CN107953637A - A kind of packaging film - Google Patents
A kind of packaging film Download PDFInfo
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- CN107953637A CN107953637A CN201711375786.5A CN201711375786A CN107953637A CN 107953637 A CN107953637 A CN 107953637A CN 201711375786 A CN201711375786 A CN 201711375786A CN 107953637 A CN107953637 A CN 107953637A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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Abstract
The present invention provides a kind of packaging film.The packaging film by weight percentage, including set gradually from outside to inside outer layer, middle level, internal layer three parts, the preparing raw material of the outer layer includes LDPE TN00, MLLDPE 1820D, FB 2230 and LLDPE 118N；The preparing raw material in the middle level includes FB 2310, MLLDPE 2045G, MLLDPE 1820D, LLDPE 118N, LDPE 871SF and LDPE 750TC；The preparing raw material of the internal layer includes LDPE TN00, MDPE 5401, MLLDPE 1820D, FB 2230, LLDPE 118N and EAB 34S.The packaging film of the present invention makes the processing performance of obtained packaging film good, has good temperature variation resistant, shock resistance by adjusting every layer of material composition and ratio.
Description
Technical field
The invention belongs to thin film technique field, is related to a kind of packaging film.
Background technology
Packaging film is exactly the packaging film that content is liquid, it has eaten as a new paragon of plastic flexible package
Product, field of medicaments packaging material in be used widely.Packaging film is that to use polyethylene (PE) co-extrusion film be main mostly
Thin-film material, it has to comply with the requirement of packages printing, processing, storing and health etc..
The three-layer co-extruded multilayer packing membrane industries of FFS flourished in recent years, and panoramic multilayer packing membrane continues to bring out, in order to
Ensure that multilayer packing membrane has higher mechanical strength and heat seal strength, multilayer packing membrane usually selects the cyclopentadienyl of hexene or octene copolymer
The linear low density polyethylene resin of metal linear ldpe resin (m-LLDP), hexene or octene copolymer
(LLDPE), high-density polyethylene resin (HDPE) mixture of the ldpe resin (LDPE) of homopolymerization and butene
It is made.Not only raw material is more for existing multilayer packing membrane formula, and the multilayer packing membrane intensity prepared is undesirable.Also have and select a large amount of hexenes
Or the linear low density polyethylene resin (m-LLDPE) of octene copolymer, the ldpe resin (LDPE) of homopolymerization and fourth
High-density polyethylene resin (HDPE) mixture of alkene copolymerization is made, but obtained multilayer packing membrane is due to intensity higher LLDPE, m-
LLDPE and rigid larger HDPE requires equipment processing ability harsh, it is difficult to extensive use production, and currently used solution
Method is to add LDPE to improve the working ability of overall raw material, but the addition of LDPE greatly reduces multilayer packing membrane intensity, cuts
The economic value of product is subtracted.
CN102673882A provides a kind of liquid packaging composite film and preparation method thereof, is disposed with table from top to bottom
Layer, barrier layer, enhancement layer and hot sealing layer, top layer are the polyethylene terephthalate film layer through sided corona treatment, and barrier layer is
Aluminium foil layer, enhancement layer are the polyethylene terephthalate film layer by sided corona treatment, and hot sealing layer is made of following material：40
The eight carbon linear low density polyethylene of~60wt%, the polyvinyl acetate of 35~50wt%, the low density polyethylene of 5~10wt%
Alkene.The liquid packaging composite film that the invention provides have it is excellent it is resistance to fall pressure-resistant performance, it is resistance to fall test and be shown in 10m eminences fall
Do not ruptured once to cement flooring, when pressure-resistant performance test display static pressure pressure is 20MPa, 24 do not leak when small.
The performances such as the pressure-resistant of packaging film of the prior art, high temperature resistant are all fairly perfect, but for some flexible package punch
The special demand of content, such as the packaging film of petrochemical industry class require film to have good temperature variation resistant, impact resistance when in use
Energy.Therefore, study it is a kind of with good temperature variation resistant, shock resistance packaging film highly significant.
The content of the invention
In view of the deficiencies of the prior art, it is an object of the invention to provide a kind of packaging film, there is good temperature variation resistant, resist
Impact property.
To use following technical scheme up to the invention purpose, the present invention：
A kind of packaging film, including set gradually from outside to inside outer layer, middle level, internal layer three parts, by weight percentage,
The outer layer weight accounts for the 10~30% of film gross weight, and the middle layer weight accounts for the 50~70% of film gross weight, and the interior layer weight accounts for
The 10~30% of film gross weight；Such as outer layer weight account for film gross weight 10%, 11%, 12%, 13%, 14%, 15%, 16%,
17%th, 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30%；In described
Layer weight account for film gross weight 50%, 52%, 54%, 55%, 56%, 58%, 60%, 61%, 62%, 63%, 65%, 66%,
68%th, 69%, 70%；The interior layer weight account for film gross weight 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%,
18%th, 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30%.
Wherein, by weight percentage,
The preparing raw material of the outer layer include 20~40% LDPE TN00,30~40% MLLDPE1820D, 10~
The sum of the LLDPE 118N of 20% FB 2230 and 10~20%, percentage by weight of above-mentioned raw materials are 100%；Such as LDPE
The percentage by weight of TN00 is 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30%,
31%th, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 40%；The percentage by weight of MLLDPE 1820D is
30%th, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 40%；The percentage by weight of FB 2230 is
10%th, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%；The percentage by weight of LLDPE 118N
For 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%.
The preparing raw material in the middle level include 10~30% FB 2310,10~30% MLLDPE2045G, 20~
40% MLLDPE 1820D, 10~20% LLDPE 118N, the LDPE of 1~5% LDPE871SF and 1~5%
The sum of 750TC, the percentage by weight of above-mentioned raw materials is 100%；Such as the percentage by weight of FB2310 is 10%, 11%, 12%,
13%th, 14%, 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%,
28%th, 29%, 30%；The percentage by weight of MLLDPE 2045G is 10%, 11%, 12%, 13%, 14%, 15%, 16%,
17%th, 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30%；MLLDPE
The percentage by weight of 1820D is 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30%,
31%th, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 40%；The percentage by weight of LLDPE 118N is
10%th, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%；The percentage by weight of LDPE 871SF
For 1%, 2%, 3%, 4%, 5%；The percentage by weight of LDPE 750TC is 1%, 2%, 3%, 4%, 5%.
The preparing raw material of the internal layer includes 20~40% LDPE TN00,5~15% MDPE 5401,20~40%
MLLDPE 1820D, 10~20% FB 2230,10~20% LLDPE 118N and 0.1~1% EAB-34S, it is above-mentioned
The sum of percentage by weight of raw material is 100%；Such as the percentage by weight of LDPE TN00 is 20%, 21%, 22%, 23%,
24%th, 25%, 26%, 27%, 28%, 29%, 30%, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%,
39%th, 40%；The percentage by weight of MDPE 5401 is 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%,
14%th, 15%.
Preferably, packaging film of the invention, by weight percentage, the outer layer weight account for the 22% of film gross weight, described
Middle layer weight accounts for the 56% of film gross weight, and the interior layer weight accounts for the 22% of film gross weight.
Preferably, by weight percentage, the preparing raw material of the outer layer include 25~35% LDPE TN00,32~
The LLDPE118N of 36% MLLDPE 1820D, 12~18% FB 2230 and 12~18%, the weight percent of above-mentioned raw materials
Than the sum of be 100%.
It is highly preferred that by weight percentage, the preparing raw material of the outer layer include 30% LDPE TN00,36%
The LLDPE 118N of MLLDPE 1820D, 16% FB 2230 and 18%.
Preferably, by weight percentage, the preparing raw material in the middle level include 15~25% FB 2310,15~
25% MLLDPE 2045G, 20~30% MLLDPE 1820D, 10~20% LLDPE118N, 2~4% LDPE
The sum of the LDPE 750TC of 871SF and 1~5%, percentage by weight of above-mentioned raw materials are 100%.
It is highly preferred that by weight percentage, the preparing raw material in the middle level includes 25% FB's 2310,20%
MLLDPE 2045G, 30% MLLDPE 1820D, 19.5% LLDPE 118N, 3.5% LDPE 871SF and 3%
LDPE 750TC。
Preferably, by weight percentage, the preparing raw material of the internal layer include 20~30% LDPE TN00,8~
MLLDPE 1820D, 12~18% FB2230,12~18% LLDPE 118N of 12% MDPE 5401,25~35%
With 0.2~0.6% EAB-34S, the sum of the percentage by weight of above-mentioned raw materials is 100%.
It is further preferred that by weight percentage, the preparing raw material of the internal layer include 28% LDPE TN00,
The LLDPE 118N and 0.5% of MLLDPE 1820D of 10% MDPE 5401,30%, 15% FB 2230,17%
EAB-34S。
The preparation method of the packaging film of the present invention, comprises the following steps,
1) each layer raw material is prepared：
A) preparation of outer layer raw material：By 20~40% LDPETN00,30~40% MLLDPE1820D, 10~20%
FB2230 and 10~20% LLDPE118N mixing after be sent into the first single screw extrusion machine mixing；
B) preparation of middle level raw material：By 10~30% FB2310,10~30% MLLDPE2045G, 20~40%
MLLDPE1820D, 10~20% LLDPE118N, the LDPE750TC of 1~5% LDPE871SF and 1~5% are sent after mixing
Enter the mixing of the second single screw extrusion machine；
C) preparation of internal layer raw material：By 10~30% FB2310,10~30% MLLDPE2045G, 20~40%
MLLDPE1820D, 10~20% LLDPE118N, the LDPE750TC of 1~5% LDPE871SF and 1~5% are sent after mixing
Enter the mixing of the 3rd single screw extrusion machine；
2) extrusion molding：By the internal layer raw material, middle level raw material and outer layer raw material of fluidised form shape be delivered at the same time it is three-layer co-extruded go out
The head of machine, three kinds of fluidised form raw materials it is described it is three-layer co-extruded go out machine in fusion extrusion, be cooled and shaped；
3) after the material splitting winding for obtaining step 2), the packaging film is obtained.
Wherein, in step 1), the extruder temperature of the screw extruder is 150~190 DEG C, such as the first Single screw extrusion
Machine, the second single screw extrusion machine, the extruder temperature of the 3rd single screw extrusion machine are 150 DEG C, 155 DEG C, 160 DEG C, 165 DEG C, 170
℃、175℃、180℃、185℃、190℃；The head temperature of the screw extruder is 170~200 DEG C, such as Screw Extrusion
The head temperature of machine is 170 DEG C, 175 DEG C, 180 DEG C, 185 DEG C, 190 DEG C, 195 DEG C, 200 DEG C；The rotating speed 40~100 of the screw rod
Rev/min, for example, screw rod rotating speed for 40 revs/min, 50 revs/min, 60 revs/min, 70 revs/min, 80 revs/min, 90
Rev/min, 100 revs/min；Extrude 30~50MPa of tonnage, such as extrusion tonnage for 30MPa, 35MPa, 40MPa,
45MPa、50MPa。
Wherein, in step 2), the cooling temperature be 15~20 DEG C, such as cooling temperature for 15 DEG C, 16 DEG C, 17 DEG C, 18
℃、19℃、20℃。
Compared with prior art, beneficial effects of the present invention are：
The packaging film of the present invention, outer layer employ LDPE with the material of LLDPE series as raw material with middle level, make to be made
Film there is good impact resistance, tear resistance, and performance change can not be produced in high temperature environments, will not discharged to human body
Harmful material；The packaging film of the present invention makes the processability of obtained packaging film by adjusting every layer of material composition and ratio
Can be good, there is good temperature variation resistant, shock resistance, it is indeformable to be resistant to more than 240 DEG C high temperature, tensile strength in more than 55MPa,
Elongation at break is more than 260%.
The preparation method of the packaging film of the present invention is simple, is particularly suitable for the preparation of petrochemical industry class packaging membrane material.
Embodiment
Technical scheme is further illustrated below by embodiment.
Unless specific instructions, various raw materials of the invention are commercially available buys, or is prepared according to the conventional method of this area
Obtain.
Embodiment 1
The packaging film of the present embodiment, including set gradually from outside to inside outer layer, middle level, internal layer three parts, the outer layer
Weight accounts for the 10% of film gross weight, and the middle layer weight accounts for the 60% of film gross weight, and the interior layer weight accounts for the 30% of film gross weight；
Wherein, by weight percentage, the preparing raw material of outer layer includes 20% LDPE TN00,40% MLLDPE
The LLDPE 118N of 1820D, 20% FB 2230 and 20%；
The preparing raw material in middle level includes MLLDPE 2045G, 40% MLLDPE of 15% FB 2310,25%
1820D, 10% LLDPE 118N, the LDPE750TC of 5% LDPE 871SF and 5%；
The preparing raw material of internal layer include 20% LDPE TN00,15% MDPE 5401,30% MLLDPE 1820D,
The EAB-34S of the LLDPE 118N and 1% of 15% FB 2230,19%.
The preparation method of the packaging film of the present invention, comprises the following steps,
1) each layer raw material is prepared：
A) preparation of outer layer raw material：By 20% LDPE TN00,40% MLLDPE 1820D, 20% 2230 and of FB
The mixing of the first single screw extrusion machine is sent into after 20% LLDPE 118N mixing；
B) preparation of middle level raw material：By MLLDPE 2045G, 40% MLLDPE of 15% FB 2310,25%
1820D, 10% LLDPE 118N, the LDPE750TC of 5% LDPE 871SF and 5% are sent into the second single screw rod after mixing and squeeze
Go out machine mixing；
C) preparation of internal layer raw material：By 20% LDPE TN00, the MLLDPE of 15% MDPE 5401,30%
1820D, 15% FB 2230,19% LLDPE 118N and 1% EAB-34S mixing after be sent into the 3rd single screw extrusion machine
It is kneaded；
2) extrusion molding：By the internal layer raw material, middle level raw material and outer layer raw material of fluidised form shape be delivered at the same time it is three-layer co-extruded go out
The head of machine, three kinds of fluidised form raw materials it is described it is three-layer co-extruded go out machine in fusion extrusion, be cooled and shaped；
3) after the material splitting winding for obtaining step 2), the packaging film is obtained.
Wherein, in step 1), the extruder temperature of the screw extruder is 150~190 DEG C, the machine of the screw extruder
Head temperature is 170~200 DEG C, 40~100 revs/min of the rotating speed of the screw rod, 30~50Mpa of extrusion tonnage.
Wherein, in step 2), the cooling temperature is 15~20 DEG C.
Embodiment 2
The packaging film of the present embodiment, including set gradually from outside to inside outer layer, middle level, internal layer three parts, the outer layer
Weight accounts for the 20% of film gross weight, and the middle layer weight accounts for the 70% of film gross weight, and the interior layer weight accounts for the 10% of film gross weight；
Wherein, by weight percentage, the preparing raw material of outer layer includes 30% LDPE TN00,35% MLLDPE
The LLDPE 118N of 1820D, 15% FB 2230 and 20%；
The preparing raw material in middle level includes MLLDPE 2045G, 38% MLLDPE of 30% FB 2310,12%
1820D, 14% LLDPE 118N, the LDPE750TC of 3% LDPE 871SF and 3%；
The preparing raw material of internal layer include 38% LDPE TN00,12% MDPE 5401,22% MLLDPE 1820D,
The EAB-34S of the LLDPE 118N and 0.5% of 15% FB 2230,12.5%.
The preparation method of the packaging film of the present embodiment is same as Example 1, and details are not described herein.
Embodiment 3
The packaging film of the present embodiment, including set gradually from outside to inside outer layer, middle level, internal layer three parts, the outer layer
Weight accounts for the 15% of film gross weight, and the middle layer weight accounts for the 65% of film gross weight, and the interior layer weight accounts for the 20% of film gross weight；
Wherein, by weight percentage, the preparing raw material of outer layer includes 35% LDPE TN00,36% MLLDPE
The LLDPE 118N of 1820D, 19% FB 2230 and 10%；
The preparing raw material in middle level includes MLLDPE 2045G, 30% MLLDPE of 24% FB 2310,22%
1820D, 20% LLDPE 118N, the LDPE750TC of 2% LDPE 871SF and 2%；
The preparing raw material of internal layer include 32% LDPE TN00,12% MDPE 5401,20% MLLDPE 1820D,
The EAB-34S of the LLDPE 118N and 1% of 16% FB 2230,19%.
The preparation method of the packaging film of the present embodiment is same as Example 1, and details are not described herein.
Embodiment 4
The packaging film of the present embodiment, including set gradually from outside to inside outer layer, middle level, internal layer three parts, the outer layer
Weight accounts for the 30% of film gross weight, and the middle layer weight accounts for the 50% of film gross weight, and the interior layer weight accounts for the 20% of film gross weight；
Wherein, by weight percentage, the preparing raw material of outer layer includes 30% LDPE TN00,35% MLLDPE
The LLDPE 118N of 1820D, 15% FB 2230 and 20%；
The preparing raw material in middle level includes MLLDPE 2045G, 40% MLLDPE of 12% FB 2310,20%
1820D, 18% LLDPE 118N, the LDPE750TC of 5% LDPE 871SF and 5%；
The preparing raw material of internal layer include 20% LDPE TN00,15% MDPE 5401,35% MLLDPE 1820D,
The EAB-34S of the LLDPE 118N and 1% of 13% FB 2230,16%.
The preparation method of the packaging film of the present embodiment is same as Example 1, and details are not described herein.
Embodiment 5
The packaging film of the present embodiment, including set gradually from outside to inside outer layer, middle level, internal layer three parts, the outer layer
Weight accounts for the 20% of film gross weight, and the middle layer weight accounts for the 70% of film gross weight, and the interior layer weight accounts for the 10% of film gross weight；
Wherein, by weight percentage, the preparing raw material of outer layer includes 20% LDPE TN00,40% MLLDPE
The LLDPE 118N of 1820D, 20% FB 2230 and 20%；
The preparing raw material in middle level includes MLLDPE 2045G, 40% MLLDPE of 15% FB 2310,25%
1820D, 10% LLDPE 118N, the LDPE750TC of 5% LDPE 871SF and 5%；
The preparing raw material of internal layer include 20% LDPE TN00,15% MDPE 5401,30% MLLDPE 1820D,
The EAB-34S of the LLDPE 118N and 1% of 15% FB 2230,19%.
The preparation method of the packaging film of the present embodiment is same as Example 1, and details are not described herein.
Packaging film made from embodiment 1-5 is tested for the property, it is indeformable to be resistant to more than 240 DEG C high temperature, tensile strength
In more than 55MPa, elongation at break is more than 260%.
The packaging film of the present invention makes the processing performance of obtained packaging film by adjusting every layer of material composition and ratio
It is good, there is good temperature variation resistant, shock resistance.The preparation method of the packaging film of the present invention is simple, is particularly suitable for petrochemical industry class bag
Fill the preparation of membrane material.
Applicant states that the present invention illustrates the detailed process equipment of the present invention and technological process by above-described embodiment,
But the invention is not limited in above-mentioned detailed process equipment and technological process, that is, it is above-mentioned detailed not mean that the present invention has to rely on
Process equipment and technological process could be implemented.Person of ordinary skill in the field it will be clearly understood that any improvement in the present invention,
The addition of equivalence replacement and auxiliary element to each raw material of product of the present invention, selection of concrete mode etc., all fall within the present invention's
Within protection domain and the open scope.
Claims (8)
1. a kind of packaging film, including set gradually from outside to inside outer layer, middle level, internal layer three parts, it is characterised in that by weight
Percentages, the outer layer weight account for the 10~30% of film gross weight, and the middle layer weight accounts for the 50~70% of film gross weight, it is described in
Layer weight accounts for the 10~30% of film gross weight；Wherein, by weight percentage,
The preparing raw material of the outer layer includes 20~40% LDPE TN00,30~40% MLLDPE 1820D, 10~20%
FB 2230 and 10~20% LLDPE 118N, the sum of the percentage by weight of above-mentioned raw materials is 100%；
The preparing raw material in the middle level includes MLLDPE 2045G of 10~30% FB 2310,10~30%, 20~40%
MLLDPE 1820D, 10~20% LLDPE 118N, the LDPE 750TC of 1~5% LDPE 871SF and 1~5%, it is above-mentioned
The sum of percentage by weight of raw material is 100%；
The preparing raw material of the internal layer includes 20~40% LDPE TN00,5~15% MDPE 5401,20~40%
MLLDPE 1820D, 10~20% FB 2230,10~20% LLDPE 118N and 0.1~1% EAB-34S, above-mentioned original
The sum of percentage by weight of material is 100%.
2. packaging film according to claim 1, it is characterised in that by weight percentage, by weight percentage, described
Outer layer weight accounts for the 22% of film gross weight, and the middle layer weight accounts for the 56% of film gross weight, and the interior layer weight accounts for the 22% of film gross weight.
3. packaging film according to claim 1 or 2, it is characterised in that by weight percentage, the preparation of the outer layer is former
Material includes 25~35% LDPE TN00,32~36% MLLDPE 1820D, 12~18% FB 2230 and 12~18%
LLDPE 118N, the sum of the percentage by weight of above-mentioned raw materials is 100%.
4. according to the packaging film described in one of claim 1-3, it is characterised in that by weight percentage, the system of the outer layer
Standby raw material includes 30% LDPE TN00,36% MLLDPE 1820D, the LLDPE 118N of 16% FB 2230 and 18%.
5. according to the packaging film described in one of claim 1-4, it is characterised in that by weight percentage, the system in the middle level
Standby MLLDPE 2045G of the raw material including 15~25% FB 2310,15~25%, 20~30% MLLDPE 1820D, 10
The LDPE 750TC of~20% LLDPE 118N, 2~4% LDPE 871SF and 1~5%, the weight percent of above-mentioned raw materials
Than the sum of be 100%.
6. according to the packaging film described in one of claim 1-5, it is characterised in that by weight percentage, the system in the middle level
Standby raw material includes MLLDPE 2045G, 30% MLLDPE 1820D, 19.5% LLDPE of 25% FB 2310,20%
The LDPE 750TC of 118N, 3.5% LDPE 871SF and 3%.
7. according to the packaging film described in one of claim 1-6, it is characterised in that by weight percentage, the system of the internal layer
Standby raw material include 20~30% LDPE TN00,8~12% MDPE 5401,25~35% MLLDPE 1820D, 12~
The EAB-34S of the LLDPE 118N and 0.2~0.6% of 18% FB 2230,12~18%, the percentage by weight of above-mentioned raw materials
The sum of be 100%.
8. according to the packaging film described in one of claim 1-7, it is characterised in that by weight percentage, the system of the internal layer
Standby raw material include 28% LDPE TN00, MLLDPE 1820D of 10% MDPE 5401,30%, 15% FB 2230,
The EAB-34S of 17% LLDPE 118N and 0.5%.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109094160A (en) * | 2018-10-29 | 2018-12-28 | 昆山金盟塑料薄膜有限公司 | A kind of FFS packaging film and preparation method thereof |
| CN111775526A (en) * | 2020-06-19 | 2020-10-16 | 重庆嘉峰彩印有限公司 | High-temperature water-boiling PE film and preparation method and application thereof |
| CN116252534A (en) * | 2023-02-28 | 2023-06-13 | 中天科盛科技股份有限公司 | High-load FFS packaging film and preparation method thereof |
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| CN102416744A (en) * | 2011-08-03 | 2012-04-18 | 大连方盛塑料有限公司 | Food packaging plastic substrate film and production technology thereof |
| CN102991074A (en) * | 2012-12-28 | 2013-03-27 | 昆山金盟塑料薄膜有限公司 | Thin film and production method thereof |
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| CN109094160A (en) * | 2018-10-29 | 2018-12-28 | 昆山金盟塑料薄膜有限公司 | A kind of FFS packaging film and preparation method thereof |
| CN111775526A (en) * | 2020-06-19 | 2020-10-16 | 重庆嘉峰彩印有限公司 | High-temperature water-boiling PE film and preparation method and application thereof |
| CN116252534A (en) * | 2023-02-28 | 2023-06-13 | 中天科盛科技股份有限公司 | High-load FFS packaging film and preparation method thereof |
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