CN106956442B - A kind of production technology of plastic packaging bag - Google Patents
A kind of production technology of plastic packaging bag Download PDFInfo
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- CN106956442B CN106956442B CN201710200381.1A CN201710200381A CN106956442B CN 106956442 B CN106956442 B CN 106956442B CN 201710200381 A CN201710200381 A CN 201710200381A CN 106956442 B CN106956442 B CN 106956442B
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- film
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- packaging bag
- plastic packaging
- plastic
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- 229920003023 plastic Polymers 0.000 title claims abstract description 59
- 239000004033 plastic Substances 0.000 title claims abstract description 59
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 37
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 36
- 238000005516 engineering process Methods 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 18
- 238000007639 printing Methods 0.000 claims abstract description 15
- 238000002360 preparation method Methods 0.000 claims abstract description 12
- 230000001681 protective effect Effects 0.000 claims abstract description 11
- 238000004080 punching Methods 0.000 claims abstract description 8
- 238000012986 modification Methods 0.000 claims abstract description 7
- 230000004048 modification Effects 0.000 claims abstract description 7
- 239000002985 plastic film Substances 0.000 claims description 48
- 229920006255 plastic film Polymers 0.000 claims description 48
- 229920001038 ethylene copolymer Polymers 0.000 claims description 22
- 238000003756 stirring Methods 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 16
- -1 polyethylene Polymers 0.000 claims description 16
- 238000005520 cutting process Methods 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 14
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 10
- 239000004698 Polyethylene Substances 0.000 claims description 9
- 239000008116 calcium stearate Substances 0.000 claims description 9
- 229920000573 polyethylene Polymers 0.000 claims description 9
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 8
- 235000013539 calcium stearate Nutrition 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 8
- 229920001617 Vinyon Polymers 0.000 claims description 7
- 229920001971 elastomer Polymers 0.000 claims description 7
- 239000000806 elastomer Substances 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 7
- XNGIFLGASWRNHJ-UHFFFAOYSA-N o-dicarboxybenzene Natural products OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000000376 reactant Substances 0.000 claims description 7
- 238000010030 laminating Methods 0.000 claims description 6
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 claims description 6
- 229920013636 polyphenyl ether polymer Polymers 0.000 claims description 6
- 235000021355 Stearic acid Nutrition 0.000 claims description 5
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 5
- 239000004014 plasticizer Substances 0.000 claims description 5
- 239000008117 stearic acid Substances 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 239000000314 lubricant Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 235000019359 magnesium stearate Nutrition 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 238000005299 abrasion Methods 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N 1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylic acid Chemical compound C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 235000002256 Diospyros oleifera Nutrition 0.000 description 1
- 244000153389 Diospyros oleifera Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012803 melt mixture Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7128—Bags, sacks, sachets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
The invention discloses a kind of production technologies of plastic packaging bag, including following preparation step: preparing material, fusing, modification, blown film, color printing, overlay film, bag making, edge sealing and punching press.The simple production process of plastic packaging bag of the invention, easy to operate, production cost is low; the tensile strength for producing obtained plastic packaging bag is significantly improved; extend its service life; and matt film, PU oil and the protective film added after printed patterns can further protect pattern; make it be not easy to be worn, improves the surface abrasion resistance of polybag.
Description
Technical field
The present invention relates to technical field of plastic, and in particular to a kind of production technology of plastic packaging bag.
Background technique
Plastic shopping bag is the necessity in daily life, it is well known that present consumer and market have all been formed to modeling
Expect the hard requirement of packaging bag consumption, and this consumption has become a kind of habit, plastic packaging bag has incorporated everybody life
In work.In daily life, plastic packaging bag has become the first choice of packing articles due to light-weight, easy to use.Developing
Middle country, since commercialization process causes store quantity to increase steadily, to drive the further numerous of plastic packaging bag industry
Honor, the two show the correlation of height.Global plastic packaging bag industry totally shows the development trend of steady-state growth, You Shi
Swift and violent growth is still presented to the total demand of plastic packaging bag in developing country, to push plastic packaging bag industry
Sustainable growth and prosperity.Therefore, Low-cost, large batch of quality of production qualification plastic packaging bag technology more
It is important.
Summary of the invention
To solve the deficiencies in the prior art, the purpose of the present invention is to provide a kind of simple production process, easy to operate, raw
Produce production technology at low cost, and improving the tensile strength of polybag and the plastic packaging bag of wearability.
In order to achieve the above objectives, the present invention adopts the following technical scheme that:
A kind of production technology of plastic packaging bag, including following preparation step:
S1, prepare material: vinyon particle is filtered out with the sieve of 50~150 mesh, it is spare；
S2, fusing: polyethylene particle is put into reactor, and temperature is slowly increased to 200~220 DEG C, is being stirred continuously
Middle carry out melt processed, until reactant is added plasticizer and stabilizer, is stirred for 10~20min, is melted in after molten condition
Melt mixture；
S3, modification: being adjusted to 220~225 DEG C for temperature of reactor, is added calcium stearate into molten mixture, and stirring 5~
10min；It takes appropriate Toughening Effect of Ethylene Copolymer Elastomer to be divided into three parts of equivalent, first part of ethylene copolymer elasticity is added into reactor
Body, and temperature of reactor is slowly increased to 230 DEG C, keep temperature to stir 5~10min；Second part of ethylene copolymer elasticity is added
Body, and temperature of reactor is slowly increased to 235 DEG C, keep temperature to stir 5~10min；Third part ethylene copolymer elasticity is added
Body, and temperature of reactor is slowly increased to 240 DEG C, keep temperature to stir 10~20min；
S4, blown film: molten mixture is added into inflation film manufacturing machine and carries out blown film, the plastics of melting are after blown-film die filters
Remove impurity to squeeze out from die orifice, after cooling treatment, plastic film is made, it, will after being removed electrostatic treatment to plastic film
Plastic film is wound on the first emptying roller；
S5, color printing: the first emptying roller is installed on the feeding device of printing machine, prints upper pattern on a plastic film,
Figuratum plastic film winding will be printed again on the second emptying roller；
S6, overlay film: the second emptying roller is installed on the feeding device of laminating machine, prints figuratum one side in plastic film
On be covered with matt film, be then sequentially coated on matt film PU oil and protective film, then by overlay film complete plastic film wind
In on third emptying roller；
S7, bag making: third emptying roller is installed on the feeding device of Bag Making Machine, plastic film is cut；
S8, edge sealing: bottom and two sides to the bag body after cutting carry out heat-sealing edge sealing respectively, and heat-sealing temperature is 140~160
℃；
S9, punching press: cutting die punch process is carried out to the bag body after edge sealing, goes out on bag body handle and mentions hole, obtain plastics
Packaging bag finished product.
Preferably, in abovementioned steps S2, lubricant is additionally added in molten polyethylene material, lubricant is stearic acid, firmly
One of resin acid calcium or magnesium stearate.
More preferably, in abovementioned steps S2, plasticizer is made of phthalic acid ester, and plasticizer can increase the plastic of plastics
Property and flexibility, reduce brittleness, keep plastics easily processed into type, and plasticizer itself is nontoxic, odorless, it is all very steady to light, heat
It is fixed.
It is highly preferred that stabilizer is made of stearate or epoxy resin in abovementioned steps S2, may make plastics to light and
Heat is all very stable, prolongs its service life.
It is further preferred that the temperature of inflation film manufacturing machine is 155~165 DEG C in abovementioned steps S4.
Specifically, in abovementioned steps S4, cooling treatment selects air-cooled processing or water-cooled process.
Preferably, in abovementioned steps S6, protective film is made of polyphenyl ether material, and protective film has better wearability, can
The abrasion that the surface of plastic packaging bag is received is reduced, is prolonged its service life.
The invention has the beneficial effects that: the simple production process of plastic packaging bag of the invention, it is easy to operate, be produced into
This is low, and the tensile strength of the polybag obtained after modified and overlay film working process is obviously improved, and after printed patterns
Matt film, PU oil and the protective film added can further protect pattern, make it be not easy to be worn, improve the surface of polybag
Wearability.
Specific embodiment
Below in conjunction with detailed description of the invention by specific embodiments.
Embodiment 1
A kind of production technology of plastic packaging bag, including following preparation step:
S1, prepare material: vinyon particle is filtered out with the sieve of 50 mesh, it is spare；
S2, fusing: polyethylene particle is put into reactor, and temperature is slowly increased to 200 DEG C, is carried out in being stirred continuously
Melt processed is added phthalic acid ester, stearate and stearic acid, is stirred for 10min, obtains until reactant is in molten condition
To molten mixture；
S3, modification: being adjusted to 220~225 DEG C for temperature of reactor, is added calcium stearate into molten mixture, and stirring 5~
10min；It takes appropriate Toughening Effect of Ethylene Copolymer Elastomer to be divided into three parts of equivalent, first part of ethylene copolymer elasticity is added into reactor
Body, and temperature of reactor is slowly increased to 230 DEG C, keep temperature to stir 5~10min；Second part of ethylene copolymer elasticity is added
Body, and temperature of reactor is slowly increased to 235 DEG C, keep temperature to stir 5~10min；Third part ethylene copolymer elasticity is added
Body, and temperature of reactor is slowly increased to 240 DEG C, keep temperature to stir 10~20min；
S4, blown film: molten mixture being added into inflation film manufacturing machine and carries out blown film, and the temperature of inflation film manufacturing machine is adjusted to 155 DEG C, melting
Plastics remove after blown-film die filters impurity from die orifice squeeze out, after air-cooled cooling treatment, plastic film is made, to plastics
After film is removed electrostatic treatment, plastic film is wound on the first emptying roller；
S5, color printing: the first emptying roller is installed on the feeding device of printing machine, prints upper pattern on a plastic film,
Figuratum plastic film winding will be printed again on the second emptying roller；
S6, overlay film: the second emptying roller is installed on the feeding device of laminating machine, prints figuratum one side in plastic film
On be covered with matt film, PU oil and the protective film made of polyphenyl ether material are then sequentially coated on matt film, then by overlay film
The plastic film of completion is wound on third emptying roller；
S7, bag making: third emptying roller is installed on the feeding device of Bag Making Machine, plastic film is cut；
S8, edge sealing: bottom and two sides to the bag body after cutting carry out heat-sealing edge sealing respectively, and heat-sealing temperature is 140 DEG C；
S9, punching press: cutting die punch process is carried out to the bag body after edge sealing, goes out on bag body handle and mentions hole, obtain plastics
Packaging bag finished product.
Embodiment 2
The present embodiment is identical as the preparation step of embodiment 1, and difference is the difference of specific reaction condition and additive,
Preparation step is as follows:
A kind of production technology of plastic packaging bag, including following preparation step:
S1, prepare material: vinyon particle is filtered out with the sieve of 150 mesh, it is spare；
S2, fusing: polyethylene particle is put into reactor, is adjusted the temperature to 220 DEG C, is melted in being stirred continuously
Processing is added phthalic acid ester, epoxy resin and calcium stearate, is stirred for 20min, obtains until reactant is in molten condition
Molten mixture；
S3, modification: being adjusted to 220~225 DEG C for temperature of reactor, is added calcium stearate into molten mixture, and stirring 5~
10min；It takes appropriate Toughening Effect of Ethylene Copolymer Elastomer to be divided into three parts of equivalent, first part of ethylene copolymer elasticity is added into reactor
Body, and temperature of reactor is slowly increased to 230 DEG C, keep temperature to stir 5~10min；Second part of ethylene copolymer elasticity is added
Body, and temperature of reactor is slowly increased to 235 DEG C, keep temperature to stir 5~10min；Third part ethylene copolymer elasticity is added
Body, and temperature of reactor is slowly increased to 240 DEG C, keep temperature to stir 10~20min；
S4, blown film: molten mixture being added into inflation film manufacturing machine and carries out blown film, and the temperature of inflation film manufacturing machine is 165 DEG C, melting
Plastics remove impurity after blown-film die filters and squeeze out from die orifice, and after water cooled cooling treatment, plastic film is made, thin to plastics
After film is removed electrostatic treatment, plastic film is wound on the first emptying roller；
S5, color printing: the first emptying roller is installed on the feeding device of printing machine, prints upper pattern on a plastic film,
Figuratum plastic film winding will be printed again on the second emptying roller；
S6, overlay film: the second emptying roller is installed on the feeding device of laminating machine, prints figuratum one side in plastic film
On be covered with matt film, PU oil and the protective film made of polyphenyl ether material are then sequentially coated on matt film, then by overlay film
The plastic film of completion is wound on third emptying roller；
S7, bag making: third emptying roller is installed on the feeding device of Bag Making Machine, plastic film is cut；
S8, edge sealing: bottom and two sides to the bag body after cutting carry out heat-sealing edge sealing respectively, and heat-sealing temperature is 160 DEG C；
S9, punching press: cutting die punch process is carried out to the bag body after edge sealing, goes out on bag body handle and mentions hole, obtain plastics
Packaging bag finished product.
Embodiment 3
The present embodiment is identical as the preparation step of embodiment 1, and difference is the difference of specific reaction condition and additive,
Preparation step is as follows:
S1, prepare material: vinyon particle is filtered out with the sieve of 100 mesh, it is spare；
S2, fusing: polyethylene particle is put into reactor, is adjusted the temperature to 210 DEG C, is melted in being stirred continuously
Processing is added phthalic acid ester, epoxy resin and magnesium stearate, is stirred for 15min, obtains until reactant is in molten condition
Molten mixture；
S3, modification: being adjusted to 220~225 DEG C for temperature of reactor, is added calcium stearate into molten mixture, and stirring 5~
10min；It takes appropriate Toughening Effect of Ethylene Copolymer Elastomer to be divided into three parts of equivalent, first part of ethylene copolymer elasticity is added into reactor
Body, and temperature of reactor is slowly increased to 230 DEG C, keep temperature to stir 5~10min；Second part of ethylene copolymer elasticity is added
Body, and temperature of reactor is slowly increased to 235 DEG C, keep temperature to stir 5~10min；Third part ethylene copolymer elasticity is added
Body, and temperature of reactor is slowly increased to 240 DEG C, keep temperature to stir 10~20min；
S4, blown film: molten mixture being added into inflation film manufacturing machine and carries out blown film, and the temperature of inflation film manufacturing machine is 160 DEG C, melting
Plastics remove impurity after blown-film die filters and squeeze out from die orifice, and after air-cooled cooling treatment, plastic film is made, thin to plastics
After film is removed electrostatic treatment, plastic film is wound on the first emptying roller；
S5, color printing: the first emptying roller is installed on the feeding device of printing machine, prints upper pattern on a plastic film,
Figuratum plastic film winding will be printed again on the second emptying roller；
S6, overlay film: the second emptying roller is installed on the feeding device of laminating machine, prints figuratum one side in plastic film
On be covered with matt film, PU oil and the protective film made of polyphenyl ether material are then sequentially coated on matt film, then by overlay film
The plastic film of completion is wound on third emptying roller；
S7, bag making: third emptying roller is installed on the feeding device of Bag Making Machine, plastic film is cut；
S8, edge sealing: bottom and two sides to the bag body after cutting carry out heat-sealing edge sealing respectively, and heat-sealing temperature is 150 DEG C；
S9, punching press: cutting die punch process is carried out to the bag body after edge sealing, goes out on bag body handle and mentions hole, obtain plastics
Packaging bag finished product.
Comparative example 1
This comparative example and the processing step in embodiment 1 are substantially similar, and difference is no modification procedure:
A kind of production technology of plastic packaging bag, including following preparation step:
S1, prepare material: vinyon particle is filtered out with the sieve of 50 mesh, it is spare；
S2, fusing: polyethylene particle is put into reactor, and temperature is slowly increased to 200 DEG C, is carried out in being stirred continuously
Melt processed is added phthalic acid ester, stearate and stearic acid, is stirred for 10min, obtains until reactant is in molten condition
To molten mixture；
S3, blown film: molten mixture being added into inflation film manufacturing machine and carries out blown film, and the temperature of inflation film manufacturing machine is adjusted to 155 DEG C, melting
Plastics remove after blown-film die filters impurity from die orifice squeeze out, after air-cooled cooling treatment, plastic film is made, to plastics
After film is removed electrostatic treatment, plastic film is wound on the first emptying roller；
S4, color printing: the first emptying roller is installed on the feeding device of printing machine, prints upper pattern on a plastic film,
Figuratum plastic film winding will be printed again on the second emptying roller；
S5, overlay film: the second emptying roller is installed on the feeding device of laminating machine, prints figuratum one side in plastic film
On be covered with matt film, PU oil and the protective film made of polyphenyl ether material are then sequentially coated on matt film, then by overlay film
The plastic film of completion is wound on third emptying roller；
S6, bag making: third emptying roller is installed on the feeding device of Bag Making Machine, plastic film is cut；
S7, edge sealing: bottom and two sides to the bag body after cutting carry out heat-sealing edge sealing respectively, and heat-sealing temperature is 140 DEG C；
S8, punching press: cutting die punch process is carried out to the bag body after edge sealing, goes out on bag body handle and mentions hole, obtain plastics
Packaging bag finished product.
Comparative example 2
This comparative example and the processing step in embodiment 1 are substantially similar, and difference is without modified and overlay film step:
A kind of production technology of plastic packaging bag, including following preparation step:
S1, prepare material: vinyon particle is filtered out with the sieve of 50 mesh, it is spare；
S2, fusing: polyethylene particle is put into reactor, and temperature is slowly increased to 200 DEG C, is carried out in being stirred continuously
Melt processed is added phthalic acid ester, stearate and stearic acid, is stirred for 10min, obtains until reactant is in molten condition
To molten mixture；
S3, blown film: molten mixture being added into inflation film manufacturing machine and carries out blown film, and the temperature of inflation film manufacturing machine is adjusted to 155 DEG C, melting
Plastics remove after blown-film die filters impurity from die orifice squeeze out, after air-cooled cooling treatment, plastic film is made, to plastics
After film is removed electrostatic treatment, plastic film is wound on the first emptying roller；
S4, color printing: the first emptying roller is installed on the feeding device of printing machine, prints upper pattern on a plastic film,
Figuratum plastic film winding will be printed again on the second emptying roller；
S5, bag making: third emptying roller is installed on the feeding device of Bag Making Machine, plastic film is cut；
S6, edge sealing: bottom and two sides to the bag body after cutting carry out heat-sealing edge sealing respectively, and heat-sealing temperature is 140 DEG C；
S7, punching press: cutting die punch process is carried out to the bag body after edge sealing, goes out on bag body handle and mentions hole, obtain plastics
Packaging bag finished product.
Plastic tensile performance test: GB/T 1040-1992 " plastic tensile method for testing performance " is to reality according to national standards
It applies polybag obtained in example 1, embodiment 2, embodiment 3 and comparative example 1 and comparative example 2 and carries out plastic tensile performance examination respectively
It tests, testing result is as follows:
The tensile strength that can be seen that polybag obtained in embodiment 1, embodiment 2 and embodiment 3 according to upper table is obvious
Higher than comparative example 1 and comparative example 2, this illustrates that the tensile strength of the polybag obtained after modified and overlay film working process is obvious and obtains
Raising is arrived, that is to say, that the addition of calcium stearate and Toughening Effect of Ethylene Copolymer Elastomer can increase the elasticity of plastic foil, to make
Its with higher tensile strength, and in preparation process by Toughening Effect of Ethylene Copolymer Elastomer reaction temperature slowly it is raised under the conditions of
It is added portionwise and not only stirs, itself and molten mixture can be made more to be sufficiently mixed, its effect is made to perform to maximization；By right
Ratio 1 and comparative example 2 are as can be seen that it includes at overlay film processing that the tensile strength for not carrying out the polybag of overlay film working process, which is lower than,
The polybag of step is managed, this illustrates that matt film, PU oil and protective film not only can further protect pattern, it is made to be not easy to be worn
Fall, improve its surface abrasion resistance, also increase the surface strength of polybag, it is made to be not easy to be torn, to improve stretching
Intensity.
The simple production process of plastic packaging bag of the invention, easy to operate, production cost is low, the processing of modified and overlay film
The tensile strength of the polybag obtained after processing is obviously improved, and matt film, PU oil and the guarantor added after printed patterns
Cuticula can further protect pattern, it is made to be not easy to be worn, and improve its surface abrasion resistance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the above embodiments do not limit the invention in any form, all obtained by the way of equivalent substitution or equivalent transformation
Technical solution is fallen within the scope of protection of the present invention.
Claims (7)
1. a kind of production technology of plastic packaging bag, which is characterized in that including following preparation step:
S1, prepare material: vinyon particle is filtered out with the sieve of 50~150 mesh, it is spare；
S2, fusing: polyethylene particle is put into reactor, and temperature is slowly increased to 200~220 DEG C, in being stirred continuously into
It is mixed to obtain melting until reactant is added plasticizer and stabilizer, is stirred for 10~20min in after molten condition for row melt processed
Close object；
S3, modification: being adjusted to 220~225 DEG C for temperature of reactor, is added calcium stearate into molten mixture, and stirring 5~
10min；It takes appropriate Toughening Effect of Ethylene Copolymer Elastomer to be divided into three parts of equivalent, first part of ethylene copolymer elasticity is added into reactor
Body, and temperature of reactor is slowly increased to 230 DEG C, keep temperature to stir 5~10min；Second part of ethylene copolymer elasticity is added
Body, and temperature of reactor is slowly increased to 235 DEG C, keep temperature to stir 5~10min；Third part ethylene copolymer elasticity is added
Body, and temperature of reactor is slowly increased to 240 DEG C, keep temperature to stir 10~20min；
S4, blown film: molten mixture being added into inflation film manufacturing machine and carries out blown film, and the plastics of melting remove after blown-film die filters
Impurity is squeezed out from die orifice, after cooling treatment, plastic film is made, after being removed electrostatic treatment to plastic film, by plastics
Film take-up is on the first emptying roller；
S5, color printing: the first emptying roller is installed on the feeding device of printing machine, prints upper pattern on a plastic film, then will
Figuratum plastic film winding is printed on the second emptying roller；
S6, overlay film: the second emptying roller is installed on the feeding device of laminating machine, is printed in plastic film and is covered in figuratum one side
Then upper matt film is sequentially coated with PU oil and protective film on matt film, then the plastic film winding that overlay film is completed is in the
On three emptying rollers；
S7, bag making: third emptying roller is installed on the feeding device of Bag Making Machine, plastic film is cut；
S8, edge sealing: bottom and two sides to the bag body after cutting carry out heat-sealing edge sealing respectively, and heat-sealing temperature is 140~160 DEG C；
S9, punching press: cutting die punch process is carried out to the bag body after edge sealing, goes out on bag body handle and mentions hole, obtain plastics package
Bag finished product.
2. a kind of production technology of plastic packaging bag according to claim 1, which is characterized in that in the step S2,
Lubricant is additionally added in polyethylene material under molten condition, the lubricant is in stearic acid, calcium stearate or magnesium stearate
One kind.
3. a kind of production technology of plastic packaging bag according to claim 1, which is characterized in that in the step S2, increase
Modeling agent is made of phthalic acid ester.
4. a kind of production technology of plastic packaging bag according to claim 1, which is characterized in that in the step S2, surely
Determine agent to be made of stearate or epoxy resin.
5. a kind of production technology of plastic packaging bag according to claim 1, which is characterized in that in the step S4, blow
The temperature of film machine is 155~165 DEG C.
6. a kind of production technology of plastic packaging bag according to claim 1, which is characterized in that cold in the step S4
But air-cooled processing or water-cooled process are selected in processing.
7. a kind of production technology of plastic packaging bag according to claim 1, which is characterized in that in the step S6, protect
Cuticula is made of polyphenyl ether material.
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| CN107936363A (en) * | 2017-12-25 | 2018-04-20 | 安徽省临泉县万隆塑料包装有限公司 | A kind of preparation method for the plastic packaging bag of resistance to bacterium |
| CN108656563B (en) * | 2018-05-10 | 2020-07-24 | 淄博洁林塑料制管有限公司 | Production method of plastic packaging bag |
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| CN110027788B (en) * | 2019-04-26 | 2020-04-21 | 佛山市双富包装有限公司 | Environment-friendly polyethylene dense bag and shaping device and production method thereof |
| CN110281419A (en) * | 2019-08-07 | 2019-09-27 | 重庆市腾业塑料制品有限公司 | A kind of plastic bag production technology process |
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| CN111471284A (en) * | 2020-04-24 | 2020-07-31 | 重庆佳磊印务有限公司 | Production process of degradable environment-friendly plastic product |
| CN111452429A (en) * | 2020-05-13 | 2020-07-28 | 安徽天大环保新材料股份有限公司 | Packaging bag production process |
| CN111841664A (en) * | 2020-08-05 | 2020-10-30 | 巨轮智能装备股份有限公司 | Continuous quick-heating sealing method for plastic membrane for manufacturing ion exchange membrane |
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