CN102644161A - Generated leather base fabric and densification method thereof - Google Patents
Generated leather base fabric and densification method thereof Download PDFInfo
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- CN102644161A CN102644161A CN2012100867084A CN201210086708A CN102644161A CN 102644161 A CN102644161 A CN 102644161A CN 2012100867084 A CN2012100867084 A CN 2012100867084A CN 201210086708 A CN201210086708 A CN 201210086708A CN 102644161 A CN102644161 A CN 102644161A
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Abstract
The invention discloses a generated leather base fabric and a densification method thereof. A reticular layer consists of leather fibers and high-shrinkage fibers. By utilizing the common thermal shrinkage characteristic of the leather fibers and the high-shrinkage fibers, a shrinkage method in hot water is adopted after the reticular layer is mechanically needled and prefixed, so that the regenerated leather with apparent density of greater than 0.37/cm<3> is achieved. The regenerated leather prepared by adopting the process has the advantages of low cost, high quality and excellent comprehensive performance, can be widely applied to all natural leather products and becomes a supplementary material of natural leather.
Description
Technical field;
The present invention relates to the regenerated leather base cloth, relate in particular to a kind of stratum reticulare of forming by leather fiber and high-shrinkage fibre mixing.
Background technology;
Regenerated leather develops into now, develops into dry technology for production by the wet processing of original a kind of similar papermaking technology.It does not have wet processing stratum reticulare and adopts the natural emulsion adhesive to be blended in to reach fixed in the slurry.The technology of dry production is with fibrous leather fiber; For raw material is processed stratum reticulare; This stratum reticulare is further improved apparent density, make its goods more not still have not solution so far near the technology of natural leather, it has perplexed the insoluble technical barrier in this area always.
In the existing dry process for preparing regenerated leather technology; General acupuncture or the water thorn of adopting reaches preliminary fixed after its made stratum reticulare; In order further to process fine and close regenerated leather; Usually in stratum reticulare, sneak into technological means such as hot melt chemical fibre, dip bonding agent and hot extrusion, the result makes the quality of the goods hardboard that becomes, and this has just hindered its scope of application.Like the Chinese patent patent No.: 01113748.7 it be a kind of technology of dry process for preparing regenerated leather; Comprise: thermosetting fiber (thermosetting chemical fibre---polypropylene fiber in Instructions Page 2 the 11st row), lapping, hot melt adhesive, extrusion cooling are peeled off and produce, added to leather fiber.Wherein the thermosetting fiber is a kind of common polypropylene fibre chemical fibre.Can only adopt stratum reticulare in baking oven, to be heated to the fusing point of polypropylene fibre chemical fibre, make its melt and reach the bonding fixed of stratum reticulare, become regenerated leather with certain apparent density through cooling off extrusion modling.The problem that this technology exists is polypropylene fiber fusing in the stratum reticulare.Fixedly be bonded into little bulk body, make the performance of the regenerated leather hardboard that becomes.Its product can only be limited to the usefulness of the auxiliary material of minority, the end in using like the footwear among the embodiment.
Alternative method; Like the Chinese patent number of patent application: 2010102111811.8 " a kind of reducing leathers and preparation method thereof "; The stratum reticulare of this method is that to adopt a kind of single leather fiber be raw material, pass through a kind of product of processing into net, water thorn, thermal contraction processing.Its material leather fiber is with the corner of leather and good-for-nothing waste material; Through complicated physical and chemical processes; Received the effect of multiple mechanical force and processed; It is different from common textile fabric but a kind of length fineness differs, and the loose fiber bundle of obvious brooming is arranged, because the destruction of producing suffered multiple mechanical force in the process; The thing mechanical strength of this fibre bundle is died down, and the regenerated leather base cloth of therefore processing with this fiber also just can't use needle point method commonly used it to be carried out machinery is fixed can only to adopt the water acupuncture manipulation.Though water thorn and acupuncture all are a kind of mechanical consolidation methods, but the water acupuncture manipulation exists equipment investment big, energy consumption is high and shortcoming such as water pollution is arranged, and its processing cost is the several times of acupuncture, and simultaneously, the water acupuncture manipulation only is suitable for making stratum reticulare 200g/m
2Within slim stratum reticulare, also can improve its apparent density though handle in follow-up pyrocondensation, the raw material that is adopted is low intensive leather fiber, so the physical strength of made regenerated leather is poor.The big processing cost of above-mentioned investment is high, so energy consumption reaches this product of the low defective of product strength greatly and is difficult to apply owing to exist.
Goal of the invention:
In view of the defective that exists in the present dry process for preparing regenerated leather stratum reticulare technology; The present invention has adopted in the material of stratum reticulare except leather fiber; Added that price is low, good mechanical property, fibre fineness length homogeneous, and a kind of high-shrinkage fibre with the similar thermal contraction performance of leather fiber is arranged.High-shrinkage fibre is that report is arranged in the mixing of other chemical fibres of Nonwovens neutralization, but the leather fiber of it and unconventional textile fabric mixes the precedent that has no so far.Adopted the low needle point method of cost that stratum reticulare is carried out machinery in advance admittedly simultaneously, imposed the hot water pyrocondensation then and handle, made regenerated leather reach densification and have the good a kind of new product of apparent density high combination property.
Technical scheme:
The present invention is a kind of regenerated leather base cloth and method for densifying thereof; Its stratum reticulare material is that leather fiber and high-shrinkage fibre are formed; Leather fiber is handled through physics and chemistry with other good-for-nothing leather wastes by the leftover pieces of leather, and with the bundle fiber that the shredding of multiple tracks machinery is processed, high-shrinkage fibre is the thermal polycondensation ester fiber of modification; Two kinds of fibers with the leather fiber be main body by part than mixing the material of forming the regenerated leather base cloth, adopt machinery to become net or air lay to process stratum reticulare.This stratum reticulare carries out acupuncture with the mechanical needle acupuncture manipulation to it and has reached preliminary mechanical strength and the network structure with leather structural similarity.After this send into temperature and be in 90-100 ℃ the water and soak, stratum reticulare is reached shrink fine and close, drying in oven is sent in water squeezing then, and with the rod tube to its cooling and shaping that pressurizes, the apparent density of regenerated leather at this moment reaches greater than 0.37/cm
3, tearing strength is greater than the fine and close regenerated leather of 10KN/m.
Embodiment:
Embodiment one,
Leftover bits by the ox-hide leather; Bulk through becoming after the physics and chemistry processing; Produce leather fiber with mechanical shredding; The fiber process of producing can use the Chinese patent patent No.: 200810060022.1, and the Chinese patent patent No.: 200610035347.5, Chinese patent number of patent application: 201010247251.1 technology.The fiber of processing pencil with above-mentioned method is by it and mixed and modified thermal polycondensation ester fiber, and (specification: 1.5D, long 52 millimeters short fiber) is that the mixed ratio of main body is 8: 2 two kinds of fiber mixing with the leather fiber, and mixed fiber becomes net to process 300g/m through combing
2Stratum reticulare; Adopt the five road acupuncture processing of mechanical needle acupuncture manipulation; Make loose stratum reticulare tentatively reach fixed and have certain mechanical strength, use this stratum reticulare to send into that the time is 1-3 minute in 98 ℃ the hot water, make stratum reticulare receive thermal contraction fine and close; Shrinkage factor is 40%, and sending into drying in oven through water squeezing becomes the surfacing apparent density with rod tube extrusion shaping again and reach 0.5g/cm
3, tearing strength reaches 14KN/m, the regenerated leather of fracture strength 7KN/m.
Embodiment two
Leftover bits by leather (adopt embodiment one; Same process is produced leather fiber) produce leather fiber, by it and modified polyester pyrocondensation fiber, their mixed ratio is 6: 4 (employing embodiment one; Identical, become net, acupuncture, pyrocondensation to handle) process regenerated leather, its apparent density is 0.4g/cm
3, tearing strength is 12KN/m, fracture strength 6.2KN/m.
Technique effect:
After having adopted technical scheme of the present invention, solved the fine and close difficult problem of regenerated leather stratum reticulare of puzzlement always.Made regenerated leather finished product is an apparent density height.Physical strength is strong, and has the good and high-shrinkage fibre low cost of leather fiber sanitation performance.High-intensity overall merit, it is rationally complementary to reach two kinds of fibre properties, and particularly its Main physical index tearing strength is greater than 10
KN/ m, this is unforeseeable.Make it more near natural leather.Made goods just can be applied on the goods of all natural leathers.Thereby reach commercial purpose, make the waste material resource of leather obtain better recycle.
Claims (4)
1. regenerated leather base cloth and method for densifying thereof is characterized in that the material of regenerated leather base cloth, are made up of leather fiber and high-shrinkage fibre.
2. according to claim 1, the high-shrinkage fibre in the material of said composition regenerated leather base cloth is the polyester fiber that a kind of modification has the highly shrinkable ability.
3. according to claim 1, said method for densifying, after regenerated leather stratum reticulare process mechanical acupuncture is fixed, in 90-100 ℃ water, soak, its stratum reticulare is shunk reach fine and close.
4. according to claim 3, described method for densifying, through the water squeezing drying and shaping, make it reach apparent density greater than 0.37/cm with the base cloth after the hot water thermal shrink process
3Tearing strength is greater than the regenerated leather of 10KN/m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100867084A CN102644161A (en) | 2012-03-20 | 2012-03-20 | Generated leather base fabric and densification method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100867084A CN102644161A (en) | 2012-03-20 | 2012-03-20 | Generated leather base fabric and densification method thereof |
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| Publication Number | Publication Date |
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| CN102644161A true CN102644161A (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100867084A Pending CN102644161A (en) | 2012-03-20 | 2012-03-20 | Generated leather base fabric and densification method thereof |
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| CN (1) | CN102644161A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652138A (en) * | 2014-11-11 | 2015-05-27 | 韩宏宇 | Polyurethane artificial leather |
| CN105755845A (en) * | 2016-04-29 | 2016-07-13 | 石家庄百分百塑材制造有限公司 | Dermal fiber reclaimed leather for floor leather base layer and manufacturing method thereof |
| CN108893867A (en) * | 2018-09-14 | 2018-11-27 | 天津工业大学 | A kind of preparation method of tubular membrane polyimide nonwoven fabric |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11269751A (en) * | 1998-03-18 | 1999-10-05 | Asahi Chem Ind Co Ltd | Artificial leather and base fabric therefor |
| CN1599815A (en) * | 2001-11-30 | 2005-03-23 | B及H研究有限公司 | Formation of sheet material using hydroentanglement |
| CN101597865A (en) * | 2009-07-05 | 2009-12-09 | 韩仕银 | A kind of corium fabric leather and manufacturing technique thereof |
| CN101736520A (en) * | 2008-11-10 | 2010-06-16 | 丁晨妍 | Laminated material generated by entwisting and preparation method thereof |
| CN101851828A (en) * | 2010-01-16 | 2010-10-06 | 张立文 | Reducing leather and preparation method thereof |
| CN101935896A (en) * | 2010-07-30 | 2011-01-05 | 韩仕银 | Method for manufacturing leather fibers |
| CN102268782A (en) * | 2011-07-02 | 2011-12-07 | 杭州展宏纤维有限公司 | Method for producing leather fiber base cloth |
-
2012
- 2012-03-20 CN CN2012100867084A patent/CN102644161A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11269751A (en) * | 1998-03-18 | 1999-10-05 | Asahi Chem Ind Co Ltd | Artificial leather and base fabric therefor |
| CN1599815A (en) * | 2001-11-30 | 2005-03-23 | B及H研究有限公司 | Formation of sheet material using hydroentanglement |
| CN101736520A (en) * | 2008-11-10 | 2010-06-16 | 丁晨妍 | Laminated material generated by entwisting and preparation method thereof |
| CN101597865A (en) * | 2009-07-05 | 2009-12-09 | 韩仕银 | A kind of corium fabric leather and manufacturing technique thereof |
| CN101851828A (en) * | 2010-01-16 | 2010-10-06 | 张立文 | Reducing leather and preparation method thereof |
| CN101935896A (en) * | 2010-07-30 | 2011-01-05 | 韩仕银 | Method for manufacturing leather fibers |
| CN102268782A (en) * | 2011-07-02 | 2011-12-07 | 杭州展宏纤维有限公司 | Method for producing leather fiber base cloth |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652138A (en) * | 2014-11-11 | 2015-05-27 | 韩宏宇 | Polyurethane artificial leather |
| CN105755845A (en) * | 2016-04-29 | 2016-07-13 | 石家庄百分百塑材制造有限公司 | Dermal fiber reclaimed leather for floor leather base layer and manufacturing method thereof |
| CN105755845B (en) * | 2016-04-29 | 2018-05-25 | 石家庄百分百塑材制造有限公司 | It is a kind of for corium fabric regenerated leather of flooring laminate base and preparation method thereof |
| CN108893867A (en) * | 2018-09-14 | 2018-11-27 | 天津工业大学 | A kind of preparation method of tubular membrane polyimide nonwoven fabric |
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Application publication date: 20120822 |