CN1116259A - Continuous making method for PU (polyurethane) buckskin slice and products - Google Patents
Continuous making method for PU (polyurethane) buckskin slice and products Download PDFInfo
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- CN1116259A CN1116259A CN 94107973 CN94107973A CN1116259A CN 1116259 A CN1116259 A CN 1116259A CN 94107973 CN94107973 CN 94107973 CN 94107973 A CN94107973 A CN 94107973A CN 1116259 A CN1116259 A CN 1116259A
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- deerskin
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Abstract
Said method is that the special wet semi-product base material is made by wet method then slicing by splitting machine. The upper layer is deer leather sheet which can be directly used in front cover (such as: notebook and leather bag etc.), bound with non-weaving cloth for making sports shoes, and bound with knitted cloth for making clothes. The lower layer is PU deer leather with base cloth, which can be directly used in making shoes.
Description
The invention provides a kind of continous mode PU (polyurethane) deerskin manufacture method and finished product of cutting (Slice), utilize wet method to produce special wet type semi-finished product after be whittled into upper and lower two-layer difference by skiving machine but be all the product of PU deerskin, increase the value of deerskin.
The manufacture method of conventional P U deerskin is via wet type machine coating one deck PU coating by the fabric base cloth, via solidifying, washing, be dried into wet type semi-finished product base material, again via grinder once with wet type semi-finished product base material, secondary or three grindings form the PU deerskin, this method grinds off wet type semi-finished product substrate surface the thickness of 0.05～0.15mm in process of lapping, yet the base material top layer of grinding off, become some powder, though dust arrester is arranged to be collected, still have superfine dust to drift about with air, and pollute air, health is formed great harm, is a big deficiency of making PU deerskin method now.
In addition, in present PU deerskin manufacture method, needing wet type semi-finished product base material top layer is ground off, cause the waste of utility, improved production cost virtually, also is a big deficiency.
Once more, with general present manufacture method, its cloth thickness has all size, for example: base cloth thickness is as being 0.50～0.55mm, then wet type semi-finished product base material thickness is that 0.90～0.95mm gets final product, if will and will obtain with the method for " cutting ", during down two-layer available commodity, wet type semi-finished product base material thickness then needs more than 1.20mm, yet in the general classical production process because the PU coating of coating is blocked up, and coating solidified inside speed is slow, put into water after, surface and solidified inside speed difference, make that its hole (Porous) can be not upright, and cause wet type semi-finished product base material to be easy to generate water and hinder, Bao Feng etc. are unusual, also are big deficiencies.
Conventional P U deerskin manufacture method by above-mentioned has following shortcoming:
1, produce powder and cause air pollution, directly harm humans is healthy;
2, need the base material top layer is ground off, cause cost surging;
3, surface and solidified inside speed difference;
4, hole can not form uprightly;
5, wet type semi-finished product base material easily produces water wound, Bao Feng etc. unusually;
6, can only produce a kind of PU deerskin product.
The inventor finally works out the present invention's " continous mode PU deerskin manufacture method and finished product thereof of cutting (Slice) " because all deficiencies of above-mentioned conventional method through studying for many years, develop, developing meticulously, reach utilization professional knowledge.
Main purpose of the present invention is to provide a kind of and can produce powder and can not cause air-polluting PU deerskin manufacture method.
Of the present invention time a purpose is to provide a kind of method that reduces material cost.
Another object of the present invention is to provide a kind of hole is upright finished product.
A further object of the present invention is to provide a kind of unusual finished products such as water wound, Bao Feng that can not produce.
Another purpose of the present invention is to provide a kind of upper and lower two-layer finished product all salable commodity.
Another purpose of the present invention is that providing a kind of can produce two-layer different PU deerskin: the PU deerskin that a kind of surcharge is high and a kind of PU deerskin that contains fabric base cloth, effect as the Niu Bage (Nubuck Leather) of corium.
Another purpose of the present invention is to provide a kind of can directly the applying with split leather or Nonwovens or knitted cloth to make sport footwear, women's shoes, children's footwear material and the dress material finished product with material or notebook front cover, increases the purposes of this finished product.
Below in conjunction with accompanying drawing the present invention is elaborated.
Figure 1A and Figure 1B are wet type coating flow process chart of the present invention;
Fig. 2 is the flow process chart of peeling of the present invention.
Description of reference numerals:
1-wet type semi-finished product base material sends the 2-skiving machine
3-PU deerskin sheet (sheet) 4-PU deerskin
Manufacture method step of the present invention is divided into two big flow process A, B (as shown in Figure 1A and 1B), system The wet method step such as the described flow process A of Figure 1A that produce special wet type semi-finished product base material are earlier ((pressure is as 0～5 through aqueous treatment, pinch roller as 0.2～2.0mm) for thickness take the base cloth of weaving cotton cloth Kg), coating one behind one to ten the pressing wheel (wherein every temperature is 50～150 ℃) Special wet type coating, its thickness are that coating thickness adds that base cloth thickness is 1.0～2.0mm, Again through supersolidification (DMP concentration 0～50%, 5～40 ℃ of coolant-temperature gages), the washing (water temperature is 30～100 ℃), wheel load (pressure 0～5kg), one to 15 (every of preheating wheel Temperature is 50～200 ℃) after, again take the drying and shaping of temperature as 50～200 ℃, get final product To PU wet type semi-finished product, dope layer is fine porous layer.
The wet type paint ingredient of the special formulation of wherein mentioning in the above-mentioned manufacture method process is as follows: with the prescription of aforesaid manufacture method PU deerskin processed
The components matching ratio
One liquid wet type resin 90～110
D.M.F. 50～120
Non-ionic surfactant 1～5
Filler 1～20
Colorant 1～20
The PU damp process is after utilizing PU to coat the fabric base cloth, in solidification liquid, utilize chemical potential energy different of applied thing and solidification liquid, make the D.M.F. (Dimethylformamide in the applied thing, dimethyl formamide) with solidification liquid in water generates exchange, the surface of applied thing at a touch promptly begins to solidify (Gel) behind the water, this moment, solidified inside speed can become very slow, [be EO (ethylene oxide) by special non-ionic surfactant this moment, agent is adjusted in the foaming of PO (propylene) combined polymerization] adjust the foaming layer hole, make it upright, so just can be after " not cutting ", make the deerskin surface pore uneven and cause poor quality (substandard products).
The PU wet type semi-finished product of gained are sent 1 through wet type semi-finished product base material to be cut to skiving machine 2 and to be divided into two layers: the upper strata is that PU deerskin sheet (Sbeet) 3 and lower floor are PU deerskin 4.
Obtain two kinds of finished products by above-mentioned manufacture method flow process: PU deerskin sheet (Sheet) 3, PU deerskin 4.
Method among utilization the present invention " continous mode PU (polyurethane) deerskin manufacture method and the finished product of cutting (Slice) ", its advantage is:
1, do not need to be ground, save material cost.
2, do not grind the powder that produces, reduce air pollution, to reach the purpose of environmental protection.
3, can obtain two layers of PU deerskin that surcharge is high.
4, obtain the upright product of hole.
5, do not have the product generation of anomalies such as water wound, Bao Feng.
In addition, use in the upper and lower layer product of method gained of the present invention:
The upper strata: PU deerskin sheet (Sbeet) 3, can fit into general motion footwear material with Nonwovens, split leather etc., or fit into the material that dress material is used directly as the front cover top layer of notebook, suitcase etc. with knitted cloth.
Lower floor: PU deerskin 4, the deerskin that has base cloth can directly be used as the shoes material.
In sum, the present invention not only can reduce the pollution of working environment, and creates the higher PU deerskin sheet (sheet) of surcharge, has using value on the industry.
Claims (3)
1, a kind of continous mode PU (polyurethane) deerskin manufacture method of cutting (Slice) is characterized in that adopting wet method:
Earlier (thickness is 0.2～2.0mm) through aqueous treatment with the base cloth of weaving cotton cloth, (pressure is 0～5kg) to pinch roller, one to ten pressing wheel (wherein every temperature is 50～150 ℃) back coating one special wet type coating, its thickness is that coating thickness adds that base cloth thickness is 1.0～2.0mm, again through supersolidification (DMF concentration 0～50%, 5～40 ℃ of water temperatures), washing (temperature is 30～100 ℃), wheel load (pressure 0～5kg), behind one to 15 the preheating wheel (every temperature is 50～200 ℃), it by means of temperature again 50～200 ℃ drying and shaping, can obtain dope layer and be the PU wet type semi-finished product of fine porous layer, again wet type semi-finished product base material is delivered to skiving machine (Splitting Machine) and be whittled into and obtain final products.
2, a kind of continous mode PU according to claim 1 (polyurethane) deerskin manufacture method of cutting (Slice), wherein above-mentioned special wet type coating can be controlled dope layer (dry back) and reach more than the 0.7mm, and be upright hole, its prescription comprises: a liquid wet-type PU resin, DMF (Dimethyl formamide), water, teepol, non-ionic surfactant, filler, colorant, wherein each component ratio is (90～110): (50～120): (3～15): (1～5): (1～5): (1～20): (1～20).
3, a kind of product according to claim 1 or 2 described methods manufacturings is characterized in that wet type semi-finished product base material after skiving machine is whittled into, and the upper strata product that obtains is a PU deerskin sheet (sh-eet), and lower floor's product is the PU deerskin that has base cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94107973 CN1116259A (en) | 1994-07-20 | 1994-07-20 | Continuous making method for PU (polyurethane) buckskin slice and products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94107973 CN1116259A (en) | 1994-07-20 | 1994-07-20 | Continuous making method for PU (polyurethane) buckskin slice and products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1116259A true CN1116259A (en) | 1996-02-07 |
Family
ID=5033291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94107973 Pending CN1116259A (en) | 1994-07-20 | 1994-07-20 | Continuous making method for PU (polyurethane) buckskin slice and products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1116259A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100436703C (en) * | 2002-08-22 | 2008-11-26 | 帝人可多丽株式会社 | Leather like sheet material and method for production the same |
-
1994
- 1994-07-20 CN CN 94107973 patent/CN1116259A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100436703C (en) * | 2002-08-22 | 2008-11-26 | 帝人可多丽株式会社 | Leather like sheet material and method for production the same |
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