven bag is easy to tear and the use effect is influenced when the plastic woven bag is mainly used for packaging agricultural products, food and tourism.

In order to achieve the purpose, the invention provides the following technical scheme: a production process of a weather-resistant plastic woven bag comprises the following specific steps:

s1: melting and mixing raw materials: the weather-resistant plastic woven bag is prepared from PE, PP and PP resin antioxidants, an ultraviolet absorber and a polyamine antioxidant reducing agent, wherein the PE, PP and PP resin antioxidants, the ultraviolet absorber and the polyamine antioxidant reducing agent are respectively as follows according to the mass proportion: injecting PE (30-34), PP resin antioxidant (3-5), ultraviolet absorbent (3-5) and polyamine antioxidant reducing agent (3-5) into a heating and melting furnace to melt the PE, PP and PP resin antioxidant, ultraviolet absorbent and polyamine antioxidant reducing agent, and stirring and mixing the PE, PP resin antioxidant, ultraviolet absorbent and polyamine antioxidant reducing agent by using stirring equipment to ensure that the raw materials are in a homogeneous molten state under the stirring effect to prepare a molten material;

s2: extruding the molten mass through an extruder: adding the molten material into an extruder, extruding the molten material, and finally preparing the filamentous raw material, wherein the speed of adding the molten material into the extruder is 120-130 kg/min;

s3: weaving into a bag shape: taking out the filamentous material obtained in step S2, and knitting the filamentous material into a closed tubular bag body with an open end by a knitting machine;

s4: cutting size: taking out the cylindrical bag body in the step S3, and cutting the length of the cylindrical bag body according to the use requirement to enable the cut cylindrical bag body to be used;

s5: sealing the cut woven bag: and (5) taking out the cylindrical bag body cut in the step (S4) and sealing one end of the cut cylindrical bag body to obtain a finished product.

Preferably, the raw materials are respectively as follows according to the mass proportion: PE30 parts, PP30 parts, PP resin antioxidant 3 parts, ultraviolet absorbent 3 parts, polyamine antioxidant reducing agent 3 parts.

Preferably, the raw materials are respectively as follows according to the mass proportion: PE32 parts, PP32 parts, PP resin antioxidant 4 parts, ultraviolet absorbent 4 parts and polyamine antioxidant reducing agent 4 parts.

Preferably, the raw materials are respectively as follows according to the mass proportion: PE34 parts, PP34 parts, PP resin antioxidant 5 parts, ultraviolet absorbent 5 parts and polyamine antioxidant reducing agent 5 parts.

Preferably, in S2, the barrel of the extruder continuously heats the molten material, the molten material is extruded into a film shape by the extruder, and is formed into a film material by water cooling or oil cooling, and the formed film material is cut into strips, and the strip-shaped film material is stretched into a filamentous raw material.

Preferably, the extruder in S2 is a twin-screw extruder, a barrel of the twin-screw extruder is divided into a zone 1, a zone 2 and a zone 3, the temperature of the zone 1 is 200-220 ℃, the temperature of the zone 2 is 220-240 ℃, the temperature of the zone 3 is 240-260 ℃, the rotation speed of the twin-screw extruder is 240-300 r/min, and the pressure of the molten material is 4-10 MPa.

Compared with the prior art, the invention has the beneficial effects that:

1) by using the weather-resistant additive material, the service life of the plastic woven bag is longer, and the storage capacity is better;

2) after the weather-resistant additive material is added into the plastic woven bag, the oxidation resistance of the plastic woven bag is obviously improved, and the service life of the plastic woven bag is obviously prolonged in a direct sunlight environment compared with that of the existing plastic woven bag.

Drawings

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

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1, the present invention provides a technical solution: a production process of a weather-resistant plastic woven bag comprises the following specific steps:

s1: melting and mixing raw materials: the weather-resistant plastic woven bag is prepared from PE, PP and PP resin antioxidants, an ultraviolet absorber and a polyamine antioxidant reducing agent, wherein the PE, PP and PP resin antioxidants, the ultraviolet absorber and the polyamine antioxidant reducing agent are respectively as follows according to the mass proportion: injecting PE (30-34), PP resin antioxidant (3-5), ultraviolet absorbent (3-5) and polyamine antioxidant reducing agent (3-5) into a heating and melting furnace to melt the PE, PP and PP resin antioxidant, ultraviolet absorbent and polyamine antioxidant reducing agent, and stirring and mixing the PE, PP resin antioxidant, ultraviolet absorbent and polyamine antioxidant reducing agent by using stirring equipment to ensure that the raw materials are in a homogeneous molten state under the stirring effect to prepare a molten material;

s2: extruding the molten mass through an extruder: adding the molten material into an extruder, wherein the extruder is a double-screw extruder, a machine barrel of the double-screw extruder is divided into a zone 1, a zone 2 and a zone 3, the temperature of the zone 1 is 200-220 ℃, the temperature of the zone 2 is 220-240 ℃, the temperature of the zone 3 is 240-260 ℃, the rotating speed of the double-screw extruder is 240-300 revolutions/min, the pressure of the molten material is 4-10 MPa, the molten material is extruded, the adding speed of the molten material into the extruder is 120-130kg/min, a charging barrel of the extruder continuously heats the molten material, the molten material is extruded into a film shape by the extruder, the film material is formed into a film material through water cooling or oil cooling, the formed film material is cut into strips, the strip-shaped film material is stretched into a thread-shaped raw material, and finally the thread-shaped raw material is prepared;

s3: weaving into a bag shape: taking out the filamentous material obtained in step S2, and knitting the filamentous material into a closed tubular bag body with an open end by a knitting machine;

s4: cutting size: taking out the cylindrical bag body in the step S3, and cutting the length of the cylindrical bag body according to the use requirement to enable the cut cylindrical bag body to be used;

s5: sealing the cut woven bag: and (5) taking out the cylindrical bag body cut in the step (S4) and sealing one end of the cut cylindrical bag body to obtain a finished product.

The raw materials are implemented according to the following three proportioning modes according to the mass proportion:

the first method comprises the following steps: the raw materials are respectively as follows according to the mass proportion: PE30 parts, PP30 parts, PP resin antioxidant 3 parts, ultraviolet absorbent 3 parts, polyamine antioxidant reducing agent 3 parts.

And the second method comprises the following steps: the raw materials are respectively as follows according to the mass proportion: PE32 parts, PP32 parts, PP resin antioxidant 4 parts, ultraviolet absorbent 4 parts and polyamine antioxidant reducing agent 4 parts.

And the third is that: the raw materials are respectively as follows according to the mass proportion: PE34 parts, PP34 parts, PP resin antioxidant 5 parts, ultraviolet absorbent 5 parts and polyamine antioxidant reducing agent 5 parts.