CN105780597A - Matte laser material for food packaging and production process thereof - Google Patents
Matte laser material for food packaging and production process thereof Download PDFInfo
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- CN105780597A CN105780597A CN201610158580.6A CN201610158580A CN105780597A CN 105780597 A CN105780597 A CN 105780597A CN 201610158580 A CN201610158580 A CN 201610158580A CN 105780597 A CN105780597 A CN 105780597A
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- layer
- dumb light
- radium
- laser
- shine material
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/10—Packing paper
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal 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
- B32B15/09—Layered products comprising a layer of metal comprising metal 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 comprising polyesters
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/12—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/30—Multi-ply
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
-
- 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
- B32B2439/00—Containers; Receptacles
- B32B2439/70—Food packaging
Abstract
The invention discloses a matte laser material for food packaging, comprising an outer protective layer, an aluminum foil layer, a lining paper layer, an oil-proof layer and a laser anti-fake layer. The laser anti-fake layer is attached to a smooth side of the aluminum foil layer, the outer protective layer is a transparent layer sprayed to the surface of the laser anti-fake layer, and the lining paper layer is attached to a matte side of the aluminum foil layer; the oil-proof layer is applied to the outer surface of the lining paper layer. The matte laser transfer paint is attached to the aluminum foil layer by means of film transfer to obtain the matte laser material, polylactic acid type degradable material is sprayed to the surface of the matte laser material to form the protective film, and wear resistance of the matte laser material is improved at the premise of satisfying green production; by using the waterborne matte laser transfer paint, toxic gas volatilization in the drying process of oily transfer paint is avoided, the obtained packaging material is suitable for packaging products suitable for people to directly eat, and the requirement for green production is met.
Description
Technical field
The invention belongs to field of packaging material, be specifically related to a kind of radium-shine material of the dumb light for packaging for foodstuff and production technology thereof.
Background technology
Laser anti-counterfeiting technology is to utilize LASER Light Source light wave amplitude information and corresponding information to be recorded within the extremely short time simultaneously, utilizes interference of light principle to reflect each particle of pie graph picture, is fabricated to unique false proof plate, thus reaching false proof purpose.
How laser anti-counterfeiting technology, for ensureing product quality, is applied to product and packs or directly apply on product by current each manufacturer, to prevent fake products from destroying corporate image.Especially for high-grade tobacco and wine packaging industry, false smoke, fake wine appearance not only damage the economic interests of businessman and consumer and also compromise the healthy of consumer, need to strictly stop.Laser anti-counterfeiting technology is applied on packaging material and is based primarily upon the operation principle that film shifts, and includes the operations such as plate-making, film forming, film transfer and stripping in whole work process, still suffers from the problems such as film transfer is thorough, stripping is unclean in whole operation；In addition, along with the aggravation of problem of environmental pollution, the environmental consciousness of people is more and more stronger, greenization for packaging material requires also more and more higher, therefore, ensure also to require while packaging material have security feature its can natural degradation performance, safeguard the sustainable development of the earth further.
Summary of the invention
Goal of the invention: present invention aim at for the deficiencies in the prior art, it is provided that the radium-shine material of dumb light for packaging for foodstuff of a kind of Stability Analysis of Structures, yield rate height and environmental protection and production technology thereof.
Technical scheme: a kind of radium-shine material of the dumb light for packaging for foodstuff of the present invention; including external protection, aluminium foil layer, lining paper layer, anti-oil reservoir and laser anti-counterfeiting layer; described laser anti-counterfeiting laminating invests on the bright finish of described aluminium foil layer; described external protection is clear layer; film is in described laser anti-counterfeiting layer surface, and described lining paper laminating invests in the matte surface of described aluminium foil layer；Described anti-oil reservoir is coated on the outer surface of described lining paper layer.
Described external protection is PLA/PBT composite layer or PLA/PEA composite layer or PLA/PBS composite layer.
Preferably, described anti-oil reservoir includes following component:
Present invention also offers the production technology of a kind of radium-shine material of the dumb light for packaging for foodstuff, comprise the following steps:
(1) coating in PET film by aqueous dumb light laser transfer coatings when coating speed is 12～25m/min, be then introduced in baking oven, dry at 160～185 DEG C, drying speed is 20～35m/min；
(2) adopt moulding press that the PET film of coating dumb light aqueous laser transfer coatings is embossed, obtain dumb light laser film；
(3) by obtaining aluminium-foil paper with lining paper layer compound after aluminium foil matte surface coated glue layer, anti-oil reservoir being coated the outer surface of described lining paper layer, coating speed is 12～20m/min；And dry at 170～185 DEG C, drying speed is 20～33m/min；
(4) aluminium-foil paper light surface layer is carried out by the mixed solvent of the second alcohol and water adopting volume ratio to be 3～8:1, coated glue layer after oven for drying；Aluminium foil after gluing is stood 2～5h；
(5) dumb light laser film being attached at the coated face of described aluminium foil, and carries out hot pressing compound under reheating pressure roller, hot pressing temperature is 160～210 DEG C, and pressure is 0.45～0.55MPa, and roller speed is 17～25m/min；It is quenched under 5～12 DEG C of conditions after hot pressing compound, and PET film is taken off simultaneously, obtain the radium-shine material head product of dumb light；
(6) film on the laser anti-counterfeiting layer of the radium-shine material head product of dumb light, encloses external protection coating, obtains the radium-shine material product of dumb light.
Preferably, described aqueous dumb light laser transfer coatings includes following components:
Preferably, described aqueous dumb light laser transfer coatings includes following components:
Preferably, glue-line described in step (4) is aqueous polyurethane glue-line or acrylic ester modified water-soluble polyurethane glue-line or Rhizoma amorphophalli powder-chitosan-polyvinyl alcohol blending glue-line or acrylic acid glue-line.
Preferably, the coating weight on described aluminium-foil paper of aqueous dumb light laser transfer coatings is 0.5～1.5g/m2。
Preferably, the coating weight of described anti-oil reservoir is 0.4～1.0g/m2。
Beneficial effect: dumb light laser transfer coatings is attached on aluminium-foil paper by film branch mode by the present invention, obtain the radium-shine material of dumb light, and in this polylactic acid-based degradation material of material surface film as protecting film, under meeting the premise that greenization produces, improve the wearability of material；Adopting aqueous dumb light laser transfer coatings in the present invention, it is to avoid the oiliness transfer coatings volatilization at drying course toxic gas, the packaging material obtained are applicable to the product that the packaging mankind directly eat, and meet greenization production requirement；Outer surface at lining paper layer is coated with the grease proofing layer of fabric aqueous, grease proofing effective, can be used for packing varieties of food items；The processing method yield rate of the present invention is high, is suitable to marketing.
Detailed description of the invention
Below by specific embodiment, technical solution of the present invention is described in detail, but protection scope of the present invention is not limited to described embodiment.
Embodiment 1: a kind of radium-shine material of the dumb light for packaging for foodstuff; including external protection, aluminium foil layer, lining paper layer, anti-oil reservoir and laser anti-counterfeiting layer; described laser anti-counterfeiting laminating invests on the bright finish of described aluminium foil layer; described external protection is clear layer; film is in described laser anti-counterfeiting layer surface, and described lining paper laminating invests in the matte surface of described aluminium foil layer；Described anti-oil reservoir is coated on the outer surface of described lining paper layer；Described external protection is PLA/PBT composite layer.
Described anti-oil reservoir includes following component:
The production technology of the above-mentioned radium-shine material of the dumb light for packaging for foodstuff, comprises the following steps:
(1) coating in PET film by aqueous dumb light laser transfer coatings when coating speed is 20m/min, be then introduced in baking oven, dry at 170 DEG C, drying speed is 30m/min；Coating weight is 1.2g/m2
(2) adopt moulding press that the PET film of coating dumb light aqueous laser transfer coatings is embossed, obtain dumb light laser film；
(3) by obtaining aluminium-foil paper with lining paper layer compound after aluminium foil matte surface coated glue layer, anti-oil reservoir being coated the outer surface of described lining paper layer, coating speed is 18m/min；And dry at 180 DEG C, drying speed is 25m/min；Coating weight is 0.8g/m2；
(4) aluminium-foil paper light surface layer is carried out by the mixed solvent of the second alcohol and water adopting volume ratio to be 6:1, coated glue layer after oven for drying；Aluminium foil after gluing is stood 3h；Described glue-line is acrylic ester modified water-soluble polyurethane glue-line；
(5) dumb light laser film being attached at the coated face of described aluminium foil, and carries out hot pressing compound under reheating pressure roller, hot pressing temperature is 180 DEG C, and pressure is 0.5MPa, and roller speed is 19m/min；It is quenched under 8 DEG C of conditions after hot pressing compound, and PET film is taken off simultaneously, obtain the radium-shine material head product of dumb light；
(6) film on the laser anti-counterfeiting layer of the radium-shine material head product of dumb light, encloses external protection coating, obtains the radium-shine material product of dumb light.
Described aqueous dumb light laser transfer coatings includes following components:
Embodiment 2: a kind of radium-shine material of the dumb light for packaging for foodstuff; including external protection, aluminium foil layer, lining paper layer, anti-oil reservoir and laser anti-counterfeiting layer; described laser anti-counterfeiting laminating invests on the bright finish of described aluminium foil layer; described external protection is clear layer; film is in described laser anti-counterfeiting layer surface, and described lining paper laminating invests in the matte surface of described aluminium foil layer；Described anti-oil reservoir is coated on the outer surface of described lining paper layer；Described external protection is PLA/PEA composite layer.
Described anti-oil reservoir includes following component:
Present invention also offers the production technology of a kind of radium-shine material of the dumb light for packaging for foodstuff, comprise the following steps:
(1) coating in PET film by aqueous dumb light laser transfer coatings when coating speed is 12m/min, be then introduced in baking oven, dry at 160 DEG C, drying speed is 20m/min；Coating weight is 0.5g/m2
(2) adopt moulding press that the PET film of coating dumb light aqueous laser transfer coatings is embossed, obtain dumb light laser film；
(3) by obtaining aluminium-foil paper with lining paper layer compound after aluminium foil matte surface coated glue layer, anti-oil reservoir being coated the outer surface of described lining paper layer, coating speed is 12m/min；And dry at 170 DEG C, drying speed is 20m/min；Coating weight is 0.4g/m2。
(4) aluminium-foil paper light surface layer is carried out by the mixed solvent of the second alcohol and water adopting volume ratio to be 3:1, coated glue layer after oven for drying；Aluminium foil after gluing is stood 2h；Described glue-line is aqueous polyurethane glue-line；
(5) dumb light laser film being attached at the coated face of described aluminium foil, and carries out hot pressing compound under reheating pressure roller, hot pressing temperature is 160 DEG C, and pressure is 0.45MPa, and roller speed is 17m/min；It is quenched under 5 DEG C of conditions after hot pressing compound, and PET film is taken off simultaneously, obtain the radium-shine material head product of dumb light；
(6) film on the laser anti-counterfeiting layer of the radium-shine material head product of dumb light, encloses external protection coating, obtains the radium-shine material product of dumb light.
Described aqueous dumb light laser transfer coatings includes following components:
Embodiment 3: a kind of radium-shine material of the dumb light for packaging for foodstuff; including external protection, aluminium foil layer, lining paper layer, anti-oil reservoir and laser anti-counterfeiting layer; described laser anti-counterfeiting laminating invests on the bright finish of described aluminium foil layer; described external protection is clear layer; film is in described laser anti-counterfeiting layer surface, and described lining paper laminating invests in the matte surface of described aluminium foil layer；Described anti-oil reservoir is coated on the outer surface of described lining paper layer；Described external protection is PLA/PBS composite layer.
Described anti-oil reservoir includes following component:
The production technology of the above-mentioned radium-shine material of the dumb light for packaging for foodstuff, comprises the following steps:
(1) coating in PET film by aqueous dumb light laser transfer coatings when coating speed is 25m/min, be then introduced in baking oven, dry at 185 DEG C, drying speed is 35m/min；Coating weight is 1.5g/m2；
(2) adopt moulding press that the PET film of coating dumb light aqueous laser transfer coatings is embossed, obtain dumb light laser film；
(3) by obtaining aluminium-foil paper with lining paper layer compound after aluminium foil matte surface coated glue layer, anti-oil reservoir being coated the outer surface of described lining paper layer, coating speed is 20m/min；And dry at 185 DEG C, drying speed is 33m/min；Coating weight is 1.0g/m2；
(4) aluminium-foil paper light surface layer is carried out by the mixed solvent of the second alcohol and water adopting volume ratio to be 8:1, coated glue layer after oven for drying；Aluminium foil after gluing is stood 5h；Described glue-line is Rhizoma amorphophalli powder-chitosan-polyvinyl alcohol blending glue-line；
(5) dumb light laser film being attached at the coated face of described aluminium foil, and carries out hot pressing compound under reheating pressure roller, hot pressing temperature is 210 DEG C, and pressure is 0.55MPa, and roller speed is 25m/min；It is quenched under 12 DEG C of conditions after hot pressing compound, and PET film is taken off simultaneously, obtain the radium-shine material head product of dumb light；
(6) film on the laser anti-counterfeiting layer of the radium-shine material head product of dumb light, encloses external protection coating, obtains the radium-shine material product of dumb light.
Preferably, described aqueous dumb light laser transfer coatings includes following components:
The degradation property comparative result of product of the present invention and existing product is in Table 1；
Other Performance comparision of product of the present invention and existing product are in Table 2；
Table 1 embodiment 1～3 and existing product degradation property testing result
Table 2 embodiment 1～3 and other performance test results of existing product
| Product | Existing product | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Stripping rate (%) | 90 | 99.5 | 98.9 | 99.3 |
| Yield rate (%) | 88 | 98.6 | 98.5 | 98.6 |
| Grease proofing grade | 7 | 12 | 10 | 11 |
Although as it has been described above, represented and described the present invention with reference to specific preferred embodiment, but it shall not be construed as the restriction to the present invention self.Under the spirit and scope of the present invention premise defined without departing from claims, it can be made in the form and details various change.
Claims (9)
1. the radium-shine material of dumb light for packaging for foodstuff; it is characterized in that: include external protection, aluminium foil layer, lining paper layer, anti-oil reservoir and laser anti-counterfeiting layer; described laser anti-counterfeiting laminating invests on the bright finish of described aluminium foil layer; described external protection is clear layer; film is in described laser anti-counterfeiting layer surface, and described lining paper laminating invests in the matte surface of described aluminium foil layer；Described anti-oil reservoir is coated on the outer surface of described lining paper layer.
2. the radium-shine material of the dumb light for packaging for foodstuff according to claim 1, it is characterised in that: described anti-oil reservoir includes following component:
In weight fraction.
3. the radium-shine material of the dumb light for packaging for foodstuff according to claim 1, it is characterised in that: described external protection is PLA/PBT composite layer or PLA/PEA composite layer or PLA/PBS composite layer.
4. the production technology of the radium-shine material of dumb light being used for packaging for foodstuff as claimed in claim 1, it is characterised in that comprise the following steps:
(1) coating in PET film by aqueous dumb light laser transfer coatings when coating speed is 12～25m/min, be then introduced in baking oven, dry at 160～185 DEG C, drying speed is 20～35m/min；
(2) adopt moulding press that the PET film of coating dumb light aqueous laser transfer coatings is embossed, obtain dumb light laser film；
(3) by obtaining aluminium-foil paper with lining paper layer compound after aluminium foil matte surface coated glue layer, anti-oil reservoir being coated the outer surface of described lining paper layer, coating speed is 12～20m/min；And dry at 170～185 DEG C, drying speed is 20～33m/min；
(4) aluminium-foil paper light surface layer is carried out by the mixed solvent of the second alcohol and water adopting volume ratio to be 3～8:1, coated glue layer after oven for drying；Aluminium foil after gluing is stood 2～5h；
(5) dumb light laser film being attached at the coated face of described aluminium foil, and carries out hot pressing compound under reheating pressure roller, hot pressing temperature is 160～210 DEG C, and pressure is 0.45～0.55MPa, and roller speed is 17～25m/min；It is quenched under 5～12 DEG C of conditions after hot pressing compound, and PET film is taken off simultaneously, obtain the radium-shine material head product of dumb light；
(6) film on the laser anti-counterfeiting layer of the radium-shine material head product of dumb light, encloses external protection coating, obtains the radium-shine material product of dumb light.
5. the production technology of the radium-shine material of the dumb light for packaging for foodstuff according to claim 4, it is characterised in that: described aqueous dumb light laser transfer coatings includes following components:
In weight fraction.
6. the production technology of the radium-shine material of the dumb light for packaging for foodstuff according to claim 5, it is characterised in that: described aqueous dumb light laser transfer coatings includes following components:
In weight fraction.
7. the production technology of the radium-shine material of the dumb light for cigarette pack according to claim 4, it is characterised in that: glue-line described in step (4) is aqueous polyurethane glue-line or acrylic ester modified water-soluble polyurethane glue-line or Rhizoma amorphophalli powder-chitosan-polyvinyl alcohol blending glue-line or acrylic acid glue-line.
8. the production technology of the radium-shine material of the dumb light for cigarette pack according to claim 4, it is characterised in that: the coating weight on described aluminium-foil paper of aqueous dumb light laser transfer coatings is 0.5～1.5g/m2。
9. the production technology of the radium-shine material of the dumb light for cigarette pack according to claim 4, it is characterised in that: the coating weight of described anti-oil reservoir is 0.4～1.0g/m2。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610158580.6A CN105780597B (en) | 2016-03-18 | 2016-03-18 | A kind of dumb light radium-shine material and its production technology for packaging for foodstuff |
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| CN201610158580.6A CN105780597B (en) | 2016-03-18 | 2016-03-18 | A kind of dumb light radium-shine material and its production technology for packaging for foodstuff |
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| CN105780597B CN105780597B (en) | 2017-11-24 |
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Cited By (6)
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| CN106496459A (en) * | 2016-10-14 | 2017-03-15 | 无锡三帝特种高分子材料有限公司 | A kind of bag for container film |
| CN108221492A (en) * | 2017-12-28 | 2018-06-29 | 安徽荣泽科技有限公司 | A kind of environment protecting paper aluminum compound packing material preparation method |
| CN113026419A (en) * | 2021-02-26 | 2021-06-25 | 上海紫江喷铝环保材料有限公司 | Environment-friendly holographic laser positioning packaging material printed in connection mode and manufacturing method thereof |
| CN113802414A (en) * | 2021-09-28 | 2021-12-17 | 南京万新薄膜制品有限公司 | Novel matte laser material and production process thereof |
| CN115027165A (en) * | 2022-06-17 | 2022-09-09 | 安徽顺彤包装材料有限公司 | Mildew-proof matte transfer paper and preparation process thereof |
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