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A kind of elastic hot-melt pressure-sensitive adhesive and its preparation method and application

A hot-melt pressure-sensitive adhesive and elastic technology, used in adhesives, non-polymer adhesive additives, adhesive types, etc., can solve the problems of easy generation of static electricity, easy deformation, poor hygroscopicity, etc., to achieve high production efficiency, The effect of low defective rate of finished products and good elastic recovery rate

Active Publication Date: 2021-10-29
佛山南宝高盛高新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the field of industrial adhesives, hot melt adhesives are commonly used to form elastic composites that can be used in disposable products such as diapers, pull-up pants, absorbent underwear, hygiene products and medical dressings (e.g., wound care products), especially the waist elastic material parts of disposable products such as diapers and pull-up pants, are usually made of elastic composites, so that the above-mentioned disposable products have better personal comfort and better leak-proof performance; conventional The elastic composite is composed of 5 layers of non-woven fabric, hot melt adhesive, elastic material (spandex), hot melt adhesive, and non-woven fabric, but the use of spandex elastic material has disadvantages such as poor hygroscopicity, easy deformation, and easy generation of static electricity.

Method used

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  • A kind of elastic hot-melt pressure-sensitive adhesive and its preparation method and application
  • A kind of elastic hot-melt pressure-sensitive adhesive and its preparation method and application
  • A kind of elastic hot-melt pressure-sensitive adhesive and its preparation method and application

Examples

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Effect test

preparation example Construction

[0042] A preparation method of elastic hot-melt pressure-sensitive adhesive, is characterized in that, comprises the steps:

[0043]S1: Confirm that the bottom valve of the reactor is closed, turn on steam heating, start the stirring paddle, and add plasticizer and antioxidant;

[0044] S2: Raise the temperature of the reactor in S1 to 140-150°C, add the polymer and stir until the polymer melts;

[0045] S3: Evenly put tackifying resin into the reaction kettle of S2, and after the tackifying resin is completely melted, add liquid petroleum resin and polyisobutylene to fully react;

[0046] S4: After the reaction in S3 is completed, filter the molten material in the reactor;

[0047] S5: Pass the molten material filtered in S4 through the cooling system, the drying system in sequence, and finally pack it.

[0048] Preferably, after adding the polymer to the S2, stir for 10 minutes, scrape off the polymer on the tank wall of the reaction kettle and the stirring paddle with a s...

Embodiment 1-4

[0057] The raw materials were weighed according to the ratio in Table 1 respectively, and the products were prepared according to the steps in Examples 1-4, see Table 1 for details:

[0058] Table 1: Raw material ratio table of embodiment 1-4

[0059]

[0060]

Embodiment 1

[0062] Example 1: After taking 32% SIS 1300, 18% naphthenic oil, 45% hydrogenated C5 petroleum resin, 1% antioxidant 1010, and 4% PB450 in proportion, first confirm that the bottom valve of the reaction tank is closed, turn on steam heating, and start Stir the paddle, add naphthenic oil and antioxidant 1010 accounting for 95% of the total mass of the naphthenic oil, then raise the temperature of the reactor to 140-150°C, add SIS 1300, wait until the SIS 1300 is added, and stir for 10 minutes, Use a scraper to scrape off the SIS 1300 on the tank wall of the reaction kettle and the stirring paddle, and continue to stir; after stirring for 50 minutes, check whether the sample is completely melted, if there are still particles, continue to stir, and record and extend the stirring time until SIS 1300 Completely melted; then slowly and evenly put hydrogenated C5 petroleum resin into the reactor, until the hydrogenated C5 petroleum resin is completely melted, add the remaining amount ...

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Abstract

The invention discloses an elastic hot-melt pressure-sensitive adhesive and its preparation method and application. The elastic hot-melt pressure-sensitive adhesive is prepared from the following components in weight percentage: polymer 30-50%, plasticizer 10-30% %, petroleum resin 40-60%, antioxidant 1-2%, polyisobutylene 3-5%, the sum of the mass percentages of the above components is 100%; the elastic hot-melt pressure-sensitive adhesive prepared by the present invention has good elasticity Recovery rate, can be used to prepare elastic composites, applied to the elastic material part of disposable absorbent products, replace elastic material spandex, endow each part of disposable products with stretching characteristics, and change the structure of traditional elastic composites, simplify it to non-woven The 3-layer elastic composite of material, hot melt adhesive and non-woven fabric saves material costs and optimizes the preparation process; the preparation process is highly operable, the process setting is reasonable, the finished product has a low rate of defective products, and the production efficiency is high.

Description

technical field [0001] The invention relates to the technical field of hot-melt adhesive application, in particular to an elastic hot-melt pressure-sensitive adhesive and its preparation method and application. Background technique [0002] Hot melt adhesive is a kind of plastic adhesive, which is an environmentally friendly chemical product. In the field of industrial adhesives, hot melt adhesives are commonly used to form elastic composites that can be used in disposable products such as diapers, pull-up pants, absorbent underwear, hygiene products and medical dressings (e.g., wound care products), especially the waist elastic material parts of disposable products such as diapers and pull-up pants, are usually made of elastic composites, so that the above-mentioned disposable products have better personal comfort and better leak-proof performance; conventional The elastic composite is composed of five layers of non-woven fabric, hot melt adhesive, elastic material (spande...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J157/02C09J153/02C09J191/00C09J191/06C09J11/06C09J11/08
CPCC08L2205/025C08L2205/035C09J11/06C09J11/08C09J157/02C08L53/02C08L23/22C08L91/00C08L91/06C08L53/025C08K5/1345C08K5/526
Inventor 余俊良韦宝平曹少波吴永升
Owner 佛山南宝高盛高新材料有限公司
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