CN111113836A - Preparation method of 105 ℃ double-sided low-temperature extinction heat-sealing film - Google Patents
Preparation method of 105 ℃ double-sided low-temperature extinction heat-sealing film Download PDFInfo
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- CN111113836A CN111113836A CN201911412027.0A CN201911412027A CN111113836A CN 111113836 A CN111113836 A CN 111113836A CN 201911412027 A CN201911412027 A CN 201911412027A CN 111113836 A CN111113836 A CN 111113836A
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- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
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- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/002—Combinations of extrusion moulding with other shaping operations combined with surface shaping
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/885—External treatment, e.g. by using air rings for cooling tubular films
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- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/023—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets using multilayered plates or sheets
-
- 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
-
- 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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- 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
-
- 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
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- 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
- B29L2007/00—Flat articles, e.g. films or sheets
-
- 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
- B29L2009/00—Layered products
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/03—3 layers
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of film production, in particular to a preparation method of a 105 ℃ double-sided low-temperature extinction heat-sealing film. The invention relates to a preparation method of a 105 ℃ double-sided low-temperature extinction heat-sealing film, which takes polypropylene, a low-temperature heat-sealing extinction material, an antistatic agent and the like as raw materials, adopts three-layer co-extrusion technology for production, and produces the 105 ℃ double-sided low-temperature extinction heat-sealing film by changing an extrusion production process.
Description
Technical Field
The invention relates to the technical field of film production, in particular to a preparation method of a 105 ℃ double-sided low-temperature extinction heat-sealing film.
Background
Plastic films, i.e., films made of polyvinyl chloride, polyethylene, polypropylene, polystyrene, and other resins, are used for packaging, and as film coatings. Plastic packages and plastic package products have a larger share in the market, and particularly, composite plastic flexible packages are widely applied to the fields of food, medicine, chemical industry and the like, wherein the proportion of the plastic packages is the largest, such as beverage packages, quick-frozen food packages, steamed and cooked food packages, fast food packages and the like, and the plastic packages and the plastic package products bring great convenience to the life of people.
With the progress of technology, biaxially oriented polypropylene (BOPP) films have been continuously developed from single films to various functional films, such as pearlized films, smoke films, laser films, matting films, heat-sealing films, etc., wherein new products are also continuously developed for heat-sealing films, and currently, bright heat-sealing films and matte heat-sealing films are commonly used, but the heat-sealing temperature of a common matte heat-sealing film is still high, and thus the requirement of rapid production of equipment cannot be met; meanwhile, the produced extinction heat-sealing film has poor physical stability, weak mechanical strength, poor air tightness and low haze, and can not meet the requirements of customers.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a preparation method of a 105 ℃ double-sided low-temperature extinction heat-sealing film, and aims to solve the technical defects.
The purpose of the invention can be realized by the following technical scheme:
a preparation method of a 105 ℃ double-sided low-temperature extinction heat-sealing film comprises the following steps:
s1, adopting a three-layer co-extrusion technology, sucking the raw materials of the upper layer, the lower layer and the core layer into a hopper through a material sucking fan, and then respectively and quantitatively feeding the raw materials into corresponding extruders, wherein the extrusion temperature of the upper layer extruder is 240-; after plasticizing, extruding the three layers together from a die head, wherein the extrusion temperature of the die head is 240-250 ℃;
s2, rapidly cooling and shaping the three layers of co-extruded melt into a thin film thick sheet through a chill roll and a water tank respectively;
s3, longitudinally stretching the film thick sheet, and transversely stretching to obtain a film crude product with uniform thickness; the longitudinal stretching comprises three stages of preheating, stretching and shaping, and the transverse stretching comprises four stages of preheating, stretching, shaping and cooling;
s4, respectively cooling the crude film by TDO, cooling by a traction roller and carrying out corona treatment, and finally winding the crude film on a large film roll;
and S5, aging the crude film on the large film roll for a period of time on an aging rack, and cutting by using a splitting machine to obtain the required 105 ℃ double-sided low-temperature extinction heat-sealing film.
Preferably, in the S1 step, the outlet temperature of the upper layer extruder is 230 ℃, the outlet temperature of the lower layer extruder is 230 ℃, and the outlet temperature of the core layer extruder is 250 ℃.
Preferably, in the S1 step, the extrusion temperature of the die is 245 ℃.
Preferably, in step S1, the raw materials of the upper layer and the lower layer are both low-temperature heat-seal matting materials, and the raw material of the middle core layer is polypropylene and antistatic agent.
Preferably, in step S2, the chilled roll has a temperature of 30-40 ℃ and the water bath has a temperature of 30-40 ℃.
Preferably, in step S2, the chilled roll has a temperature of 34 ℃ and the water bath has a temperature of 35 ℃.
Preferably, in the step S3, the temperature conditions of the stages of the longitudinal stretching are: preheating (upper 112 ℃, lower 112 ℃), stretching (upper 100 ℃, lower 100 ℃), setting (upper 120 ℃, lower 120 ℃).
Preferably, in the step S3, the temperature conditions of each stage of the transverse stretching are as follows: preheating (174-169 deg.C), stretching (156 deg.C), and shaping (167 deg.C).
Preferably, in the step S4, the cooling temperature of the drawing roll is less than 35 ℃.
Preferably, in step S5, the 105 ℃ double-sided low-temperature-extinction heat-seal film includes an upper layer, a lower layer, and an intermediate core layer, where the upper layer and the lower layer are respectively disposed on the upper surface and the lower surface of the core layer.
The invention has the beneficial effects that:
the invention relates to a preparation method of a 105 ℃ double-sided low-temperature extinction heat-sealing film, which takes polypropylene, a low-temperature heat-sealing extinction material, an antistatic agent and the like as raw materials, adopts three-layer co-extrusion technology for production, and produces the 105 ℃ double-sided low-temperature extinction heat-sealing film by changing an extrusion production process.
Detailed Description
To facilitate understanding of those skilled in the art, the present invention will be further described with reference to specific examples.
Example 1:
a preparation method of a 105 ℃ double-sided low-temperature extinction heat-sealing film comprises the following steps:
s1, adopting a three-layer co-extrusion technology, sucking the raw materials of the upper layer, the lower layer and the core layer into a hopper through a material sucking fan, and then respectively and quantitatively feeding the raw materials into corresponding extruders, wherein the extrusion temperature of the upper layer extruder is 230 ℃, the extrusion temperature of the lower layer extruder is 230 ℃, and the extrusion temperature of the middle core layer extruder is 250 ℃; after plasticizing, extruding the three layers together from a die head, wherein the extrusion temperature of the die head is 245 ℃; in the three-layer coextrusion, the raw materials of the upper layer and the lower layer are both low-temperature heat-sealing extinction materials, and the raw material of the middle core layer is polypropylene and an antistatic agent.
S2, rapidly cooling and shaping the three layers of co-extruded melt into a thin film thick sheet through a chill roll and a water tank respectively; wherein the chill roll temperature was 34 ℃ and the water bath temperature was 35 ℃.
S3, longitudinally stretching the film thick sheet, and transversely stretching to obtain a film crude product with uniform thickness; the longitudinal stretching comprises three stages of preheating, stretching and shaping, and the temperature conditions of each stage are as follows: preheating (upper 112 ℃, lower 112 ℃), stretching (upper 100 ℃, lower 100 ℃), and setting (upper 120 ℃, lower 120 ℃); the transverse stretching comprises four stages of preheating, stretching, shaping and cooling, and the temperature conditions of the stages are as follows: preheating (174-169 deg.C), stretching (156 deg.C), and shaping (167 deg.C).
And S4, cooling the crude film by TDO, cooling by a drawing roller and performing corona treatment, and finally winding the crude film on a large film roll, wherein the cooling temperature of the drawing roller is less than 35 ℃.
And S5, aging the crude film on the large film roll for a period of time on an aging rack, and cutting by using a splitting machine to obtain the required 105 ℃ double-sided low-temperature extinction heat-sealing film. The 105 ℃ double-sided low-temperature extinction heat-sealing film comprises an upper layer, a lower layer and a middle core layer, wherein the upper layer and the lower layer are respectively arranged on the upper surface and the lower surface of the core layer.
Example 2:
the preparation method of the double-sided low-temperature extinction heat-sealing film at the temperature of 105 ℃ has the same process steps as the example 1, and the difference is that: in the step S1, the extrusion temperature of the upper layer extruder is 220 ℃, the extrusion temperature of the lower layer extruder is 220 ℃, and the extrusion temperature of the middle core layer extruder is 260 ℃; the extrusion temperature of the die was 250 ℃. In step S2, the chilled roll was at a temperature of 30 ℃ and the water bath was at a temperature of 40 ℃.
Example 3:
the preparation method of the double-sided low-temperature extinction heat-sealing film at the temperature of 105 ℃ has the same process steps as the example 1, and the difference is that: in the step S1, the extrusion temperature of the upper layer extruder is 240 ℃, the extrusion temperature of the lower layer extruder is 240 ℃, and the extrusion temperature of the middle core layer extruder is 240 ℃; the extrusion temperature of the die was 240 ℃. In step S2, the chilled roll was at a temperature of 40 ℃ and the water bath was at a temperature of 30 ℃.
Example 4:
the preparation method of the double-sided low-temperature extinction heat-sealing film at the temperature of 105 ℃ has the same process steps as the example 1, and the difference is that: in the step S1, the extrusion temperature of the upper layer extruder is 225 ℃, the extrusion temperature of the lower layer extruder is 235 ℃, and the extrusion temperature of the middle core layer extruder is 255 ℃; the extrusion temperature of the die was 245 ℃. In step S2, the chilled roll temperature was 35 ℃ and the water bath temperature was 38 ℃.
Example 5:
the preparation method of the double-sided low-temperature extinction heat-sealing film at the temperature of 105 ℃ has the same process steps as the example 1, and the difference is that: in the step S1, the extrusion temperature of the upper layer extruder is 235 ℃, the extrusion temperature of the lower layer extruder is 235 ℃, and the extrusion temperature of the middle core layer extruder is 245 ℃; the extrusion temperature of the die was 240 ℃. In step S2, the chilled roll temperature was 32 ℃ and the water bath temperature was 35 ℃.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (10)
1. A preparation method of a 105 ℃ double-sided low-temperature extinction heat-sealing film is characterized by comprising the following steps:
s1, adopting a three-layer co-extrusion technology, sucking the raw materials of the upper layer, the lower layer and the core layer into a hopper through a material sucking fan, and then respectively and quantitatively feeding the raw materials into corresponding extruders, wherein the extrusion temperature of the upper layer extruder is 240-; after plasticizing, extruding the three layers together from a die head, wherein the extrusion temperature of the die head is 240-250 ℃;
s2, rapidly cooling and shaping the three layers of co-extruded melt into a thin film thick sheet through a chill roll and a water tank respectively;
s3, longitudinally stretching the film thick sheet, and transversely stretching to obtain a film crude product with uniform thickness; the longitudinal stretching comprises three stages of preheating, stretching and shaping, and the transverse stretching comprises four stages of preheating, stretching, shaping and cooling;
s4, respectively cooling the crude film by TDO, cooling by a traction roller and carrying out corona treatment, and finally winding the crude film on a large film roll;
and S5, aging the crude film on the large film roll for a period of time on an aging rack, and cutting by using a splitting machine to obtain the required 105 ℃ double-sided low-temperature extinction heat-sealing film.
2. The method for preparing the 105 ℃ double-sided low-temperature-extinction heat-sealing film according to claim 1, wherein in the step S1, the outlet temperature of an upper layer extruder is 230 ℃, the outlet temperature of a lower layer extruder is 230 ℃, and the outlet temperature of a core layer extruder is 250 ℃.
3. The method for preparing the 105 ℃ double-sided low-temperature-extinction heat-sealing film according to claim 1, wherein in the step S1, the extrusion temperature of the die head is 245 ℃.
4. The method for preparing a double-sided low-temperature-extinction heat-sealing film at 105 ℃ as claimed in claim 1, wherein in step S1, the raw materials of the upper layer and the lower layer are both low-temperature heat-sealing extinction materials, and the raw material of the middle core layer is polypropylene and an antistatic agent.
5. The method for preparing the 105 ℃ double-sided low-temperature-extinction heat-sealing film according to claim 1, wherein in the step S2, the temperature of the chill roll is 30-40 ℃, and the temperature of the water tank is 30-40 ℃.
6. The method for preparing the 105 ℃ double-sided low-temperature-extinction heat-sealing film according to claim 1, wherein in the step S2, the temperature of the chill roll is 34 ℃ and the temperature of the water tank is 35 ℃.
7. The method for preparing a 105 ℃ double-sided low-temperature-extinction heat-sealing film according to claim 1, wherein in the step S3, the temperature conditions of each stage of longitudinal stretching are as follows: preheating (upper 112 ℃, lower 112 ℃), stretching (upper 100 ℃, lower 100 ℃), setting (upper 120 ℃, lower 120 ℃).
8. The method for preparing a 105 ℃ double-sided low-temperature-extinction heat-sealing film according to claim 1, wherein in the step S3, the temperature conditions of each stage of transverse stretching are as follows: preheating (174-169 deg.C), stretching (156 deg.C), and shaping (167 deg.C).
9. The method for preparing a 105 ℃ double-sided low-temperature-extinction heat-seal film according to claim 1, wherein in the step S4, the cooling temperature of the drawing roll is less than 35 ℃.
10. The method for preparing a 105 ℃ double-sided low-temperature-extinction heat-sealing film according to claim 1, wherein in the step S5, the 105 ℃ double-sided low-temperature-extinction heat-sealing film comprises an upper layer, a lower layer and a middle core layer, and the upper layer and the lower layer are respectively arranged on the upper surface and the lower surface of the core layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911412027.0A CN111113836A (en) | 2019-12-31 | 2019-12-31 | Preparation method of 105 ℃ double-sided low-temperature extinction heat-sealing film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911412027.0A CN111113836A (en) | 2019-12-31 | 2019-12-31 | Preparation method of 105 ℃ double-sided low-temperature extinction heat-sealing film |
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| CN111113836A true CN111113836A (en) | 2020-05-08 |
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| CN201911412027.0A Pending CN111113836A (en) | 2019-12-31 | 2019-12-31 | Preparation method of 105 ℃ double-sided low-temperature extinction heat-sealing film |
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| JPH09164640A (en) * | 1995-12-19 | 1997-06-24 | Tonen Chem Corp | Polypropylene composite film for packing |
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| CN101537913A (en) * | 2009-04-27 | 2009-09-23 | 江阴中达软塑新材料有限公司 | Packaging film for two-way stretch polypropylene low temperature self-constriction cigarette and production method thereof |
| CN202213259U (en) * | 2011-08-30 | 2012-05-09 | 浙江凯利包装材料有限公司 | Extinction type bidirectional stretching polypropylene film with double surfaces capable of being in hot sealing |
| CN105619990A (en) * | 2015-12-30 | 2016-06-01 | 江阴中达软塑新材料股份有限公司 | Low-temperature heat-seal shrinking packaging film used for cigarettes and manufacturing method thereof |
| CN107791536A (en) * | 2017-10-31 | 2018-03-13 | 马迎春 | A kind of preparation technology of plastic sheeting |
| CN108724774A (en) * | 2018-06-05 | 2018-11-02 | 安徽金田高新材料股份有限公司 | A kind of stealth sizing material two-sided matt film and its preparation process |
| CN109291589A (en) * | 2018-09-03 | 2019-02-01 | 安徽金田高新材料股份有限公司 | A kind of two-sided matt film and preparation method thereof |
| CN109318556A (en) * | 2018-09-13 | 2019-02-12 | 安徽金田高新材料股份有限公司 | A kind of electronic protective film and preparation method thereof |
| CN109968772A (en) * | 2019-04-16 | 2019-07-05 | 安徽双津实业有限公司 | A kind of PP/PE co-extrusion high-isolation film and preparation method thereof |
-
2019
- 2019-12-31 CN CN201911412027.0A patent/CN111113836A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09164640A (en) * | 1995-12-19 | 1997-06-24 | Tonen Chem Corp | Polypropylene composite film for packing |
| CN101362388A (en) * | 2007-08-10 | 2009-02-11 | 泉州利昌塑胶有限公司 | Biaxial stretching polypropylene film and preparation method thereof |
| CN101537913A (en) * | 2009-04-27 | 2009-09-23 | 江阴中达软塑新材料有限公司 | Packaging film for two-way stretch polypropylene low temperature self-constriction cigarette and production method thereof |
| CN202213259U (en) * | 2011-08-30 | 2012-05-09 | 浙江凯利包装材料有限公司 | Extinction type bidirectional stretching polypropylene film with double surfaces capable of being in hot sealing |
| CN105619990A (en) * | 2015-12-30 | 2016-06-01 | 江阴中达软塑新材料股份有限公司 | Low-temperature heat-seal shrinking packaging film used for cigarettes and manufacturing method thereof |
| CN107791536A (en) * | 2017-10-31 | 2018-03-13 | 马迎春 | A kind of preparation technology of plastic sheeting |
| CN108724774A (en) * | 2018-06-05 | 2018-11-02 | 安徽金田高新材料股份有限公司 | A kind of stealth sizing material two-sided matt film and its preparation process |
| CN109291589A (en) * | 2018-09-03 | 2019-02-01 | 安徽金田高新材料股份有限公司 | A kind of two-sided matt film and preparation method thereof |
| CN109318556A (en) * | 2018-09-13 | 2019-02-12 | 安徽金田高新材料股份有限公司 | A kind of electronic protective film and preparation method thereof |
| CN109968772A (en) * | 2019-04-16 | 2019-07-05 | 安徽双津实业有限公司 | A kind of PP/PE co-extrusion high-isolation film and preparation method thereof |
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Application publication date: 20200508 |