CN112455003A - Manufacturing process of paper-plastic composite bag - Google Patents
Manufacturing process of paper-plastic composite bag Download PDFInfo
- Publication number
- CN112455003A CN112455003A CN202011291910.1A CN202011291910A CN112455003A CN 112455003 A CN112455003 A CN 112455003A CN 202011291910 A CN202011291910 A CN 202011291910A CN 112455003 A CN112455003 A CN 112455003A
- Authority
- CN
- China
- Prior art keywords
- base material
- proportion
- paper
- content
- plastic composite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920003023 plastic Polymers 0.000 title claims abstract description 37
- 239000004033 plastic Substances 0.000 title claims abstract description 37
- 239000002131 composite material Substances 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- -1 polypropylene Polymers 0.000 claims abstract description 55
- 239000000463 material Substances 0.000 claims abstract description 53
- 239000002245 particle Substances 0.000 claims abstract description 52
- 239000004698 Polyethylene Substances 0.000 claims abstract description 28
- 239000004743 Polypropylene Substances 0.000 claims abstract description 28
- 229920000573 polyethylene Polymers 0.000 claims abstract description 28
- 229920001155 polypropylene Polymers 0.000 claims abstract description 28
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000003242 anti bacterial agent Substances 0.000 claims abstract description 26
- 229910001431 copper ion Inorganic materials 0.000 claims abstract description 26
- 239000010410 layer Substances 0.000 claims abstract description 25
- 239000002344 surface layer Substances 0.000 claims abstract description 23
- 238000003756 stirring Methods 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 239000002655 kraft paper Substances 0.000 claims abstract description 7
- 238000005303 weighing Methods 0.000 claims abstract description 4
- 238000005520 cutting process Methods 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 6
- 239000012943 hotmelt Substances 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/26—Folding sheets, blanks or webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/74—Auxiliary operations
- B31B70/76—Moistening; Drying; Cooling; Heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2170/00—Construction of flexible containers
- B31B2170/20—Construction of flexible containers having multi-layered walls, e.g. laminated or lined
Landscapes
- Bag Frames (AREA)
Abstract
The invention discloses a manufacturing process of a paper-plastic composite bag, which comprises the following operation steps: s1: preparing raw materials, wherein the raw materials comprise a surface layer and a base layer, the surface layer is made of kraft paper, the base layer is made of polypropylene particles, polyethylene particles and a nano copper ion antibacterial agent, the content of the polypropylene particles is 40-50%, the content of the polyethylene particles is 40-50%, and the content of the nano copper ion antibacterial agent is 5-10%; s2: weighing the base material in proportion, putting the base material into a high-temperature stirring tank, and stirring the base material for 2 hours at the high temperature of 300 ℃; s3: and taking out the uniformly mixed base material, putting the base material into a normal-temperature stirring tank, and stirring the base material to cool the base material to 60 ℃. According to the manufacturing process of the paper-plastic composite bag, the base material is repeatedly kneaded, so that the base material is uniformly mixed and has high toughness.
Description
Technical Field
The invention relates to the field of paper-plastic composite bags, in particular to a manufacturing process of a paper-plastic composite bag.
Background
The paper-plastic composite bag is made up by using plastic and kraft paper through the processes of compounding, generally the plastic layer is made up by using polypropylene (PP) or Polyethylene (PE) as base material and using flat-filament woven cloth, and the kraft paper is made up by using refined composite kraft paper, and has the characteristics of high strength, good water-proofing property and beautiful appearance, so that it is one of the most popular packaging materials at present, and can be extensively used in the fields of plastic raw material, cement, feed, chemical industry and fertilizer, etc. However, the plastic layer has a simple structure, and is easily broken due to external force factors such as impact and gravity when the plastic layer is thermally fused outside the woven fabric.
Disclosure of Invention
The invention mainly aims to provide a process for manufacturing a paper-plastic composite bag, which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
a manufacturing process of a paper-plastic composite bag comprises the following operation steps:
s1: preparing raw materials, wherein the raw materials comprise a surface layer and a base layer, the surface layer is made of kraft paper, the base layer is made of polypropylene particles, polyethylene particles and a nano copper ion antibacterial agent, the content of the polypropylene particles is 40-50%, the content of the polyethylene particles is 40-50%, and the content of the nano copper ion antibacterial agent is 5-10%;
s2: weighing the base material in proportion, putting the base material into a high-temperature stirring tank, and stirring the base material for 2 hours at the high temperature of 300 ℃;
s3: taking out the uniformly mixed base material, putting the base material into a normal-temperature stirring tank, and stirring the base material to cool the base material to 60 ℃;
s4: taking out the base material, placing the base material into a continuous extruder, flattening for 8-12 times, wherein the thickness of the extruded base material is 2 +/-0.5 cm;
s5: putting the base material into an extrusion molding machine to prepare a 1-2mm thin slice;
s6: cutting a base material sheet into first rectangular belts with corresponding sizes according to the size of the paper-plastic composite bag, folding the first rectangular belts in half, carrying out hot melt connection on joints at two ends to form first annular belts, and carrying out hot melt closing on an opening at one end of each first annular belt to form a bag-shaped base layer;
s7: cutting the surface layer material into second rectangular belts with corresponding sizes according to the size of the paper-plastic composite bag, folding the second rectangular belts in half, bonding the joints of the two ends by using glue to form second annular belts, and bonding one end opening of the second annular belts by using glue to form a bag-shaped surface layer;
s8: and sleeving the bag-shaped surface layer outside the bag-shaped base layer, and heating the bag-shaped base layer to melt and bond the surface layer of the bag-shaped base layer on the bag-shaped surface layer.
Preferably, the proportion of the polypropylene particles is 42%, the proportion of the polyethylene particles is 48%, and the proportion of the nano copper ion antibacterial agent is 10%.
Preferably, the proportion of the polypropylene particles is 46%, the proportion of the polyethylene particles is 45%, and the proportion of the nano copper ion antibacterial agent is 9%.
Preferably, the proportion of the polypropylene particles is 48%, the proportion of the polyethylene particles is 44%, and the proportion of the nano copper ion antibacterial agent is 8%.
Preferably, the proportion of the polypropylene particles is 45%, the proportion of the polyethylene particles is 48%, and the proportion of the nano copper ion antibacterial agent is 7%.
Preferably, the proportion of the polypropylene particles is 47%, the proportion of the polyethylene particles is 47%, and the proportion of the nano copper ion antibacterial agent is 6%.
Preferably, the proportion of the polypropylene particles is 49%, the proportion of the polyethylene particles is 46%, and the proportion of the nano copper ion antibacterial agent is 5%.
Compared with the prior art, the invention has the following beneficial effects:
according to the paper-plastic composite bag, the base material is repeatedly kneaded, so that the base material is uniformly mixed and has high toughness, the plastic base layer is prevented from being damaged by external force factors such as gravity, extrusion and the like in the use process, the service life of the paper-plastic composite bag is prolonged, the use scene of the paper-plastic composite bag is increased, and the paper-plastic composite bag is efficiently utilized.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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.
Example 1:
the invention relates to a manufacturing process of a paper-plastic composite bag, which comprises the following operation steps:
s1: preparing raw materials, wherein the raw materials comprise a surface layer and a base layer, the surface layer is made of kraft paper, the base layer is made of polypropylene particles, polyethylene particles and a nano copper ion antibacterial agent, the content of the polypropylene particles is 40-50%, the content of the polyethylene particles is 40-50%, and the content of the nano copper ion antibacterial agent is 5-10%;
s2: weighing the base material in proportion, putting the base material into a high-temperature stirring tank, and stirring the base material for 2 hours at the high temperature of 300 ℃;
s3: taking out the uniformly mixed base material, putting the base material into a normal-temperature stirring tank, and stirring the base material to cool the base material to 60 ℃;
s4: taking out the base material, placing the base material into a continuous extruder, flattening for 8-12 times, wherein the thickness of the extruded base material is 2 +/-0.5 cm;
s5: putting the base material into an extrusion molding machine to prepare a 1-2mm thin slice;
s6: cutting a base material sheet into first rectangular belts with corresponding sizes according to the size of the paper-plastic composite bag, folding the first rectangular belts in half, carrying out hot melt connection on joints at two ends to form first annular belts, and carrying out hot melt closing on an opening at one end of each first annular belt to form a bag-shaped base layer;
s7: cutting the surface layer material into second rectangular belts with corresponding sizes according to the size of the paper-plastic composite bag, folding the second rectangular belts in half, bonding the joints of the two ends by using glue to form second annular belts, and bonding one end opening of the second annular belts by using glue to form a bag-shaped surface layer;
s8: and sleeving the bag-shaped surface layer outside the bag-shaped base layer, and heating the bag-shaped base layer to melt and bond the surface layer of the bag-shaped base layer on the bag-shaped surface layer.
Example 2:
on the basis of the embodiment 1, the proportion of the polypropylene particles is 42%, the proportion of the polyethylene particles is 48%, and the proportion of the nano copper ion antibacterial agent is 10%.
Example 3:
on the basis of the embodiment 1, the proportion of the polypropylene particles is 46%, the proportion of the polyethylene particles is 45%, and the proportion of the nano copper ion antibacterial agent is 9%.
Example 4:
on the basis of the embodiment 1, the proportion of the polypropylene particles is 48%, the proportion of the polyethylene particles is 44%, and the proportion of the nano copper ion antibacterial agent is 8%.
Example 5:
on the basis of the embodiment 1, the proportion of the polypropylene particles is 45%, the proportion of the polyethylene particles is 48%, and the proportion of the nano copper ion antibacterial agent is 7%.
Example 6:
on the basis of the embodiment 1, the proportion of the polypropylene particles is 47%, the proportion of the polyethylene particles is 47%, and the proportion of the nano copper ion antibacterial agent is 6%.
Example 7:
on the basis of the embodiment 1, the proportion of the polypropylene particles is 49%, the proportion of the polyethylene particles is 46%, and the proportion of the nano copper ion antibacterial agent is 5%.
According to the invention, the base material is repeatedly kneaded, so that the base material is uniformly mixed and has stronger toughness, the plastic base layer is prevented from being damaged by external force factors such as gravity, extrusion and the like in the use process, the service life of the paper-plastic composite bag is prolonged, the use scene of the paper-plastic composite bag is increased, and the paper-plastic composite bag is efficiently utilized.
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 (7)
1. A manufacturing process of a paper-plastic composite bag is characterized by comprising the following steps: the method comprises the following operation steps:
s1: preparing raw materials, wherein the raw materials comprise a surface layer and a base layer, the surface layer is made of kraft paper, the base layer is made of polypropylene particles, polyethylene particles and a nano copper ion antibacterial agent, the content of the polypropylene particles is 40-50%, the content of the polyethylene particles is 40-50%, and the content of the nano copper ion antibacterial agent is 5-10%;
s2: weighing the base material in proportion, putting the base material into a high-temperature stirring tank, and stirring the base material for 2 hours at the high temperature of 300 ℃;
s3: taking out the uniformly mixed base material, putting the base material into a normal-temperature stirring tank, and stirring the base material to cool the base material to 60 ℃;
s4: taking out the base material, placing the base material into a continuous extruder, flattening for 8-12 times, wherein the thickness of the extruded base material is 2 +/-0.5 cm;
s5: putting the base material into an extrusion molding machine to prepare a 1-2mm thin slice;
s6: cutting a base material sheet into first rectangular belts with corresponding sizes according to the size of the paper-plastic composite bag, folding the first rectangular belts in half, carrying out hot melt connection on joints at two ends to form first annular belts, and carrying out hot melt closing on an opening at one end of each first annular belt to form a bag-shaped base layer;
s7: cutting the surface layer material into second rectangular belts with corresponding sizes according to the size of the paper-plastic composite bag, folding the second rectangular belts in half, bonding the joints of the two ends by using glue to form second annular belts, and bonding one end opening of the second annular belts by using glue to form a bag-shaped surface layer;
s8: and sleeving the bag-shaped surface layer outside the bag-shaped base layer, and heating the bag-shaped base layer to melt and bond the surface layer of the bag-shaped base layer on the bag-shaped surface layer.
2. The manufacturing process of the paper-plastic composite bag according to claim 1, characterized in that: the proportion of the polypropylene particles is 42%, the proportion of the polyethylene particles is 48%, and the proportion of the nano copper ion antibacterial agent is 10%.
3. The manufacturing process of the paper-plastic composite bag according to claim 2, characterized in that: the proportion of the polypropylene particles is 46%, the proportion of the polyethylene particles is 45%, and the proportion of the nano copper ion antibacterial agent is 9%.
4. The manufacturing process of the paper-plastic composite bag according to claim 2, characterized in that: the proportion of the polypropylene particles is 48%, the proportion of the polyethylene particles is 44%, and the proportion of the nano copper ion antibacterial agent is 8%.
5. The manufacturing process of the paper-plastic composite bag according to claim 2, characterized in that: the content of the polypropylene particles is 45%, the content of the polyethylene particles is 48%, and the content of the nano copper ion antibacterial agent is 7%.
6. The manufacturing process of the paper-plastic composite bag according to claim 2, characterized in that: the content of the polypropylene particles is 47%, the content of the polyethylene particles is 47%, and the content of the nano copper ion antibacterial agent is 6%.
7. The manufacturing process of the paper-plastic composite bag according to claim 2, characterized in that: the content of the polypropylene particles is 49%, the content of the polyethylene particles is 46%, and the content of the nano copper ion antibacterial agent is 5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011291910.1A CN112455003A (en) | 2020-11-18 | 2020-11-18 | Manufacturing process of paper-plastic composite bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011291910.1A CN112455003A (en) | 2020-11-18 | 2020-11-18 | Manufacturing process of paper-plastic composite bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112455003A true CN112455003A (en) | 2021-03-09 |
Family
ID=74837641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011291910.1A Pending CN112455003A (en) | 2020-11-18 | 2020-11-18 | Manufacturing process of paper-plastic composite bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112455003A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116622142A (en) * | 2023-05-15 | 2023-08-22 | 中国电建集团重庆工程有限公司 | Polyethylene-copper nanoparticle composite material and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040043167A1 (en) * | 2002-09-04 | 2004-03-04 | Gianni Holzem | Failure-resistant receptacle and method of manufacture |
| CN104260383A (en) * | 2014-08-20 | 2015-01-07 | 江苏斯瑞达新材料科技有限公司 | Production technology of high-toughness heat-insulation film |
| CN104859182A (en) * | 2015-06-10 | 2015-08-26 | 江苏万乐自动化装备有限公司 | Large-connecting-line paper-plastic compound bag production line |
| CN104875424A (en) * | 2015-06-03 | 2015-09-02 | 江苏万乐自动化装备有限公司 | EPS (Expandable Polystyrene) semiautomatic bagging and bottom sewing machine and sewing method thereof |
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| CN106956442A (en) * | 2017-03-30 | 2017-07-18 | 盐城宏德塑业有限公司 | A kind of production technology of plastic packaging bag |
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| JP2020147020A (en) * | 2018-09-28 | 2020-09-17 | 大日本印刷株式会社 | Barrier laminate film, and method of manufacturing barrier laminate film, and packaging material having barrier laminate film |
-
2020
- 2020-11-18 CN CN202011291910.1A patent/CN112455003A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20040043167A1 (en) * | 2002-09-04 | 2004-03-04 | Gianni Holzem | Failure-resistant receptacle and method of manufacture |
| CN104260383A (en) * | 2014-08-20 | 2015-01-07 | 江苏斯瑞达新材料科技有限公司 | Production technology of high-toughness heat-insulation film |
| CN104875424A (en) * | 2015-06-03 | 2015-09-02 | 江苏万乐自动化装备有限公司 | EPS (Expandable Polystyrene) semiautomatic bagging and bottom sewing machine and sewing method thereof |
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| JP2020147020A (en) * | 2018-09-28 | 2020-09-17 | 大日本印刷株式会社 | Barrier laminate film, and method of manufacturing barrier laminate film, and packaging material having barrier laminate film |
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Cited By (1)
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| CN116622142A (en) * | 2023-05-15 | 2023-08-22 | 中国电建集团重庆工程有限公司 | Polyethylene-copper nanoparticle composite material and preparation method and application thereof |
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Application publication date: 20210309 |
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