CN100522572C

CN100522572C - Method for producing foaming cushion

Info

Publication number: CN100522572C
Application number: CNB2005100924852A
Authority: CN
Inventors: 林文山
Original assignee: ALL MATS Co Ltd
Current assignee: ALL MATS Co Ltd
Priority date: 2005-08-23
Filing date: 2005-08-23
Publication date: 2009-08-05
Anticipated expiration: 2025-08-23
Also published as: CN1919584A

Abstract

The invention discloses a preparing method of foaming pad, which comprises the following steps: allocating fitful PVC powder, DOP plastic agent, light-weight calcium carbonate, kaolin, foamer and pigment, casting in the composite device to form liquid slurry, transmitting in the middle material barrel, stewing at normal temperature for 8h, prefoaming, coating the transmitting belt to form slurry layer, stewing the slurry layer at 80-90 deg.c for 3-10min, heating at 185-200 deg.c for 20-30 min, foaming entire foam pad, cooling, punching, moulding the outline shape and distinctive line of surface, cutting, obtaining foaming pad product.

Description

The manufacture method of foaming cushion

Technical field

The present invention is relevant with a kind of pad, particularly, is meant a kind of bubble that can be connected in the inner formation of the foaming cushion continuity of moulding especially, makes it have the manufacture method of preferable fatigue resistance.

Background technology

The application of foaming cushion is quite extensive, especially more common on the people's livelihood and sporting goods, general foaming cushion roughly is to be mixed mutually by an amount of PVC powder, DOP plasticizer, precipitated calcium carbonate, kaolin, blowing agent and colorant, coat on the conveyer belt via the roller pressing again or on the release liners, and with the moulding of high temperature foamable, at last, again via the mould heat pressure foaming cushion finished product required with cutting acquisition.

The manufacture method of known foaming cushion, though can produce foaming cushion finished product miscellaneous, but all be not connected each other between inner formed each bubble of this foaming cushion, and be numerous enclosed individual bubble, therefore, when this foaming cushion pressurized, because the individual bubble of pressurized can't be connected with other bubble, thus can produce bounce immediately, therefore, though this foaming cushion has buffering elasticity, but its bounce-back or slowly power is stronger is for some product that uses for human body, such as shoe-pad or motion pad etc., will make the position generation discomfort of exerting pressure such as foot, if service time is longer, even have the phenomenon of DOMS, so how to improve the manufacture method of known foaming cushion, to obtain real required foaming cushion structure, truly have its necessity.

Summary of the invention

The object of the present invention is to provide a kind of manufacture method of foaming cushion.

For achieving the above object, the manufacture method of foaming cushion provided by the invention comprises following method step:

A, purchase raw material; Prepare an amount of PVC powder, DOP plasticizer, precipitated calcium carbonate, kaolin, blowing agent and colorant;

B, mixing; Above-mentioned raw materials is injected a mixing arrangement mix mutually, to form liquid slurry;

C, prefoam; Above-mentioned liquid slurry sent in the middle of one left standstill about 8 hours with normal temperature in the charging basket, it is foamed in advance;

D, coating; Liquid slurry after the above-mentioned prefoam coated be open state on the belt conveyor, and on belt conveyor, form the pulp layer of a predetermined thickness;

E, leave standstill heating; Above-mentioned pulp layer is left standstill about 3～10 minutes of heating with 80～90 ℃;

F, foaming; Leave standstill pulp layer after the heating with about 20～30 minutes of 185～200 ℃ of heating with above-mentioned, make its foaming form the full slice system foaming cushion of predetermined thickness;

G, cooling; In a predefined manner, above-mentioned full slice system foaming cushion is suitably cooled off in regular turn;

H, hot-forming; With the above-mentioned foaming cushion of mould heat pressure, make it mold required contour shape and surface pattern;

I, cut; Hot-forming full slice system foaming cushion is suitably cut, can obtain required foaming cushion finished product successively.

Wherein these raw materials can be distinguished in advance with the charging basket splendid attire.

After wherein this blowing agent and DOP plasticizer are pre-mixed, mix mutually with other raw material again.

Wherein this cooling step can carry out by cooling fan.

Wherein the percent opening of this full slice system foaming cushion reaches 94% approximately.

The foaming cushion that manufacture method provided by the present invention obtained, can form the successional bubble that is connected in inside, and bounce-back that produces can delay the foaming cushion pressurized time or buffering power, so when its during as purposes such as shoe-pad or motion pads, can bring into play preferable fatigue resistance, ache and discomfort to avoid foot.

Description of drawings

Fig. 1 is the manufacturing process block schematic diagram of foaming cushion of the present invention.

Fig. 2 is the manufacturing flow process and the equipment configuration schematic diagram of foaming cushion of the present invention.

Fig. 3 is applied to the shoe-pad schematic appearance for foaming cushion of the present invention.

Fig. 4 organizes schematic diagram for the air entrapment of foaming cushion of the present invention.

The specific embodiment

See also Fig. 1,2, the invention provides a kind of manufacture method preferred embodiment of foaming cushion, the manufacturing process of this foaming cushion includes following method step:

A, purchase raw material stage

Prepare an amount of polyvinyl chloride (being called for short PVC) powder 1, dioctyl phthalate (being called for short DOP) plasticizer 2, precipitated calcium carbonate 3, kaolin 4, blowing agent 5 and colorant 6; Wherein, above-mentioned raw materials can be in advance with charging basket 10 splendid attires;

B, blend step

Above-mentioned each raw material is injected a mixing arrangement 20 mix mutually, to form liquid slurry 7; Wherein, the blowing agent 5 in the above-mentioned raw materials mixes with other raw material in the mixing arrangement 20 that reinjects after must being pre-mixed with dioctyl phthalate (being called for short DOP) plasticizer 2 mutually;

C, prefoam step

Above-mentioned mixed liquid slurry 7 is sent in the middle charging basket 30, and left standstill under the normal temperature state about 8 hours, its purpose is to make this liquid state slurry 7 to produce the prefoam effects, makes the bubble Sustainable Growth;

D, application step

Liquid slurry 7 after the above-mentioned prefoam is coated on the belt conveyor 40, made it be open state, and can on belt conveyor 40, form the pulp layer 8 of a suitable thickness;

E, leave standstill heating steps

Utilize baking box 50 to leave standstill about 3～10 minutes of heating above-mentioned pulp layer 8 with 80～90 ℃;

F, foaming step

Utilize baking box 60 with about 20～30 minutes of 185～200 ℃ of heating the above-mentioned pulp layer 8 that leaves standstill after the heating again, make pulp layer 8 maturation of foaming fully, to form the full slice system foaming cushion 9 of a suitable thickness;

G, cooling step

With cooling fan 70 or alternate manner above-mentioned full slice system foaming cushion 9 is suitably cooled off;

H, hot-forming step

Utilize the above-mentioned foaming cushion 9 of mould 80 hot pressing, and can mold required contour shape and surface pattern successively at foaming cushion 9;

I, cutting step

Utilize cutting means 90 suitably to cut above-mentioned full slice system foaming cushion 9 after hot-forming, and can obtain successively such as required foaming cushion finished product 9a such as shoe-pad, motion pads.

See also Fig. 3,4, utilize manufacture method of the present invention, can produce shoe-pad, foaming cushion finished product 9a such as motion pad, wherein, because foaming cushion 9a of the present invention has done abundant mixing and reaction in the raw material blend step, and utilization reaches 8 hours prefoam step in advance, therefore, can control the viscosity of slurry effectively, simultaneously, more by the heating steps that leaves standstill after the open coating, make bubble be able to freely grow up, and can not produce broken bubble and form the uneven bubble of size before the gel fully as yet at pulp layer 8, that is, can allow inner each bubble wall rupture and being interconnected, so, can form the bubble 91 that continuity is connected, its percent opening Yue Keda about 94%, thus, when foaming cushion finished product 9a such as this shoe-pad or motion pad are subjected to the user to jam on the application of force, can see through gas and flee conducting mutually in 91 in the bubble of respectively being connected, and delay the bounce-back of foaming cushion finished product 9a or cushion power, therefore, can provide the positions of exerting pressure such as user's foot more soft, comfortable buffering effect, make foaming cushion finished product 9a compare known foaming cushion and more can bring into play preferable fatigue resistance, and can effectively avoid the contact site of exerting pressure such as foot to produce and ache and discomfort.

The above only is of the present invention one preferable possible embodiments, changes so use the equivalent structure that specification of the present invention and claim do such as, ought to be included in the claim of the present invention.

Claims

1. the manufacture method of a foaming cushion comprises following method step:

E, leave standstill heating; Above-mentioned pulp layer is left standstill heating 3～10 minutes with 80～90 ℃;

F, foaming; Under 185～200 ℃ temperature,, make its foaming form the full slice system foaming cushion of predetermined thickness with above-mentioned pulp layer heating 20～30 minutes of leaving standstill after the heating;

2, the manufacture method of foaming cushion as claimed in claim 1, wherein this PVC powder, DOP plasticizer, precipitated calcium carbonate, kaolin, blowing agent and colorant are respectively in advance with the charging basket splendid attire.

3, the manufacture method of foaming cushion as claimed in claim 1 after wherein this blowing agent and DOP plasticizer are pre-mixed, is mixed with other raw material mutually.

4, the manufacture method of foaming cushion as claimed in claim 1, wherein this cooling step cools off with cooling fan.

5, the manufacture method of foaming cushion as claimed in claim 1, wherein the percent opening of this full slice system foaming cushion reaches 94%.