CN110625969A - Production process of weather-resistant plastic woven bag - Google Patents
Production process of weather-resistant plastic woven bag Download PDFInfo
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- CN110625969A CN110625969A CN201910924415.0A CN201910924415A CN110625969A CN 110625969 A CN110625969 A CN 110625969A CN 201910924415 A CN201910924415 A CN 201910924415A CN 110625969 A CN110625969 A CN 110625969A
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- extruder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D22/00—Producing hollow articles
- B29D22/003—Containers for packaging, storing or transporting, e.g. bottles, jars, cans, barrels, tanks
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Woven Fabrics (AREA)
- Artificial Filaments (AREA)
Abstract
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.
Description
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.
The first embodiment is as follows:
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: PE30kg, PP30kg, PP resin antioxidant 3kg, ultraviolet absorbent 3kg and polyamine antioxidant reducing agent 3kg, injecting the PE, PP resin antioxidant, ultraviolet absorbent and polyamine antioxidant reducing agent into a heating melting furnace to heat and melt the PE, 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 adopting stirring equipment to ensure that the raw materials are in a homogeneous molten state under the stirring action to prepare molten materials;
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.
Example two:
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: PE32kg, PP32kg, PP resin antioxidant 4kg, ultraviolet absorbent 4kg and polyamine antioxidant reducing agent 4kg, injecting the PE, PP resin antioxidant, ultraviolet absorbent and polyamine antioxidant reducing agent into a heating melting furnace to heat and melt the PE, 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 adopting stirring equipment to ensure that the raw materials are in a homogeneous molten state under the stirring action to prepare molten materials;
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.
Example three:
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: PE34kg, PP34kg, PP resin antioxidant 5kg, ultraviolet absorbent 5kg and polyamine antioxidant reducing agent 5kg, injecting the PE, PP resin antioxidant, ultraviolet absorbent and polyamine antioxidant reducing agent into a heating melting furnace to heat and melt the PE, 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 adopting stirring equipment to ensure that the raw materials are in a homogeneous molten state under the stirring action 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 finished products supported by the three embodiments are respectively 10, and 10 finished products prepared by each embodiment are filled with equal amount of the same materials and are placed in the sun for three months. And a common plastic woven bag is selected to be placed in the bag, the same amount of materials are filled in the bag, and the bag is placed in the sun for storage for three months.
After three months, the surfaces of finished products prepared by the three embodiments in the scheme slightly lose luster, and the initial state of the structural strength is reduced by 10 percent;
after three months, the surface of the common plastic woven bag seriously loses luster and peels, and the initial state of the structural strength is reduced by 40 percent.
While there have been shown and described the fundamental principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
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.
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| CN201910924415.0A CN110625969A (en) | 2019-09-27 | 2019-09-27 | Production process of weather-resistant plastic woven bag |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112157957A (en) * | 2020-09-29 | 2021-01-01 | 桐庐伟炜塑料制品有限公司 | Multilayer composite plastic bag forming process |
| CN113817244A (en) * | 2021-10-27 | 2021-12-21 | 浙江宏南精密工业有限公司 | Processing technology of antioxidant plastic product |
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| CN102731914A (en) * | 2012-07-23 | 2012-10-17 | 安徽安远塑胶股份有限公司 | Novel composition used for preparing anti-aging plastic woven products |
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| CN112157957A (en) * | 2020-09-29 | 2021-01-01 | 桐庐伟炜塑料制品有限公司 | Multilayer composite plastic bag forming process |
| CN113817244A (en) * | 2021-10-27 | 2021-12-21 | 浙江宏南精密工业有限公司 | Processing technology of antioxidant plastic product |
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Application publication date: 20191231 |