Paper-plastic lamination adhesive and method for preparing same

A laminating adhesive and paper-plastic technology, applied in the direction of surface covering paper, adhesive type, ester copolymer adhesive, etc., can solve the problems of poor aging resistance, low sticking force, low cohesive force, etc. Achieve the effect of improving heat resistance and aging resistance, improving cohesive strength and heat resistance, improving cohesive force and bonding strength

Inactive Publication Date: 2005-06-29
SOUTH CHINA UNIV OF TECH
View PDF0 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantages of hot-melt laminating adhesive are that it does not contain organic solvents, low pollution, fast coating speed, and high production efficiency. However, this method of pre-coating film also has some disadvantages: it can only be bonded after heating, and it is inconvenient to use. The laminated product with low adhesion is easy to peel off, and there are some problems in subsequent processing, which limits its use
[0008] (1) The performance of the emulsion is unstable and the shelf life is short;
[0009] (2) Low initial adhesion, poor aging resistance, sharp drop in peel strength during placement, and low holding power;
[0010] (3) The frost resistance, heat resistance and wettability of the emulsion itself to the surface of the substrate (especially the low-energy surface) are poor, and the compatibility with the printing ink is not good;
[0011] (4) The migration of the small molecule emulsifier in the emulsion makes the product have poor water resistance and physical properties such as adhesion;
[0012] (5) Since water volatilizes slower than organic solvents, it cannot be coated at high speed during processing of laminated products, and heat drying is required, resulting in low production efficiency;
[0013] (6) In order to increase the miscibility of emulsion and tackifying resin, some emulsion-type laminating adhesives add organic solvents, which are harmful to the environment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] Preparation of Laminating Adhesive 1

[0080] (1) Weigh 3.0g of composite emulsifier, 35g of water, place in a pre-emulsification kettle, stir, weigh 2g of acrylic acid, 4g of methacrylic acid, 8g of styrene, 36g of butyl acrylate, 45g of isooctyl acrylate, and 5g of hydroxyethyl acrylate and 1g of N-hydroxyacrylamide are mixed and added to the pre-emulsification kettle, pre-emulsified for 30-40min, and set aside.

[0081] (2) Take 0.6g of sodium bicarbonate and 38g of water, put them in a 500ml four-neck flask equipped with an electric stirrer, a thermometer, and a condensing reflux device, raise the temperature of the water bath heating device to 75-85°C while stirring, and put 0.2g Potassium persulfate was dissolved in 4g of water and added to a four-neck flask.

[0082] (3) drop the emulsion prepared in step (1), dissolve 0.5g potassium persulfate in 25g water, add dropwise at the same time, the time of dropping is controlled at 2~4h, then 70~85°C is incubated for ...

Embodiment 2

[0091] Preparation of laminating glue 2

[0092] (1) Weigh 2.5g of compound emulsifier, 30g of water, place in a pre-emulsification kettle, stir, weigh 2g of acrylic acid, 4g of methacrylic acid, 29g of styrene, 20g of butyl acrylate, 40g of isooctyl acrylate, and 5g of hydroxyethyl acrylate and 1g of N-hydroxyacrylamide are mixed and added to the pre-emulsification kettle, pre-emulsified for 30-40min, and set aside.

[0093] (2) Take 0.6g of sodium bicarbonate, 0.5g of compound emulsifier, and 43g of water, place them in a 500ml four-neck flask with an electric stirrer, a thermometer, and a condensing reflux device, and raise the temperature of the water bath heating device to 75-75% while stirring. At 85°C, dissolve 0.2g of potassium persulfate in 4g of water and add it to a four-neck flask.

[0094] (3) drop the emulsion prepared in step (1), dissolve 0.5g potassium persulfate in 25g water, add dropwise at the same time, the time of dropping is controlled at 2~4h, then 70~...

Embodiment 3

[0103] Preparation of Laminating Adhesive 3

[0104] (1) Weigh 0.3g of composite emulsifier, 5g of water, place in a pre-emulsification kettle, stir, weigh 0.2g of acrylic acid, 0.8g of methacrylic acid, 6g of styrene, 6g of butyl acrylate, and 7g of isooctyl acrylate and mix Then slowly add to the pre-emulsification kettle, pre-emulsify for 30-40 minutes, and set aside.

[0105] (2) Weigh 2.7g of composite emulsifier, 30g of water, place in a pre-emulsification kettle, stir, weigh 0.8g of acrylic acid, 3.2g of methacrylic acid, 20g of styrene, 28g of butyl acrylate, 25g of isooctyl acrylate, 1g of hydroxyethyl methacrylate and 4g of N-hydroxyacrylamide are mixed and added to the pre-emulsification kettle, pre-emulsified for 30-40min, and set aside.

[0106](3) Take 0.6g of sodium bicarbonate and 38g of water, put them in a 500ml four-necked flask equipped with an electric stirrer, a thermometer, and a condensing reflux device, raise the temperature of the water bath heating ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
glass transition temperatureaaaaaaaaaa
Login to view more

Abstract

Disclosed are a paper-plastic glue and its preparing method,comprising of high polymer latex 70-90%,resin 5-15%,inorganic powder filler 3-15%,dispersant 0.5-0.8%,thickener 0.2-0.5% and deformer 0.1-0.3%. Its preparing method is:1.pre the deformer with high polymer latex; 2. disperse; 3. add into inorganic filler and disperse;4.add into resin and disperse;5. add into thickener for adjusting the viscosity to be the construction one,the output and package the material.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a paper-plastic laminating adhesive and a preparation method thereof. Background technique [0002] Paper-plastic laminating adhesive is an adhesive for pasting corona-treated polymer films and paper. The polymer films used are mainly polypropylene (BOPP), polyester film (PET), polyvinyl chloride (PVC), polyester and other films. The main function of laminating paper is to make moisture-proof, waterproof, and beautiful-looking packaging materials. To the role of folding and wear resistance, improve service life. The adhesive used for paper-plastic lamination is called laminating glue. [0003] The application of paper-plastic composite technology has been very common. It is widely used in the packaging and printing industry such as product brochures, hardcover book covers, product advertisements, business cards, hardcover calendars, and painting artwork production. [0004]...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08D21H27/18
Inventor 文秀芳皮丕辉曹高程江杨卓如
Owner SOUTH CHINA UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap