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A packaging roll film with a locking structure and its application

A film rolling and locking technology, which is applied in the field of packaging materials, can solve the problems that the release part cannot be combined, the amount of adhesive used is reduced, and the structure of the separable adhesive tape is complicated.

Active Publication Date: 2021-09-10
上海骊塑商贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this technology, adhesives are used for bonding, so the demand for adhesives in the preparation process is relatively large, and there are harmful ingredients in the adhesives, which is not conducive to environmental protection
On the other hand, the structure of the separable adhesive tape is relatively complex, resulting in complex production process, low efficiency and high cost.
[0004] In view of the above problems, the present invention provides a packaging roll film with a locking structure, including a new type of locking structure, which has a simple structure, smooth separation, and low cost. At the same time, the heat sealing welding technology is used to replace the traditional adhesive bonding technology , reduce the amount of adhesive used, reduce environmental pollution, and operate more flexibly, avoid the problem that the adhesive bonding is affected by the environment and temperature, and also avoid the problem that the release part cannot be combined due to adhesive bonding

Method used

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  • A packaging roll film with a locking structure and its application
  • A packaging roll film with a locking structure and its application

Examples

Experimental program
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Effect test

preparation example Construction

[0075] In the present invention, the preparation method of the adhesive layer comprises the following steps: under the protection of an inert gas, mix the tackifying resin and the plasticizer, and heat to fully melt while stirring; then continue heating to 180-240°C, Add styrene-based thermoplastic elastomer, silicone resin and antioxidant, and continue to stir for 2-5 hours; stop stirring, cool down to room temperature, coat, and cure.

[0076] The second aspect of the present invention provides the application of the packaging roll film with a locking structure, which is applied in the field of agricultural products.

Embodiment 1

[0081] Embodiment 1 provides a packaging roll film with a locking structure, the packaging roll film is formed by connecting several packaging segments end-to-end through a locking structure 3; between the packaging segment and the locking structure 3 is Fixedly connected; the locking structure is made of a base material 31, an adhesive layer 32 and a release layer 33; the base material 31 and the release layer 33 are bonded and connected by the adhesive layer 32; in the locking structure 3, the base The lengths of the material 31 and the release layer 33 are not less than the length of the adhesive layer 32; the packaging section includes a non-adhesive area 1 and an adhesive area 2; the non-adhesive area 1 and the adhesive area 2 are fixedly connected; the adjacent Between the packaging sections, the adhesive zone 2 of the previous packaging section and the non-adhesive zone 1 of the subsequent packaging section are connected by a locking structure 3; 1 is a fixed connection...

Embodiment 2

[0090] The difference between embodiment 2 and embodiment 1 lies in the adhesive layer.

[0091] The raw materials for the preparation of the adhesive layer include at least the following components in parts by weight: 100 parts of styrene-based thermoplastic elastomer, 10 parts of silicone resin, 80 parts of tackifying resin, 30 parts of plasticizer, and 0.5 parts of antioxidant share.

[0092] The thermoplastic elastomer is a styrene-isoprene-styrene block copolymer, purchased from Guangzhou Qianyiyuan Synthetic Material Technology Co., Ltd., model 1125;

[0093] The silicone resin is bisphenol A modified polymethyl silicone resin; the bisphenol A epoxy resin is purchased from Angsen Building Materials Hebei Co., Ltd., brand E-35; the polymethyl silicone resin is purchased from Hubei New Sihai Chemical Co., Ltd., model SH-9503; the preparation method of the bisphenol A modified polymethyl silicone resin is: add polymethyl silicon to isopropanol at a temperature of 40°C, and...

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Abstract

The invention relates to the technical field of packaging materials, in particular to a packaging roll film with a locking structure and its application. A packaging roll film with a locking structure, the packaging roll film is formed by connecting several packaging segments end-to-end through a locking structure 3; the packaging segment and the locking structure 3 are fixedly connected; the The locking structure is composed of a base material 31 , an adhesive layer 32 and a release layer 33 ; the base material 31 and the release layer 33 are bonded and connected through the adhesive layer 32 . The invention provides a new type of locking structure, which has simple structure, smooth separation and low cost; at the same time, heat-sealing welding technology is used to replace the traditional adhesive bonding technology, which reduces the amount of adhesive used, reduces environmental pollution, and is more flexible in operation, avoiding Adhesive bonding is affected by the environment and temperature, and it also avoids the problem that the release part cannot be bonded due to adhesive bonding.

Description

technical field [0001] The invention relates to the technical field of packaging materials, in particular to a packaging roll film with a locking structure and its application. Background technique [0002] Conventional packaging operations utilize roll film from rolls to wrap items, the ends of which must be bonded to the underlying roll film layer in order to securely wrap the item. Each package section of web wound on a roll includes a non-adhesive web section and an adhesive web section. When packing, first wrap multiple turns with non-adhesive roll film section; then wrap multiple turns with sticky roll film section, the parts that are in contact with the sticky roll film section are sticky but separable; finally make the end of the sticky roll film section glued on the adhesive roll film segment underneath. Wrapping film is used in the field of crop harvesting material packaging. Automatic packaging machinery can be used to realize automatic packaging without manual ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J153/02C09J183/04C09J11/06C09J11/08B65D65/14B65D65/22
CPCB65D65/14B65D65/22C08L2205/035C08L2207/04C09J11/06C09J11/08C09J153/02C08L83/04C08L45/00C08L93/04C08K5/12C08K5/1345
Inventor 江韬
Owner 上海骊塑商贸有限公司