CN102586899A - Method for extracting spinnable collagenous fiber from leather corner waste and waste leather - Google Patents
Method for extracting spinnable collagenous fiber from leather corner waste and waste leather Download PDFInfo
- Publication number
- CN102586899A CN102586899A CN201210072696XA CN201210072696A CN102586899A CN 102586899 A CN102586899 A CN 102586899A CN 201210072696X A CN201210072696X A CN 201210072696XA CN 201210072696 A CN201210072696 A CN 201210072696A CN 102586899 A CN102586899 A CN 102586899A
- Authority
- CN
- China
- Prior art keywords
- leather
- waste
- fiber
- collagenous fibres
- leftover bits
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
Landscapes
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The invention belongs to the technical field of leather processing and particularly relates to a method for extracting spinnable collagenous fiber from leather corner waste and waste leather. The method comprises the steps of soaking and smashing collected leather corner waste and waste leather, adopting a wet method fiber extraction method to extract fiber from raw materials, processing the raw materials without adding chemical additives, and enabling the raw materials to be completely dissociated and loosened into collagenous fiber. Therefore, fiber output rate is high, the problem that extraction efficiency is low is resolved, separation evenness of fiber is improved, strength of leather collagenous fiber is guaranteed, and length distribution is even.
Description
Technical field
The invention belongs to the leather processing technical field, be specifically related to the extraction of a kind of leather leftover bits and waste and old leather and can spin the collagenous fibres method.
Background technology
China is universally acknowledged process hides and shoemaking big producing country; In recent years; The annual foreign exchange earning of development of China leather industry staple total value is about 30,000,000,000 dollars, and leather industry develops when creating remarkable benefit to national economy, brings huge burden and pressure also for environmental protection, the ecological balance.
Present tannery more than 90% adopts the chrome tanning master to tan.Mechanical processing process such as the repeatedly deburring behind chrome tanning, shaving, buffing can produce a large amount of chromium discarded objects (also claiming chrome leather slag, chrome shavinge) that contain inevitably.Its weight in wet base accounts for 50% of protide solid leather wastes, but dry weight (being protein content) accounts for more than 70%, and the handling problem of a large amount of chrome leather discarded objects at home and abroad is a difficult problem always.It is reported the annual process hides solid waste that produces 150,000 tons of India; About 60,000 tons of the annual chrome leather discarded object that produces of the U.S..China's leather output accounts for 1/5～1/4 of the world; Particularly leather industry cuts open wet blue and shaving technology; Chromium solid waste ratio was high, amount is many containing of producing; It is estimated produce more than 70 ten thousand tons (weight in wet base) present every year approximately contain chromium refuse, more than 140 ten thousand tons leather corner discarded object (comprise and contain the chromium leather castoff).These solid waste are one of key factors that cause the leather industry pollution, and the chromium in these discarded objects can cause serious pollution to soil and underground water.
Recovery to waste and old leather and fur products has caused people's great attention with utilization.Patent both domestic and external or report; Mostly be with the chrome leather discarded object behind mechanical treatment; Mix separately or with natural fabrics such as cotton, fiber crops, silks, produce leather plate, nonwoven fabric, artificial leather base material, blend fibre (felt and woollen goods) etc., also can be used as plastic filler and rubber reinforcing material.The great grade in ridge village of Japan is also utilized unique soundproof effect and the acoustic characteristic of leather fiber multihole material, develops acoustic material and loudspeaker horn.The application market of this series products is limited to very much, and added value is not high, and the sanitation performance of regenerated leather goods and all too late natural leather of intensity.
Along with the fast development of non-woven industry, kinds of fibers that can be non-woven is more and more, and the exploitation that can spin collagenous fibres has very big value to enriching the nonwoven products kind.
Patent CN200510032848.3 has made referrals to a kind of manufacturing approach of leather fibre based cloth; The waste and old leather of having mentioned in the literary composition animal's leather defect ware or leftover bits and pieces and recovery obtains leather fiber through processing; But need decolour to raw material, kinds of processes means such as classification handle; Technology is loaded down with trivial details, and will add additives such as degreasing agent and bleaching agent, can cause fiber self intensity to reduce.And use equipment is non-standard home-built equipment, is difficult for applying.
Patent CN200510038623.9 has made referrals to a kind of leather fiber separating machine, promptly the raw material leather is carried the used device of fiber, but this apparatus structure is complicated, and fiber output ratio is low, adopts this device fiber output ratio to have only 30～50%, and wastage of material is serious, and efficient is low.
Patents of invention such as patent CN200810060022.1, CN200610035347.5 and CN101935896A have also all been carried out the improvement and the renewal of equipment and method to the extraction of leather collagen fiber, but the effect of extraction efficiency, fiber length, intensity and the subsequent applications extracted is all unsatisfactory.The equipment of the more important thing is is non-standard equipment, is difficult to apply.
Summary of the invention
The purpose of this invention is to provide the extraction of a kind of leather leftover bits and waste and old leather and can spin the collagenous fibres method, the spun collagenous fibres that can take easy technology and standard industry equipment to obtain having excellent specific property, and fiber output ratio is high.
A kind of leather leftover bits of the present invention and waste and old leather extract can spin the collagenous fibres method, may further comprise the steps:
(1) raw material immersion: leather leftover bits or waste and old leather were steeped 1～2 day through water logging at normal temperatures;
(2) particle: soaked bulk raw is broken into the fritter that specification is 5～50 * 5～50cm;
(3) wet method is carried fiber: with particle and water according to mass ratio 1～5: 10 put into beater, and it is 200%～300% pasty state collagenous fibres that operation 30～90min obtains the water-filling degree;
(4) water squeezing is stretched: the pasty state collagenous fibres are layered on the through type wringing machine through water squeezing, and the moisture mass content is 50%～70% after the water squeezing;
(5) exhibition is fine: the collagenous fibres that obtain after the water squeezing are put into y type stainless steel rotary drum transfer 30～50min; Caking or agglomerating fiber are evacuated, unclamped, and the gentle ventilation unit that adds in the y type stainless steel rotary drum makes the collagenous fibres moisture mass content that machines be reduced to 30%～50% simultaneously;
(6) thick shredding, smart shredding: adopt existing processes that fiber is carried out shredding processing.
Wherein, what the present invention preferably adopted is the paper grade (stock) beater, and the model that can select for use is ZQFSr-23, ZQFSr-200, ZQFSr-800.Paper grade (stock) beater and leather fiber uncoiling machine are the machinery of different field, but the leather fiber uncoiling machine is a non-standard equipment, and the effect of extraction efficiency, fiber length, intensity and the subsequent applications extracted is all unsatisfactory, is difficult to apply.The applicant can tear the fiber separation of leather collagen cohesion under the waterpower circulation through the making beating cutter of test discovery paper grade (stock) beater; But must regulate beating time according to leather waste thickness, water status; Time is too short, and collagenous fibres can not fully separate; Overlong time, collagenous fibres are too short by the cutter cutting, so the assurance time is confirmed at 30～90min.In addition, the paper grade (stock) beater is a standard device, can conveniently promote.
The temperature of heating of y type stainless steel rotary drum is preferably 40～60 ℃, and ventilation volume is preferably 15L/h.
The invention has the advantages that: effectively reclaim leather leftover bits and waste and old leather, the method that adopts wet method to carry fiber is carried fibre to raw material on the paper grade (stock) beater, need not add chemical addition agent raw material is handled; Raw material can become collagenous fibres fully, fiber output ratio 90%～100%, thus solved the low problem of extraction efficiency; Improve the fiber separation uniformity, keep the intensity of leather collagen fiber, distribution of lengths is even; Reduce consuming, practice thrift cost.
Description of drawings
Fig. 1 is that 2000 times of sem photographs are amplified at the collagenous fibres A position of embodiment 1;
Fig. 2 is that 5000 times of sem photographs are amplified at the collagenous fibres A position of embodiment 1;
Fig. 3 is that 2000 times of sem photographs are amplified at the collagenous fibres B position of embodiment 1;
Fig. 4 is that 5000 times of sem photographs are amplified at the collagenous fibres B position of embodiment 1.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Embodiment 1:
Produce collagenous fibres according to following steps:
(1) raw material immersion: with steeping 2 days through water logging at normal temperatures behind leather leftover bits or the waste and old leather;
(2) particle: soaked bulk raw is broken into the fritter that specification is 10 * 20cm;
(3) wet method is carried fiber: particle and water are put into beater according to mass ratio at 3: 10, and it is 258% pasty state collagenous fibres that operation 60min obtains the water-filling degree;
(4) water squeezing is stretched: the pasty state collagenous fibres are layered on the through type wringing machine through water squeezing, and the moisture mass content is 64% after the water squeezing.
(5) exhibition is fine: the collagenous fibres that obtain after the water squeezing are put into y type stainless steel rotary drum transfer 50min; Caking or agglomerating fiber are evacuated, unclamped, and the gentle ventilation unit that adds in the y type stainless steel rotary drum makes the collagenous fibres moisture mass content that machines be reduced to 41% simultaneously;
(6) thick shredding, smart shredding: adopt existing processes that fiber is carried out shredding processing.
What wherein, present embodiment adopted is ZQFSr-800 paper grade (stock) beater.The temperature of heating of y type stainless steel rotary drum is 60 ℃, and ventilation volume is 15L/h.
Table 1: the strength test of obtained collagenous fibres (sample quantities is 40)
Table 2: the regain test (sample quantities is 1) of obtained collagenous fibres
| The sample title | Regain (%) | Reference standard |
| Collagenous fibres | 21.22 | GB/T?9995-1997 |
Table 3: the length testing of obtained collagenous fibres (sample quantities is 180)
| Project name | Mean value | Remarks |
| Length (cm) | 1.78 | CV value: 51.7% |
Table 4: the fineness test (sample quantities is 1502) of obtained collagenous fibres
| Project name | Mean value | Remarks |
| Fineness (μ m) | 9.11 | The CV value: 72.96% is converted into 4.33dtex |
Table 5: the degree of crystallinity test of obtained collagenous fibres
| Project name | Mean value |
| Degree of crystallinity | 30.41％ |
The collagenous fibres that the method that table 1 explanation is adopted makes do not receive the effect of chemicals, and each item pi of strength is superior to fibers such as cotton, hair, is a kind of desirable fiber-spinnable material.Table 2 shows that prepared fiber has moisture regain property, has good textile processibility ability.Table 3 shows that the average length of fiber is longer, possesses the textile processibility ability fully.Table 4 fineness value shows that this kind collagenous fibres are a kind of thinner fibers, have spinning property.Table 5 shows that the degree of crystallinity of collagenous fibres is about 30%, explains that crystalline texture accounts for about 30% in the chemical constitution of fiber, and fibre strength is had contribution, and this collagenous fibres not only have certain intensity, and certain flexibility is arranged, and possess the textile processibility ability.
Fig. 1～Fig. 4 is the electron-microscope scanning figure that the A of collagenous fibres picked at random, two positions of B are done, and it is rough to observe the collagenous fibres surface topography by figure, and trickle fibril is arranged, and is distributed in the surface, explains that fiber has certain cohesive force, and spinnability is strong.
Claims (4)
1. leather leftover bits and waste and old leather extract and can spin the collagenous fibres method, it is characterized in that may further comprise the steps:
(1) raw material immersion: leather leftover bits or waste and old leather were steeped 1～2 day through water logging at normal temperatures;
(2) particle: soaked bulk raw is broken into the fritter that specification is 5～50 * 5～50cm;
(3) wet method is carried fiber: with particle and water according to mass ratio 1～5: 10 put into beater, and it is 200%～300% pasty state collagenous fibres that operation 30～90min obtains the water-filling degree;
(4) water squeezing is stretched: the pasty state collagenous fibres are layered on the through type wringing machine through water squeezing, and the moisture mass content is 50%～70% after the water squeezing;
(5) exhibition is fine: the collagenous fibres that obtain after the water squeezing are put into y type stainless steel rotary drum transfer 30～50min; Caking or agglomerating fiber are evacuated, unclamped, and the gentle ventilation unit that adds in the y type stainless steel rotary drum makes the collagenous fibres moisture mass content that machines be reduced to 30%～50% simultaneously;
(6) thick shredding, smart shredding: adopt existing processes that fiber is carried out shredding processing.
2. leather leftover bits according to claim 1 and waste and old leather extract can spin the collagenous fibres method, it is characterized in that beater adopts the paper grade (stock) beater.
3. leather leftover bits according to claim 1 and waste and old leather extract can spin the collagenous fibres method, it is characterized in that the temperature of heating of y type stainless steel rotary drum is 40～60 ℃.
4. leather leftover bits according to claim 1 and waste and old leather extract can spin the collagenous fibres method, it is characterized in that the ventilation volume of y type stainless steel rotary drum is 15L/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210072696XA CN102586899B (en) | 2012-03-19 | 2012-03-19 | Method for extracting spinnable collagenous fiber from leather corner waste and waste leather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210072696XA CN102586899B (en) | 2012-03-19 | 2012-03-19 | Method for extracting spinnable collagenous fiber from leather corner waste and waste leather |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102586899A true CN102586899A (en) | 2012-07-18 |
| CN102586899B CN102586899B (en) | 2013-11-20 |
Family
ID=46476109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210072696XA Active CN102586899B (en) | 2012-03-19 | 2012-03-19 | Method for extracting spinnable collagenous fiber from leather corner waste and waste leather |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102586899B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087076A (en) * | 2016-08-29 | 2016-11-09 | 福建永盛皮革制品有限公司 | The method of leather collagen fiber and prepared leather collagen fiber is made with wet blue leftover pieces |
| CN106283278A (en) * | 2016-08-29 | 2017-01-04 | 福建永盛皮革制品有限公司 | A kind of method utilizing waste and old finished leather to extract corium fabric |
| CN107059142A (en) * | 2017-04-01 | 2017-08-18 | 顾勇杰 | A kind of overlength cattle-hide collagen fibers and its preparation method and application |
| CN107287975A (en) * | 2017-07-10 | 2017-10-24 | 广西驰胜农业科技有限公司 | A kind of processing method of discarded leather |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS514301A (en) * | 1974-07-01 | 1976-01-14 | Fujita Shoten Kk | SHOSHOKAISHUKORAAGENSENINO SEIZOHOHO |
| CN101063237A (en) * | 2006-04-30 | 2007-10-31 | 张立文 | Liquid opening machine |
| CN101235559A (en) * | 2008-02-29 | 2008-08-06 | 尹金良 | Method for producing leather fibre cotton and leather flocking machine |
| CN101935896A (en) * | 2010-07-30 | 2011-01-05 | 韩仕银 | Method for manufacturing leather fibers |
-
2012
- 2012-03-19 CN CN201210072696XA patent/CN102586899B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS514301A (en) * | 1974-07-01 | 1976-01-14 | Fujita Shoten Kk | SHOSHOKAISHUKORAAGENSENINO SEIZOHOHO |
| CN101063237A (en) * | 2006-04-30 | 2007-10-31 | 张立文 | Liquid opening machine |
| CN101235559A (en) * | 2008-02-29 | 2008-08-06 | 尹金良 | Method for producing leather fibre cotton and leather flocking machine |
| CN101935896A (en) * | 2010-07-30 | 2011-01-05 | 韩仕银 | Method for manufacturing leather fibers |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087076A (en) * | 2016-08-29 | 2016-11-09 | 福建永盛皮革制品有限公司 | The method of leather collagen fiber and prepared leather collagen fiber is made with wet blue leftover pieces |
| CN106283278A (en) * | 2016-08-29 | 2017-01-04 | 福建永盛皮革制品有限公司 | A kind of method utilizing waste and old finished leather to extract corium fabric |
| CN106283278B (en) * | 2016-08-29 | 2018-12-04 | 福建永盛皮革制品有限公司 | A method of corium fabric is extracted using waste and old finished leather |
| CN107059142A (en) * | 2017-04-01 | 2017-08-18 | 顾勇杰 | A kind of overlength cattle-hide collagen fibers and its preparation method and application |
| CN107059142B (en) * | 2017-04-01 | 2018-02-13 | 顾勇杰 | A kind of overlength cattle-hide collagen fibers and its preparation method and application |
| CN107287975A (en) * | 2017-07-10 | 2017-10-24 | 广西驰胜农业科技有限公司 | A kind of processing method of discarded leather |
| CN107287975B (en) * | 2017-07-10 | 2020-01-10 | 台州中知英健机械自动化有限公司 | Treatment method of waste leather |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102586899B (en) | 2013-11-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100494546C (en) | Preparation method of leather fiber based cloth | |
| WO2006026899A1 (en) | Yarn of leather and the process thereof | |
| CN100529201C (en) | Microbiological degumming method for mulberry fibre | |
| CN102586899B (en) | Method for extracting spinnable collagenous fiber from leather corner waste and waste leather | |
| CN102660844A (en) | Method for producing cowhide fiber base fabric | |
| CN106049073B (en) | UHMWPE fibre three-dimensionals compound nonwoven cloth is impregnated with the preparation method of the high-strength anti-stab synthetic leather bass of processing through water-base resin | |
| CN104894695B (en) | Can direct spinning with preparation method and the corium fabric leather of collagenous fibres | |
| WO2011077446A1 (en) | Process for recycling cotton fabrics | |
| CN107604739A (en) | A kind of filtering cotton stalk bark fiber and the preparation method of the compound nonwoven fabric of chitosan | |
| CN109576902B (en) | Cotton-hemp-soft towel blended spunlaced nonwoven material and preparation method thereof | |
| CN102995165B (en) | Underwater leather material disintegrator | |
| CN103088553A (en) | Degradable bio-fiber wiping material and preparation method thereof | |
| KR20130006435A (en) | Restoring leather and method for making the same | |
| CN108360102A (en) | Collagenous fibres composite yarn, preparation method and application and textile fabrics | |
| CN107287975A (en) | A kind of processing method of discarded leather | |
| CN1779002B (en) | Reducing leather base cloth with collagenous fiber and processing method thereof | |
| CN104264367A (en) | Animal fiber leather base material and manufacturing method thereof | |
| CN101185560A (en) | Purified cotton towel | |
| CN106087076B (en) | The method of leather collagen fiber and leather collagen fiber obtained are made with wet blue leftover pieces | |
| CN102517924B (en) | Manufacturing method of low-viscosity superfine polyamide chopped fiber glove leather | |
| KR101963083B1 (en) | Method of preparing eco-friendly regenerated cowhide | |
| CN103255506B (en) | Fine equipment is separated in a kind of cladding water | |
| CN205295662U (en) | Cow hide fiber base cloth is with footwork production line | |
| CN109537354A (en) | A kind of bamboo fibre and wood pulp spun lacing composite cleaning cloth and preparation method thereof | |
| CN102425018B (en) | Dermal collagen fiber prepared from tanning chromium-containing subsidiary waste |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |