CN101333771B - Method of preparing fibre composite sheet - Google Patents
Method of preparing fibre composite sheet Download PDFInfo
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- CN101333771B CN101333771B CN 200810063770 CN200810063770A CN101333771B CN 101333771 B CN101333771 B CN 101333771B CN 200810063770 CN200810063770 CN 200810063770 CN 200810063770 A CN200810063770 A CN 200810063770A CN 101333771 B CN101333771 B CN 101333771B
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- composite sheet
- pulse laser
- fibre composite
- lamination
- manufacture method
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Abstract
The invention discloses a manufacturing method of a fiber composite sheet, which is characterized in that the fiber composite sheet is made of a fibrous body and a polymer elastic body by lamination. After the lamination, the composite sheet is scanned by a high speed scanning vibration mirror using a pulse laser, the pulse laser is kept in a light emitting state in the scanning process of the high speed scanning vibration mirror; and the scanning speed of the high speed scanning vibration mirror is matched with the pulse frequency of the pulse laser, making the composite sheet get discrete micro-pores after scanning. The fiber composite sheet made using the manufacturing method has even apertures of pores made on the polymer elastic body, and air permeability performance and moisture absorption are controlled by adjusting density and size of the pores to meet the requirements of different purposes. The manufacturing method is applicable to linings, cloths and shoe leather for replacing natural leather.
Description
Technical field
The present invention relates to be suitable as the manufacture method of the fibre composite sheet of natural leather sub, specifically, relating to is to adopt the manufacture method of laser to perforate on the fibre composite sheet goods.
Background technology
In recent years, owing to natural corium process industry is polluted greatly, high the obtaining of cost limited.So, substitute as natural leather, the fibre composite sheet that the sheet material that lamination is made of macromolecular elastomer on the substrate surface that with the aggregate of fibers is the main composition composition obtains because, light, non-ironing, lower-price characteristic, on the dress material, used widely on the footwear.In these field application processes, for making its performance better, generally all this fibre composite sheet to be made the sheet material that can breathe freely and can seep water, because its aggregate of fibers itself is exactly ventilative seepage material, thereby also must on macromolecular elastomer, carry out the texturing drilling, this drilling also will make people's naked eyes not see; When making it be laminated on the corpus fibrosum, the infiltration of also breathing freely of its sheet material.In general, the breadth of this composite sheet is 1300～1400mm, and the speed of carrying out lamination on equipment is 5～6m/min.Can not see that for making drilling human eye under the aperture of its drilling needs less than 0.1mm not by the situation of foreign object.For ventilative impermeable composite sheet, its requirement is higher.The method of at present macromolecular elastomer being carried out drilling is coated with N on the base material that fiber constitutes, the polyurethane resin solution of dinethylformamide (DMF) for dissolving in the organic solvent of main body, it is solidified, form the little porous sheet that constitutes by macromolecular elastomer.Though the sheet material that obtains with this method can obtain little porous sheet, the size in hole can not evenly be kept the size of micropore along with away from the interface of water and increase on whole sheet material.Look into Chinese patent database, one notification number is CN1260428C, denomination of invention is in the patent of invention text of " porous sheet material, fibre composite sheet and manufacture method thereof ", the manufacture method of porous matter sheet material is disclosed, it is that modulation contains macromolecular elastomer 1 and the stable aqueous dispersions 1 of the hydrophobic particles that is made of fluorine-type resin or silicon resinoid, moisture content after 60-90 ℃ temperature and preparation heating reaches under the condition that moisture is 20-80wt%, preparation heating aqueous dispersions 1, then remove moisture, and on macromolecular elastomer, obtain micropore.Its stable extreme difference of the method for this drilling is difficult to keep consistency on technology, and the size and the density in hole are uncontrollable, and the macromolecular elastomer ABRASION RESISTANCE that obtains is very poor.In addition, adopt this method to make its production efficiency very low.In Chinese patent database, a kind of denomination of invention is " a kind of polyurethane synthetic leather grain surface paste and preparation method thereof ", publication number is in the application for a patent for invention of CN166852A, these disclosed methods all are to adopt the method for chemistry to obtain making to have micropore on the macromolecular elastomer, and equally also there is above-mentioned shortcoming in it.
Summary of the invention
The deficiency that exists in view of background technology, originally to provide a kind of micropore uniformity strong for the technical problem that will solve, aperture, controllable density, the manufacture method of the fibre composite sheet that ABRASION RESISTANCE is high.
For this reason, the present invention takes following technical scheme to realize: a kind of manufacture method of fibre composite sheet, it is characterized in that described fibre composite sheet is formed by corpus fibrosum and macromolecular elastomer lamination, behind the lamination, adopt pulse laser composite sheet to be scanned by the high-velocity scanning galvanometer, described high-velocity scanning galvanometer is in scanning process, and described pulse laser keeps light state always; The sweep speed of described high-velocity scanning galvanometer and the pulse frequency of described pulse laser are complementary, and make composite sheet obtain the micropore that disperses after overscanning.
Has infrared absorbing agents in the described macromolecular elastomer.
The pulse frequency of described pulse laser is greater than 10KHZ.
It is 0.76～14 μ m infrared laser that described pulse laser produces optical maser wavelength.
In the process of scanning, the composite sheet behind the lamination can transmit continuously by feed mechanism, and adjusts scan rate of vibrating mirror according to the speed of feeding.
The fibre composite sheet product that adopts the present invention to obtain, macromolecular elastomer on it is not subjected to the doping of industrial chemicals, adopt the method for physics, keep its original ABRASION RESISTANCE, utilize the pulse characteristic of pulse laser, by adjusting the spacing that sweep speed and pulse frequency are regulated micropore, the high-velocity scanning galvanometer is in scanning process, pulse laser keeps light state always, makes pulse laser to punch continuously on macromolecular elastomer, keeps the uniformity of micropore spacing; And can adjust the size that distance between laser instrument and the sheet material is adjusted the footpath of punching, aperture and pitch-row are easy to control, realize the controllability of ventilative and moisture absorption, adopt laser scans simultaneously after, the micropore uniformity that it obtains dispersing is strong; In macromolecular elastomer, add infrared absorbing agents, make macromolecular elastomer can better absorb, have better punching effect the laser that infrared laser takes place; And adjust sweep speed according to the speed of feeding, make to reach about 40000 micropores in every square centimeter of the macromolecular elastomer; Can be widely used in lining, dress material, footwear leather, to replace natural leather.
The specific embodiment
The manufacture method of this fibre composite sheet, be that fibre composite sheet is formed by corpus fibrosum and macromolecular elastomer lamination, described corpus fibrosum is the pencil nylon ultrafine fiber, described macromolecular elastomer is a polyurethane resin, has infrared absorbing agents in the described macromolecular elastomer, to strengthen the function that absorbs infrared laser, improve the punching effect; Behind the lamination, adopt pulse laser composite sheet to be scanned by the high-velocity scanning galvanometer, described high-velocity scanning galvanometer is in scanning process, its pulse laser keeps light state always, the pulse frequency of described pulse laser is greater than 10KHZ, the sweep speed of described high-velocity scanning galvanometer and the pulse frequency of described pulse laser are complementary, and make composite sheet obtain the micropore that disperses after overscanning.It is the infrared laser of 0.76～14 μ m that described pulse laser produces optical maser wavelength.Scanning resulting micropore spacing can calculate according to formula 1=v/f, in the formula, and the spacing of 1 expression micropore, the pulse frequency of f indicating impulse laser instrument, v represents the sweep speed of galvanometer.For satisfying above-mentioned condition, it is very important selecting a suitable laser instrument, in the present embodiment, pulse laser strobe pulse optical fiber laser, pulse optical fiber has the advantages that facular model is good, pulse frequency is high, go out good light stability, it is the infrared laser of 1.06 μ m that pulse optical fiber produces wavelength, pulse frequency 20K-80KHZ; The maximum sweep rate v of selected high-velocity scanning galvanometer is 20m/s.According to above-mentioned formula, when the speed of scanning galvanometer was 20m/s, available micropore spacing was 1mm to the maximum, and minimum is 0.25mm; When sweep speed was 10m/s, available micropore spacing was 0.5mm to the maximum, and minimum is 0.125mm, as seen can adjust the spacing of micropore by the coupling of sweep speed and pulse frequency, satisfied the requirement to pore density.In the process of scanning, the composite sheet behind the lamination can pass through the continuous transmission of feed mechanism, and adjusts scan rate of vibrating mirror according to the speed of feeding; The speed of feeding is fast more, then the sweep speed of galvanometer also should be fast more, guarantee the micropore amount that contains on every square centimeter of macromolecular elastomer with this, and can be according to this adjusting by speed, making on request to breathe freely can moisture absorption get composite sheet again, also can make the non-hygroscopic composite sheet that gets of breathing freely; Described high-velocity scanning galvanometer is in scanning process, and pulse laser keeps light state always, thereby its discrete micropore size and spacing is very even.
In the present embodiment, comprise pulse laser, the probe that the high-velocity scanning galvanometer is formed, the sweep limits of single probe can be selected in 50～300mm scope by selecting different flat field focus lamps, on laminating apparatus, select several probes to install point-blank side by side according to the size of composite sheet breadth, the breadth of general this composite sheet is 1300mm～1400mm, sweep limits by each probe in the present embodiment is 200mm, selecting 7 probes to install side by side gets final product, behind corpus fibrosum and macromolecular elastomer lamination, when passing through the laser head below with the speed of 6m/min, probe begins scanning, pulse laser is bright dipping always, and macromolecular elastomer is punched.The method of this employing physics is punched to macromolecular elastomer, neither damage the surface of macromolecular elastomer, do not reduce the ABRASION RESISTANCE of macromolecular elastomer yet, behind this macromolecular elastomer and described corpus fibrosum lamination that has a micropore, improved the ventilative and water vapour permeability of fibre composite sheet, resulting synthetic leather almost matches in excellence or beauty with corium, has vast market prospect.
Claims (5)
1. the manufacture method of a fibre composite sheet, it is characterized in that described fibre composite sheet is formed by corpus fibrosum and macromolecular elastomer lamination, behind the lamination, adopt pulse laser composite sheet to be scanned by the high-velocity scanning galvanometer, described high-velocity scanning galvanometer is in scanning process, and described pulse laser keeps light state always; The sweep speed of described high-velocity scanning galvanometer and the pulse frequency of described pulse laser are complementary, and make composite sheet obtain the micropore that disperses after overscanning.
2. the manufacture method of fibre composite sheet according to claim 1 is characterized in that having infrared absorbing agents in the described macromolecular elastomer.
3. the manufacture method of fibre composite sheet according to claim 1, the pulse frequency that it is characterized in that described pulse laser is greater than 10KHZ.
4. the manufacture method of fibre composite sheet according to claim 1 is characterized in that it is 0.76～14 μ m infrared laser that described pulse laser produces optical maser wavelength.
5. the manufacture method of fibre composite sheet according to claim 1, its feature is in the process of scanning, and the composite sheet behind the lamination can transmit continuously by feed mechanism, and adjusts scan rate of vibrating mirror according to the speed of feeding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810063770 CN101333771B (en) | 2008-07-29 | 2008-07-29 | Method of preparing fibre composite sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810063770 CN101333771B (en) | 2008-07-29 | 2008-07-29 | Method of preparing fibre composite sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101333771A CN101333771A (en) | 2008-12-31 |
| CN101333771B true CN101333771B (en) | 2011-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810063770 Expired - Fee Related CN101333771B (en) | 2008-07-29 | 2008-07-29 | Method of preparing fibre composite sheet |
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| Country | Link |
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| CN (1) | CN101333771B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018537294A (en) * | 2015-12-18 | 2018-12-20 | キンバリー クラーク ワールドワイド インコーポレイテッド | Laser cutting method for web structure |
| CN107385942B (en) * | 2017-09-06 | 2020-06-05 | 苏州瑞高新材料有限公司 | Three-dimensional multicolor simulated leather for automobiles and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2562917Y (en) * | 2002-09-30 | 2003-07-30 | 华中科技大学 | Laser punching device for plaster material |
| CN1857845A (en) * | 2006-05-25 | 2006-11-08 | 上海市激光技术研究所 | Perforator for dropper belt controlling scan rate of vibrating mirror |
-
2008
- 2008-07-29 CN CN 200810063770 patent/CN101333771B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2562917Y (en) * | 2002-09-30 | 2003-07-30 | 华中科技大学 | Laser punching device for plaster material |
| CN1857845A (en) * | 2006-05-25 | 2006-11-08 | 上海市激光技术研究所 | Perforator for dropper belt controlling scan rate of vibrating mirror |
Non-Patent Citations (1)
| Title |
|---|
| 丁双山等.人造革与合成革.《人造革与合成革》.中国石化出版社,1998,(第一版),1、4. * |
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| CN101333771A (en) | 2008-12-31 |
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