CN104450990B - The preparation method of flame-retardant leather - Google Patents
The preparation method of flame-retardant leather Download PDFInfo
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- CN104450990B CN104450990B CN201410705851.6A CN201410705851A CN104450990B CN 104450990 B CN104450990 B CN 104450990B CN 201410705851 A CN201410705851 A CN 201410705851A CN 104450990 B CN104450990 B CN 104450990B
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Classifications
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C1/00—Chemical treatment prior to tanning
- C14C1/08—Deliming; Bating; Pickling; Degreasing
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C3/00—Tanning; Compositions for tanning
- C14C3/02—Chemical tanning
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C3/00—Tanning; Compositions for tanning
- C14C3/02—Chemical tanning
- C14C3/04—Mineral tanning
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C3/00—Tanning; Compositions for tanning
- C14C3/02—Chemical tanning
- C14C3/08—Chemical tanning by organic agents
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C3/00—Tanning; Compositions for tanning
- C14C3/02—Chemical tanning
- C14C3/08—Chemical tanning by organic agents
- C14C3/22—Chemical tanning by organic agents using polymerisation products
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C3/00—Tanning; Compositions for tanning
- C14C3/02—Chemical tanning
- C14C3/28—Multi-step processes
Abstract
The invention discloses the preparation method of a kind of flame-retardant leather, it is with wet blue leather as raw material, through pickling → retanning → neutralization → filling → stuffing → flame treatment, finally prepares flame-retardant leather.The fire resistance of made flame-retardant leather reaches country's fire proofing standard ANSI/UL 94 1985 fire-retardant rank of standard B level, there is high flame resistance, grain consolidation and the physical and chemical performance of excellence, also solve the character that leather is inflammable, and the problem of toxic gas and smog when solving burning, can be discharged, reduce the combustibility of leather, slow down the rate of fire travel, can quickly extinguish after flame is removed, no longer burn, leather is without covering with paint, lacquer, colour wash, etc., flame-retardant leather low cost, easily operates.The present invention is applicable to the preparation of flame-retardant leather, the preparation of the leather of the most fire-retardant leather shoes, and products made thereby is useful as the footwear leather of fire-fighting and inflammable industry.
Description
Technical field
The invention belongs to field of leather, relate to the preparation method of a kind of leather, more particularly to the system of a kind of flame-retardant leather
Preparation Method.
Background technology
Leather products is with its remarkable breathability, water penetration, thermal insulation, sweat proof, resistance to ageing, wear-resisting scratch resistance and anti-puncture etc. comprehensive
Performance, is widely used in the system of production, hotel, KTV and aircraft, automobile interior trim and the office furniture of forest fire protection equipment
The high-grade field such as make.Present domestic many fire height issuing industries are badly in need of a kind of footwear that can play fire retardation, this
Footwear are accomplished by flame-retardant leather, flame-retardant leather the footwear made can play the effect preventing burning foot, so this leather is
The first-selection of the footwear leather of fire-fighting and inflammable industry, is the main material of the fire extinguishing footwear that fire brigade uses.
Summary of the invention
The technical problem to be solved in the present invention, is to provide the preparation method of a kind of flame-retardant leather, so that the resistance of flame-retardant leather
Combustion performance reaches country's fire proofing standard ANSI/UL-94-1985 fire-retardant rank of standard B level.
For solving above-mentioned technical problem, the technical solution adopted in the present invention is:
The preparation method of a kind of flame-retardant leather, it is with wet blue leather as raw material, through pickling → retanning → neutralize → fill → add
Fat → flame treatment, finally prepares flame-retardant leather.
As a kind of restriction of the present invention, " pickling " described in (1) is to render in rotary drum by wet blue leather, adds wet blue leather
The water of 2 times of weight portion, then be separately added into wet blue leather 0.4% acid and the degreasing agent of 0.3%, at 40 DEG C in rotary drum rotate 90
Minute, in regulation drum, pH value is 3.5-3.7, adds the water of wet blue leather parts by weight 4 times, rotates 10 minutes, draining at 37 DEG C, system
Obtain leather a；
(2) " retanning " described in is to put in rotary drum by leather a, the water of 2 times of addition wet blue leather weight portion, adds indigo plant
The retanning agent of the 5% of wet leather weight, rotates 60 minutes, the water of 3 times of addition wet blue leather weight, rotates 10 minutes, row at 35 DEG C
Water, prepares leather b；
(3) " neutralization " described in is to put in rotary drum by leather b, the water of 2 times of addition wet blue leather weight, adds blue wet
The neutralizing retanning agent of the 2% of leather weight, rotates 60 minutes, the water of 3 times of addition wet blue leather weight, rotates 10 minutes, row at 35 DEG C
Water, prepares leather c；
(4) " filling " described in is to put in rotary drum by leather c, the water of 2 times of addition wet blue leather weight, adds blue wet
The acrylic resin tanning agent of the 11% of leather weight, rotates 60-90 minute, adds the 8-10%'s that gross weight is wet blue leather weight
Amino resins and amino resins fill tannic extract fiberfill fibers gap, rotates 60-90 minute, afterwards the 3% of addition wet blue leather weight
Little molecule acrylate resin tanning agent, is eventually adding the first acid for adjusting pH value of 1-1.5% of wet blue leather weight to 4-4.2, addition and indigo plant
The water of the weight such as wet leather weight, rotates 5 minutes at 60 DEG C, draining, prepares leather d；
(5) " stuffing " described in is to put in rotary drum by leather d, the water of 2 times of addition wet blue leather weight, adds blue wet
The mixing fatting agent of 8-10% of leather weight, add wet blue leather weight 1.5% formic acid adjust pH value to 3.2-3.6, add indigo plant
The water of 3 times of wet leather weight, rotates 5 minutes under room temperature, draining, prepares leather e；
(6) " flame treatment " described in is to put in rotary drum by leather e, the water of 2 times of addition wet blue leather weight, adds
The fire retardant of the 5-7% of wet blue leather weight, rotates 60 minutes, finally prepares flame-retardant leather.
As the further restriction of above-mentioned restriction, the degreasing agent in described " pickling " is ON-C, and acid is formic acid and oxalic acid, its
In, the addition of formic acid is the 0.3% of wet blue leather weight, and the addition of oxalic acid is the 0.1% of wet blue leather weight.
As the further restriction of above-mentioned restriction, the retanning agent described in (2) is acrylic resin.
As the further restriction of above-mentioned restriction, described acrylic resin is MA-14 and LEUKOTAN 970, wherein,
The addition of MA-14 is the 2% of wet blue leather weight, and the addition of LEUKOTAN 970 is the 3% of wet blue leather weight.
As the further restriction of above-mentioned restriction, the neutralizing retanning agent described in (3) is PAK-N-C, sodium formate and little Su
Beating, wherein, the addition of PAK-N-C is the 2% of wet blue leather weight, and the addition of sodium formate is the 1% of wet blue leather weight, sodium bicarbonate
Addition is wet blue leather weight 0.3%.
As the further restriction of above-mentioned restriction, the acrylic resin tanning agent described in (4) is SA-09, MAS and HA-
16, wherein, the addition of SA-09 is the 5% of wet blue leather weight, and the addition of MAS is the 4% of wet blue leather weight, the addition of HA-16
Amount is the 2% of wet blue leather weight；
It is profit tan pellet DLF and Jintan ME that described amino resins fills tannic extract, and wherein, the addition of profit tan pellet DLF is blue
The 4% of wet leather percetage by weight, the addition of Jintan ME is the 4% of wet blue leather percetage by weight,
Described little molecule acrylate resin tanning agent is LEUKOTAN 970.
As the further restriction of above-mentioned restriction, the mixing fatting agent described in (5) be EW, ATLASOL 178,
PROPUKT 3531 and UFB/W, wherein, EW addition is the 2% of wet blue leather weight, and ATLASOL 178 addition is wet blue leather weight
The 1.5% of amount, PROPUKT 3531 addition is the 2% of wet blue leather weight, and UFB/W addition is the 2.5% of wet blue leather weight.
As the further restriction of above-mentioned restriction, the fire retardant described in (6) is FRnew.
Owing to have employed above-mentioned technical scheme, compared with prior art, acquired technological progress is the present invention:
Use with wet blue leather as raw material, through pickling → retanning → neutralization → filling → stuffing → flame treatment, finally prepare
Flame-retardant leather, made flame-retardant leather detects through fire resistance, and its fire resistance reaches country's fire proofing standard ANSI/UL-94-
The 1985 fire-retardant ranks of standard B level.Its fire resistance detection method is as follows:
The horizontal burning test method of 94HB level, detection method uses long 127mm, wide 12.7mm, and minimum thickness 3mm's is little
Bar-shaped sample, is carried out in the proof box without ventilating.Burning velocity on 76.2mm gauge length is not more than 38.1mm/min, or
Burning must be stopped before reaching 102mm graticule.The result of final detection meets the standard of country's fire proofing.
The made flame-retardant leather of the present invention also solves the problem that leather is inflammable, and can discharge poison when solving burning
Body and the problem of smog.It reduces the combustibility of leather and the rate of fire travel that slowed down simultaneously, can be fast after flame is removed
Speed is extinguished, and no longer burns.The made flame-retardant leather of the present invention, without covering with paint, low cost, easily operates, just can operate whole in rotary drum
Process, made leather has high flame resistance, grain consolidation, and the physical and chemical performance of excellence.
The present invention is applicable to the preparation of flame-retardant leather, and the preparation of the most fire-retardant leather shoes leather, products made thereby is useful as
The footwear leather of fire-fighting and inflammable industry.
The present invention is described in further detail below in conjunction with specific embodiment.
Detailed description of the invention
1 one kinds of flame-retardant leather manufacture methods of embodiment
A kind of preparation method of flame-retardant leather, it is with wet blue leather as raw material, carries out according to following steps order:
(11) pickling
Wet blue leather is rendered in rotary drum, add the water of 2 times of wet blue leather weight, add the 0.4% of wet blue leather weight
Acid and the degreasing agent of 0.3%, rotate 90 minutes at 40 DEG C in rotary drum, and in regulation drum, pH value is 3.7, after will wherein add blue wet
The water of 4 times of leather weight, rotates 10 minutes at 37 DEG C, draining, prepares leather a1；Wherein, degreasing agent is ON-C, acid be formic acid and
The mixture of oxalic acid, the addition of formic acid is the 0.3% of wet blue leather weight, and the addition of oxalic acid is the 0.1% of wet blue leather weight.
(12) retanning
Leather a1 is put in rotary drum, adds the water of 2 times of wet blue leather weight, add wet blue leather weight 2% MA-
14 and 3% LEUKOTAN 970, rotate 60 minutes, the water of rear add wet blue leather weight 3 times, rotate 10 minutes at 35 DEG C, row
Water, prepares leather b1；
(13) neutralize
Putting in rotary drum by leather b1, the water of 2 times of addition wet blue leather weight, adding gross weight is wet blue leather weight 2%
PAK-N-C, sodium formate and sodium bicarbonate, rotate 60 minutes, the water of rear add wet blue leather weight 3 times, at 35 DEG C, rotate 10 points
Clock, draining, prepare leather c1；
Wherein, PAK-N-C: sodium formate: the weight ratio of sodium bicarbonate is 20:10:3.
(14) fill
Leather c1 is put in rotary drum, adds the water of 2 times of wet blue leather weight, add wet blue leather weight 11% third
Olefin(e) acid resinoid tanning agent, rotates 80 minutes, and the amino resins and the amino resins that add gross weight is wet blue leather weight 10% are filled out
Filling tannic extract fiberfill fibers gap, rotate 80 minutes, the LEUKOTAN 970 of the 3% of addition wet blue leather weight, is eventually adding indigo plant afterwards
The first acid for adjusting pH value of the 1.5% of wet leather weight, to 4.2, adds and the equiponderant water of wet blue leather afterwards, rotates 5 minutes at 60 DEG C,
Draining, prepares leather d1；Wherein, acrylic resin tanning agent is the mixture of SA-09, MAS and HA-16, the weight between them
Amount ratio is 5:4:2.
It is profit tan pellet DLF and Jintan ME that amino resins fills tannic extract, and the weight ratio between them is 1:1.
(15) stuffing
Putting in rotary drum by leather d1, the water of 2 times of addition wet blue leather weight, adding gross weight is wet blue leather weight
The mixing fatting agent of 10%, add wet blue leather weight 1.5% formic acid adjust pH value to 3.4, rear add wet blue leather weight 3 times
Water, under room temperature rotate 5 minutes, draining, prepare leather e1；Wherein, mixing fatting agent is EW, ATLASOL 178, PROPUKT
3531 and UFB/W, the weight ratio between them is 4:3:4:5.
(16) flame treatment
Leather e1 is put in rotary drum, add the water of 2 times of wet blue leather weight, add the 7% of wet blue leather weight
FRnew, rotates 60 minutes, finally prepares flame-retardant leather.
Manufacturer and the lot number of raw material involved in the preparation method in the present embodiment are as shown in the table:
Obtained flame-retardant leather enters according to country's fire proofing standard ANSI/UL-94-1985 fire-retardant rank of standard B level
Row detection, uses the little bar-shaped sample of long 127mm, wide 12.7mm, minimum thickness 3mm, and its burning velocity is 29mm/min.
The preparation method of embodiment 2-6 flame-retardant leather
Embodiment 2-6 is respectively the preparation method of a kind of flame-retardant leather, and its preparation method is similar to Example 1, difference
Place is only that wherein involved technical parameter is different, shown in table specific as follows:
Claims (8)
1. the preparation method of a flame-retardant leather, it is characterised in that: it is with wet blue leather as raw material, through pickling → retanning → neutralization →
Filling → stuffing → flame treatment, finally prepares flame-retardant leather；
Wherein, " pickling " described in (1) is to render in rotary drum by wet blue leather, the water of 2 times of addition wet blue leather weight portion, then divides
Do not add wet blue leather 0.4% acid and the degreasing agent of 0.3%, at 40 DEG C in rotary drum rotate 90 minutes, regulation drum in pH value be
3.5-3.7, adds the water of wet blue leather parts by weight 4 times, rotates 10 minutes, draining at 37 DEG C, prepares leather a；
(2) " retanning " described in is to put in rotary drum by leather a, the water of 2 times of addition wet blue leather weight portion, adds wet blue leather
The retanning agent of the 5% of weight, rotates 60 minutes, the water of 3 times of addition wet blue leather weight, rotates 10 minutes, draining, system at 35 DEG C
Obtain leather b；
(3) " neutralization " described in is to put in rotary drum by leather b, the water of 2 times of addition wet blue leather weight, adds wet blue leather weight
The neutralizing retanning agent of the 2% of amount, rotates 60 minutes, the water of 3 times of addition wet blue leather weight, rotates 10 minutes, draining at 35 DEG C,
Prepare leather c；
(4) " filling " described in is to put in rotary drum by leather c, the water of 2 times of addition wet blue leather weight, adds wet blue leather weight
The acrylic resin tanning agent of the 11% of amount, rotates 60-90 minute, adds the amino of the 8-10% that gross weight is wet blue leather weight
Resin and amino resins fill tannic extract fiberfill fibers gap, rotate 60-90 minute, little point of the 3% of addition wet blue leather weight afterwards
Sub-acrylate resin tanning agent, is eventually adding the first acid for adjusting pH value of 1-1.5% of wet blue leather weight to 4-4.2, addition and wet blue leather
The water of the weight such as weight, rotates 5 minutes at 60 DEG C, draining, prepares leather d；
(5) " stuffing " described in is to put in rotary drum by leather d, the water of 2 times of addition wet blue leather weight, adds wet blue leather weight
The mixing fatting agent of 8-10% of amount, add wet blue leather weight 1.5% formic acid adjust pH value to 3.2-3.6, add wet blue leather
The water of 3 times of weight, rotates 5 minutes under room temperature, draining, prepares leather e；
(6) " flame treatment " described in is to put in rotary drum by leather e, the water of 2 times of addition wet blue leather weight, adds blue wet
The fire retardant of the 5-7% of leather weight, rotates 60 minutes, finally prepares flame-retardant leather.
2. the preparation method of flame-retardant leather as claimed in claim 1, it is characterised in that the degreasing agent in described " pickling " is ON-
C, acid is formic acid and oxalic acid, and wherein, the addition of formic acid is the 0.3% of wet blue leather weight, and the addition of oxalic acid is wet blue leather weight
0.1%.
The preparation method of flame-retardant leather the most according to claim 1, it is characterised in that: the retanning agent described in (2) is third
Olefin(e) acid resin.
The preparation method of flame-retardant leather the most according to claim 3, it is characterised in that: described acrylic resin is MA-14
With LEUKOTAN 970, wherein, the addition of MA-14 is the 2% of wet blue leather weight, and the addition of LEUKOTAN 970 is blue wet
The 3% of leather weight.
The preparation method of flame-retardant leather the most according to claim 1, it is characterised in that: the neutralizing retanning agent described in (3)
For PAK-N-C, sodium formate and sodium bicarbonate, wherein, the addition of PAK-N-C is the 2% of wet blue leather weight, the addition of sodium formate
For the 1% of wet blue leather weight, the addition of sodium bicarbonate is the 0.3% of wet blue leather weight.
The preparation method of flame-retardant leather the most according to claim 1, it is characterised in that: the acrylic compounds tree described in (4)
Fat tanning agent is SA-09, MAS and HA-16, and wherein, the addition of SA-09 is the 5% of wet blue leather weight, and the addition of MAS is blue wet
The 4% of leather weight, the addition of HA-16 is the 2% of wet blue leather weight；
It is profit tan pellet DLF and Jintan ME that described amino resins fills tannic extract, and wherein, the addition of profit tan pellet DLF is wet blue leather
The 4% of percetage by weight, the addition of Jintan ME is the 4% of wet blue leather percetage by weight,
Described little molecule acrylate resin tanning agent is LEUKOTAN 970.
The preparation method of flame-retardant leather the most according to claim 1, it is characterised in that: the mixing fatting agent described in (5)
For EW, ATLASOL 178, PROPUKT 3531 and UFB/W, wherein, EW addition is the 2% of wet blue leather weight, ATLASOL
178 additions are the 1.5% of wet blue leather weight, and PROPUKT 3531 addition is the 2% of wet blue leather weight, and UFB/W addition is
The 2.5% of wet blue leather weight.
The preparation method of flame-retardant leather the most according to claim 1, it is characterised in that: the fire retardant described in (6) is
FRnew。
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| CN201410705851.6A CN104450990B (en) | 2014-12-01 | 2014-12-01 | The preparation method of flame-retardant leather |
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| CN201410705851.6A CN104450990B (en) | 2014-12-01 | 2014-12-01 | The preparation method of flame-retardant leather |
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| CN104450990B true CN104450990B (en) | 2016-09-28 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105238889B (en) * | 2015-09-30 | 2017-07-28 | 兴业皮革科技股份有限公司 | A kind of high temperature, low temperature alternating retanning dyeing |
| CN106011326A (en) * | 2016-07-05 | 2016-10-12 | 山东德信皮业有限公司 | Preparation process of deep-level flame-retardant leather for high-speed trains and airplanes |
| IT201700043084A1 (en) * | 2017-04-19 | 2018-10-19 | Enrico Mandelli S P A | Fireproof leather. |
| CN107058646A (en) * | 2017-06-07 | 2017-08-18 | 海宁瑞星皮革有限公司 | The ox-hide high-temperature-resistant glove for protecting hair depilation technology based on micro- enzyme alkaline process removes from office preparation method |
| CN107488758A (en) * | 2017-10-09 | 2017-12-19 | 常州明华运输有限公司 | A kind of preparation method of flame-retardant leather |
| CN108330226B (en) * | 2018-02-09 | 2020-07-28 | 漳州香洲皮革有限公司 | Method for manufacturing fireproof leather |
| CN111088690B (en) * | 2019-12-23 | 2022-08-16 | 深圳市盛宝莱实业有限公司 | Artificial flame-retardant leather suitable for leather embroidery |
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| KR20110034094A (en) * | 2009-09-28 | 2011-04-05 | 김민정 | Manufacture method of lead including yellow soil |
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| CN102676710A (en) * | 2012-05-29 | 2012-09-19 | 济南鲁日钧达皮革有限公司 | Method for preparing cleaned three-proofing cow split leather and prepared cleaned three-proofing cow split leather |
| CN104032048A (en) * | 2014-05-22 | 2014-09-10 | 海宁森德皮革有限公司 | Production process of flame retardant trim cow leather |
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