CN100516352C - Method for producing polyurethane adhesive plaster - Google Patents
Method for producing polyurethane adhesive plaster Download PDFInfo
- Publication number
- CN100516352C CN100516352C CNB2006101120025A CN200610112002A CN100516352C CN 100516352 C CN100516352 C CN 100516352C CN B2006101120025 A CNB2006101120025 A CN B2006101120025A CN 200610112002 A CN200610112002 A CN 200610112002A CN 100516352 C CN100516352 C CN 100516352C
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- Prior art keywords
- polyurethane
- base cloth
- impregnation base
- producing method
- mould
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention relates to a polyurethane rubberized fabric producing method. It includes the following steps: using two extruders to respectively feed for two dies; using the die to extrude the polyurethane fluid; joining cement dipping base cloth with the polyurethane fluid through the middle gap of the two dies; forming polyurethane adhesive layer at the two sides of the cement dipping base cloth by die orifice extruding at the same time. The invention can greatly increase peeling strength of the polyurethane adhesive layer and cement dipping base cloth, shorten production flow and equipment investment.
Description
Technical field
The present invention relates to a kind of production method of adhesive plaster, particularly relate to a kind of adhesive plaster production method that applies with Polyurethane Thermoplastic Elastomer.
Background technology
Polyurethane rubberized fabric producing method of the prior art is the one side that adopts the primary coating fabric, and the back upset fabric that is shaped applies the method for another side again.This production method generally is made up of two steps, and first step is that the polyurethane fluid that forms after urethane raw is melted through heating is coated on the one side of impregnation base cloth equably by being coated with head, thereby forms the polyurethane glue-line on this face.Second step is identical with the principle of first step, and the polyurethane fluid that just will heat after melting is coated on the another side of impregnation base cloth equably by being coated with head, thereby forms the polyurethane glue-line on another side.Between the first step and second step, arrange turning device, make the upset of impregnation base cloth tow sides, so that on lining, form two-sided polyurethane glue-line.The weak point of this production method is: (a) the finished product adhesive plaster is second-rate, and the peel strength between polyurethane glue-line and the impregnation base cloth braid is not high, general being difficult to above 200N/25mm; (b) production procedure is longer, and (c) equipment investment is higher.
Summary of the invention
In order to solve the deficiencies in the prior art, the invention provides a kind of novel polyurethane rubberized fabric producing method, utilize method of the present invention can shorten production procedure, reduce equipment investment, particularly can increase substantially the peel strength of polyurethane adhesive plaster.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions: polyurethane is extruded through extruder, form the polyurethane glue-line on impregnation base cloth two sides, it is characterized in that utilizing two extruders to extrude the polyurethane fluid simultaneously, on the two sides of impregnation base cloth, form the polyurethane glue-line simultaneously, described two extruders is respectively to two mould feed, and it is membranaceous by heating polyurethane evenly to be scattered in curtain coating; Mould is adjusted load by die orifice, and control is squeezed film thickness and made its uniformity.
The present invention further provides a kind of polyurethane rubberized fabric producing method, the peel strength in the wherein said polyurethane adhesive plaster between polyurethane glue-line and impregnation base cloth is 300～500N/25mm.
The present invention further provides a kind of polyurethane rubberized fabric producing method, mode of heating in mould adopts, temperature is controlled at 160～200 ℃.
The present invention further provides a kind of polyurethane rubberized fabric producing method, wherein the impregnation base cloth with drying passes through two mould intermediate gap, and impregnation base cloth two sides is converged with the polyurethane fluid simultaneously.
The present invention further provides a kind of polyurethane rubberized fabric producing method, wherein said impregnation base cloth and polyurethane fluid are combined closely by the extruding of die orifice.
Compare with existing production technology, the invention has the beneficial effects as follows: utilize that peel strength can reach 300～500N/25mm between the polyurethane glue-line of the finished product adhesive plaster that the inventive method produces and the impregnation base cloth, obviously shortened simultaneously production procedure, significantly reduced equipment investment, its amount of investment only is equivalent to 1/10 of single face gradation coating equipment.
Description of drawings
Fig. 1 is the process flow diagram of polyurethane adhesive cloth production process.
The specific embodiment
Technological process of the present invention is:
The invention will be further described below in conjunction with Fig. 1.
(1) after base cloth 1 unwinding through the impregnation processing, the oven dry of impregnation base cloth, oven temperature is at 80～110 ℃ by baking oven 2.
(2) polyurethane and Masterbatch require to carry out proportioning in proportion according to product color, are in 70～110 ℃ the dehumidifier 7 after the oven dry by temperature, enter two extruders 6 simultaneously.
(3) the extruder cylinder barrel adopts the electrical heating attemperating unit, heat form heating in mould 5 adopts, and temperature is controlled in 160～200 ℃ of scopes.Each mould 5 heating-up temperature is controlled respectively, can stablely control the plasticizing rate of polyurethane and distribution and amount of flow in mould.
(4) it is membranaceous by mould 5 polyurethane evenly to be scattered in curtain coating, utilizes die orifice to adjust load, and film thickness is squeezed in control makes it reach uniformity.
(5) the impregnation base cloth after the oven dry is through spread roller 3, fabric guide roll 4, heat once more by mould 5, the upper and lower surface of impregnation base cloth 1 converges with the melt polyurethane fluid that two moulds 5 are extruded respectively, extruding by die orifice, combined closely in the two sides of polyurethane and impregnation base cloth 1, guarantee that it has higher peel strength.
(6) polyurethane adhesive plaster of moulding makes adhesive plaster further improve peel strength through stack 8, simultaneously, improves the consistency of thickness of presentation quality, maintenance two sides polyurethane glue-line.
(7) last, adhesive plaster batches packing through chill roll 9 cooling and shapings, carry-over pinch rolls 10 traction countings, cloth beam 11.
(8) extruder 6, stack 8, carry-over pinch rolls 10, cloth beam 11 all adopt electric machine speed regulation control, make its synchronous operation.
Claims (4)
1, a kind of polyurethane rubberized fabric producing method, wherein polyurethane converges with the impregnation base cloth after extruder is extruded, form the polyurethane glue-line on impregnation base cloth two sides, it is characterized in that: utilize two extruders to extrude the polyurethane fluid simultaneously, on the two sides of impregnation base cloth, form the polyurethane glue-line simultaneously, described two extruders is respectively to two mould feed, and is membranaceous the uniform curtain coating that is scattered in of polyurethane by heating; Mould is adjusted load by die orifice, and control is squeezed film thickness and made its uniformity; Heat form in described mould adopts, temperature is controlled at 160～200 ℃.
2, polyurethane rubberized fabric producing method according to claim 1 is characterized in that: the peel strength in the described polyurethane adhesive plaster between polyurethane glue-line and impregnation base cloth is 300～500N/25mm.
3, polyurethane rubberized fabric producing method according to claim 1 is characterized in that: the impregnation base cloth is by two mould intermediate gap, and impregnation base cloth two sides is converged with the polyurethane fluid simultaneously.
4, polyurethane rubberized fabric producing method according to claim 3 is characterized in that: impregnation base cloth and polyurethane fluid are combined closely by the extruding of die orifice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101120025A CN100516352C (en) | 2006-08-28 | 2006-08-28 | Method for producing polyurethane adhesive plaster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101120025A CN100516352C (en) | 2006-08-28 | 2006-08-28 | Method for producing polyurethane adhesive plaster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1912233A CN1912233A (en) | 2007-02-14 |
| CN100516352C true CN100516352C (en) | 2009-07-22 |
Family
ID=37721273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101120025A Active CN100516352C (en) | 2006-08-28 | 2006-08-28 | Method for producing polyurethane adhesive plaster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100516352C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592272B (en) * | 2009-06-30 | 2011-01-05 | 北京光华纺织集团有限公司 | Method for manufacturing light suction transfusion hose |
| CN107457952A (en) * | 2016-09-30 | 2017-12-12 | 温州市康家塑胶制品有限公司 | High intensity fabric complex method and preparation facilities |
| CN112873794A (en) * | 2020-12-25 | 2021-06-01 | 北京光华纺织集团有限公司 | Industrial planar fabric coating process |
-
2006
- 2006-08-28 CN CNB2006101120025A patent/CN100516352C/en active Active
Non-Patent Citations (2)
| Title |
|---|
| 科技演绎"神话"-记北京五洲燕阳公司总工程师董安礼. 前线，第4期. 2006 |
| 科技演绎"神话"-记北京五洲燕阳公司总工程师董安礼. 前线，第4期. 2006 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1912233A (en) | 2007-02-14 |
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