CN117818068A - Preparation method of windowed food packaging bag and coiled material using soft tissue paper - Google Patents
Preparation method of windowed food packaging bag and coiled material using soft tissue paper Download PDFInfo
- Publication number
- CN117818068A CN117818068A CN202311756940.9A CN202311756940A CN117818068A CN 117818068 A CN117818068 A CN 117818068A CN 202311756940 A CN202311756940 A CN 202311756940A CN 117818068 A CN117818068 A CN 117818068A
- Authority
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- China
- Prior art keywords
- tissue paper
- tissue
- roll
- coiled material
- transparent
- Prior art date
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- 239000000463 material Substances 0.000 title claims abstract description 71
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 31
- 210000004872 soft tissue Anatomy 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 210000001519 tissue Anatomy 0.000 claims abstract description 166
- 239000003292 glue Substances 0.000 claims abstract description 32
- 238000001035 drying Methods 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 12
- 238000000576 coating method Methods 0.000 claims abstract description 12
- 238000003825 pressing Methods 0.000 claims abstract description 12
- 229920006284 nylon film Polymers 0.000 claims abstract description 10
- 238000005096 rolling process Methods 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 229920002635 polyurethane Polymers 0.000 claims description 10
- 239000004814 polyurethane Substances 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000123 paper Substances 0.000 description 120
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 239000002904 solvent Substances 0.000 description 10
- 238000012546 transfer Methods 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 230000037303 wrinkles Effects 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 2
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 239000011086 glassine Substances 0.000 description 2
- 239000002655 kraft paper Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000011111 cardboard Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/45—Joining of substantially the whole surface of the articles
-
- 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
- B29L2007/008—Wide strips, e.g. films, webs
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Abstract
The invention provides a preparation method of a windowed food packaging bag and a coiled material using soft tissue paper, which comprises the following steps: s1, coating a glue layer on the surface of a transparent coiled material roll-to-roll, and drying, wherein the transparent coiled material is a nylon film coiled material; s2, providing a tissue unreeling roller and a release layer unreeling roller, wherein the tissue unreeling roller comprises a first tissue roll and a second tissue roll which are arranged at intervals, and the first tissue roll and the second tissue roll are coaxial and are arranged at a preset distance at intervals; s3, conveying the transparent coiled material coated with the glue layer, the first tissue paper of the first tissue paper roll, the second tissue paper of the second tissue paper roll and the release layer of the release layer unreeling roller into a pressing roller for pressing, wherein the first tissue paper and the second tissue paper extend along the length direction of the transparent coiled material and are arranged on the surface of the glue layer at intervals, so that a transparent window is formed between the first tissue paper and the second tissue paper, and the release layer covers the surfaces of the first tissue paper, the second tissue paper and the transparent window; and S4, rolling the pressed material.
Description
Technical Field
The invention relates to a preparation method of a windowed food packaging bag and a coiled material using soft tissue paper.
Background
At present, the paper is widely applied to various packages all the time, and has the characteristics of good printing adaptability, good light shielding performance and the like. Meanwhile, the texture of the paper is better than that of plastic, and the paper has a natural high-end visual effect and hand feeling. The paper-containing package usually uses yellow kraft paper and white cardboard, has a monotonous sensory effect after many years of development, is opaque, cannot see the content therein, and is unfavorable for shelf display.
A small round hole (with the diameter of 2-3cm in general) is formed in the paper, so that the effect of local transparency of the package can be achieved, but the process of rounding the paper is complex, the yield is low, the round hole in the paper cannot be too large, the mechanical structure of the paper can be damaged by the too large round hole, and the paper is easy to break in the compounding process.
Disclosure of Invention
The invention provides a preparation method of a windowed food packaging bag and a coiled material using soft tissue paper, which can effectively solve the problems.
The invention is realized in the following way:
the invention further provides a preparation method of the windowed food packaging coiled material using the soft tissue paper, which comprises the following steps:
s1, coating a glue layer on the surface of a transparent coiled material roll-to-roll, and drying, wherein the transparent coiled material is a nylon film coiled material;
s2, providing a tissue unreeling roller and a release layer unreeling roller, wherein the tissue unreeling roller comprises a first tissue roll and a second tissue roll which are arranged at intervals, and the first tissue roll and the second tissue roll are coaxial and are arranged at preset intervals;
s3, conveying the transparent coiled material coated with the glue layer, the first tissue paper of the first tissue paper roll, the second tissue paper of the second tissue paper roll and the release layer of the release layer unreeling roller into a pressing roller for pressing, wherein the first tissue paper and the second tissue paper extend along the length direction of the transparent coiled material and are arranged on the surface of the glue layer at intervals, so that a transparent window is formed between the first tissue paper and the second tissue paper, and the release layer covers the surfaces of the first tissue paper, the second tissue paper and the transparent window;
and S4, rolling the pressed material.
The invention further provides a preparation method of the windowed food packaging bag using the soft tissue paper, which comprises the following steps:
s1, coating a glue layer on the surface of a transparent coiled material roll-to-roll, and drying, wherein the transparent coiled material is a nylon film coiled material;
s2, providing a tissue unreeling roller and a release layer unreeling roller, wherein the tissue unreeling roller comprises a first tissue roll and a second tissue roll which are arranged at intervals, and the first tissue roll and the second tissue roll are coaxial and are arranged at preset intervals;
s3, conveying the transparent coiled material coated with the glue layer, the first tissue paper of the first tissue paper roll, the second tissue paper roll of the second tissue paper roll and the release layer of the release layer unreeling roller into a pressing roller for pressing, wherein the first tissue paper and the second tissue paper extend along the length direction of the transparent coiled material and are arranged on the surface of the glue layer at intervals, so that a transparent window is formed between the first tissue paper and the second tissue paper, and the release layer covers the surfaces of the first tissue paper, the second tissue paper and the transparent window;
s4, rolling the pressed material to form a windowed food packaging coiled material;
s5, removing the release layer from the windowed food packaging coiled material, sequentially performing pattern printing, cutting according to the size, and finally heat-sealing
The beneficial effects of the invention are as follows: the invention provides a preparation method of a window food packaging bag and a coiled material using soft tissue paper, which provides a novel window opening process in the field of paper packaging, is especially suitable for the paper packaging requirement of large-area window opening (the window opening size can be more than 5cm x 5 cm), greatly solves the problem that the size of a small round hole is formed on paper in the prior art, is simpler in process than the prior art, and can greatly improve the yield. Furthermore, the preparation of the windowed food packaging bag and the coiled material using the soft tissue paper provided by the invention is realized through a roll-to-roll process, so that the production efficiency can be greatly improved, and the requirements of industrial rapid production can be completely met.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a method for preparing a windowed food packaging web using a soft tissue paper according to an embodiment of the present invention.
Fig. 2 is a schematic view of the structure of a fenestration food packaging web with a soft tissue paper provided in an embodiment of the present invention.
Fig. 3 is a photograph of a windowed food packaging web using a soft tissue paper according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In the description of the present invention, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1-3, an embodiment of the present invention provides a method for preparing a windowed food packaging web using a soft tissue paper, comprising the steps of:
s1, coating a glue layer 24 on the surface of a transparent coiled material 21 in a roll-to-roll manner, and drying, wherein the transparent coiled material 21 is a nylon film coiled material;
s2, providing a tissue paper unreeling roller 16 and a release layer 23 unreeling roller 17, wherein the tissue paper unreeling roller 16 comprises a first tissue paper roll and a second tissue paper roll which are arranged at intervals, and the first tissue paper roll and the second tissue paper roll are coaxial and are arranged at intervals by a preset distance;
s3, conveying the transparent coiled material 21 coated with the glue layer 24, the first tissue paper 22 of the first tissue paper roll, the second tissue paper 22 of the second tissue paper roll and the release layer 23 of the release layer 23 unreeling roller 17 to the laminating roller 15 for lamination, wherein the first tissue paper 22 and the second tissue paper 22 extend along the length direction of the transparent coiled material 21 and are arranged on the surface of the glue layer 24 at intervals, so that a transparent window is formed between the first tissue paper 22 and the second tissue paper 22, and the release layer 23 covers the first tissue paper 22, the second tissue paper 22 and the transparent window surface;
and S4, rolling the pressed material.
In step S1, the transparent roll 21 may be provided by a transparent roll unreeling roller 11, and the transparent roll 21 provided by the transparent roll unreeling roller 11 is coated with glue by a glue coating roller 12 and then dried in a drying device 13 by a first transfer roller 12 and a second transfer roller 14 which are symmetrically arranged. The first transfer roller 12 and the second transfer roller 14 are symmetrically arranged at two sides of the drying device 13. The coating pressure of the glue coating roller 12 is 4-5 bar, and the coating weight of the glue is 3.5-4.0 g/m 2 . The glue type is generally selected from acrylic glue. The thickness of the transparent coiled material 21 is 20-40 micrometers, and preferably, the thickness of the transparent coiled material 21 is 25-35 micrometers. In one embodiment, the transparent web 21 has a thickness of 30 microns. From the following componentsIn the packaging field, the thickness of the existing coiled material is generally only required to be equal to that of the nylon film coiled material. As a further improvement, the temperature in the drying device 13 is 60-80 ℃. In various embodiments, the temperature in the drying device 13 is 65 ℃, 70 ℃, 75 ℃, 80 ℃ respectively.
In the step S2, the first tissue roll and the second tissue roll are coaxial and are arranged at intervals of 2-10 cm. The specific setting distance can be selected according to actual needs, for example, 3cm/4cm/5cm/6cm/7cm/8cm/9cm, etc., and the distance of the interval setting determines the size of the later window, and the method is not limited.
As a further improvement, the first tissue paper 22 of the first tissue paper roll and the second tissue paper 22 of the second tissue paper roll are tissue papers with a weight of 25-50 grams, and the thickness of the first tissue paper 22 and the second tissue paper 22 is 25-50 micrometers. Preferably, the first tissue paper 22 in the first tissue paper roll and the second tissue paper 22 in the second tissue paper roll are tissue papers with a weight of 30-35 g, and the thickness of the first tissue paper 22 and the second tissue paper 22 is 30-35 microns, so that the thickness of the final product is controlled within a preset range. The tissue paper is selected because of its good softness, and is suitable for roll-to-roll production process. Other paperboard or kraft paper, while strong, is difficult to use widely in roll-to-roll production processes and can develop severe wrinkling. However, since the strength of tissue paper is low, it is necessary to control the tension of unreeling, printing, and reeling.
Further, the surface of the tissue paper is rough in the printing process, so that poor printing can be generated. As a further improvement, in step S2, further comprising:
and S21, forming a printing improvement layer on the surfaces of the first tissue paper 22 and the second tissue paper 22 so as to improve the poor printing of the first tissue paper and the second tissue paper. The method comprises the following specific steps: the polyurethane gloss oil layer is mixed with a solvent, and then transferred to the surfaces of the first and second tissues 22 and 22 through a printing screen roll (screen roll depth of 110 um), and the solvent is dried (60-100 ℃) to form the printing improvement layer on the surfaces of the first and second tissues 22 and 22. The proportion of the polyurethane gloss oil layer to the solvent is as follows: 1.5-2.5:1. The polyurethane gloss oil in the solution is too low in concentration, so that the concave part in the tissue paper cannot be completely filled, repeated coating is needed for many times, and paper wrinkles and breakage are easily caused; the polyurethane gloss oil in the solution has too high concentration, so that certain granular feel and rough feel can be generated, the subsequent printing is not facilitated, and the printing roller is easily blocked due to the too high concentration. Preferably, the ratio of the polyurethane gloss oil layer to the solvent is: 1.8-2.2:1. In one embodiment, the polyurethane gloss oil layer is present in a solvent ratio of: about 2:1. The kind of the solvent is not limited as long as the polyurethane gloss oil layer can be dissolved, for example, toluene, ethyl acetate, butanone, acetone, and the like. Preferably, in the embodiment of the invention, ethyl acetate is selected as the solvent, probably because the ethyl acetate has stronger affinity to cellulose in tissue paper, so that the wetting property of the cellulose can be effectively improved, and the printing performance of a product is further improved. Experiments prove that the ethyl acetate with the concentration of about 2:1 can not generate granular feel and coarse feel, can be completely filled in the concave part of tissue paper, and can form a smooth surface, thereby being beneficial to subsequent printing. Specifically, the surface roughness of common tissue paper is more than 1.5mm and about 2-3 mm, and the surface roughness of the tissue paper can reach about 0.5mm through the treatment, so that the high-precision printing requirement is met. In other embodiments, other proportions and other types of solvents may produce an acceptably slight particulate feel. According to international standard ISO 8791-4:2007, paper roughness is largely divided into the following three categories: high-roughness paper, i.e. with a roughness greater than 1.5mm, medium-roughness paper, i.e. with a roughness between 0.5mm and 1.5mm, and low-roughness paper, i.e. with a roughness less than 0.5 mm. In the scheme, the standard of the low-roughness paper can be achieved through the treatment, and the high-quality printing requirement can be completely met. The polyurethane gloss oil can be selected from MB-DU735 or UR-537, PUD-Y202, etc. Further, the drying temperature is preferably not too high, and the temperature of the drying solvent is preferably 70-80 ℃, and wrinkles and defects are easily generated even if the temperature is too high. In one embodiment, the temperature of the drying solvent is 75 ℃.
In the step S3, the pressing pressure is 4.0-5.0 bar, and the pressing temperature is 50-70 ℃.
Release layer 23 the release layer 23 of the unwind roll 17 may be of PE material, BOPP material or glassine. PE materials are too soft although having higher peel strength, and are easily wrinkled during the compounding process (obvious concave is generated in the middle after rolling, and obvious convex is generated at the joint). The BOPP film coiled material has general strength performance after being compounded, but does not generate wrinkles, and has good transparency. More preferably, glassine paper is selected which has good composite strength, stiffness and separation characteristics. The release layer 23 can prevent the glue layer 24 from leaking out of the splice gap during the hot pressing process, so that the film is adhered to the roll shaft.
Referring to fig. 2, an embodiment of the present invention further provides a windowed food packaging web using a soft tissue paper, including:
a transparent coiled material 21, wherein the transparent coiled material 21 is a nylon film coiled material;
a glue layer 24 disposed on the surface of the transparent roll 21;
the first tissue paper 22 and the second tissue paper 22 extend along the length direction of the transparent coiled material 21, and are arranged on the surface of the glue layer 24 at intervals, so that a transparent window is formed between the first tissue paper 22 and the second tissue paper 22;
and a release layer 23 covering the first tissue paper 22, the second tissue paper 22 and the transparent window surface.
The embodiment of the invention further provides a preparation method of the windowed food packaging bag using the soft tissue paper, which comprises the following steps:
s1, coating a glue layer 24 on the surface of a transparent coiled material 21 in a roll-to-roll manner, and drying, wherein the transparent coiled material 21 is a nylon film coiled material;
s2, providing a tissue paper unreeling roller 16 and a release layer 23 unreeling roller 17, wherein the tissue paper unreeling roller 16 comprises a first tissue paper roll and a second tissue paper roll which are arranged at intervals, and the first tissue paper roll and the second tissue paper roll are coaxial and are arranged at intervals by a preset distance;
s3, conveying the transparent coiled material 21 coated with the glue layer 24, the first tissue paper 22 of the first tissue paper roll, the second tissue paper 22 of the second tissue paper roll and the release layer 23 of the release layer 23 unreeling roller 17 to the laminating roller 15 for lamination, wherein the first tissue paper 22 and the second tissue paper 22 extend along the length direction of the transparent coiled material 21 and are arranged on the surface of the glue layer 24 at intervals, so that a transparent window is formed between the first tissue paper 22 and the second tissue paper 22, and the release layer 23 covers the first tissue paper 22, the second tissue paper 22 and the transparent window surface;
s4, rolling the pressed material to form a windowed food packaging coiled material;
s5, after the release layer 23 is removed from the windowed food packaging coiled material, pattern printing, cutting according to the size and finally heat-sealing are sequentially carried out.
The embodiment of the invention further provides a windowed food packaging bag using soft tissue paper, which comprises:
the transparent substrate is a nylon film coiled material, and the transparent substrate surrounds to form a bag-shaped structure;
a glue layer 24 disposed on the surface of the transparent substrate;
the first tissue paper 22 and the second tissue paper 22 extend along the length direction of the transparent base material, and are arranged on the surface of the glue layer 24 at intervals, so that a transparent window is formed between the first tissue paper 22 and the second tissue paper 22.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A method of making a fenestrated food packaging web using a soft tissue paper, comprising the steps of:
s1, coating a glue layer on the surface of a transparent coiled material roll-to-roll, and drying, wherein the transparent coiled material is a nylon film coiled material;
s2, providing a tissue unreeling roller and a release layer unreeling roller, wherein the tissue unreeling roller comprises a first tissue roll and a second tissue roll which are arranged at intervals, and the first tissue roll and the second tissue roll are coaxial and are arranged at preset intervals;
s3, conveying the transparent coiled material coated with the glue layer, the first tissue paper of the first tissue paper roll, the second tissue paper of the second tissue paper roll and the release layer of the release layer unreeling roller into a pressing roller for pressing, wherein the first tissue paper and the second tissue paper extend along the length direction of the transparent coiled material and are arranged on the surface of the glue layer at intervals, so that a transparent window is formed between the first tissue paper and the second tissue paper, and the release layer covers the surfaces of the first tissue paper, the second tissue paper and the transparent window;
and S4, rolling the pressed material.
2. The method for producing a fenestration food packaging web using a soft tissue paper according to claim 1, wherein the thickness of the transparent web and the release layer is 20 to 40 μm; the first tissue paper and the second tissue paper are tissue paper with the weight of 25-50 g, and the thickness of the first tissue paper and the second tissue paper is 25-50 microns.
3. A method of making a fenestration food packaging web employing a soft tissue paper of claim 1 wherein the surface of the first tissue paper and the second tissue paper remote from the transparent web further comprises a print improvement layer.
4. A method of making a fenestration product packaging web employing a soft tissue paper as defined in claim 3 wherein the print-improving layer is a polyurethane gloss oil layer.
5. The preparation method of the windowed food packaging bag using the soft tissue paper is characterized by comprising the following steps of:
s1, coating a glue layer on the surface of a transparent coiled material roll-to-roll, and drying, wherein the transparent coiled material is a nylon film coiled material;
s2, providing a tissue unreeling roller and a release layer unreeling roller, wherein the tissue unreeling roller comprises a first tissue roll and a second tissue roll which are arranged at intervals, and the first tissue roll and the second tissue roll are coaxial and are arranged at preset intervals;
s3, conveying the transparent coiled material coated with the glue layer, the first tissue paper of the first tissue paper roll, the second tissue paper roll of the second tissue paper roll and the release layer of the release layer unreeling roller into a pressing roller for pressing, wherein the first tissue paper and the second tissue paper extend along the length direction of the transparent coiled material and are arranged on the surface of the glue layer at intervals, so that a transparent window is formed between the first tissue paper and the second tissue paper, and the release layer covers the surfaces of the first tissue paper, the second tissue paper and the transparent window;
s4, rolling the pressed material to form a windowed food packaging coiled material;
s5, removing the release layer from the windowed food packaging coiled material, sequentially performing pattern printing, cutting according to the size, and finally heat-sealing.
6. The method for producing a windowed food packaging bag using a soft tissue paper according to claim 5, wherein the thickness of the transparent roll material and the release layer is 20 to 40 μm; the first tissue paper and the second tissue paper are tissue paper with the weight of 25-50 g, and the thickness of the first tissue paper and the second tissue paper is 25-50 microns.
7. The method of making a fenestration package employing a soft tissue of claim 5 wherein the surface of the first tissue and the second tissue remote from the transparent web further comprises a print enhancement layer.
8. The method of making a fenestration package using a soft tissue paper of claim 7 wherein the print improving layer is a polyurethane gloss oil layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311756940.9A CN117818068A (en) | 2023-12-20 | 2023-12-20 | Preparation method of windowed food packaging bag and coiled material using soft tissue paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311756940.9A CN117818068A (en) | 2023-12-20 | 2023-12-20 | Preparation method of windowed food packaging bag and coiled material using soft tissue paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117818068A true CN117818068A (en) | 2024-04-05 |
Family
ID=90503761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311756940.9A Pending CN117818068A (en) | 2023-12-20 | 2023-12-20 | Preparation method of windowed food packaging bag and coiled material using soft tissue paper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117818068A (en) |
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2023
- 2023-12-20 CN CN202311756940.9A patent/CN117818068A/en active Pending
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