CN107099884A - A kind of kraft fibers production technology - Google Patents
A kind of kraft fibers production technology Download PDFInfo
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- CN107099884A CN107099884A CN201710222270.0A CN201710222270A CN107099884A CN 107099884 A CN107099884 A CN 107099884A CN 201710222270 A CN201710222270 A CN 201710222270A CN 107099884 A CN107099884 A CN 107099884A
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- Prior art keywords
- beaten
- mashing
- kraft fibers
- freedom
- production technology
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Classifications
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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
-
- 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
Abstract
The invention belongs to textile technology field, and in particular to a kind of kraft fibers production technology, including sorting, dipping, with alkali, dipping, preceding skiving, rear mashing, defibrination, and pulp presses water through squeezer again, the step such as shredding.The kraft fibers production method that the present invention is provided, making full use of the offcut of leather turns waste into wealth, and not only reduces production cost, and also reduce the pollution to environment.Kraft fibers quality is good made from this method, and preferably, its length and fineness degree uniformity are high for elasticity.
Description
Technical field
The invention belongs to textile technology field, and in particular to a kind of kraft fibers production technology.
Background technology
In recent years, with the improvement of living standards, leather permeability, water imbibition, elastic preferable, soft handle etc.
Advantage make it that the application of leather and fur products is increasingly extensive, and the demand to leather material is growing day by day both at home and abroad.But with resource,
The global ecological problem such as environment it is increasingly serious, development of China leather industry be faced with " sustainable development " strategy sternness choose
War.The a large amount of offcuts produced in leathercraft production process are not recycled fully, and a part is only allowed to as waste material
Environment is polluted, another part, with used for other purposes, such as prepares medical gelatin or production capsule by criminal.At the routine of discarded cladding
Reason method is：Leather leftover pieces prepare medical gelatin or capsule with industry after being clayed into power with pulverizer, also have as animal feed,
Most direct burning disposals of leftover pieces.And the solid waste such as onal leftover pieces is mainly constituted as kraft fibers, kraft fibers are
A kind of good natural fiber, it is antistatic, the features such as anti-fire is strong with hygroscopicity is strong, soft, free from extraneous odour, subsequently can be with
Fabric is made, base fabric or other purposes are either made by nonwoven fabric technology, not only avoids waste, saved cost, and
And waste material is taken full advantage of, reduce pollution of the waste material for environment.Reusing for leather leftover pieces is generally required to it
Handled, to be combined with other materials or Application of composite, conventional processing method can not meet or can not reach
To the purpose with other materials Application of composite.
The content of the invention
It is an object of the invention to provide a kind of kraft fibers production technology, ox-hide leftover pieces can be effectively recycled, should
The kraft fibers that method is obtained are functional, and size, fibre length and fineness degree uniformity are high.
The technical solution adopted by the present invention is：A kind of kraft fibers production technology, it is characterised in that comprise the following steps：
(1) sorting, dipping：Ox-hide leftover pieces input stock tank is chosen, adds water and impregnates 30 minutes；
(2) with alkali, dipping：Ox-hide leftover pieces after step (1) is soaked are put into the water containing HY-PA bleeding agents, NaOH
Soaked in solution, then through rolling extrusion, skiving, make hide fiber uniform after circulating several times；
(3) skiving before：Through steep-taper jordan, through being repeatedly beaten, mashing is completed, and is carried out after water washing, is beaten after rear entrance
Slurry；
(4) it is beaten afterwards：Skiving is completed after being beaten through steep-taper jordan；
(5) defibrination：Double disc refiner is transferred to again carries out defibrination；
(6) pulp：Pulp after defibrination, then press water through squeezer；
(7) shredding：The latex after water is pressed through willy.
Further preferably, the step (2) with alkali temperature control between 30-60 DEG C, using relative oven dry stock amount as
16%-17% NaOH and relative oven dry stock amount prepare alkali lye for 0.45-0.5% HY-PA bleeding agents, and ox-hide leftover pieces are with matching somebody with somebody
The ratio between alkaline liquid 1: 4-4.5.
Further preferably, the step (3) includes 3 pulping process：A, through steep-taper jordan, electricity is beaten for the first time
Flow control is in 260-209A, and slurry concentration control is completed to be beaten for the first time, surveyed in 1.5-1.9%：Freedom 730-740ml, fiber
Length 59-68%；After b, for the first time mashing, carry out second and be beaten, current control is controlled in 1.5- in 280-320A, slurry concentration
1.9%, complete after second of mashing, survey：Freedom 719-729ml, fibre length 50-58%；After c, second of mashing, carry out
Third time is beaten, and current control completes third time and be beaten, survey in 290-330A, slurry concentration control in 1.5-1.9%：Freedom
700-718ml, fibre length 42-49%.
Further preferably, the steep-taper jordan current control of the step (4) is in 240-280A, and slurry concentration control exists
2.0-3.0%；Survey：Freedom 680-700ml, fibre length 35-42%.
Further preferably, the double disc refiner current control of the step (5) is in 320-380A, and slurry concentration control exists
2.0-3.0%；Survey：Fibre length 20-35%, freedom 650-680ml.
The ox-hide leftover pieces of the present invention are selected from head layer ox-hide, two layers of ox-hide and three layers of ox-hide, by containing sodium hydroxide
After the immersion for the alkali lye being made into HY-PA bleeding agents, alkali lye is fully penetrated into fibrous inside, make ox-hide softening and expanded, keep away
Exempt to destroy fibre strength in pulping process, the soft finished leather fibr tissue consolidation of leather of the leather after tanning stuffing, extension
Property small, good moldability, high resilience.
The present invention by the mashing of multiple skiving, after mashing and defibrination can to obtain the suitable ox-hide of length, fineness degree fine
Dimension, fibre length is oversize, and the uniformity cannot ensure that fibre length is too short in fabrication processes, and the intensity of spun lacing cannot reach
To requiring.Fiber is too thin, and fibrous elasticity cannot ensure, the too thick then combined strength bination of fiber it cannot be guaranteed that.
The beneficial effects of the invention are as follows：The kraft fibers production method that the present invention is provided, makes full use of the corner of leather
Particle is turned waste into wealth, and not only reduces production cost, and also reduce the pollution to environment.Kraft fibers made from this method
Quality is good, and preferably, its length and fineness degree uniformity are high for elasticity.
Embodiment
Implement row 1
(1) sorting, dipping：Two layers of ox-hide leftover pieces input stock tank are chosen, adds water and impregnates 30 minutes；
(2) with alkali, dipping：Ox-hide leftover pieces after step (1) is soaked are put into the HY- that relative oven dry stock amount is 0.45%
PA bleeding agents, relative oven dry stock amount is soak in the 16% NaOH aqueous solution, the ratio between ox-hide leftover pieces and preparation alkali lye 1: 4,
Again through rolling extrusion, skiving, make hide fiber uniform after 3 times circulate；
(3) skiving before：Through steep-taper jordan, through 3 mashing：A, through steep-taper jordan, mashing electric current control for the first time
System is in 260A, and slurry concentration control is completed to be beaten for the first time, surveyed 1.5%：Freedom 730ml, fibre length 68；B, first time
After mashing, second of mashing is carried out, current control is completed after second of mashing, surveyed 1.5% in 280A, slurry concentration control：Trip
From degree 719ml, fibre length 58%；After c, second of mashing, third time mashing is carried out, current control starches concentration control in 290A
System completes third time and is beaten, survey 1.5%：Freedom 700ml, fibre length 49%.Mashing is completed, and carries out water washing laggard
It is beaten after entering.
(4) it is beaten afterwards：Skiving is completed after being beaten through steep-taper jordan；Steep-taper jordan current control exists
240A, slurry concentration control is 2.0%；Survey：Freedom 680ml, fibre length 42%.
(5) defibrination：Double disc refiner is transferred to again carries out defibrination；Double disc refiner current control is in 320A, slurry concentration control
2.0%；Survey：Fibre length 35%, freedom 650ml.
(6) pulp：Pulp after defibrination, then press water through squeezer；
(7) shredding：The latex after water is pressed through willy.
Acquisition fibre length is 1-5mm, and fineness degree is 0.5mm or so kraft fibers.The kraft fibers length and thickness
Degree meets the requirement with other materials Application of composite.
Implement row 2
(1) sorting, dipping：Two layers of ox-hide leftover pieces input stock tank are chosen, adds water and impregnates 30 minutes；
(2) with alkali, dipping：Ox-hide leftover pieces after step (1) is soaked are put into the HY- that relative oven dry stock amount is 0.5%
PA bleeding agents, relative oven dry stock amount is soak in the 17% NaOH aqueous solution, the ratio between ox-hide leftover pieces and preparation alkali lye 1: 4,
Again through rolling extrusion, skiving, make hide fiber uniform after 3 times circulate；
(3) skiving before：Through steep-taper jordan, through 3 mashing：A, through steep-taper jordan, mashing electric current control for the first time
System is in 290A, and slurry concentration control is completed to be beaten for the first time, surveyed 1.9%：Freedom 740ml, fibre length 59；B, first time
After mashing, second of mashing is carried out, current control is completed after second of mashing, surveyed 1.9% in 320A, slurry concentration control：Trip
From degree 729ml, fibre length 50%；After c, second of mashing, third time mashing is carried out, current control starches concentration control in 330A
System completes third time and is beaten, survey 1.9%：Freedom 718ml, fibre length 42%.Mashing is completed, and carries out water washing laggard
It is beaten after entering.
(4) it is beaten afterwards：Skiving is completed after being beaten through steep-taper jordan；Steep-taper jordan current control exists
280A, slurry concentration control is 3.0%；Survey：Freedom 700ml, fibre length 35%.
(5) defibrination：Double disc refiner is transferred to again carries out defibrination；Double disc refiner current control is in 380A, slurry concentration control
3.0%；Survey：Fibre length 20%, freedom 680ml.
(6) pulp：Pulp after defibrination, then press water through squeezer；
(7) shredding：The latex after water is pressed through willy.
Acquisition fibre length is 1-5mm, and fineness degree is 0.5mm or so kraft fibers.The kraft fibers length and thickness
Degree meets the requirement with other materials Application of composite.
Described above only to express the preferred embodiment of the present invention, it describes more specific and in detail, but can not be because
This and be interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art,
On the premise of not departing from present inventive concept, some deformations can also be made, improves and substitutes, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (5)
1. a kind of kraft fibers production technology, it is characterised in that comprise the following steps：
(1) sorting, dipping：Ox-hide leftover pieces input stock tank is chosen, adds water and impregnates 30 minutes；
(2) with alkali, dipping：Ox-hide leftover pieces after step (1) is soaked are put into the aqueous solution containing HY-PA bleeding agents, NaOH
Middle immersion, then through rolling extrusion, skiving, make hide fiber uniform after circulating several times；
(3) skiving before：Through steep-taper jordan, through repeatedly mashing, mashing is completed, and is carried out after water washing, is beaten after；
(4) it is beaten afterwards：Skiving is completed after being beaten through steep-taper jordan；
(5) defibrination：Double disc refiner is transferred to again carries out defibrination；
(6) pulp：Pulp after defibrination, then press water through squeezer；
(7) shredding：The latex after water is pressed through willy.
2. a kind of kraft fibers production technology according to claim 1, it is characterised in that the step (2) matches somebody with somebody alkali temperature
Degree control is 16%-17% Na0H between 30-60 DEG C, using relative oven dry stock amount and relative oven dry stock amount is 0.45-0.5%'s
HY--PA bleeding agents prepare alkali lye, and ox-hide leftover pieces are with preparing the ratio between alkali lye 1: 4-4.5.
3. a kind of kraft fibers production technology according to claim 1, it is characterised in that the step (3) is beaten including 3 times
Slurry process：A, through steep-taper jordan, mashing current control is in 260-209A for the first time, and slurry concentration control is complete in 1.5-1.9%
It is beaten, surveys into first time：Freedom 730-740ml, fibre length 59-68%；After b, for the first time mashing, second dozen is carried out
Slurry, current control is completed after being beaten for the second time, surveyed in 1.5-1.9% in 280-320A, slurry concentration control：Freedom 719-
729ml, fibre length 50-58%；After c, second of mashing, third time mashing is carried out, current control starches concentration in 290-330A
Control completes third time and is beaten, survey in 1.5-1.9%：Freedom 700-718ml, fibre length 42--49%.
4. a kind of kraft fibers production technology according to claim 1, it is characterised in that the steep-taper of the step (4)
Jordan current control is in 240-280A, and slurry concentration control is in 2.0-3.0%；Survey：Freedom 680-700ml, fibre length 35-
42%.
5. a kind of kraft fibers production technology according to claim 1, it is characterised in that the double plate mill of the step (5)
Pulp grinder current control is in 320-380A, and slurry concentration control is in 2.0-3.0%；Survey：Fibre length 20-35%, freedom 650-
680ml。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710222270.0A CN107099884A (en) | 2017-04-06 | 2017-04-06 | A kind of kraft fibers production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710222270.0A CN107099884A (en) | 2017-04-06 | 2017-04-06 | A kind of kraft fibers production technology |
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| Publication Number | Publication Date |
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| CN107099884A true CN107099884A (en) | 2017-08-29 |
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ID=59676194
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710222270.0A Pending CN107099884A (en) | 2017-04-06 | 2017-04-06 | A kind of kraft fibers production technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108068426A (en) * | 2017-12-26 | 2018-05-25 | 抚州市佳达纺织科技有限公司 | A kind of production technology of high-strength cow nonwoven skin cloth |
| CN108660548A (en) * | 2018-04-18 | 2018-10-16 | 海宁市丁桥镇永畅知识产权服务部 | A kind of preparation process of corium fabric |
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| US5851290A (en) * | 1994-11-02 | 1998-12-22 | Tissue Engineering, Inc. | Apparatus for spinning and processing collagen fiber |
| CN101302725A (en) * | 2008-06-10 | 2008-11-12 | 山东银鹰化纤有限公司 | Process for producing cotton dissolving pulp |
| CN104109983A (en) * | 2005-05-24 | 2014-10-22 | 国际纸业公司 | Modified kraft fibers |
| CN104480725A (en) * | 2014-12-12 | 2015-04-01 | 杭州新兴纸业有限公司 | Cow grey cloth and manufacturing method thereof |
| CN104562819A (en) * | 2014-12-12 | 2015-04-29 | 杭州新兴纸业有限公司 | Processing method of cattle-hide fibers |
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2017
- 2017-04-06 CN CN201710222270.0A patent/CN107099884A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5851290A (en) * | 1994-11-02 | 1998-12-22 | Tissue Engineering, Inc. | Apparatus for spinning and processing collagen fiber |
| CN104109983A (en) * | 2005-05-24 | 2014-10-22 | 国际纸业公司 | Modified kraft fibers |
| CN101302725A (en) * | 2008-06-10 | 2008-11-12 | 山东银鹰化纤有限公司 | Process for producing cotton dissolving pulp |
| CN104480725A (en) * | 2014-12-12 | 2015-04-01 | 杭州新兴纸业有限公司 | Cow grey cloth and manufacturing method thereof |
| CN104562819A (en) * | 2014-12-12 | 2015-04-29 | 杭州新兴纸业有限公司 | Processing method of cattle-hide fibers |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108068426A (en) * | 2017-12-26 | 2018-05-25 | 抚州市佳达纺织科技有限公司 | A kind of production technology of high-strength cow nonwoven skin cloth |
| CN108660548A (en) * | 2018-04-18 | 2018-10-16 | 海宁市丁桥镇永畅知识产权服务部 | A kind of preparation process of corium fabric |
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Application publication date: 20170829 |
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