CN113183495A - Preparation process of biodegradable garbage bag - Google Patents
Preparation process of biodegradable garbage bag Download PDFInfo
- Publication number
- CN113183495A CN113183495A CN202110396204.1A CN202110396204A CN113183495A CN 113183495 A CN113183495 A CN 113183495A CN 202110396204 A CN202110396204 A CN 202110396204A CN 113183495 A CN113183495 A CN 113183495A
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- China
- Prior art keywords
- kraft paper
- paper
- strength
- garbage bag
- steps
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- 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.)
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- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000002655 kraft paper Substances 0.000 claims abstract description 83
- 239000000123 paper Substances 0.000 claims abstract description 32
- 238000010030 laminating Methods 0.000 claims abstract description 26
- 239000012943 hotmelt Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 18
- 239000003292 glue Substances 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- -1 polyethylene Polymers 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 229920002678 cellulose Polymers 0.000 claims description 3
- 239000001913 cellulose Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 3
- 239000004626 polylactic acid Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 description 10
- 229920003023 plastic Polymers 0.000 description 10
- 239000002994 raw material Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000004540 pour-on Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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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
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/02—Cellulose; Modified cellulose
-
- 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
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Landscapes
- 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)
- Bag Frames (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
The invention discloses a preparation process of a biodegradable garbage bag, and belongs to the technical field of garbage bags. A biodegradable garbage bag is finally prepared through the operation steps of premix preparation, high-strength kraft paper preparation, hot-melt laminating paper and the like, the biodegradability of the garbage bag can be realized, the pollution to the land and the environment is reduced, and the preparation process is green and environment-friendly.
Description
Technical Field
The invention relates to the technical field of garbage bags, in particular to a preparation process of a biodegradable garbage bag.
Background
The plastic bag is made of plastic (common plastic such as polyethylene, polypropylene, polyester, nylon and the like) as a main raw material, is an essential article in daily life of people, and is often used for containing other articles. The plastic bag has the advantages of low price, extremely light weight, large capacity and convenient storage, but is prohibited from production and use by some countries due to the defects of extremely long degradation period and difficult processing of the plastic bag. According to the trend that relevant national regulations stipulate that supermarkets limit the use of plastic bags and countries, Europe, America and the like advocate the use of environment-friendly paper bags, the plastic pollution is strictly controlled, the plastic bags are replaced by the environment-friendly paper bags, and the market prospect of white kraft paper is good.
Among the prior art, even but even the container bag of cyclic utilization, the container bag is abandoned the back, still can the pollution of land environment, and only the pollution degree is less than the plastic bag, and when the plastic bag was replaced gradually to the container bag, the quantity of container bag was rising gradually, and is more and more serious to the pollution of land environment easily, if burn the container bag then can cause the pollution to the environment.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a preparation process of a biodegradable garbage bag, which can realize the biodegradability of the garbage bag, reduce the pollution to the land and the environment and is green and environment-friendly.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A preparation process of a biodegradable garbage bag comprises the following steps:
step one, putting polylactic acid, cellulose and polyethylene into a stirring barrel, and uniformly stirring and mixing to obtain premix;
step two, placing kraft paper below an extruder, placing the premix in the step one into the extruder, extruding and pouring the premix on the kraft paper, and cooling a joint between the premix and the kraft paper after pouring is finished to obtain high-strength kraft paper;
step three, placing the high-strength kraft paper obtained in the step two on a working table, and uniformly coating the high-strength kraft paper on the surface of the high-strength kraft paper after hot melting the laminating paper by a laminating machine;
and step four, completely bonding the bonding part between the hot-melt laminating paper and the high-strength kraft paper in the step three by using bonding glue, and blowing hot air to obtain the biodegradable garbage bag.
Further, the mixing temperature in the first step is 90-100 ℃, the mixing time is 40-65min, and the rotating speed of the stirring barrel is 400-.
Further, the joint of the premix and the kraft paper in the second step is an inner layer of the kraft paper.
Further, the joint of the hot-melt laminating paper and the high-strength kraft paper in the third step is an inner layer of the high-strength kraft paper.
Furthermore, the laminating paper in the third step is subjected to hot melting and then is coated on the surface of the high-strength kraft paper, and preliminary adhesion exists between the laminating paper and the high-strength kraft paper.
Further, the kraft paper is placed below the extruder in the second step, and the high-strength kraft paper is placed on the working table top in the third step, and the edges of the kraft paper and the high-strength kraft paper are respectively subjected to fixing treatment.
Furthermore, the fixing treatment mode is respectively to carry out partial folding treatment to the both sides edge of kraft paper and high strength kraft paper, carry out the pressfitting to the folding part fixed, after the premix pour on the kraft paper with hot melt drench membrane paper coat on the high strength kraft paper after cut off the folding part.
Further, the using method of the bonding glue in the fourth step is that the bonding glue is contained in a soft dropping container, and the bonding glue is made to penetrate into a joint part between the hot-melt laminating paper and the high-strength kraft paper by extruding the soft dropping container.
Further, the temperature of the hot air blown in the fourth step is 100-130 ℃.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the scheme can realize the biodegradability of the garbage paper bag, reduce the pollution to the land and the environment and protect the environment.
(2) By adding the premix, the finished garbage paper bag not only has biodegradable performance, but also can improve the tensile strength and the tearing resistance of the garbage paper bag.
(3) The joint part of the kraft paper and the high-strength kraft paper is an inner layer, so that the operations such as character printing of the outer layer are not easily influenced.
(4) Through the arrangement of the laminating paper, the garbage bag has the characteristics of water resistance, moisture resistance and the like, and is degradable.
(5) The preparation method is simple, easy to implement, low in cost and high in production efficiency, and raw materials used for production are easy to obtain.
Drawings
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a schematic structural view of the kraft paper or high strength kraft paper of the present invention partially folded, pressed and fixed;
fig. 3 is a schematic structural view of the kraft paper or high strength kraft paper of the present invention when the folded portion is cut off.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
Referring to fig. 1-3, a process for preparing a biodegradable garbage bag comprises the following steps:
step one, putting polylactic acid, cellulose and polyethylene into a stirring barrel, and uniformly stirring and mixing to obtain premix;
step two, placing kraft paper below an extruder, placing the premix in the step one into the extruder, extruding and pouring the premix on the kraft paper, and cooling a joint between the premix and the kraft paper after pouring is finished to obtain high-strength kraft paper;
step three, placing the high-strength kraft paper obtained in the step two on a working table, and uniformly coating the high-strength kraft paper on the surface of the high-strength kraft paper after hot melting the laminating paper by a laminating machine;
and step four, completely bonding the bonding part between the hot-melt laminating paper and the high-strength kraft paper in the step three by using bonding glue, and blowing hot air to obtain the biodegradable garbage bag.
The mixing temperature in the first step is 90-100 ℃, the mixing time is 40-65min, and the rotating speed of the stirring barrel is 400-500 r/min.
In the second step, the joint part of the premix and the kraft paper is the inner layer of the kraft paper, so that the character printing of the outer layer of the garbage paper bag is not easily influenced when the garbage paper bag is used.
In the third step, the combination part of the hot-melt laminating paper and the high-strength kraft paper is the inner layer of the high-strength kraft paper, so that the outer character printing of the paper bag is not easily influenced when the garbage paper bag is used.
In the third step, the hot-melt laminating paper is coated on the surface of the high-strength kraft paper, and the hot-melt laminating paper has higher temperature, so that the hot-melt laminating paper can be preliminarily bonded when coated on the surface of the high-strength kraft paper.
And step two, when the kraft paper is placed below the extruder and the high-strength kraft paper is placed on the working table top in step three, the edges of the kraft paper and the high-strength kraft paper are respectively subjected to fixing treatment, so that the subsequent operation of the kraft paper below the extruder and the subsequent operation of the high-strength kraft paper on the working table top are not easily influenced while the kraft paper and the high-strength kraft paper are fixed.
The fixing treatment mode is that the two side edges of the kraft paper and the high-strength kraft paper are partially folded, the folded parts are pressed and fixed, when the premix is poured on the kraft paper, the folded parts are cut off after the premix is coated on the high-strength kraft paper by the hot-melt laminating paper, and the unfolded parts of the kraft paper and the high-strength kraft paper are the components of the paper bag.
The using method of the bonding glue in the fourth step is that the bonding glue is contained in a soft dropping container, and the bonding glue is permeated into a joint part between the hot-melt laminating paper and the high-strength kraft paper by extruding the soft dropping container.
The temperature of the hot air blowing in the fourth step is 100-130 ℃.
The biodegradable garbage paper bag can be biodegradable, the pollution to the land and the environment is reduced, and the environment is protected.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
Claims (9)
1. A preparation process of a biodegradable garbage bag is characterized by comprising the following steps: the method comprises the following steps:
step one, putting polylactic acid, cellulose and polyethylene into a stirring barrel, and uniformly stirring and mixing to obtain premix;
step two, placing kraft paper below an extruder, placing the premix in the step one into the extruder, extruding and pouring the premix on the kraft paper, and cooling a joint between the premix and the kraft paper after pouring is finished to obtain high-strength kraft paper;
step three, placing the high-strength kraft paper obtained in the step two on a working table, and uniformly coating the high-strength kraft paper on the surface of the high-strength kraft paper after hot melting the laminating paper by a laminating machine;
and step four, completely bonding the bonding part between the hot-melt laminating paper and the high-strength kraft paper in the step three by using bonding glue, and blowing hot air to obtain the biodegradable garbage bag.
2. The process of claim 1 for preparing a biodegradable garbage bag, wherein the process comprises the steps of: the mixing temperature in the first step is 90-100 ℃, the mixing time is 40-65min, and the rotating speed of the stirring barrel is 400-500 r/min.
3. The process of claim 1 for preparing a biodegradable garbage bag, wherein the process comprises the steps of: and in the second step, the joint part of the premix and the kraft paper is the inner layer of the kraft paper.
4. The process of claim 1 for preparing a biodegradable garbage bag, wherein the process comprises the steps of: and in the third step, the joint part of the hot-melt laminating paper and the high-strength kraft paper is the inner layer of the high-strength kraft paper.
5. The process of claim 1 for preparing a biodegradable garbage bag, wherein the process comprises the steps of: and in the third step, the laminating paper is subjected to hot melting and then is coated on the surface of the high-strength kraft paper, and preliminary adhesion is formed between the laminating paper and the high-strength kraft paper.
6. The process of claim 1 for preparing a biodegradable garbage bag, wherein the process comprises the steps of: and step two, placing the kraft paper below the extruder, and performing fixing treatment on the edges of the kraft paper and the high-strength kraft paper when the high-strength kraft paper is placed on the working table in step three.
7. A process for preparing a biodegradable garbage bag according to claim 6, which comprises the steps of: the fixing treatment mode is that the two side edges of the kraft paper and the high-strength kraft paper are partially folded, the folded parts are pressed and fixed, and the folded parts are cut off after the premix is poured on the kraft paper and the hot-melt laminating paper is coated on the high-strength kraft paper.
8. The process of claim 1 for preparing a biodegradable garbage bag, wherein the process comprises the steps of: the using method of the bonding glue in the fourth step comprises the steps of containing the bonding glue in a soft dropping container, and extruding the soft dropping container to enable the bonding glue to penetrate into a joint part between the hot-melt laminating paper and the high-strength kraft paper.
9. The process of claim 1 for preparing a biodegradable garbage bag, wherein the process comprises the steps of: the temperature of the hot air blown in the fourth step is 100-130 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110396204.1A CN113183495A (en) | 2021-04-13 | 2021-04-13 | Preparation process of biodegradable garbage bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110396204.1A CN113183495A (en) | 2021-04-13 | 2021-04-13 | Preparation process of biodegradable garbage bag |
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| Publication Number | Publication Date |
|---|---|
| CN113183495A true CN113183495A (en) | 2021-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110396204.1A Pending CN113183495A (en) | 2021-04-13 | 2021-04-13 | Preparation process of biodegradable garbage bag |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5679421A (en) * | 1995-10-30 | 1997-10-21 | Brinton, Jr.; William F. | Biodegradable bags and processes for making such biodegradable bags |
| CN104909035A (en) * | 2015-06-01 | 2015-09-16 | 铜陵方正塑业科技有限公司 | Reproducible paper-plastic compound bag and preparation method thereof |
| CN105295408A (en) * | 2015-11-24 | 2016-02-03 | 安庆盛华纸质包装有限公司 | Environment-friendly type coated paper preparation technology |
| CN209601003U (en) * | 2019-03-01 | 2019-11-08 | 上海泰尔包装材料有限公司 | Degradable paper bag |
| CN110735360A (en) * | 2019-10-09 | 2020-01-31 | 浙江超凡日用品有限公司 | Production process of degradable paper bags |
| CN110878492A (en) * | 2019-12-12 | 2020-03-13 | 安庆市三环康泰纸塑有限公司 | Degradable environment-friendly laminating paper processing technology |
| CN111335071A (en) * | 2020-03-07 | 2020-06-26 | 济南文海包装材料有限公司 | Processing technology of laminating kraft paper |
| CN112537162A (en) * | 2020-12-05 | 2021-03-23 | 石月(天津)云科技有限公司 | Noctilucent silver paste silk decorative material and preparation process and preparation system thereof |
-
2021
- 2021-04-13 CN CN202110396204.1A patent/CN113183495A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5679421A (en) * | 1995-10-30 | 1997-10-21 | Brinton, Jr.; William F. | Biodegradable bags and processes for making such biodegradable bags |
| CN104909035A (en) * | 2015-06-01 | 2015-09-16 | 铜陵方正塑业科技有限公司 | Reproducible paper-plastic compound bag and preparation method thereof |
| CN105295408A (en) * | 2015-11-24 | 2016-02-03 | 安庆盛华纸质包装有限公司 | Environment-friendly type coated paper preparation technology |
| CN209601003U (en) * | 2019-03-01 | 2019-11-08 | 上海泰尔包装材料有限公司 | Degradable paper bag |
| CN110735360A (en) * | 2019-10-09 | 2020-01-31 | 浙江超凡日用品有限公司 | Production process of degradable paper bags |
| CN110878492A (en) * | 2019-12-12 | 2020-03-13 | 安庆市三环康泰纸塑有限公司 | Degradable environment-friendly laminating paper processing technology |
| CN111335071A (en) * | 2020-03-07 | 2020-06-26 | 济南文海包装材料有限公司 | Processing technology of laminating kraft paper |
| CN112537162A (en) * | 2020-12-05 | 2021-03-23 | 石月(天津)云科技有限公司 | Noctilucent silver paste silk decorative material and preparation process and preparation system thereof |
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Application publication date: 20210730 |