CN110525785A - A kind of three-in-one compound paper bag and its production method - Google Patents
A kind of three-in-one compound paper bag and its production method Download PDFInfo
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- CN110525785A CN110525785A CN201910730654.2A CN201910730654A CN110525785A CN 110525785 A CN110525785 A CN 110525785A CN 201910730654 A CN201910730654 A CN 201910730654A CN 110525785 A CN110525785 A CN 110525785A
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- paper bag
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
- B65D31/04—Bags or like containers made of paper and having structural provision for thickness of contents with multiple walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
- B65D31/16—Bags or like containers made of paper and having structural provision for thickness of contents of special shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/06—Handles
- B65D33/12—String handles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
Abstract
The present invention relates to a kind of three-in-one compound paper bag and its production method, which is made of leaching membrane layer, non-woven fabrics and brown paper, and paper bag is inverted trapezoidal, and side is foldable structure, there is retraction cord and interlayer.Production method mainly comprises the steps that the configuration of S1, cross-linking agent solution；S2, non-woven fabrics and brown paper it is compound；S3, lamination feedstock processing；S4, extrusion coating paper lamination；The production of S5, paper bag.The present invention devises a kind of three-in-one compound paper bag, which overcomes common paper bag and be easy damaged, non-watertight disadvantage non-moistureproof, intensity is low, can also prevent article from spilling, and is able to carry out taxonomy of goods storage.
Description
Technical field
The present invention relates to paper bag production fields, and in particular to a kind of three-in-one compound paper bag and its production method.
Background technique
People generally fill some daily necessities, food with sack, and there are many type of sack, common are polybag, paper bag
Deng.Polybag is suitable for various occasions, and polybag is used to fill various quotient polybag for filling vegetables, in market in food market
Product, polybag is used to fill various sundries in the family of people, and people are widely used in the convenience of polybag.However polybag
Very difficult decomposition, a common plastics bag decompose the time for needing the centuries completely in a natural environment, and the use of polybag is made
At white pollution.If polybag abandons in the seawater, the dead of marine organisms is likely to result in after marine organisms are eaten by mistake
It dies.Therefore, after everybody appreciates the harm of polybag, the use of polybag is gradually limited.
Thus environment-friendly type paper bag has moved towards market, and the effect of paper bag is similar with polybag, but for polybag,
Paper bag is easier that damaged, non-watertight, intensity is low, and paper bag is toppled over rear article and easily spilt, therefore limits the use of paper bag, paper
Bag is normally only used for filling some food or light article, use scope are narrow.
Therefore, the present invention devises a kind of three-in-one compound paper bag, and the paper bag is by leaching membrane layer, non-woven fabrics and brown paper structure
At, and paper bag has cinch cord and interlayer, and which overcomes common paper bag and is easy the disadvantage damaged, non-watertight, intensity is low, also
It can prevent article from spilling, be able to carry out taxonomy of goods storage.
Summary of the invention
The present invention provides a kind of three-in-one compound paper bag:
The tow sides of the three-in-one compound paper bag are inverted trapezoidal, and the two sides of paper bag are foldable, the tow sides of paper bag
Altogether there are four circular hole, have metal ring on circular hole, pass through a rope in metal ring, there are interlayer, paper bag in the centre of paper bag
Altogether there are two the identical accommodating chamber of size, paper bag shares trilaminate material, respectively leaching membrane layer, non-woven fabrics and ox-hide from inside to outside
Paper.
The opening length of the three-in-one compound paper bag is 25-30cm, bottom lengths 20-25cm, is highly 30-
35cm, opening strut with a thickness of 10-15cm, more strut that thickness is more smaller toward sack inner part, and bottom struts with a thickness of 5-
10cm, the position of circular hole away from the downward 3-5cm of paper bag opening at, the position of circular hole is away from paper bag side distance 3-4cm.
The leaching membrane layer of the three-in-one compound paper bag with a thickness of 0.1-0.2mm, nonwoven thickness 0.3-0.35mm, ox-hide
Paper with a thickness of 0.3-0.4mm.
The present invention also provides a kind of production methods of three-in-one compound paper bag: the following steps are included:
The preparation of S1, cross-linking agent solution；
S2, non-woven fabrics and brown paper it is compound；
The processing of S3, lamination raw material；
S4, extrusion coating paper lamination；
The production of S5, paper bag.
Further, in step S1, specific step is as follows for the configuration of cross-linking agent solution: weighing 8-9 parts of distilled water, carboxylic first
1-2 parts of base sodium cellulosate, distilled water is added into clean beaker, then puts the magneton being of moderate size into beaker, then
Beaker is placed in magnetic heating stirrer, is heated up while stirring, when temperature rises to 50-60 DEG C, divide 2-3 times by carboxylic first
Base sodium cellulosate is put into beaker, after sodium carboxymethylcellulose dissolution, is stirred evenly, is obtained cross-linking agent solution.
Further, in step S2, non-woven fabrics and kraft compounded concrete operations are as follows: brown paper is spread smooth
Workbench on, then by shape, the identical non-textile mulch of size on brown paper, by brown paper, the four edges of non-woven fabrics
Alignment, and flattened brown paper and non-woven fabrics using smooth plank, make bubble-free, corrugationless between the two, it will be in S1 step
The cross-linking agent solution being prepared is put into sprayer, sprays cross-linking agent solution to non-woven fabrics with sprayer, crosslinking agent slowly seeps
Saturating non-woven fabrics, and non-woven fabrics and brown paper are crosslinked integrally, obtain two-layer compound paper.
Further, in step S3, the operation of lamination feedstock processing is as follows: it is poly- to weigh 90-95 parts of high pressure polyethylene, low pressure
3-4 parts of ethylene, 0.2-0.4 parts of phenolic resin, 0.1-0.2 parts of stannous methide, 0.1-0.15 parts of catalyst, by high pressure polyethylene,
Low pressure polyethylene is put into raw material smelting furnace, is set reaction temperature as 120-130 DEG C, is melted to high pressure polyethylene and low pressure polyethylene
After change, phenolic resin, stannous methide and catalyst are successively added into smelting furnace, then raise the temperature to 140-150 DEG C, react
20-30min obtains lamination raw material.
Further, in step S4, the operation of extrusion coating paper lamination is as follows: two-layer compound paper is placed on melting extruder
Downside, and the non-woven fabrics of two-layer compound paper is upward, then carries out heating melting to raw material, smelting temperature is 130-140 DEG C, raw material
Melting is flowed out from extrusion seam after melting, and is cast in the surface layer of non-woven fabrics, is carried out after casting complete with surface of the blower to lamination
Quenching obtains three-in-one extrusion coating paper.
Further, in step S5, paper bag is produced as follows: three-in-one extrusion coating paper is cut into inverted trapezoidal, inverted trapezoidal
Upper bottom edge is long, bottom is short, then folds two bevel edges of inverted trapezoidal, obtains the half of paper bag, then by two and half paper
The two sides and bottom of bag are bonded, and obtain complete paper bag, then to interlayer is added among paper bag, cut one piece of inverted trapezoidal
Paper, the upper bottom edge length of inverted trapezoidal are the thickness that struts of trapezoidal paper bag upper bottom edge, and inverted trapezoidal goes to the bottom edge lengths as trapezoidal paper bag
Bottom struts thickness, and then the inverted trapezoidal cut is sticked in trapezoidal paper bag, trapezoidal paper bag is separated into two big
Small identical accommodating chamber.
Wherein, present invention is characterized in that the length of the paper bag, height and width are moderate, convenient for life in use,
Paper bag can be used to fill breakfast, key, coin etc., and paper bag opening struts thickness maximum, more inside, expansible
Thickness is smaller, and such design is so that article is easier to be put into paper bag, convenient for the pick-and-place of article.Paper bag is equipped with interlayer, can be with
One sack fills a variety of things, accomplishes storing classifiedly for different articles.Paper bag is equipped with retraction cord, after being packed into article, tenses and shrinks
Rope, can both prevent article from spilling, and can also prevent dust from entering, and realize the isolation of inside and outside gas, play moisture-proof effect.Paper
The lateral layout of bag is at the shape that can be folded, and in the case where not using paper bag, paper bag can be pressed into scraps of paper shape, and one
Many paper bags can be stacked in fixed space, are not taken up space, and convenient for storage and carried.
The internal layer of paper bag is leaching membrane layer, therefore paper bag can fill some water-bearing articles, such as water fruits and vegetables etc., lamination
The design of layer is prevent moisture from article from being transferred to inside paper bag, therefore the paper bag has water-proof function, avoids paper bag profit
After wet the characteristics of cracky.If what is filled in paper bag is dry goods, which also has fills in moisture-proof function, such as paper bag
The dry food such as biscuit, after the opening of paper bag is sealed, moisture in air cannot by the leaching membrane layer of paper bag, from
And paper bag has moisture-proof function.
The centre of paper bag is non-woven fabrics, and non-woven fabrics is mainly made of fiber, therefore non-woven fabrics enhances the intensity of paper bag, adds
The weight for having added the paper bag of nonwoven layer can bear is improved, and when paper bag is equipped with heavier article, which still can
The shortcomings that enough bearing the weight compared with heavy articles, overcoming low common paper bag intensity, cracky.
In a natural environment, plastics will not be bacterially decomposed common plastics bag, and the material of plastics itself is also difficult oneself and divides
Solution, the main component of the paper bag are non-woven fabrics and brown paper, contain only thinner leaching membrane layer, therefore after paper bag is discarded, In
It is easier to decompose in natural environment, therefore reduces the generation of white pollution, the influence very little to environment.
Beneficial effect
1. the present invention devises a kind of three-in-one compound paper bag, which is of moderate size, convenient for the access of article, paper bag
With waterproof and dampproof sift-proof function, and the paper bag can accomplish storing classifiedly for article, and the intensity of paper bag compares plain paper
Bag is bigger, cracky, the paper bag are not compared with polybag, can comparatively fast be decomposed in a natural environment, can reduce white pollution,
Protect environment.
2. the characteristics of paper bag opening is wide, narrow base is equipped with retraction cord, can prevent article from spilling convenient for the pick-and-place of article, paper bag
Out, the two sides of paper bag are foldable structure, can be pressed into scraps of paper shape when not in use, convenient for storage, are not taken up space, in use, can
Can suitably adjust distracted thickness according to the size of article, therefore paper bag is with strong applicability.
3. the leaching membrane layer of paper bag can be waterproof and dampproof, after fastening retraction cord, it can be ensured that dry goods do not make moist, can also
To ensure that band water article contained humidity will not permeate paper bag, paper bag is caused to be destroyed, therefore paper bag has moisture-proof function.
4. the non-woven fabrics among paper bag increases the intensity of paper bag, the applicability of paper bag is stronger, is able to bear heavier matter
Amount.
Detailed description of the invention
Fig. 1 is preparation flow figure of the invention；
Fig. 2 is schematic diagram of the invention；
Fig. 3 is sectional view of the invention；
Fig. 4 is material-structure schematic diagram of the invention.
Specific embodiment
1-3 and process of the invention and operating procedure are made in conjunction with the embodiments further detailed with reference to the accompanying drawings
Explanation.
Embodiment 1
8 parts of distilled water, 1.5 parts of sodium carboxymethylcellulose are weighed, 4 parts of distilled water are added into clean beaker, then to burning
The magneton being of moderate size is put in cup, then beaker is placed in magnetic heating stirrer, heats up while stirring, works as temperature
When degree rises to 50-60 DEG C, divides 3 times and sodium carboxymethylcellulose is put into beaker, it, will be remaining after sodium carboxymethylcellulose dissolution
Distilled water be all added in beaker, stir evenly, obtain cross-linking agent solution；
Brown paper is spread on smooth workbench, then by shape, the identical non-textile mulch of size on brown paper
The four edges of brown paper, non-woven fabrics are aligned by face, and are flattened brown paper and non-woven fabrics using smooth plank, make the two
Between bubble-free, corrugationless, by cross-linking agent solution put into sprayer in, with sprayer to non-woven fabrics spray cross-linking agent solution, crosslinking
Non-woven fabrics is slowly permeated in agent, and non-woven fabrics and brown paper are crosslinked integrally, obtains two-layer compound paper；
Weigh 90 parts of high pressure polyethylene, 3 parts of low pressure polyethylene, 0.3 part of phenolic resin, 0.15 part of stannous methide, catalyst
0.1 part, high pressure polyethylene, low pressure polyethylene are put into raw material smelting furnace, sets reaction temperature as 120-130 DEG C, to high pressure
After polyethylene and low pressure polyethylene melt, it is successively added phenolic resin, stannous methide and catalyst into smelting furnace, then by temperature
It is increased to 140-150 DEG C, 20-30min is reacted, obtains lamination raw material；
Two-layer compound paper is placed on to the downside of melting extruder, and the non-woven fabrics of two-layer compound paper is upward, then to original
Material carries out heating melting, and smelting temperature is 130-140 DEG C, and raw material melting is flowed out from extrusion seam after melting, and is cast in non-woven fabrics
Surface layer, cooling is blowed with surface of the blower to lamination after casting complete, obtains three-in-one extrusion coating paper；
Three-in-one extrusion coating paper is cut into inverted trapezoidal, the upper bottom edge of inverted trapezoidal is long, bottom is short, then by the two of inverted trapezoidal
Bevel edge is folded, and the half of paper bag is obtained, and is finally bonded the two sides of two and half paper bags and bottom, is then cut
Interlayer, adhesion interlayer, and string holes is punched to paper bag, becket is fixed on threading hole, is then fastened the rope of suitable length, is obtained
Opening length to complete paper bag, paper bag is 30cm, bottom lengths 25cm, is highly 30cm, opening struts thickness
For 15cm, more strut that thickness is more smaller toward sack inner part, bottom struts with a thickness of 10cm.
The paper bag intensity that this method obtains is larger, waterproof and dampproof dusting-proof, convenient for article access and store classifiedly, discard
It is degradable afterwards, the pollution of environment is not easily caused.
Embodiment 2
9 parts of distilled water, 1 part of sodium carboxymethylcellulose are weighed, 5 parts of distilled water are added into clean beaker, then to beaker
In put the magneton being of moderate size, then beaker is placed in magnetic heating stirrer, heats up while stirring, works as temperature
When rising to 50-60 DEG C, divides 3 times and sodium carboxymethylcellulose is put into beaker, it, will be remaining after sodium carboxymethylcellulose dissolution
Distilled water is all added in beaker, is stirred evenly, and cross-linking agent solution is obtained；
Brown paper is spread on smooth workbench, then by shape, the identical non-textile mulch of size on brown paper
The four edges of brown paper, non-woven fabrics are aligned by face, and are flattened brown paper and non-woven fabrics using smooth plank, make the two
Between bubble-free, corrugationless, by cross-linking agent solution put into sprayer in, with sprayer to non-woven fabrics spray cross-linking agent solution, crosslinking
Non-woven fabrics is slowly permeated in agent, and non-woven fabrics and brown paper are crosslinked integrally, obtains two-layer compound paper；
Weigh 95 parts of high pressure polyethylene, 3 parts of low pressure polyethylene, 0.3 part of phenolic resin, 0.15 part of stannous methide, catalyst
0.1 part, high pressure polyethylene, low pressure polyethylene are put into raw material smelting furnace, sets reaction temperature as 120-130 DEG C, to high pressure
After polyethylene and low pressure polyethylene melt, it is successively added phenolic resin, stannous methide and catalyst into smelting furnace, then by temperature
It is increased to 140-150 DEG C, 20-30min is reacted, obtains lamination raw material；
Two-layer compound paper is placed on to the downside of melting extruder, and the non-woven fabrics of two-layer compound paper is upward, then to original
Material carries out heating melting, and smelting temperature is 130-140 DEG C, and raw material melting is flowed out from extrusion seam after melting, and is cast in non-woven fabrics
Surface layer, cooling is blowed with surface of the blower to lamination after casting complete, obtains three-in-one extrusion coating paper；
Three-in-one extrusion coating paper is cut into inverted trapezoidal, the upper bottom edge of inverted trapezoidal is long, bottom is short, then by the two of inverted trapezoidal
Bevel edge is folded, and the half of paper bag is obtained, and is finally bonded the two sides of two and half paper bags and bottom, is then cut
Interlayer, adhesion interlayer, and string holes is punched to paper bag, becket is fixed on threading hole, is then fastened the rope of suitable length, is obtained
Opening length to complete paper bag, paper bag is 25cm, bottom lengths 20cm, is highly 30cm, opening struts thickness
For 12cm, more strut that thickness is more smaller toward sack inner part, bottom struts with a thickness of 8cm.
The paper bag intensity that this method obtains is larger, waterproof and dampproof dusting-proof, convenient for article access and store classifiedly, discard
It is degradable afterwards, the pollution of environment is not easily caused.
Claims (9)
1. a kind of three-in-one compound paper bag, it is characterised in that: the tow sides of the three-in-one compound paper bag are inverted trapezoidal, paper bag
Two sides are foldable, the tow sides of paper bag altogether there are four circular hole, have metal ring on circular hole, pass through one in metal ring
There are interlayer in rope, the centre of paper bag, and for paper bag altogether there are two the identical accommodating chamber of size, paper bag shares trilaminate material from inside to outside,
Respectively leaching membrane layer, non-woven fabrics and brown paper.
2. three-in-one compound paper bag described in one kind as described in claim 1, it is characterised in that: the three-in-one compound paper bag
Opening length is 25-30cm, bottom lengths 20-25cm, is highly 30-35cm, opening struts with a thickness of 10-
15cm, more struts that thickness is smaller toward sack inner part, and bottom struts with a thickness of 5-10cm, the position of circular hole away from paper bag opening to
At lower 3-5cm, the position of circular hole is away from paper bag side distance 3-4cm.
3. three-in-one compound paper bag described in one kind as described in claim 1, it is characterised in that: the three-in-one compound paper bag
Leaching membrane layer with a thickness of 0.1-0.2mm, nonwoven thickness 0.3-0.35mm, brown paper with a thickness of 0.3-0.4mm.
4. a kind of production method of three-in-one compound paper bag: it is characterized by comprising following steps:
The preparation of S1, cross-linking agent solution；
S2, non-woven fabrics and brown paper it is compound；
The processing of S3, lamination raw material；
S4, extrusion coating paper lamination；
The production of S5, paper bag.
5. a kind of production method of three-in-one compound paper bag as claimed in claim 4, it is characterised in that: in step S1, crosslinking
Specific step is as follows for the configuration of agent solution: 8-9 parts of distilled water, 1-2 parts of sodium carboxymethylcellulose is weighed, into clean beaker
Distilled water is added, then puts the magneton being of moderate size into beaker, then beaker is placed in magnetic heating stirrer, on one side
Stirring heats up on one side, when temperature rises to 50-60 DEG C, divides 2-3 times and sodium carboxymethylcellulose is put into beaker, when carboxymethyl fibre
After tieing up plain sodium dissolution, stirs evenly, obtain cross-linking agent solution.
6. a kind of production method of three-in-one compound paper bag as claimed in claim 4, it is characterised in that: in step S2, nonwoven
Cloth and kraft compounded concrete operations are as follows: brown paper being spread on smooth workbench, then shape, size is identical
The four edges of brown paper, non-woven fabrics are aligned by non-textile mulch on brown paper, and using smooth plank by brown paper and
Non-woven fabrics flattens, and makes bubble-free, corrugationless between the two, and the cross-linking agent solution being prepared in S1 step is put into sprayer
In, cross-linking agent solution is sprayed to non-woven fabrics with sprayer, crosslinking agent slowly permeates non-woven fabrics, and non-woven fabrics and brown paper are crosslinked
Integrally, two-layer compound paper is obtained.
7. a kind of production method of three-in-one compound paper bag as claimed in claim 4, it is characterised in that: in step S3, lamination
The operation of feedstock processing is as follows: weighing 90-95 parts of high pressure polyethylene, 3-4 parts of low pressure polyethylene, 0.2-0.4 parts of phenolic resin, two
0.1-0.2 parts of methyl tin, 0.1-0.15 parts of catalyst, high pressure polyethylene, low pressure polyethylene are put into raw material smelting furnace, setting
Reaction temperature is 120-130 DEG C, and after high pressure polyethylene and low pressure polyethylene melt, phenolic aldehyde tree is successively added into smelting furnace
Rouge, stannous methide and catalyst, then 140-150 DEG C is raised the temperature to, 20-30min is reacted, lamination raw material is obtained.
8. a kind of production method of three-in-one compound paper bag as claimed in claim 4, it is characterised in that: compound in step S4
The operation of paper lamination is as follows: two-layer compound paper is placed on to the downside of melting extruder, and the non-woven fabrics of two-layer compound paper is upward,
Then heating melting is carried out to raw material, smelting temperature is 130-140 DEG C, and raw material melting is flowed out from extrusion seam after melting, and is poured
On the surface layer of non-woven fabrics, cooling is blowed with surface of the blower to lamination after casting complete, obtains three-in-one extrusion coating paper.
9. a kind of production method of three-in-one compound paper bag as claimed in claim 4, it is characterised in that: in step S5, paper bag
Be produced as follows: three-in-one extrusion coating paper is cut into inverted trapezoidal, the upper bottom edge of inverted trapezoidal is long, bottom is short, then by inverted trapezoidal
Two bevel edges folded, obtain the half of paper bag, then the two sides of two and half paper bags and bottom bonded, are obtained
Complete paper bag, then to interlayer is added among paper bag, one piece of inverted trapezoidal paper is cut, the upper bottom edge length of inverted trapezoidal is on trapezoidal paper bag
Bottom edge struts thickness, inverted trapezoidal bottom edge lengths are that trapezoidal paper bag bottom struts thickness, then will cut
Inverted trapezoidal is sticked in trapezoidal paper bag, and trapezoidal paper bag is separated into the identical accommodating chamber of two sizes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910730654.2A CN110525785A (en) | 2019-08-08 | 2019-08-08 | A kind of three-in-one compound paper bag and its production method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910730654.2A CN110525785A (en) | 2019-08-08 | 2019-08-08 | A kind of three-in-one compound paper bag and its production method |
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| CN110525785A true CN110525785A (en) | 2019-12-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114772051A (en) * | 2022-04-08 | 2022-07-22 | 董鑫 | High-strength waterproof self-degradation paper bag |
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| CN1948618A (en) * | 2006-11-02 | 2007-04-18 | 区智麟 | Non woven cloth composite packaging paper and its manufacturing method |
| CN202608155U (en) * | 2012-05-21 | 2012-12-19 | 杭州星点包装材料有限公司 | Novel preservative packaging film |
| CN203497342U (en) * | 2013-10-28 | 2014-03-26 | 天津蓝拓塑料包装有限公司 | Novel paper bag |
| CN204825512U (en) * | 2015-07-12 | 2015-12-02 | 温州市新丰复合材料有限公司 | Novel drench membrane paper |
| CN107187733A (en) * | 2017-06-23 | 2017-09-22 | 太仓清宇特种塑料有限公司 | A kind of Woven cloth compounded film packaging material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1948618A (en) * | 2006-11-02 | 2007-04-18 | 区智麟 | Non woven cloth composite packaging paper and its manufacturing method |
| CN202608155U (en) * | 2012-05-21 | 2012-12-19 | 杭州星点包装材料有限公司 | Novel preservative packaging film |
| CN203497342U (en) * | 2013-10-28 | 2014-03-26 | 天津蓝拓塑料包装有限公司 | Novel paper bag |
| CN204825512U (en) * | 2015-07-12 | 2015-12-02 | 温州市新丰复合材料有限公司 | Novel drench membrane paper |
| CN107187733A (en) * | 2017-06-23 | 2017-09-22 | 太仓清宇特种塑料有限公司 | A kind of Woven cloth compounded film packaging material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114772051A (en) * | 2022-04-08 | 2022-07-22 | 董鑫 | High-strength waterproof self-degradation paper bag |
| CN114772051B (en) * | 2022-04-08 | 2024-02-20 | 汕头市佳宏纸制品有限公司 | High-strength waterproof self-degrading paper bag |
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Application publication date: 20191203 |