CN101289605A - Environment protection type colourful flashing hot-melt adhesive - Google Patents

Abstract

The invention relates to environment-friendly colorized flash hot-melt adhesive, which comprises main body resin, tackifying resin, a diluent agent, flash powder, pigment and solvent, wherein the main body resin is selected from one sort or a plurality of sorts of ethylene-vinyl acetate copolymer EVA, ethylene-butyl acrylate copolymer EMA, ethylene-acrylic acid copolymer EAA, ethylene-ethyl acrylic acid copolymer EEA, styrene-isoprene copolymer SIS, styrene-butadiene copolymer SBS and amorphous alpha-olefin polymer APAO; and the tackifying resin is selected from one sort or a plurality of sorts of rosin, polymerized rosin, 145 resin, 138 resin, terpene resin, petroleum resin or hydrogenant petroleum resin. The environment-friendly colorized flash hot-melt adhesive adopts the nontoxic flash powder which has excellent suspension property and is cheap, environment-friendly, unprecipitated and easy to be dispersed evenly as filler; moreover, the usage amount of the tackifying resin is increased, thereby substantially reducing product cost and improving product bonding strength and performance.

Description

A kind of environment protection type colourful flashing hot-melt adhesive

Technical field

The present invention relates to a kind of tackiness agent of chemical industry, particularly relate to a kind of environment protection type colourful flashing hot-melt adhesive.

Background technology

Ethylene-vinyl acetate copolymer (EVA) based hot melt adhesive can be widely used in the industry-by-industry field.Along with the raising of production automation degree, the demand of this product is also increasing.At present, the hot melt adhesive kind of selling on market is a lot, but color is single, is yellow or multicolored usually; Many employing ethylene-vinyl acetate copolymers (EVA) are main raw material, and cost is higher.Along with the fast development of civilization of human society, the market demands hot melt adhesive neither weakens bonding strength with matching in color consistent by sticky object, requires attractive in appearance, durable, bright, bright-coloured again and reduces cost, and particularly artwork, toy industry are particularly outstanding.

Summary of the invention

The technical problem to be solved in the present invention provides a kind of environment protection type colourful flashing hot-melt adhesive.

For solving the problems of the technologies described above, technical scheme of the present invention is:

A kind of environment protection type colourful flashing hot-melt adhesive, it is pressed the row weight part and forms;

Matrix resin 21-29 weight part,

Tackifying resin 65-80 weight part,

Thinner 2-10 weight part,

Flashlight powder 2-40 weight part,

Pigment 0.1-1 weight part,

Solvent 0.1-1 weight part;

Wherein said matrix resin is selected from one or more compositions among ethylene and vinyl acetate copolymer EVA and ethene and butyl acrylate copolymer EMA, ethylene and acrylic acid copolymer EAA, ethene and ethyl propylene acid copolymer EEA, vinylbenzene and isoprene copolymer SIS, copolymer from styrene and butadiene SBS, the amorphous alpha-olefinic polymer APAO; Also can use ethylene and vinyl acetate copolymer EVA separately, but its cost is higher;

Described tackifying resin is selected from one or more compositions in rosin, polymerized rosin, 145 resins, 138 resins, terpine resin, petroleum resin or the hydrogenated petroleum resin;

Described thinner comprises paraffin, ceresine, polyethylene wax or Fischer-Tropsch wax;

Described flashlight powder: the material that illumination condition can glisten down;

Described pigment: food dye;

Described solvent: environmentally friendly type solvent;

In component, increase the weight part of tackifying resin, reduce the weight part of matrix resin and add environmental protection flashlight powder filler, all can reduce cost;

Employed raw material environmental protection.

The invention has the beneficial effects as follows:

1, reduces product cost significantly; One of means that reduce cost are to adopt flashlight powder to substitute traditional filler, and traditional filler is: lime carbonate, silicon powder, talcum powder, white carbon black, the white carbon black of lightweight, metal nitride, metal oxide etc.; But these fillers or than great easily sink to the bottom, and disperse bad, or too expensive.The present invention adopts flashlight powder as filler, it is made up of glitter powder, be to form through precise cutting by the high plated material of brightness, can be widely used in every profession and trade industrial art, wood industry, paper, cloth industry, plastic cement, resin, pottery, artificial flower, makeup etc., but appear in the newspapers in its application end at hotmelt; Its proportion and matrix resin and tackifying resin mixture proportion are approaching and the charge is small.

Two of the means that reduce cost are to strengthen the usage quantity of tackifying resin, and along with the tackifier consumption increases, mobile, diffustivity improves, and can improve the wettability and the tack of splicing face.But the tackifier consumption is too much, can cause glue-line to become fragile, and cohesive strength descends; The present invention selects the softening temperature and the EVA softening temperature of tackifier synchronous when increasing the tackifying resin consumption, Pei Zhi hot melt adhesive fusing point narrow range like this, and performance is good, has successfully solved glue-line and has become fragile, cohesive strength decline problem.

2, environmental protection can be satisfied European Community's environmental protection requirement.

3, strengthen the tackifying resin usage quantity and can increase the product bonding strength.

4, add nontoxic flashlight powder and can improve product viscosity and softening temperature.

5, add nontoxic flashlight powder and add other fillers and compare, its suspension is good, does not precipitate, and easily is uniformly dispersed, and helps improving the hot melt adhesive performance.

Embodiment

The present invention is further described below in conjunction with embodiment.

A kind of environment protection type colourful flashing hot-melt adhesive respectively by following material by weight percentage content form.

Embodiment 1 embodiment 2

EVA+EMA 22 EVA+EAA 21

Polymerized rosin 32 145 resins 29

Hydrotreated petroleum

Resin 35 polymerized rosines 39

Polyethylene wax 5 polyethylene waxs 5

Flashlight powder 5 flashlight powders 5

Pigment 0.5 pigment 0.5

Ethanol 0.5 ethyl acetate 0.5

Embodiment 3 embodiment 4

EVA+EEA 21 EVA+SIS 22

138 resins, 41 petroleum resin 40

Polymerized rosin 27 nilox resins 27

Polyethylene wax 5 polyethylene waxs 5

Flashlight powder 5 flashlight powders 5

Pigment 0.5 pigment 0.5

Methyl alcohol 0.5 butanols 0.5

Embodiment 5

EVA+SBS 22

Polymerized rosin 67

Fischer-Tropsch wax 5

Flashlight powder 5

Pigment 0.5

Acetone 0.5

Embodiment 6: a kind of production method of environment protection type colourful flashing hot-melt adhesive

The hot melt adhesive proportioning is as follows: 7 parts of polyethylene waxs, 40 parts of EVA+EAA, 2 parts of burgundy pigment, 40 parts of 145 resins, 1 part of flashlight powder, 2 parts in lime carbonate, 2 parts of silicon powders, 2 parts of talcum powder, 2 parts of white carbon blacks, 1 part of the white carbon black of lightweight, 1 part of JL-G02 properties-correcting agent.

Close the pot material that will prepare and be stirred to 800Cp with defending, will expect to add in the pot running and can take out granulation in about 10 minutes, the micelle of having made is again with 2 parts of talcum powder, 2 parts of carbon blacks, 1 part of the white carbon black of lightweight, JL-G02 properties-correcting agent mix granulation again for 1 part in vain.Extruding pelletization can be with single screw rod or twin screw extruder, and the hot melt adhesive performance of producing through the extruding pelletization method is as follows

Interventions Requested	Technical requirements	Assay
			180 ° of stripping strengths	≥10N/25mm	50N/25mm

Envrionment conditions: 22 ℃--23 ℃

Relative humidity: 50%-55%

180 ° of stripping strengths have been pressed C/T438-1991 (96) check.

Claims (1)

1. environment protection type colourful flashing hot-melt adhesive is characterized in that: it is pressed the row weight part and forms;

Matrix resin 21-29 weight part,

Tackifying resin 65-80 weight part,

Thinner 2-10 weight part,

Flashlight powder 2-40 weight part,

Pigment 0.1-1 weight part,

Solvent 0.1-1 weight part;

Wherein said matrix resin is selected from one or more compositions among ethylene and vinyl acetate copolymer EVA and ethene and butyl acrylate copolymer EMA, ethylene and acrylic acid copolymer EAA, ethene and ethyl propylene acid copolymer EEA, vinylbenzene and isoprene copolymer SIS, copolymer from styrene and butadiene SBS, the amorphous alpha-olefinic polymer APAO;

Described tackifying resin is selected from one or more compositions in rosin, polymerized rosin, 145 resins, 138 resins, terpine resin, petroleum resin or the hydrogenated petroleum resin;

Described thinner comprises paraffin, ceresine, polyethylene wax or Fischer-Tropsch wax;

Described flashlight powder: the material that illumination condition can glisten down;

Described pigment: food dye;

Described solvent: environmentally friendly type solvent.