CN112553966A - Production method of double-aluminum composite lining paper - Google Patents

Production method of double-aluminum composite lining paper Download PDF

Info

Publication number
CN112553966A
CN112553966A CN202011405692.XA CN202011405692A CN112553966A CN 112553966 A CN112553966 A CN 112553966A CN 202011405692 A CN202011405692 A CN 202011405692A CN 112553966 A CN112553966 A CN 112553966A
Authority
CN
China
Prior art keywords
aluminum
film
paper
coating
double
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011405692.XA
Other languages
Chinese (zh)
Inventor
濮厚庆
俞娟
朱伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Gold Foil Packaging Material Group Co ltd
Nanjing Jinling Gold Foil Group Co ltd
Original Assignee
Nanjing Gold Foil Packaging Material Group Co ltd
Nanjing Jinling Gold Foil Group Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing Gold Foil Packaging Material Group Co ltd, Nanjing Jinling Gold Foil Group Co ltd filed Critical Nanjing Gold Foil Packaging Material Group Co ltd
Priority to CN202011405692.XA priority Critical patent/CN112553966A/en
Publication of CN112553966A publication Critical patent/CN112553966A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H27/00Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/10Packing paper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31FMECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F5/00Attaching together sheets, strips or webs; Reinforcing edges
    • B31F5/04Attaching together sheets, strips or webs; Reinforcing edges by exclusive use of adhesives

Abstract

The invention discloses a production method of double-aluminum composite lining paper. It comprises the following steps: 1) coating a PET raw film with a layer of transfer coating to form a coating film; 2) plating a layer of aluminum on the coating film under the vacuum condition to form an aluminum-plated film; 3) printing and coloring the aluminum-plated film, and printing the colored aluminum-plated film for later use; 4) compounding lining base paper with aluminum foil through compound glue to prepare aluminum foil paper; 5) then the side of the aluminum foil paper without the aluminum foil is compounded with the printed and colored aluminized film through a compound glue wet method; 6) directly peeling the PET base film from the compounded semi-finished product by a peeling machine to prepare double-layer aluminum paper, embossing and cutting into finished products. Therefore, compared with the prior art, the invention has the advantage of strong barrier property.

Description

Production method of double-aluminum composite lining paper
Technical Field
The invention relates to the technical field of stay wire packaging, in particular to a production method of double-aluminum composite lining paper.
Background
The lining paper for the cigarette is the paper which is lined in the small cigarette case and wraps the cigarette. The lining paper for the cigarette has certain functions of moisture resistance, oxygen resistance and the like on the cigarette, and prevents the cigarette from mildewing and fragrance from flowing. At present, the lining product which has good barrier property and good suitability for machining is generally demanded in the market because the base paper and the aluminum foil are compounded, the barrier property is limited, the base paper is used as the base color on the other side, and the lining product is not attractive enough.
Therefore, a new technical solution is needed.
Disclosure of Invention
The invention provides a production method of double-aluminum composite lining paper, which solves the problems of limited barrier property and poor machining adaptability of products produced by the prior art.
In order to achieve the purpose, the technical scheme of the invention is realized as follows: a production method of double-aluminum composite lining paper comprises the following steps:
1) coating a PET raw film with a layer of transfer coating to form a coating film;
2) plating a layer of aluminum on the coating film under the vacuum condition to form an aluminum-plated film;
3) printing and coloring the aluminum-plated film, and printing the colored aluminum-plated film for later use;
4) compounding lining base paper with aluminum foil through compound glue to prepare aluminum foil paper;
5) then the side of the aluminum foil paper without the aluminum foil is compounded with the printed and colored aluminized film through a compound glue wet method;
6) directly peeling the PET base film from the compounded semi-finished product by a peeling machine to prepare double-layer aluminum paper, embossing and cutting into finished products.
Preferably, in the step 1), the thickness of the PET original film is 10-20 μm, the surface tension is not less than 35dyn, the unreeling tension of the original film is 0.1 +/-0.05 MPa, the pressure of a coating roller is 0.2 +/-0.05 MPa, the machine speed of a coating machine is 100 +/-10 m/min, the viscosity of the coating is 14 +/-2S, the reeling tension of the coating film is 0.1 +/-0.05 MPa, and the amount of the coating dry glue is 1.1-1.2g/m2
Preferably, in the step 2), during aluminum plating, the unwinding tension of the film is 110 ± 20N, the winding tension is 50 ± 20N, the tension roller is 60 ± 20N, and the wire feeding speed is 750 ± 200 mm/min.
Preferably, in the step 3), the printing working temperature is 70 ℃ +/-20 ℃, the machine speed is 130 +/-10 m/min, and the color difference delta E ab is less than or equal to 1.5.
Preferably, in the step 4), during compounding, the unwinding tension of the paper is 10 to 30N, the unwinding tension of the aluminum foil is 10 to 24N, the winding tension is 18 to 50N, the compound glue and the aluminum foil need to pass through an oven with 4 temperature zones during compounding, the temperatures of the 4 temperature zones are 65 ℃ +/-20 ℃, 80 ℃ +/-20 ℃ and 65 ℃ +/-20 ℃ respectively according to the advancing direction of incoming materials, and the machine speed is 130 +/-10 m/min.
Preferably, the compound rubber in the step 4) is polyvinyl alcohol series latex, and the compound rubber in the step 5) is styrene-butadiene series latex.
Preferably, in the step 5), when the aluminum-foil paper and the aluminum-plated film are compounded, the unwinding tension of the aluminum-foil paper is 10-30N, the unwinding tension of the aluminum-plated film is 10-24N, the winding tension is 18-50N, the compound glue and the aluminum-plated film need to pass through an oven with 4 temperature zones in the same way during compounding, the temperatures of the 4 temperature zones are 65 ℃ plus or minus 20 ℃, 80 ℃ plus or minus 20 ℃ and 65 ℃ plus or minus 20 ℃ respectively according to the advancing direction of incoming materials, and the machine speed is 130 plus or minus 10 m/min.
Preferably, in the step 6), the stripping temperature of the film is divided into 2 temperature zones, which are all 70 +/-20 ℃ and the machine speed is 110 +/-10 m/min.
Compared with the prior art, the invention has the following advantages: the double-aluminum composite lining paper produced by the production method of the double-aluminum composite lining paper provided by the invention has better barrier property, so that moisture and aroma can be kept for a longer time; the double-layer aluminum can ensure that the product is not easy to curl, and the suitability for mounting is good; meanwhile, the peeled PET base film can be recycled, and the production cost is reduced. Therefore, compared with the prior art, the product produced by the invention has the advantages of better barrier property, difficult product curling and good suitability for machining.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a composite lining paper produced by the method for producing the double-aluminum composite lining paper of the invention.
In the figure: 1-PET original film, 2-transfer coating, 3-aluminized film, 4-coating printing layer, 5-composite glue and 6-aluminum foil paper.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Fig. 1 is a schematic structural diagram of a composite lining paper produced by a method for producing a double-aluminum composite lining paper according to the present invention.
Example one
A production method of double-aluminum composite lining paper comprises the following steps:
1) coating a layer of transfer coating 2 on a PET original film 1 with the thickness of 10 mu m and the surface tension of 35dyn on a coating machine to form a coating film, wherein the unreeling tension of the original film is 0.05MPa, the pressure of a coating roller is 0.15MPa, the machine speed of the coating machine is 90m/min, the viscosity of the coating is 12S, the reeling tension of the coating film is 0.05MPa, the coating dry glue amount is 1.1g/m2, and the coating film is dried by 4 temperature zones, namely 90 ℃, 110 ℃, 105 ℃ and 90 ℃.
2) And plating a layer of aluminum on the coating film by an aluminum plating machine under a vacuum condition to form an aluminum plating film 3, wherein the unreeling tension of the film is 90N, the reeling tension of the film is 30N, the tension roll is 40N, and the wire feeding speed is 550 mm/min.
3) Printing and coloring on the aluminizer at the printing temperature of 50 ℃, the printing speed of 120m/min and the color difference delta E ab of 1.3, and printing the colored aluminizer to form a coating printing layer 4 for later use.
4) The lining base paper is compounded with an aluminum foil through polyvinyl alcohol series latex to prepare an aluminum foil paper 6, during compounding, the paper unwinding tension is 10N, the aluminum foil unwinding tension is 10N, the winding tension is 18N, during compounding, the compound glue and the aluminum foil need to pass through an oven with 4 temperature zones, the oven is divided into 4 temperature zones, the temperatures of the 4 temperature zones are 45 ℃, 60 ℃ and 45 ℃ respectively according to the advancing direction of incoming materials, and the machine speed is 120 m/min.
5) And compounding the aluminum foil paper side without the aluminum foil with the colored aluminized film, wherein the compounding is carried out through styrene-butadiene series latex wet compounding, the unreeling tension of the aluminum foil paper is 10N, the unreeling tension of the aluminized film is 10N, the reeling tension is 18N, the compound glue 5 and the aluminized film need to pass through an oven with 4 temperature areas during compounding, the oven is divided into 4 temperature areas, the temperatures of the 4 temperature areas are 45 ℃, 60 ℃ and 45 ℃ respectively according to the advancing direction of incoming materials, and the machine speed is 120 m/min.
6) The PET base film is directly peeled off from the compounded semi-finished product by a peeling machine, the peeling temperature is divided into 2 temperature zones, the temperature zone is 50 ℃, the machine speed is 100m/min, double-layer aluminum paper is manufactured, embossing is carried out, the double-layer aluminum paper is cut into finished products, and meanwhile, the peeled PET base film can be recycled, so that the cost is reduced.
Example two
A production method of double-aluminum composite lining paper comprises the following steps:
1) coating a layer of transfer coating 2 on a PET original film 1 with the thickness of 15 mu m and the surface tension of 40dyn on a coating machine to form a coating film, wherein the unreeling tension of the original film is 0.1MPa, the pressure of a coating roller is 0.2MPa, the machine speed of the coating machine is 100m/min, the viscosity of the coating is 14S, the reeling tension of the coating film is 0.1MPa, the coating dry glue amount is 1.15g/m2, and the coating film is dried by 4 temperature zones, namely 100 ℃, 120 ℃, 115 ℃ and 100 ℃.
2) And plating a layer of aluminum on the coating film by an aluminum plating machine under a vacuum condition to form an aluminum plating film 3, wherein the unreeling tension of the film is 110N, the reeling tension is 50N, the tension roll is 60N, and the wire feeding speed is 750 mm/min.
3) Printing and coloring on the aluminizer, wherein the printing temperature is 70 ℃, the machine speed is 130m/min, the color difference delta E ab is 1.4, and the colored aluminizer is printed to form a coating printing layer 4 for later use.
4) The lining base paper is compounded with an aluminum foil through polyvinyl alcohol series latex to prepare an aluminum foil paper 6, during compounding, the paper unwinding tension is 20N, the aluminum foil unwinding tension is 17N, the winding tension is 34N, during compounding, the compound glue and the aluminum foil need to pass through an oven with 4 temperature zones, the oven is divided into 4 temperature zones, the temperatures of the 4 temperature zones are 65 ℃, 80 ℃ and 65 ℃ respectively according to the advancing direction of incoming materials, and the machine speed is 130 m/min.
5) And compounding the aluminum foil paper side without the aluminum foil with the colored aluminized film, wherein the compounding is carried out through styrene-butadiene series latex wet compounding, the unreeling tension of the aluminum foil paper is 20N, the unreeling tension of the aluminized film is 17N, the reeling tension is 34N, the compound glue 5 and the aluminized film need to pass through an oven with 4 temperature areas during compounding, the oven is divided into 4 temperature areas, the temperatures of the 4 temperature areas are 65 ℃, 80 ℃ and 65 ℃ respectively according to the advancing direction of incoming materials, and the machine speed is 130 m/min.
6) The PET base film is directly peeled off from the compounded semi-finished product by a peeling machine, the peeling temperature is divided into 2 temperature zones, the temperature zones are all 70 ℃, the machine speed is 110m/min, double-layer aluminum paper is manufactured, embossing is carried out, the double-layer aluminum paper is cut into finished products, and meanwhile, the peeled PET base film can be recycled, so that the cost is reduced.
EXAMPLE III
A production method of double-aluminum composite lining paper comprises the following steps:
1) coating a layer of transfer coating 2 on a PET original film 1 with the thickness of 20 mu m and the surface tension of 45dyn on a coating machine to form a coating film, wherein the unreeling tension of the original film is 0.15MPa, the pressure of a coating roller is 0.25MPa, the machine speed of the coating machine is 110m/min, the viscosity of the coating is 16S, the reeling tension of the coating film is 0.15MPa, the coating dry glue amount is 1.2g/m2, and the coating film is dried by 4 temperature zones, respectively at 110 ℃, 130 ℃, 125 ℃ and 110 ℃.
2) And plating a layer of aluminum on the coating film by an aluminum plating machine under a vacuum condition to form an aluminum plating film 3, wherein the unreeling tension of the film is 130N, the reeling tension is 70N, the tension roll is 80N, and the wire feeding speed is 950 mm/min.
3) Printing and coloring on the aluminizer at the printing temperature of 90 ℃, the printing speed of 140m/min and the color difference delta E ab of 1.5, and printing the colored aluminizer to form a coating printing layer 4 for later use.
4) The lining base paper is compounded with an aluminum foil through polyvinyl alcohol series latex to prepare an aluminum foil paper 6, during compounding, the paper unwinding tension is 30N, the aluminum foil unwinding tension is 24N, the winding tension is 50N, during compounding, the compound glue and the aluminum foil need to pass through an oven with 4 temperature zones, the oven is divided into 4 temperature zones, the temperatures of the 4 temperature zones are 85 ℃, 100 ℃ and 85 ℃ respectively according to the advancing direction of incoming materials, and the machine speed is 140 m/min.
5) And compounding the aluminum foil paper side without the aluminum foil with the colored aluminized film, wherein the compounding is carried out through styrene-butadiene series latex wet compounding, the unreeling tension of the aluminum foil paper is 30N, the unreeling tension of the aluminized film is 24N, the reeling tension is 50N, the compound glue 5 and the aluminized film need to pass through an oven with 4 temperature areas during compounding, the oven is divided into 4 temperature areas, the temperatures of the 4 temperature areas are 85 ℃, 100 ℃ and 85 ℃ respectively according to the advancing direction of incoming materials, and the machine speed is 140 m/min.
6) The PET base film is directly peeled off from the compounded semi-finished product by a peeling machine, the peeling temperature is divided into 2 temperature zones, the temperature zones are all 90 ℃, the machine speed is 120m/min, double-layer aluminum paper is manufactured, embossing is carried out, the double-layer aluminum paper is cut into finished products, and meanwhile, the peeled PET base film can be recycled, so that the cost is reduced.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A production method of double-aluminum composite lining paper is characterized in that: the method comprises the following steps:
1) coating a PET raw film with a layer of transfer coating to form a coating film;
2) plating a layer of aluminum on the coating film under the vacuum condition to form an aluminum-plated film;
3) printing and coloring the aluminum-plated film, and printing the colored aluminum-plated film for later use;
4) compounding lining base paper with aluminum foil through compound glue to prepare aluminum foil paper;
5) then the side of the aluminum foil paper without the aluminum foil is compounded with the printed and colored aluminized film through a compound glue wet method;
6) directly peeling the PET base film from the compounded semi-finished product by a peeling machine to prepare double-layer aluminum paper, embossing and cutting into finished products.
2. The method for producing the double aluminum composite lining paper as claimed in claim 1, wherein: in the step 1), the thickness of the PET original film is 10-20 μm, the surface tension is more than or equal to 35dyn, the unreeling tension of the original film is 0.1 +/-0.05 MPa, the pressure of a coating roller is 0.2 +/-0.05 MPa, the machine speed of a coating machine is 100 +/-10 m/min, the viscosity of the coating is 14 +/-2S, the reeling tension of the coating film is 0.1 +/-0.05 MPa, and the amount of the coating dry glue is 1.1-1.2g/m 2.
3. The method for producing the double aluminum composite lining paper as claimed in claim 1, wherein: in the step 2), during aluminum plating, the unwinding tension of the film is 110 +/-20N, the winding tension is 50 +/-20N, the tension roller is 60 +/-20N, and the wire feeding speed is 750 +/-200 mm/min.
4. The method for producing the double aluminum composite lining paper as claimed in claim 1, wherein: in the step 3), the printing working temperature is 70 +/-20 ℃, the machine speed is 130 +/-10 m/min, and the color difference delta E ab is less than or equal to 1.5.
5. The method for producing the double aluminum composite lining paper as claimed in claim 1, wherein: in the step 4), during compounding, the unwinding tension of the paper is 10-30N, the unwinding tension of the aluminum foil is 10-24N, the winding tension is 18-50N, the compound glue and the aluminum foil need to pass through an oven with 4 temperature zones during compounding, the temperatures of the 4 temperature zones are 65 +/-20 ℃, 80 +/-20 ℃ and 65 +/-20 ℃ respectively according to the advancing direction of incoming materials, and the machine speed is 130 +/-10 m/min.
6. The method for producing the double aluminum composite lining paper as claimed in claim 1, wherein: the composite adhesive in the step 4) is polyvinyl alcohol series latex, and the composite adhesive in the step 5) is butylbenzene series latex.
7. The method for producing the double aluminum composite lining paper as claimed in claim 1, wherein: in the step 5), when the aluminum foil paper and the aluminum-plated film are compounded, the unwinding tension of the aluminum foil paper is 10-30N, the unwinding tension of the aluminum-plated film is 10-24N, the winding tension is 18-50N, the compound glue and the aluminum-plated film are required to pass through an oven with 4 temperature zones in the same way during compounding, the temperatures of the 4 temperature zones are respectively 65 ℃ plus or minus 20 ℃, 80 ℃ plus or minus 20 ℃ and 65 ℃ plus or minus 20 ℃ according to the advancing direction of incoming materials, and the machine speed is 130 plus or minus 10 m/min.
8. The method for producing the double aluminum composite lining paper as claimed in claim 1, wherein: in the step 6), the stripping temperature of the film is divided into 2 temperature zones, which are all 70 +/-20 ℃ and the machine speed is 110 +/-10 m/min.
CN202011405692.XA 2020-12-02 2020-12-02 Production method of double-aluminum composite lining paper Pending CN112553966A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011405692.XA CN112553966A (en) 2020-12-02 2020-12-02 Production method of double-aluminum composite lining paper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011405692.XA CN112553966A (en) 2020-12-02 2020-12-02 Production method of double-aluminum composite lining paper

Publications (1)

Publication Number Publication Date
CN112553966A true CN112553966A (en) 2021-03-26

Family

ID=75047974

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011405692.XA Pending CN112553966A (en) 2020-12-02 2020-12-02 Production method of double-aluminum composite lining paper

Country Status (1)

Country Link
CN (1) CN112553966A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113481759A (en) * 2021-05-17 2021-10-08 南京金陵金箔集团股份有限公司 Production process of lining paper for packaging

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102896857A (en) * 2012-11-06 2013-01-30 云南创新新材料股份有限公司 Paper-based aluminum-plastic composite material and preparation method thereof
CN105178107A (en) * 2015-09-21 2015-12-23 滁州卷烟材料厂 Cigarette aluminum-foil paper with anti-counterfeiting label
CN105421153A (en) * 2015-11-26 2016-03-23 南京金陵金箔股份有限公司 Production technology of highlight aluminum foil lining paper
CN105544291A (en) * 2015-12-07 2016-05-04 湖北绿新环保包装科技有限公司 Production technology of colored aluminized transfer paper

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102896857A (en) * 2012-11-06 2013-01-30 云南创新新材料股份有限公司 Paper-based aluminum-plastic composite material and preparation method thereof
CN105178107A (en) * 2015-09-21 2015-12-23 滁州卷烟材料厂 Cigarette aluminum-foil paper with anti-counterfeiting label
CN105421153A (en) * 2015-11-26 2016-03-23 南京金陵金箔股份有限公司 Production technology of highlight aluminum foil lining paper
CN105544291A (en) * 2015-12-07 2016-05-04 湖北绿新环保包装科技有限公司 Production technology of colored aluminized transfer paper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113481759A (en) * 2021-05-17 2021-10-08 南京金陵金箔集团股份有限公司 Production process of lining paper for packaging

Similar Documents

Publication Publication Date Title
CN111636250B (en) Production process of environment-friendly tipping paper
JP5623509B2 (en) Packaging material with enhanced thermal insulation performance
CN102757738B (en) Biaxially-oriented tackified precoating film and production method thereof
CN102896857B (en) Paper-based aluminum-plastic composite material and preparation method thereof
CN106715110B (en) Method for laminating packaging material
CN112553966A (en) Production method of double-aluminum composite lining paper
CN102582189A (en) Shrinking-proof polyethylene terephthalate (PET) laser transfer base film and method for preparing same
CN202106639U (en) Dry type combination machine
CN102658701B (en) One-step molding compounding method for strip laser aluminum foil paper
CN104608444A (en) Laser glossy plastic flexible packaging making method
CN106956470A (en) A kind of preparation method of environmentally friendly double-layer corrugated cardboard
CN105926360B (en) The production method of epipodium water-retaining property transition card paper
CN101407264B (en) Manufacturing method of locating laser anti-counterfeiting compound film
EP2133196A1 (en) Barrier packaging material with discontinuous window in full paper surface
CN108396590B (en) Physical-barrier tipping paper for cigarettes and preparation method thereof
CN1789478A (en) Production process of vacuum aluminium-plated paper
CN102407632A (en) Novel wet paper towel bag composite film and preparation method thereof
CN202912881U (en) Two-way stretch tackifying precoating film
CN216688831U (en) Moisture-keeping and fragrance-keeping packaging material
CN210712381U (en) Radium-shine transfer composite aluminum foil slip sheet
CN213925662U (en) Dampproofing interior slip sheet and production facility thereof
CN116238229A (en) Production method of strip-shaped transparent lining paper and produced composite lining paper
CN216466713U (en) Degradable lining paper and processing equipment thereof
CN105856780A (en) Packaging paper board, packaging paper box and manufacturing method for outer surface layer of paper board
CN219095978U (en) Composite system of car cover film with air guide groove structure

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination