CN106283278A - A kind of method utilizing waste and old finished leather to extract corium fabric - Google Patents
A kind of method utilizing waste and old finished leather to extract corium fabric Download PDFInfo
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- CN106283278A CN106283278A CN201610746601.6A CN201610746601A CN106283278A CN 106283278 A CN106283278 A CN 106283278A CN 201610746601 A CN201610746601 A CN 201610746601A CN 106283278 A CN106283278 A CN 106283278A
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- particle powder
- intermittent stirring
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G11/00—Disintegrating fibre-containing articles to obtain fibres for re-use
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/02—Material containing basic nitrogen
- D06P3/04—Material containing basic nitrogen containing amide groups
- D06P3/32—Material containing basic nitrogen containing amide groups leather skins
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/66—Disintegrating fibre-containing textile articles to obtain fibres for re-use
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- Engineering & Computer Science (AREA)
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Abstract
The present invention relates to the production method of emulational leather fibrous raw material, a kind of method utilizing waste and old finished leather to extract corium fabric is provided, the method recycles Leather Waste, improve the utilization rate of resource, simultaneously improve production technology, can also save in the case of the quality making finished product reaches application standard and use water power consumption in a large number, promote that effects of energy saving and emission reduction highlights.A kind of method utilizing waste and old finished leather to extract corium fabric, comprises the following steps: (1) utilizes leather pulverizer that leftover pieces are ground into particle powder, and making grain diameter is 2～4mm；(2) particle powder is put in rotary drum and carry out dyeing process；(3) particle powder after dyeing being processed by formula wringer is utilized to be dehydrated；(4) utilize unhairing machine that the particle powder after dehydration is carried out hacking process.Become fiber floss.
Description
Technical field
The present invention relates to the production method of emulational leather fibrous raw material, particularly relate to one and utilize waste and old finished leather to extract
The method of corium fabric.
Background technology
Leather produced and inevitably produced substantial amounts of leftover pieces in kind, cannot normally make owing to leftover pieces specification is little
With, it is one of unavoidable cost of leather manufacturing enterprise, it is common that directly discard, creates the waste problem of resource；Due to
Leather leftover pieces pass through the main tan of heavy metal chromium and processed, and be no matter leftover pieces or retanning is skin waste and old after finished product
Leather, arbitrarily abandons and also can bring the problem polluting environment, and therefore processing discarded leather leftover pieces also becomes the trouble of manufacturing enterprise.
Therefore, the leftover pieces recycling Leather Waste and production are one of methods solving this problem, in prior art,
Generally these Leather Wastes are recycled into for making regenerated leather base fabric, PU leather or the bottom raw material of synthetic leather, namely
Fiber floss, also referred to as Corii Bovis seu Bubali floss；Its method for manufacturing is to include: the Leather Waste pulverization process first will collected, then will pulverize
Rear pieces of leather hacking becomes fine hair shape, then fine hair is carried out dyeing process, is dehydrated afterwards, dries, and to carry out once the most again
Hacking, makes the fiber fluffy processed through solution unfold, and reaching use standard just can become the raw fibre floss of preparation, regeneration leather, should
Production method dyes to tentatively becoming villous leather fiber, available preferably dyeing quality, but due to fine hair matter
Gently, dyeing needs use substantial amounts of water soaking to cover, be dehydrated afterwards, relatively big to the usage amount of water, make one ton of leather fiber
Water consumption about 20-25 ton, also will through second time hacking, fiber can be further worn out and result in flying dust, affect cellulosic
Sense, shortens fibre length and makes the emulational leather made second-rate, also can pollute workshop air, additionally, the consumption of hacking electric energy
Also production cost is greatly improved.
Summary of the invention
Therefore, for above content, the present invention provides a kind of method utilizing waste and old finished leather to extract corium fabric, should
Method recycles Leather Waste, improves the utilization rate of resource, simultaneously improves production technology, and reaching in the quality making finished product should
Can also save a large amount of water power consumption of using in the case of standard, promotion effects of energy saving and emission reduction highlights.
For reaching above-mentioned purpose, the present invention is achieved by the following technical solutions:
A kind of method utilizing waste and old finished leather to extract corium fabric, comprises the following steps:
(1) utilizing leather pulverizer that leftover pieces are ground into particle powder, making grain diameter is 2～4mm；
(2) particle powder is put in rotary drum and carry out dyeing process；
(3) particle powder after dyeing being processed by formula wringer is utilized to be dehydrated；
(4) utilize unhairing machine that the particle powder after dehydration is carried out hacking and be processed into fiber floss.
Further, wherein particle powder is carried out the step of dyeing process specifically by (2): I, softens and expands: by granule
Powder is put into rotary drum with water by the weight ratio of 1:3～3.5 and is soaked 50～70min, makes particle powder soften and expands；II, dyeing: a.
Based on the weight portion of particle powder, add 3～6% sodium bicarbonate of particle powder weight, 5～8% sodium formate, recall PH be 3.5～
6.5, soak 1.6～2.3h；B. addition 1～3% penetrating agent JFC, intermittent stirring places 0.4～0.6h；Addition 1～the ammonia of 3%,
0.8～1.2h is soaked after stirring；C. in 8～10.5h, add the stain of 4～8% in three times, and intermittent stirring is placed；D. add
Entering 3～7% artificial oil, intermittent stirring places 2～3.5h；Addition 2～3% color fixing agent, intermittent stirring places 1～3h.
Further, during wherein particle powder is carried out the step of dyeing process by (2), the Adding Way of c. stain is,
Being initially charged the stain of 1～3%, intermittent stirring places 5～6h, adds the stain of 2～3%, and intermittent stirring places 2～3h
After, water temperature is warming up to 50～60 DEG C, addition 1～the stain of 2%, intermittent stirring places 1～1.5h.
Further, wherein during particle powder is carried out the step of dyeing process by (2): II, dyeing: a. is by particle powder
Weight portion meter, adds 4% sodium bicarbonate, 6% sodium formate, soaks 2h；B. adding 1% penetrating agent JFC, intermittent stirring places 0.5h；Add
The ammonia of 1.5%, soaks 1h after stirring；C. the Adding Way of stain is, is initially charged the stain of 2%, and intermittent stirring is placed
5.5h, adds the stain of 1.5%, after intermittent stirring places 2.5h, water temperature is warming up to 55 DEG C, adds the stain of 1%,
1h is placed in stirring of having a rest；D. adding 5% artificial oil, intermittent stirring places 3h；Adding 2% color fixing agent, intermittent stirring places 3h.
Further, the particle powder after wherein dyeing is processed by (3) carries out in the step being dehydrated, and after dehydration, granule contains
Water rate is 50～60%.
Further, during wherein the particle powder after dehydration is carried out the step of hacking process by (4), the temperature during hacking
Degree is 150～160 DEG C, hacking complete after output fiber floss time use cold wind carry out air-cooled.
Further, wherein leftover pieces are ground in the step of particle powder by (1), and the particle diameter of particle powder is 3mm.
Further, wherein (2) particle powder is carried out dyeing process step it may also is that I, be equipped with staining solution:
Based on the weight portion of particle powder, be first equipped with solution with the water of 3～3.5 times of particle powders, add 3～6% sodium bicarbonate, 5～8%
Sodium formate, adds 1～3% penetrating agent JFC, adds 1～the ammonia of 3%, be eventually adding 2～3% stain be equipped to staining solution；
II, dyeing: a, in staining solution, add the particle powder of 1 weight portion, intermittent stirring places 2～4h；Afterwards by 2～the dye of 3%
Toner adds in 2～4h at twice；B, addition 3～7% artificial oil, intermittent stirring places 2～3.5h；C, addition 2～3% fixation
Agent, intermittent stirring places 1-3h.
Further, described in leading portion, the step that particle powder carries out dyeing process is by (2): I, be equipped with staining solution: press
The weight portion meter of particle powder, is first equipped with solution with the water of 3 weight portions, adds 4% sodium bicarbonate, 6% sodium formate, adds 1.5% and oozes
Agent JFC thoroughly, adds the ammonia of 1.5%, adds 2% stain afterwards and be equipped to staining solution；II, dyeing: a, in staining solution
Adding the particle powder of 1 weight portion, intermittent stirring places 4h；Adding 1% stain, intermittent stirring places 3h, by staining solution
Being warming up to 55, add 1% stain, intermittent stirring is placed 2h, b, is added 5% artificial oil, and intermittent stirring places 3h；C, addition 1% are admittedly
Toner, intermittent stirring places 2h.
By using preceding solution, the invention has the beneficial effects as follows: after the preparation method of the present invention directly will be pulverized
Leather dye, one time hacking becomes fibrous finished product, and relatively prior art has lacked hacking step, therefore a fiber in technique
Surface does not produce flying dust, and glossiness is good, not contaminated air；In dyeing processes, granule directly contaminates method and more first breaks into fiber and contaminate
Method not easy coloring, therefore, utilize PH regulation and penetrating agent JFC to soften granule, expands, gradation contaminates in granule
The heart, middle part, until outer surface, finally make the coloring effect of granule reach the degree no less than stock-dye method, can than hacking after stain
Save dyestuff further, finally, in hacking processes, process with higher temperature, its moisture rapid evaporation, the fibre weight obtained
Height, fibre length is long, and availability is higher, the emulational leather better quality made, and finally can take in time steam with cold wind, make
Adhesion between fiber disengages, fiber more Gabon pine, obtains high quality fibers fine hair, and the preparation method that the present invention provides is going out
Producing in equivalent fiber, have only to 3～5 tons with water, 20～25 tons of relatively prior art are greatly saved water consumption, in energy-saving and emission-reduction
On there is significant benefit.Additionally, fiber prepared by the present invention may be made with the cattle of skin emulation effect by weaving or nonwoven
Skin Down Fiber is removed from office, or makes yarn.
Detailed description of the invention
Describe embodiments of the present invention in detail below with reference to specific embodiment, whereby how the present invention is applied skill
Art means solve technical problem, and the process that realizes reaching technique effect can fully understand and implement according to this.
If not specializing, the conventional hands that the technological means employed in embodiment is well known to those skilled in the art
Section, the reagent used and product are also available commercial.The source of agents useful for same, trade name and be necessary to list it
Constituent person, all indicates when occurring first.
Embodiments of the invention one:
A kind of method utilizing waste and old finished leather to extract corium fabric, comprises the following steps:
Step (1), being pulverized by Leather Waste leftover pieces is particle powder, and grain diameter is 3mm；
Step (2), carries out dyeing process by particle powder；I, expansion is softened: put into by the weight ratio of 1:3 with water by particle powder
Rotary drum soaks 1h, makes particle powder soften and expands；II, dyeing: a. is based on the weight portion of particle powder, adds particle powder 4% weight
Sodium bicarbonate, 6% sodium formate, recalling PH is 5～6, soak 2h；B. adding 1% penetrating agent JFC, intermittent stirring places 0.5h；Add
The ammonia of 1.5%, soaks 1h after stirring；C. being initially charged the stain of 2%, intermittent stirring places 5.5h, adds the dyeing of 1.5%
Agent, after intermittent stirring places 2.5h, is warming up to 55 DEG C by water temperature, adds the stain of 1%, and intermittent stirring places 1h；D. 5% is added
Artificial oil, intermittent stirring places 3h；Adding 2% color fixing agent, intermittent stirring places 3h.
Step (3), the particle powder after dyeing being processed carries out in the step being dehydrated, and after dehydration, the moisture content of granule is
55%。
Step (4), the particle powder after dehydration is carried out hacking process by described (4), and the temperature during hacking is 155
DEG C, hacking complete after output fiber floss time use cold wind carry out air-cooled, obtain finished fiber floss.
Embodiment two:
A kind of method utilizing waste and old finished leather to extract corium fabric, comprises the following steps:
Step (1), being pulverized by Leather Waste leftover pieces is particle powder, and grain diameter is 2mm；
Step (2), carries out dyeing process by particle powder；I, expansion is softened: put by the weight ratio of 1:3.5 with water by particle powder
Enter rotary drum and soak 1.2h, make particle powder soften and expand；II, dyeing: a. is based on the weight portion of particle powder, adds particle powder
The sodium bicarbonate of 3% weight, 6% sodium formate, soak 1.6h；B. adding 1% penetrating agent JFC, intermittent stirring places 0.4h；Add the ammonia of 1%
Water, soaks 0.8h after stirring；C. being initially charged the stain of 1.5%, intermittent stirring places 3.5h, adds the stain of 1%, intermittently
After 2h is placed in stirring, water temperature being warming up to 55 DEG C, add the stain of 1%, intermittent stirring places 1h；D. 3% artificial oil is added,
2h is placed in stirring of having a rest；Adding 1.5% color fixing agent, intermittent stirring places 2h.
Step (3), the particle powder after dyeing being processed carries out in the step being dehydrated, and after dehydration, the moisture content of granule is
45%。
Step (4), the particle powder after dehydration is carried out hacking process by described (4), and the temperature during hacking is 150
DEG C, hacking complete after output fiber floss time use cold wind carry out air-cooled.
Embodiment three
A kind of method utilizing waste and old finished leather to extract corium fabric, comprises the following steps:
Leftover pieces are ground into particle powder by step (1), and grain diameter is 3mm；
Step (2), carries out dyeing process by particle powder: I, be equipped with staining solution: based on the weight portion of particle powder, first with
The water of 3 times of particle powder weight is equipped with solution, adds the sodium bicarbonate of particle powder 4% weight, 6% sodium formate, and recalling PH is 6, adds
1.5% penetrating agent JFC, adds the ammonia of 1.5%, adds 2% stain afterwards and be equipped to staining solution；II, dyeing: a, dyeing
Adding the particle powder of 1 weight portion in solution, intermittent stirring places 4h；Adding 1% stain, intermittent stirring places 3h, will dye
Color solution is warming up to 55, adds 1% stain, and intermittent stirring is placed 2h, b, added 5% artificial oil, and intermittent stirring places 3h；C, add
Entering 1% color fixing agent, intermittent stirring places 2h；
Step (3), the particle powder after dyeing being processed is dehydrated；After dehydration, the moisture content of granule is 60%.
Step (4), carries out hacking by the particle powder after dehydration and is processed into fiber floss；Temperature during hacking is 150
DEG C, hacking complete after output fiber floss time use cold wind carry out air-cooled.
In the various embodiments described above, Leather Waste is the leather of black after preferentially selecting sub-sieve, and stain preferentially selects " leather
Black 210 ", black leathers Color processed is good, consumption is few, cost is minimum, and wherein ammonia is the aqueous solution containing ammonia 25%～28%, its
Middle penetrating agent JFC can also be used with JFC-1, JFC-2 and substitutes, and wherein color fixing agent uses cationic quaternary, such as: hexadecyl
Pyridine, brocide.Above-mentioned materials are all commercially to be commercially available product.
Described above, only utilize the embodiment of this origination techniques content, any those skilled in the art to use this wound
Make modification, the change done, all belong to the scope of the claims that this creation is advocated, and be not limited to those disclosed embodiments.
Claims (9)
1. one kind utilizes the method that waste and old finished leather extracts corium fabric, it is characterised in that: comprise the following steps: (1) is by limit
Corner material is ground into particle powder, and grain diameter is 2～4mm；(2) particle powder is carried out dyeing process；(3) after dyeing being processed
Particle powder be dehydrated；(4) particle powder after dehydration is carried out hacking and be processed into fiber floss.
The method utilizing waste and old finished leather to extract corium fabric the most according to claim 1, it is characterised in that step
(2) concrete processing mode is: I, softens and expands: by the weight ratio of 1:3～3.5, particle powder is put into rotary drum with water and soaks 50
～70min, make particle powder soften and expand；II, dyeing: a. based on the weight portion of particle powder, add particle powder weight 3～
6% sodium bicarbonate, 5～8% sodium formate, recalling PH is 3.5～6.5, soaks 1.6～2.3h；B. addition 1～3% penetrating agent JFC, intermittently
Stirring places 0.4～0.6h；Addition 1～the ammonia of 3%, soak 0.8～1.2h after stirring；The most then in 8～10.5h, divide three
Secondary addition 4～the stain of 8%, and intermittent stirring placement；D. addition 3～7% artificial oil, intermittent stirring places 2～3.5h；Add
2～3% color fixing agent, intermittent stirring places 1～3h.
The method utilizing waste and old finished leather to extract corium fabric the most according to claim 1, it is characterised in that: step
(2) concrete processing mode is: I, be equipped with staining solution: based on the weight portion of particle powder, first with 3～3.5 times of granular powders
The water of end weight is equipped with solution, adds 3～6% sodium bicarbonate of particle powder weight, 5～8% sodium formate, adds 1～3% penetrating agent JFC,
Add 1～the ammonia of 3%, be eventually adding 2～3% stain be equipped to staining solution；II, dyeing: a, addition 1 in staining solution
The particle powder of weight portion, intermittent stirring places 2～4h；Afterwards the stain of 2～3% is added in 2～4h at twice；b、
Adding 3～7% artificial oil, intermittent stirring places 2～3.5h；C, addition 2～3% color fixing agent, intermittent stirring places 1-3h.
The method utilizing waste and old finished leather to extract corium fabric the most according to claim 2, it is characterised in that: step
(2) in, the Adding Way of c. stain is, is initially charged the stain of 1～3%, and intermittent stirring places 5～6h, adds 2～3%
Stain, intermittent stirring places after 2～3h, water temperature is warming up to 50～60 DEG C, adds 1～the stain of 2%, intermittent stirring
Place 1～1.5h.
The method utilizing waste and old finished leather to extract corium fabric the most according to claim 4, it is characterised in that: step
(2) in: II, dyeing: a. is based on the weight portion of particle powder, add 4% sodium bicarbonate of particle powder weight, 6% sodium formate, soak
2h；B. adding 1% penetrating agent JFC, intermittent stirring places 0.5h；Add the ammonia of 1.5%, after stirring, soak 1h；C. stain
Adding Way is, is initially charged the stain of 2%, and intermittent stirring places 5.5h, adds the stain of 1.5%, and intermittent stirring is placed
After 2.5h, water temperature being warming up to 55 DEG C, add the stain of 1%, intermittent stirring places 1h；D. 5% artificial oil, intermittent stirring are added
Place 3h；Adding 2% color fixing agent, intermittent stirring places 3h.
The method utilizing waste and old finished leather to extract corium fabric the most according to claim 3, it is characterised in that: step
(2), in: I, be equipped with staining solution: based on the weight portion of particle powder, first it is equipped with solution with the water of 3 times of particle powder weights, adds
Enter 4% sodium bicarbonate of particle powder weight, 6% sodium formate, add 1.5% penetrating agent JFC, add the ammonia of 1.5%, add 2% dye afterwards
Toner is equipped to staining solution；II, dyeing: a, in staining solution, add the particle powder of 1 weight portion, intermittent stirring is placed
4h；Adding 1% stain, intermittent stirring places 3h, and staining solution is warming up to 55, adds 1% stain, and intermittent stirring is placed
2h, b, adding 5% artificial oil, intermittent stirring places 3h；C, adding 1% color fixing agent, intermittent stirring places 2h.
7. according to the method utilizing waste and old finished leather extraction corium fabric described in claim 1～6 any claim, its
Being characterised by: in step (3), after dehydration, the moisture content of granule is 50～60%.
8. according to the method utilizing waste and old finished leather extraction corium fabric described in claim 1～6 any claim, its
Being characterised by: in step (4), the temperature during hacking is 150～160 DEG C, hacking complete after output fiber floss time use cold
Wind carries out air-cooled.
9. according to the method utilizing waste and old finished leather extraction corium fabric described in claim 1～6 any claim, its
Being characterised by: in step (1), described grain diameter is 3mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610746601.6A CN106283278B (en) | 2016-08-29 | 2016-08-29 | A method of corium fabric is extracted using waste and old finished leather |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610746601.6A CN106283278B (en) | 2016-08-29 | 2016-08-29 | A method of corium fabric is extracted using waste and old finished leather |
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| CN106283278A true CN106283278A (en) | 2017-01-04 |
| CN106283278B CN106283278B (en) | 2018-12-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114953825A (en) * | 2022-05-17 | 2022-08-30 | 兆丰(福建)新材料有限公司 | Method for manufacturing craft picture by utilizing leather leftover material recycling process |
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| CN1632188A (en) * | 2005-02-07 | 2005-06-29 | 苏立暖 | Process for making leather facing fabric suede and products made thereby |
| CN101182589A (en) * | 2007-11-16 | 2008-05-21 | 陕西科技大学 | Method of THP and multi-amino-compounds combining tanning leather |
| US20120133071A1 (en) * | 2009-08-18 | 2012-05-31 | Bader Gmbh & Co. Kg | Method for producing leather pellets and compound granules, and use thereof |
| CN102586899A (en) * | 2012-03-19 | 2012-07-18 | 山东德信皮业有限公司 | Method for extracting spinnable collagenous fiber from leather corner waste and waste leather |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1112618A (en) * | 1994-05-23 | 1995-11-29 | 郑铁成 | Producing method for artificial leather |
| CN1632188A (en) * | 2005-02-07 | 2005-06-29 | 苏立暖 | Process for making leather facing fabric suede and products made thereby |
| CN101182589A (en) * | 2007-11-16 | 2008-05-21 | 陕西科技大学 | Method of THP and multi-amino-compounds combining tanning leather |
| US20120133071A1 (en) * | 2009-08-18 | 2012-05-31 | Bader Gmbh & Co. Kg | Method for producing leather pellets and compound granules, and use thereof |
| CN102586899A (en) * | 2012-03-19 | 2012-07-18 | 山东德信皮业有限公司 | Method for extracting spinnable collagenous fiber from leather corner waste and waste leather |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114953825A (en) * | 2022-05-17 | 2022-08-30 | 兆丰(福建)新材料有限公司 | Method for manufacturing craft picture by utilizing leather leftover material recycling process |
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| CN106283278B (en) | 2018-12-04 |
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Effective date of registration: 20191211 Address after: 325000 No.11, Jinyuan Avenue, Mayuan Industrial Zone, Shuitou Town, Pingyang County, Wenzhou City, Zhejiang Province Patentee after: Wenzhou Dingyuan Leather Co., Ltd Address before: 362200, Quanzhou, Fujian province Anhai Mu leather area Patentee before: Fujian Yongsheng leather products Co., Ltd. |