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A packaging film, a production line for packaging film and a production process using the production line

A packaging film and production line technology, which is applied in the field of packaging film, production process, and packaging film production line, can solve the problems of easy degumming, short product life, and low production efficiency, and achieve strong peeling strength and oxidation resistance. The effect of shortening the cycle and increasing production capacity

Active Publication Date: 2021-09-17
海宁卡洛包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The defects in the above-mentioned prior art are as follows: the LDPE bottom film layer and the PE protective film are bonded by conventional solvent-based glue. During the formation of the glue layer, the organic solvent in the glue needs to be volatilized, which has certain pollution to the environment and The total production time is prolonged, and the residual organic solvent in the glue is prone to degumming under the action of heat, which affects the quality of the product to the packaged items
In summary, the existing technology not only has low production efficiency, the production process is easy to pollute the environment, and the service life of the prepared product is short

Method used

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  • A packaging film, a production line for packaging film and a production process using the production line
  • A packaging film, a production line for packaging film and a production process using the production line
  • A packaging film, a production line for packaging film and a production process using the production line

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Effect test

Embodiment 1

[0054] refer to figure 2 , is a kind of packaging film disclosed by the present invention, comprising a bottom film layer 2, a pattern layer 11 is formed on the surface of the bottom film layer 2 by gravure printing, and a first photosensitive adhesive layer positioned on the top of the pattern layer 11 is formed by scraping on the surface of the bottom film layer 2 21, the surface of the first photosensitive adhesive layer 21 is formed with a light stabilizer layer 220 to improve the anti-oxidation performance; the surface of the light stabilizer layer 220 is formed with a second photosensitive adhesive layer 22; the second photosensitive adhesive layer 22 is compounded with a gas exchange control The porous composite membrane layer 23. The porous composite film layer 23 includes a porous film layer 231 composited with the second photosensitive adhesive layer 22 and a dense film layer 232 integrally formed on the surface of the porous film layer 231. The porous composite fil...

Embodiment 2

[0056] refer to image 3 with Figure 5 , a production line for packaging films, comprising a gravure printing device 3 for printing a pattern layer 11 on the surface of a base film layer 2, a first glue scraper for forming a first photosensitive adhesive layer 21 on the surface of a porous composite film layer 23 Coating device 4, the first glue scraping device 4 is connected with the light stabilizer adding device 5 that is used to form light stabilizer layer 220 on the surface of the first photosensitive glue layer 21; 220 surface forms the second glue scraping device 6 of the second photosensitive adhesive layer 22; The second glue scraping device 6 is connected with the composite device 7 that is used for composite porous composite film layer 23 and base film layer 2; Composite device 7 is connected with light The curing device 8, the photocuring device 8 makes the first photosensitive adhesive layer 21 and the second photosensitive adhesive layer 22 photocrosslinked and...

Embodiment 3

[0064] A production process utilizing a packaging film production line, comprising the following steps:

[0065] Step 1: Preparation of semi-finished product A, the roll shaft with the base film layer 2 fixed on the base film roll 312, first enters the first adjustment component 313 for unwinding, and then enters the printing mechanism 32 to gravure the required pattern on the base film layer 2 , then enter the drying chamber 331, dry for 10 minutes to form the pattern layer 11, and finally wind up the semi-finished product A by the winding mechanism 34;

[0066] Step 2: preparation of semi-finished product B;

[0067] Step 2.1: The roll shaft with the porous composite film layer 23 is fixed to the second unwinding mechanism 41, unwinds, and enters the first light-shielding shell 43 through the introduction roller 44, and the photosensitive glue in the glue storage bucket 401 passes through the glue dropper 404 Evenly drop on the surface of the porous composite membrane layer...

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Abstract

The invention discloses a packaging film, a production line of the packaging film and a production process using the production line. A packaging film, comprising a bottom film layer, the surface of the bottom film layer is sequentially formed with a pattern layer, a first photosensitive adhesive layer, a light stable layer, a second photosensitive adhesive layer and a porous composite film layer; the production line of the packaging film includes a concave Printing device, first glue scraping device, light stabilizer adding device, second glue scraping device, composite device, light curing device and finished film winding device. The product of the present invention has the advantages of strong peeling strength and anti-oxidation performance and long service life; the production line of the present invention has a short production cycle, continuous production, high production capacity and less solvent volatilization, and can be environmentally friendly and pollution-free production; The advanced production process preheats and pre-crosslinks the photosensitive adhesive to facilitate film compounding and improve product quality.

Description

technical field [0001] The invention relates to the field of packaging films, in particular to a packaging film, a production line for the packaging film and a production process using the production line. Background technique [0002] Food packaging film is made of food packaging film and is used to wrap the surface of food. Its main function is to isolate the entry of decomposing microorganisms, bacteria and foreign pollutants, and prevent and prolong food deterioration. Generally used packaging materials are LDPE, LLDPE, EVA, BOPP, cellulose film, edible film, etc. [0003] refer to figure 1 , an existing food packaging film, comprising an LDPE bottom film layer 1, a pattern layer 11 is printed on the surface of the LDPE bottom film layer 1; a glue layer 12 is compounded on the surface of the LDPE bottom film layer 1; a PE protective film 13 is adhered to the glue layer 12 The production process of the food packaging film is as follows: Step 1, the surface of the LDPE b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/06B32B27/28B32B27/36B32B33/00B32B37/06B32B37/12B41F9/00B41F19/00B41F23/04B41M1/10B41M7/00B65D65/40
CPCB32B27/06B32B27/286B32B27/365B32B33/00B32B37/06B32B37/12B32B37/1284B32B2037/1253B41F9/00B41F19/00B41F23/04B41M1/10B41M7/00B65D65/40
Inventor 陈吉钱明华
Owner 海宁卡洛包装材料有限公司
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