Paper and plastic composite light packaging film, manufacturing method thereof, and tag bag

A paper-plastic composite and manufacturing method technology, applied in the field of flexible packaging, can solve the problems of difficult packaging recycling, overly gorgeous decoration, and many packaging consumables, and achieve the effect of ensuring repeated use characteristics, high stiffness visual effects, and light and thin film thickness

Inactive Publication Date: 2017-02-01
浙江粤海包装新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In social life, packaging brings convenience to the transportation, sales and use of products, but excessive packaging is also a problem that often arises in the production and business activities of enterprises: too many packaging consumables, too heavy, too large, and too expensive Existence of excessive packaging problems such as high q

Method used

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  • Paper and plastic composite light packaging film, manufacturing method thereof, and tag bag
  • Paper and plastic composite light packaging film, manufacturing method thereof, and tag bag
  • Paper and plastic composite light packaging film, manufacturing method thereof, and tag bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A paper-plastic composite light packaging film, such as figure 1 As shown, it includes an outer layer 1, an intermediate layer 2 and an inner layer 3 from the outside to the inside; the outer layer 1 is a BOPP film layer with a thickness of 15-20um, and the middle layer 2 has a grammage of 24-35g / ㎡ of kraft paper, the inner layer 3 is a PP film layer with a thickness of 15-25um.

[0037] As a preferred solution, the outer layer 1 is a BOPP film layer with a thickness of 18um, the middle layer 2 is kraft paper with a grammage of 30g / ㎡, and the inner layer 3 is a PP film layer with a thickness of 20um.

[0038] Aiming at the requirements of lightweight hygiene products for packaging materials and packaging structure, this patent adopts low-weight kraft paper with a grammage of 24-35g / ㎡ and ultra-light plastic film to compound, and designs a paper-plastic composite light packaging film. The film meets the packaging requirements of hygiene products in terms of strength, b...

Embodiment 2

[0040] A kind of manufacture method of paper-plastic composite light packaging film in embodiment 1, comprises the following steps:

[0041]S1: Prepare kraft paper and BOPP film; S2: Use the extrusion casting process to hot-melt coat the PP layer on one side of the kraft paper to obtain the composite structure of the middle layer and the inner layer; the main parameters of the extrusion casting process As follows: the temperature of the extrusion casting die is 300-320°C, and the winding and unwinding speed is 150-160m / min; after the kraft paper is hot-melt coated with PP, a cooling roll with a circulating cooling water at a temperature of 20°C±2°C is used inside Extruding and cooling to shape; S3: Bonding the BOPP film to the other side of the kraft paper by a composite process to obtain a paper-plastic composite light packaging film. In step S1, patterns are printed on the BOPP film, so as to improve the aesthetics.

[0042] In step S3 of this embodiment, the adhesive used ...

Embodiment 3

[0044] A label bag such as Figure 2 to Figure 4 As shown, the bag body 4 is included, and the bag body is made of the paper-plastic composite light packaging film described in Embodiment 1, and an unsealing incision 41 is opened on the surface of the bag body 4, and the corresponding part of the bag body 4 is There is a sealing label 5 covering the unsealing cut 41 , and the inside of the sealing label 5 has a removable adhesive layer 6 adhered to the surface of the bag body 4 . The selection of the removable adhesive layer 6 can realize the sealing and repeated opening of the bag body 4 .

[0045] Further, the shape of the unsealing incision 41 is arc-shaped, and the inner part of the arc-shaped unsealing incision 41 forms a cover sheet 7 that can be folded outward, and the sealing label 5 fully covers the cover sheet 7, so The middle part of the sealing label 5 is bonded to the cover sheet 7, and the peripheral part of the sealing label 5 is bonded to the bag body 4. Adopt...

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Abstract

The invention discloses a paper and plastic composite light packaging film. The paper and plastic composite light packaging film sequentially comprises an outer layer, a middle layer and an inner layer from outside to inside; and the outer layer is a BOPP film with the thickness of 15-20 [mu]m, the middle layer is brown paper with the gram weight of 24-35 g/m<2>, and the inner layer is a PP film with the thickness of 15-25 [mu]m. A manufacturing method of the paper and plastic composite light packaging film comprises the following steps: 1, producing the brown paper and the BOPP film; 2, carrying out hot melt coating on one side of the brown paper with the PP film through an extrusion tape casting technology in order to obtain a middle layer and inner layer composite structure; and 3, bonding the BOPP film with the other side of the brown paper through a composite process in order to obtain the paper and plastic composite light packaging film. The invention also discloses a tag bag. The surface of a bag body made of the paper and plastic composite light packaging film is provided with an unpacking notch, the corresponding position of the bag body is provided with a seal label used for covering the unpacking notch, and the inner side of the seal label is provided with a removable glue layer which can be bonded to the surface of the bag body.

Description

technical field [0001] The invention relates to a paper-plastic composite light packaging film, a manufacturing method thereof and a label bag, belonging to the technical field of flexible packaging. Background technique [0002] The natural functions of packaging include: protection of the contents, convenient use, convenient storage and display, and convenient recycling. In social life, packaging brings convenience to the transportation, sales and use of products, but excessive packaging is also a problem that often arises in the production and business activities of enterprises: too many packaging consumables, too heavy, too large, and too expensive The existence of excessive packaging problems such as high quality and overly ornate decoration, on the one hand, causes a waste of resources, on the other hand, it also makes it difficult to recycle the overused packaging, which is harmful to the environment. [0003] Taking the labeling bag as an example, the labeling bag i...

Claims

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Application Information

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IPC IPC(8): B32B29/06B32B7/12B32B27/10B32B27/32B65D30/08B65D33/16
CPCB32B29/06B32B7/12B32B27/10B32B27/32B32B2250/02B32B2255/12B32B2255/26B32B2307/558B32B2307/718B32B2439/62B65D31/02B65D33/16
Inventor 朱国勋叶丽胡晓冬
Owner 浙江粤海包装新材料有限公司
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