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Hot-melt pressure-sensitive adhesive for cotton packaging film and preparation method of hot-melt pressure-sensitive adhesive

A technology for hot-melt pressure-sensitive adhesives and films, applied in the direction of pressure-sensitive films/sheets, adhesives, heat-activated films/sheets, etc., can solve the problem of large temperature difference between day and night, weather resistance performance needs to be improved, and easy occurrence of bonding at the packaging film Displacement and warping and other problems, to achieve the effect of not easy displacement and warping, strong peeling performance, and excellent application effect

Pending Publication Date: 2022-03-15
SHANGHAI YONGGUAN ADHESIVE PROD CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]Xinjiang is the most suitable place for growing cotton in my country, but the cotton production base in Xinjiang is 40-50°C during the day, the intensity of ultraviolet rays is high, and the temperature difference between day and night is large, and it can reach minus 20 at night. ℃, in this special environment, it is difficult for the existing hot-melt pressure-sensitive adhesive on the packaging film to maintain good and stable high and low temperature aging resistance and ultraviolet aging resistance at the same time, and it is easy to make the bonding of the packaging film easy Displacement and warping
[0005] In view of the related technologies mentioned above, the inventor believes that the weather resistance of the hot-melt pressure-sensitive adhesive for cotton packaging film needs to be improved in practical applications

Method used

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  • Hot-melt pressure-sensitive adhesive for cotton packaging film and preparation method of hot-melt pressure-sensitive adhesive
  • Hot-melt pressure-sensitive adhesive for cotton packaging film and preparation method of hot-melt pressure-sensitive adhesive
  • Hot-melt pressure-sensitive adhesive for cotton packaging film and preparation method of hot-melt pressure-sensitive adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A hot-melt pressure-sensitive adhesive for cotton packaging film, each component and its corresponding weight are shown in Table 1, and prepared by the following steps:

[0042] (1) Prepare raw materials comprising thermoplastic elastomer, tackifying resin, plasticizer, antioxidant and stabilizer by proportioning;

[0043] (2) Set the temperature in the vacuum stirred tank to 180°C, add plasticizer, stabilizer and antioxidant to the reactor in sequence and put thermoplastic elastomer into it to stir for 90 minutes;

[0044] (3) Add tackifying resin, pass into nitrogen protection and continue to stir for 30min;

[0045] (4) Vacuumize the hydraulic pressure to discharge the material, and cool down to obtain the finished product;

[0046] In the above steps: the thermoplastic elastomer is composed of styrene-isoprene-styrene block copolymer and styrene-butadiene-styrene block copolymer, and styrene-isoprene-styrene block copolymer The mass mixing ratio of segment copolym...

Embodiment 2-6

[0051] A hot-melt pressure-sensitive adhesive for cotton packaging film, the difference from Example 1 is that each component and its corresponding weight are shown in Table 1.

[0052] Each component and its weight (kg) in table 1 embodiment 1-6

[0053]

[0054] The performance detection result of table 2 embodiment 1-3

[0055]

[0056]

[0057] From the data in Table 2, it can be seen that the raw materials of each component of the hot-melt pressure-sensitive adhesive for cotton packaging film are taken within the range of proportioning, which can make the obtained product maintain excellent and stable application performance, and among them the The performance of the product obtained by the ratio of each raw material is optimal.

Embodiment 7

[0059] A hot-melt pressure-sensitive adhesive for cotton packaging film, the difference from Example 1 is that styrene-isoprene-styrene block copolymer and styrene-butadiene-styrene block copolymer The mass mixing ratio of the substance is 1:0.1.

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Abstract

The invention relates to the field of hot-melt pressure-sensitive adhesives for packaging films, and particularly discloses a hot-melt pressure-sensitive adhesive for a cotton packaging film and a preparation method of the hot-melt pressure-sensitive adhesive. The invention relates to a hot-melt pressure-sensitive adhesive for a cotton packaging film. The hot-melt pressure-sensitive adhesive is prepared by mixing a thermoplastic elastomer, tackifying resin, a plasticizer, an antioxidant and a stabilizer, the thermoplastic elastomer is prepared from a styrene-isoprene-styrene block copolymer and a styrene-butadiene-styrene block copolymer, and the mass mixing ratio of the styrene-isoprene-styrene block copolymer to the styrene-butadiene-styrene block copolymer is 1 to (0.1 to 0.2). The hot-melt pressure-sensitive adhesive for the cotton packaging film can keep good and stable high and low temperature aging resistance and ultraviolet aging resistance at the same time, and is excellent in overall weather resistance, so that the bonding position of the packaging film is not prone to displacement and warping.

Description

technical field [0001] The application relates to the field of hot-melt pressure-sensitive adhesives for packaging films, more specifically, it relates to a hot-melt pressure-sensitive adhesive for cotton packaging films and a preparation method thereof. Background technique [0002] Hot-melt pressure-sensitive adhesive is a kind of pressure-sensitive adhesive, which is mainly made by mixing synthetic rubber, resin and rubber oil into a molten state and then coating it on substrates such as tissue paper, cloth or plastic film. A new type of adhesive tape. It is mainly used for all kinds of box sealing, box sealing, paper packaging, beverage bottle labels, sealing aluminum foil, waterproof rolls, express delivery sheets, flexible packaging and other packaging and environmentally friendly paper pallets, etc., suitable for various materials. [0003] Cotton is the field cash crop with the longest industrial chain in China's planting industry. Its commodity rate is as high as 9...

Claims

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Application Information

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IPC IPC(8): C09J153/02C09J157/02C09J145/00C09J123/20C09J11/06C09J11/08C09J7/35C09J7/38
CPCC09J153/02C09J11/06C09J11/08C09J7/35C09J7/387C09J2301/302C09J2301/304C08L2201/08C08L2205/025C08L53/02C08L57/02C08L45/00C08L23/22C08K5/3435C08K5/353C08K5/1345C08K5/526
Inventor 邓朝怀武林
Owner SHANGHAI YONGGUAN ADHESIVE PROD CORP LTD
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