CN1241384A

CN1241384A - Making process of cork-imitating insole

Info

Publication number: CN1241384A
Application number: CN 98110918
Authority: CN
Inventors: 陈洽沧
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-06-26
Filing date: 1998-06-26
Publication date: 2000-01-19

Abstract

One kind of organic sol containing cork dust is hot jet molded into cork imitating insole. The organic sol contains polyvinyl chloride powder, dioctyl phthalate, cork dust stuffing, styrene, urea resin, cadmium stearate, barium stearate and stearic acid. The hot jet molding temperature is 100-240 deg.c and the hot jet molding can produce light, soft and elastic insole with exactly the same appearance as cork and excellent heat dissipating performance.

Description

The manufacture method of cork-imitating insole

The present invention relates to a kind of manufacture method of cork-imitating insole.Be meant specifically and a kind ofly make filler and take shape in shoe-pad making method that this shoe-pad appearance exactly likes with the vegetable cork entity to be made, and has the suberose outward appearance visual effect of class, and has light weight, softness and tough and tensile on-deformable advantage concurrently with cork dust.

Have in the market with the cork is that material cuts into lamellar body and is bonded in the shoe-pad appearance again to have classic beautiful visual effects, yet this kind shoe-pad is owing to be the coating mode, therefore, wearability is low, also come off easily, then cost is too high even want the integral body portion of closing to make shoe-pad with cork, does not have an economic benefit, and this also is that the seen in the market cork outward appearance shoe-pad that has is the reason that coats the shoe-pad of cork with appearance.

All can reduce following two kinds in shoe-pad making method and kind thereof traditionally:

1. fill out and cover model (SLUSH MOLDING), it is to use plastisol (organosol) and curing principle immediately after hot body contacts, plastisol is poured in the mould (mostly being aluminum products) of preheating, the material that contacts with die wall begins gluing and solidifying, pour out remaining plastisol after several minutes, whole die face again with after the Steam Heating, is treated its cooling back taking-up finished product, this is general shoe-pad manufacture method commonly used, and it can be made into rubber insole, plastic cement shoe-pad etc.This method owing to be that plastisol is poured in the mould, then needs additionally mould glue face steam heated on producing, and therefore, production efficiency is not good, and known this method is not made the shoe-pad that contains the cork dust filler of the present invention yet.

2. pad cuts method for making: with the method for making of calendering; make large-area pad; with the method for economy cutting, cut into the shoe-pad of institute's palpus, again though this method has mass-produced value; so only limit to the relatively poor shoe-pad of production quality; and its patterning method still can produce waste material, causes waste, and this method can be produced as foam, cloth shoe-pad and colloid shoe-pad; but, and be not suitable for the manufacturing of the higher shoe-pad of future development light weight, softness and protection bed thickness, valency matter because of it still has shortcoming.

For this reason, the objective of the invention is: the manufacture method that a kind of cork-imitating insole is provided, it is a kind of organosol that will contain cork dust as filler, adopts hot emission molding to make the manufacture method of cork-imitating insole, can produce light weight, heat radiation is good, toughness is strong shoe-pad.

The invention provides a kind of manufacture method of cork-imitating insole, include:

A. polyvinyl chloride powder is mixed with constant weight umber ratio with dioctyl phthalate (DOP) and form plastisol;

B. the additive that adds constant weight umber ratio in the gained plastisol mixes, and this additive includes:

1. urea resin is as reinforcing agent, in order to increase polymeric intensity;

2. stearic acid as lubricant, with so that molded shoe pad smooth surface, and makes it be easy to the demoulding;

3. one package stabilizer is made up of cadmium stearate and barium stearate, and is polymeric aging in order to prevent;

4. styrene is controlled agent as change, in order to promote cross-linking reaction; To form organosol; And

C. after the organosol of gained adds filler again, carry out the moulding program via hot Jet forming machine with hot emission molding method again;

The filler that the present invention added is a cork dust, and the scope of this hot emission molding temperature is 100-240 ℃.Organosol each component parts by weight ratio respectively is: polyvinyl chloride powder 80-100 part; O-phthalic acid dibutyl ester 40-80 part, cork dust filler 40-60 part.Styrene 5-10 part, urea resin 2-6 part, hard ester acid cadmium 0.5-3 part, barium stearate 0.5-3 part, stearic acid 0.5-2.5 part.

By above-mentioned preparation method, just can moldedly obtain outward appearance that an appearance exactly likes true cork and have lightweight, softness, imitative subereous shoe-pad that toughness is strong concurrently, and also have the on-deformable advantage of the bed thickness of protection.The also easy ixoderm leather of the shoe-pad that the inventive method is made has the advantage of easy heat radiation thereon.Make the method for shoe-pad via hot emission molding, production efficiency height (10/minute) has very big economic benefit.

Following drawings and Examples will help the present invention is further understood.

Fig. 1 is the decomposing schematic representation of footwear.It comprises vamp 10, shoe-pad 12 and sole 14, and wherein shoe-pad 12 is the made shoe-pad of the present invention.

Embodiment 1:

A. the preparation of colloidal sol: in the parts by weight ratio of listed each component in the table 1, at first polyvinyl chloride powder and dioctyl phthalate are mixed and made into plastisol, in plastisol, add urea resin, stearic acid, cadmium stearate, barium stearate and styrene again and evenly be mixed and made into organosol, add the cork dust filler again in organosol, mixing can obtain containing the organosol of cork dust filler.

Table 1

Composition	Parts by weight
Composition	Parts by weight	Polyvinyl chloride powder	????100
Dioctyl phthalate	?????80	Polyvinyl chloride powder	????100
Dioctyl phthalate	?????80	The cork dust filler	?????50
Styrene	??????8	The cork dust filler	?????50
Styrene	??????8	Urea resin	??????5
Cadmium stearate	??????2.5	Urea resin	??????5
Cadmium stearate	??????2.5	Barium stearate	??????2.5
Stearic acid	??????2	Barium stearate	??????2.5

B. the manufacturing of shoe-pad, gained organosol among a is placed the loading hopper of hot Jet forming machine, in make-up machine, behind heater heating (about 180 ℃) this colloidal sol, again this thermosol is penetrated in the shoe-pad set of molds by nozzle, just can the thermoplastic molded moulding this contain the shoe-pad of cork dust filler.

Claims

1. the manufacture method of a cork-imitating insole is with organosol moulding in mould, it is characterized in that it comprises:

A. polyvinyl chloride powder is mixed with dioctyl phthalate and form plastisol;

B. add additive in the gained plastisol, this additive includes: urea resin, and stearic acid, one package stabilizer and the styrene be made up of cadmium stearate and barium stearate are to form organosol; And

C. after the organosol of gained adds the cork dust filler again, carry out the moulding program via hot Jet forming machine with hot emission molding method again,

The scope of this hot emission molding temperature is 100-240 ℃, the parts by weight ratio of above-mentioned component respectively is: polyvinyl chloride powder 80-100 part, o-phthalic acid dibutyl ester 40-80 part, cork dust filler 40-60 part, styrene 5-10 part, urea resin 2-6 part, hard ester acid cadmium 0.5-3 part, barium stearate 0.5-3 part and stearic acid 0.5-2.5 part.

2. press the manufacture method of the described cork-imitating insole of claim 1, the parts by weight ratio that it is characterized in that described component respectively is 100 parts of polyvinyl chloride powders, 80 parts of dioctyl phthalates, 50 parts of cork dust fillers, 8 parts of styrene, 5 parts of urea resins, 2.5 parts of cadmium stearates, 2 parts of 2.5 parts of barium stearates and stearic acid.

3. the shoe-pad of a cork-imitating is characterized in that it is the shoe-pad of making by the manufacture method of claim 1.