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Hot-melt adhesive capable of losing adhesion after contacting of water, and product thereof

A technology of hot-melt adhesive and cohesive force, which is applied in the direction of adhesives, layered products, film/sheet adhesives, etc., and can solve the problem of irreplaceable paste mounting process, unable to unmount and repair calligraphy and painting, damage to calligraphy and painting, etc. problems, to achieve the effect of solving unmountable, convenient recycling and improving recycling rate

Active Publication Date: 2017-01-18
刘景阳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the paintings and calligraphy mounted with hot melt adhesives cannot be uncovered and repaired, some paintings and calligraphy are damaged, making this method of mounting unable to replace the traditional paste mounting process

Method used

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  • Hot-melt adhesive capable of losing adhesion after contacting of water, and product thereof
  • Hot-melt adhesive capable of losing adhesion after contacting of water, and product thereof
  • Hot-melt adhesive capable of losing adhesion after contacting of water, and product thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Embodiment 1: a kind of manufacture method of painting and calligraphy mounting adhesive film (the hot-pressed mounting adhesive film that can be demounted by water) comprises the following steps:

[0053] Step 1) Add conventional ethylene vinyl acetate (EVA) hot melt adhesive, accounting for 56% of the total amount; acrylic water-absorbing resin, accounting for 44% of the total amount, into a hot-melt mixing tank, and melt and mix. Then a non-porous hot-melt adhesive film is prepared by a coating machine and a casting machine.

[0054] Step 2) melt the above-mentioned hot melt adhesive and evenly apply it to the surface of the release paper (also called release paper) through a hot melt adhesive coating machine; then form a non-porous hot melt adhesive film through cooling and molding, and then roll it up Cut into rolls or sheets, which can be demounted with water and can be hot-pressed and mounted.

[0055] Step 3) Make the above-mentioned special hot melt adhesive i...

Embodiment 2

[0057] Embodiment 2: a kind of calligraphy and painting mounting adhesive film (the hot-pressed mounting adhesive film that can be demounted by water) and its manufacture method, comprise following steps:

[0058] Step 1) conventional ethylene vinyl acetate (EVA) hot melt adhesive, accounting for 70% of the total amount; acrylic acid water-absorbing resin, accounting for 25% of the total amount; silicon dioxide, accounting for 2% of the total amount; sodium bicarbonate, Add 3% of the total amount into the hot melt mixing tank, melt and mix. Then a porous hot-melt adhesive film is prepared by a coating machine and a casting machine.

[0059] Step (2) Manufacture of porous hot-melt adhesive film by coating method: install one roll of base paper that can be water-mounted and coated on the unwinding frame of the coating machine, and the paper is coated with hot-melt adhesive under the traction of the coating machine. Cloth head, the hot-melt adhesive is transferred to the anti-ad...

Embodiment 3

[0062] Embodiment 3: A kind of hot-melt adhesive product that meets water and loses cohesion, as figure 1 Shown, the structural representation of hot-melt adhesive film 1,

[0063] A hot-melt adhesive product that loses cohesive force when exposed to water, as shown in Figure 2, the hot-melt adhesive coating 4 on the surface of the hot-melt adhesive label paper is connected to the paper base 2 on the hot-melt adhesive label paper;

[0064] A hot-melt adhesive product that loses its cohesive force when exposed to water, as shown in Figure 3, a hot-melt adhesive film (including a porous film and a non-porous film) 1 is connected with a release paper, also known as an anti-sticking paper 3;

[0065] A hot-melt adhesive product that loses its cohesive force when it meets water. The hot-melt adhesive formula can be made into different hot-melt adhesive products. The components of the hot-melt adhesive formula are mixed, heated and melted, and then produced by a granulator Hot-melt...

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Abstract

The invention relates to a hot-melt adhesive capable of losing adhesion after contacting of water, and a product thereof, and belongs to the technical field of new materials. The hot-melt adhesive contains, by mass, 100 parts of a conventional hot-melt adhesive (softening point of 60-150 DEG C), 10-80 parts of a macromolecule water absorption material, 0-20 parts of a filler, and 0-10 parts of a foaming agent. According to the present invention, the hot-melt adhesive has the following special performance that the hot-melt adhesive can be adhered after sequential heating and cooling and can lose the adhesion after contacting of the water, such that the hot-melt adhesive can be used for easy-fiber-separation bookbinding during paper recovery, can be used for producing hot-melt adhesive labels capable of being peeled with water, can replace the current complicated manual paste painting and calligraphy mounting and the painting and calligraphy mounting incapable of being remounted by the ordinary hot-melt adhesive film, and can further be used for special composite materials requiring adhesion and convenient peeling.

Description

technical field [0001] The invention relates to a hot-melt adhesive which loses its cohesive force when it encounters water and a product thereof, belonging to the technical field of new materials. Background technique [0002] Hot melt adhesive is a kind of plastic adhesive. Its physical state changes with temperature within a certain temperature range, but its chemical properties remain unchanged. It is non-toxic and tasteless, and is an environmentally friendly chemical product. Because the product itself is solid, it is convenient for packaging, transportation, storage, solvent-free, pollution-free, non-toxic, and has the advantages of simple production process, high added value, strong bonding strength, and fast speed. Due to the wide application of hot-melt adhesives in paper products, such as book binding, hot-melt adhesive labels, painting and calligraphy mounting, etc., and their adhesiveness is almost permanent, the hot-melt adhesives in these paper products are re...

Claims

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Application Information

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IPC IPC(8): C09J123/08C09J133/00C09J11/04C09J7/00C08J9/08B32B37/12
CPCB32B37/1207B32B2037/1215C08J9/08C08J2203/02C08J2323/08C08J2433/00C08L2203/14C09J7/00C09J11/04C09J123/0853C09J2301/304C08L33/00C08K3/36
Inventor 刘景阳刘维巍刘维嵩
Owner 刘景阳
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