CN101358254A

CN101358254A - Technique for preparing goat chrome-free tanning upper leather

Info

Publication number: CN101358254A
Application number: CNA200810196007XA
Authority: CN
Inventors: 涂颖科
Original assignee: JIANGSU XINGAINIAN LEATHER CO Ltd
Current assignee: JIANGSU XINGAINIAN LEATHER CO Ltd
Priority date: 2008-09-10
Filing date: 2008-09-10
Publication date: 2009-02-04

Abstract

The invention discloses a production process of goat free-chrome vamp leather, which comprises the following steps: pickling, tanning, rinsing, neutralizating, retanning, dying and oiling, fixing, color registering, water washing, leather outputting, wringing on the next day, vacuuming 50 DEG C/70 seconds, air-drying, collecting leather for quiescence, damping quiescence, vibration staking, bending repair, toggling and trimming, all the steps are carried out and a finished product is completed. The invention is characterized in that zirconium tanning agents, vegetable tanning agents, synthesized tanning agents replace the traditional chrome tanning agents during tanning and retanning, the production process has no pollution, and has safe operation process; thus the effect of completely controlling the chrome pollution of the leather industry is achieved. The shrinking temperature of the obtained crust leather can reach 95 DEG C, the leather body is full, soft and elastic, the grain surface is neat and fine, and the physical and the mechanical properties can completely reach the requirements for the property of the goat vamp leather.

Description

A kind of production technique of goat chrome-free tanning upper leather

Technical field

The present invention relates to the complete processing of leather, relate to a kind of production technique of goat chrome-free tanning upper leather specifically.

Background technology

Traditional leather adopts chromium to make tanning agent more, and the chrome tanned leather that processing makes has anti-high humidity, Heat stability is good, and the leather body is plentiful, advantages such as softness.But because chromium ore resource is limited, people press for and seek a kind of substitute.And toxic because of sexavalent chrome remaining in the process hides process, the chrome tanning process can cause severe contamination to environment, and operator's health is brought injury, and this phenomenon still is difficult to prevent and treat effectively at present.Therefore, in people's pay attention to day by day living environment, pay close attention under the situation of using the environmental protection leather, developing no chrome tanning leather has become inexorable trend.

Summary of the invention

In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of production technique of goat chrome-free tanning upper leather, solve the pollution of chromium problem in the process hides process.

The present invention is achieved through the following technical solutions:

A kind of production technique of goat chrome-free tanning upper leather, comprise the steps: pickling, tanning, rinsing, neutralization, retanning, dyeing and stuffing, fixing, chromatography, wash, go out skin, water squeezing next day, vacuum 50 ℃/70 seconds, that extension dries is dry, receive skin leave standstill, get damp again leave standstill, vibrate draw soft, repair curved, toggling, deburring gets finished product, it is characterized in that described tannery is carried out in pickling liquid, adding alkali regulator solution pH value behind the adding zirconium tanning agent is 3.5, add the 1# sequestrant, 1# tannin extract, 1# dispersion agent, the 1# resin tanning agent, reaction; Add the 2# sequestrant then, the 2# tannin extract, the 2# dispersion agent, skin is washed, gone out to 2# resin tanning agent, mould inhibitor, standby;

Zirconium tanning agent is selected from the arbitrary of DT-T6015, BLANCOROL ZB33, DT-T602, DT-T6035, preferred BLANCOROL ZB33, and consumption is 5%, be 90min action time;

Described alkali is selected from Na ₂CO ₃Perhaps NaHCO ₃, preferred NaHCO ₃, consumption is 3.6%, the reaction times is 30+30min;

Described 1# sequestrant is the arbitrary of DT-A101, TRUKALIN K, BORRON ST, preferred DT-A101, and consumption is 0.3%;

Described 1# tannin extract is the arbitrary of MiMosa FS, SETA SUN, DT-R228, preferred MiMosaFS, and consumption is 10%;

Described 1# dispersion agent is the arbitrary of Coralon OT, TANIGAN OS, RETAN BM, preferred Coralon OT, and consumption is 3%;

Described 1# resin tanning agent is Relugan RV, and consumption is 3%, and mentioned reagent action time is 60min; Described 2# sequestrant is the arbitrary of DT-A101, TRUKALIN K, BORRON ST, preferred DT-A101, and consumption is 0.3%;

Described 2# tannin extract is MiMOsa R211, and MiMOsa ME's is arbitrary, preferred MiMOsa R211, and consumption is 10%;

Described 2# dispersion agent is the arbitrary of OT, TANIGAN OS, RETAN BM, preferred OT, and consumption is 2%;

Described 2# resin tanning agent is Relugan RV, and consumption is 3%;

Mentioned reagent action time is 180min;

Described mould inhibitor is preventol WB or TOLCIDE 2230, preferred 0.1%preventol WB.

Described retanning step adding temperature is 30 ℃ a water, add sequestrant except that the heavy metal in anhydrating, avoid heavy metal to combine and form stain with tannin extract, add the 1# synthetic tanning agent then and tighten up grain, make grain careful, gradation adds the degree of packing of 2# synthetic tanning agent, 1# resin tanning agent, 1#, 2#, 3# tannin extract increase skin body again, and plentiful homogeneity adds the plentiful flexibility that the 2# resin tanning agent increases the skin body.

Described sequestrant is the arbitrary of DT-A101, TRUKALIN K, BORRON ST, preferred DT-A101, and consumption is 0.3%, effect 5min;

The 1# synthetic tanning agent is INTAN 806 or FAPTAN STIL, preferred INTAN 806, and consumption is 4%, be 20min action time;

The 2# synthetic tanning agent is INTAN 806 or FAPTAN STIL, preferred INTAN 806, and consumption is 2%;

The 1# resin tanning agent is the arbitrary of RETAN 610, RELUGAN D, TRUPOTAN MAU, preferred RETAN 610, and consumption is 5%;

The 1# tannin extract is MiMOsa R211 or MiMOsa ME;

Mentioned reagent effect 60min;

The 2# tannin extract is ATO or DT-R240, preferred ATO, and consumption is 2%;

Dispersion agent is the arbitrary of Coralon OT, TANIGAN OS, RETAN BM, preferred CoralonOT, and consumption is 2%, be 60min action time;

Described 2# resin tanning agent is the arbitrary of TC, TERGOTAN S, TERGOTAN PR, INTANEMS, FAPTAN RTS3, preferred TC, and consumption is 5%, effect 50min.

The invention has the beneficial effects as follows: the present invention adopts and adopts the zirconium tanning agent, vegetable tanning agent, the synthetic tanning agent that do not contain chromium to prepare goat chrome-free tanning upper leather in tanning and retanning process, safe operation process, pollution-free, gained embryo leather shrinkage temperature reaches 95 ℃, and the leather body is plentiful, softness, flexible, grain is smooth, and is careful, and its physical and mechanical properties can reach the performance requriements of goat upper leather for shoes fully.

Embodiment

To describe the specific embodiment of the present invention in detail below:

A kind of production technique of goat chrome-free tanning upper leather, through pickling, tanning, rinsing, neutralization, retanning, dyeing and stuffing, fixing, chromatography, washed, go out skin, water squeezing next day, vacuum 50 ℃/70 seconds, hang dry dry, receive skin leave standstill, get damp again leave standstill, vibrate draw soft, repair steps such as curved, toggling, deburring and get product.

Rinse step uses oxalic acid to wash the foul on skin surface off, adds grease-removing agent S008 and takes off the unnecessary grease of intracutaneous, and neutralization procedure adds the pH value that neutralizing agent improves skin, fills with the retanning that adapts to the back.

In the dyeing and stuffing step, the purpose of oiling is in order to improve the pliability of leather body, to improve the physicals of skin, add sequestrant before the oiling except that the heavy metal in anhydrating, add protein filling to fill the limit belly of skin, making more uniformity of whole Zhang Geshen.Resin tanning agent RETAN TA, RETAN TB of Jia Ruing and tannin extract MiMOsa R211 are the degree of packing that increases the leather body for further subsequently, and fixing step subsequently further increases combination.

Embodiment 1 (following usage percentage calculates with the weight percent with sour skin)

Washing, go out skin, water squeezing next day, vacuum 50 ℃/70 seconds, hang dry dry, receive skin leave standstill, get damp again leave standstill, vibrate draw soft, repair curved, toggling, deburring is a finished product.

Below disclose the present invention with preferred embodiment, so it is not in order to restriction the present invention, and all employings are equal to replaces or technical scheme that the equivalent transformation mode is obtained, all drops within protection scope of the present invention.

Claims

1, a kind of production technique of goat chrome-free tanning upper leather, comprise the steps: pickling, tanning, rinsing, neutralization, retanning, dyeing and stuffing, fixing, chromatography, wash, go out skin, water squeezing next day, vacuum 50 ℃/70 seconds, that extension dries is dry, receive skin leave standstill, get damp again leave standstill, vibrate draw soft, repair curved, toggling, deburring gets finished product, it is characterized in that described tannery is carried out in pickling liquid, adding alkali regulator solution pH value behind the adding zirconium tanning agent is 3.5, add the 1# sequestrant, 1# tannin extract, 1# dispersion agent, the 1# resin tanning agent, reaction; Add the 2# sequestrant then, the 2# tannin extract, the 2# dispersion agent, skin is washed, gone out to 2# resin tanning agent, mould inhibitor, standby;

2, the production technique of a kind of goat chrome-free tanning upper leather according to claim 1 is characterized in that, the zirconium tanning agent that adds in the described tannery is selected from the arbitrary of DT-T6015, BLANCOROL ZB33, DT-T602, DT-T6035; Described alkali is selected from Na ₂CO ₃Perhaps NaHCO ₃Described 1# sequestrant is the arbitrary of DT-A101, TRUKALIN K, BORRON ST; Described 1# tannin extract is the arbitrary of MiMosa FS, SETASUN, DT-R228; Described 1# dispersion agent is the arbitrary of Coralon OT, TANIGAN OS, RETANBM; Described 1# resin tanning agent is Relugan RV, and consumption is 3%, and mentioned reagent action time is 60min; Described 2# sequestrant is the arbitrary of DT-A101, TRUKALIN K, BORRON ST; Described 2# tannin extract is MiMOsa R211, and MiMOsa ME's is arbitrary; Described 2# dispersion agent is the arbitrary of CoralonOT, TANIGAN OS, RETAN BM; Described 2# resin tanning agent is Relugan RV, and consumption is 3%, and mentioned reagent action time is 180min; Described mould inhibitor is preventol WB or TOLCIDE 2230.

3, the production technique of a kind of goat chrome-free tanning upper leather according to claim 2 is characterized in that, the preferred BLANCOROL ZB33 of zirconium tanning agent described in the tannery, and consumption is 5%, be 90min action time; The preferred NaHCO of described alkali ₃, consumption is 3.6%, the reaction times is 30+30min; The preferred DT-A101 of described 1# sequestrant, consumption is 0.3%; The preferred MiMosa FS of described 1# tannin extract, consumption is 10%, the preferred Coralon OT of described 1# dispersion agent, consumption is 3%; The preferred Relugan RV of described 1# resin tanning agent, consumption is 3%; The preferred DT-A101 of described 2# sequestrant, consumption is 0.3%; The preferred MiMOsaR211 of described 2# tannin extract, consumption is 10%; The preferred OT of described 2# dispersion agent, consumption is 2%; The preferred Relugan RV of described 2# resin tanning agent, consumption is 3%; The preferred 0.1%preventol WB of described mould inhibitor.

4, the production technique of a kind of goat chrome-free tanning upper leather according to claim 1 is characterized in that, in the described retanning step, described sequestrant is the arbitrary of DT-A101, TRUKALIN K, BORRON ST, effect 5min; The 1# synthetic tanning agent is INTAN 806 or FAPTAN STIL, and be 20min action time; The 2# synthetic tanning agent is INTAN 806 or FAPTAN STIL; The 1# resin tanning agent is the arbitrary of RETAN610, RELUGAN D, TRUPOTAN MAU, and the 1# tannin extract is MiMOsa R211 or MiMOsa ME, mentioned reagent effect 60min; The 2# tannin extract is ATO or DT-R240; Dispersion agent is the arbitrary of Coralon OT, TANIGAN OS, RETAN BM, and be 60min action time, and described 2# resin tanning agent is the arbitrary of TC, TERGOTAN S, TERGOTAN PR, INTAN EMS, FAPTAN RTS3, effect 50min.

5, the production technique of a kind of goat chrome-free tanning upper leather according to claim 4 is characterized in that, in the described retanning step, the preferred DT-A101 of described sequestrant, consumption are 0.3%; The preferred INTAN 806 of 1# synthetic tanning agent, consumption is 4%; The preferred INTAN 806 of 2# synthetic tanning agent, consumption is 2%; The preferred RETAN 610 of 1# resin tanning agent, consumption is 5%; The preferred MiMOsa R211 of 1# tannin extract, consumption is 5%; The preferred ATO of 2# tannin extract, consumption are 2%, the preferred Coralon OT of dispersion agent, and consumption is 2%, the preferred TC of described 2# resin tanning agent, consumption is 5%.