CN105624344B - There is bloom way to solve the problem in a kind of black semi-finished product crust leather - Google Patents

Abstract

The present invention relates to the Manufacturing Techniques field of leather, there is provided a kind of while the skin of crust leather and color blackness is not changed, can also effectively solve the problems, such as the bloom that semi-finished product crust leather occurs in production, production cost is low, it is simple easily to realize, there is bloom way to solve the problem suitable for the black semi-finished product crust leather remedied of doing over again of typical products in mass production, comprise the following steps：Dry body leather, which is weighed → fetched water charging → throwing skin, → to be turned to stop combine → standing overnight → draining → and washes → to go out rouse → to take horse standing → stretching, extension → vacuum → extension dries in the air → to beat soft.

Description

There is bloom way to solve the problem in a kind of black semi-finished product crust leather

Technical field

The present invention relates to the Manufacturing Techniques field of leather, there is bloom and asked in more particularly to a kind of black semi-finished product crust leather The solution method of topic.

Background technology

Leather and fur products is one of articles for use indispensable in people's life, and it is closely bound up with the life of people.But The bloom phenomenon of leather but turns into the common defects of leather and fur products, directly affects the quality of product and attractive in appearance, in print often Because this bloom problem meets with the return of goods or the claim of client, very big economic loss is caused to manufacturer.

At present to the processing of bloom problem, all aim at prevention mostly, such as strengthen degreasing, remove natural in raw material skin Grease, or appropriate collocation is carried out in the selection of fatting agent, or finished leather guards against damp during storage, anti-enzyme, or Specification technological operation during leather processing, although suppression processing can be carried out to bloom to a certain extent, often Can not fundamentally solve the problems, such as bloom, after wet blue leather becomes semi-finished product crust leather by retanning, dyeing, stuffing process, store up Due to being changed by temperature, humidity during depositing or transporting, the sensation of " white haze " frost still occurs in whole crust leather surface, influences Crust leather quality, and these prevention methods are directed to crust leather and arrange the process made, and be not suitable for having become semi-finished product crust leather Crust leather, these semi-finished product crust leathers for bloom problem occur, which can not do over again, to be remedied, then these can not solve the problems, such as the half of bloom Finished product crust leather, which will turn into waste product, to be used, and the substantial amounts of wasting of resources and environmental pollution be caused, therefore, to there is bloom problem Semi-finished product crust leather find a quick and effective solution method be in current row producer be badly in need of solve Technical problem.

The content of the invention

Therefore, for it is above-mentioned the problem of, the present invention proposes that the solution party of bloom problem occurs in a kind of black semi-finished product crust leather There is bloom way to solve the problem and are not changing the same of the skin of crust leather and color blackness in method, the black semi-finished product crust leather When, additionally it is possible to effectively solve the problems, such as the bloom that semi-finished product crust leather occurs in production, the solution method is simply easily realized, production Cost is low, is remedied suitable for doing over again for typical products in mass production.

To realize above-mentioned technical problem, the solution that the present invention takes is：There is bloom in a kind of black semi-finished product crust leather Way to solve the problem, comprise the following steps：

Step 1, dry body leather are weighed, and are determined on the basis of twice of dry body leather weight used in subsequent treatment process step The parts by weight of reagent；

Step 2, charging of fetching water：Added in rotary drum 50-52 DEG C, the water of 500-600 parts by weight, 0.5-1.0 parts by weight Degreasing agent, the rewetting auxiliary agent of 0.5-1.0 parts by weight, the emulsifying agent of 1.0-1.5 parts by weight, rotate 5-10min；

Step 3, throw skin：Burst throws skin, puts into one by one in rotary drum;

Step 4, turn to stop combining：Rotary drum rotates 20-30min, adds aldehyde tanning agent, the 0.1-0.2 weights of 1.0-1.5 parts by weight The mould inhibitor of part is measured, 20-30min is rotated, stops 60min, 1-2min is rotated every time later, stops 60min, continuous to rotate 5 times, rotary drum Left undisturbed overnight；

Step 5, draining：Next day rotary drum rotates 5min, static discharge opeing；

Step 6, washing：50-52 DEG C, the degreasing of the water of 150-200 parts by weight, 0.1-0.2 parts by weight are added in rotary drum Agent, rotate 5-10min, continuous washing 2 times, discharge opeing；

Step 7, washing：25-30 DEG C, the water of 300-400 parts by weight are added in rotary drum, 10min is rotated, discharge opeing, goes out drum；

Step 8, take horse standing 4h；

Step 9, stretching, extension；

Step 10, vacuum：40 DEG C of temperature, 380 seconds time；

Step 11, extension dry in the air：Moisture 13-14%；

Step 12, beat it is soft：4 grades

It is further that the degreasing agent in the step 2 is nonionic degreasing agent, rewetting auxiliary agent is that anion rewetting helps Agent, emulsifying agent are nonionic emulsifier.

It is further that the aldehyde tanning agent in the step 4 is fatty aldehyde.

It is further that the degreasing agent in the step 6 is nonionic degreasing agent.

By using preceding solution, the beneficial effects of the invention are as follows：There is bloom and asked in the black semi-finished product crust leather The solution method of topic is after semi-finished product crust leather forms bloom, and crust leather is re-started back into bubbling water, adds appropriate nonionic Degreasing agent and the agent of anion rewetting remove the excessive stearic acid Ester in crust leather surface clean；Add nonionic emulsifier and Fatty aldehyde while further many greases of sauce is crossed on emulsification crust leather surface, helps grease again to improve the stability of whole system Permeate and scattered, avoid saturated fatty acid or the crystallization of its triglycerides；Washed finally by repeatedly bath water is changed, reduce semi-finished product leather The content of the weaker polyunsaturated fatty acid ester of middle binding ability, unsaturation lipid material in semi-finished product leather is reduced because hydrolysis, hydrogenation Etc. the possibility of chemical action generation polyunsaturated fatty acid ester, even if making in leather polyunsaturated fatty acid ester in the presence of being not easy to form crystallization, from And reach the purpose for solving bloom；There is bloom way to solve the problem and is not changing the skin of crust leather in the black semi-finished product crust leather While property and color blackness, additionally it is possible to effectively solve the problems, such as the bloom that semi-finished product crust leather occurs in production, the solution party Method simply easily realizes that production cost is low, is remedied suitable for doing over again for typical products in mass production.

Embodiment

The present invention is specifically described below by specific embodiment, whereby to the present invention how application technology means To solve technical problem, and the implementation process for reaching technique effect can fully understand and implement according to this, it is necessary to it is pointed out here that It is that the present embodiment is served only for that the present invention is further described, it is impossible to be interpreted as limiting the scope of the invention, the neck The person skilled in the art in domain can make some nonessential modifications and adaptations according to the content of the invention described above.

Unless otherwise specified, the conventional hand that the technological means employed in embodiment is well known to those skilled in the art Section, used reagent and product are also available commercial.The various processes and method not being described in detail are in this area Known conventional method, the source of agents useful for same, trade name and is necessary to list its constituent person, on the first appearance Indicate.

Provided in an embodiment of the present invention is that a kind of black semi-finished product crust leather bloom way to solve the problem occurs, including as follows Step：

Step 1, dry body leather are weighed, and agents useful for same in subsequent treatment process step is determined on the basis of twice of the weight Parts by weight；

Step 2, charging of fetching water：50-52 DEG C of addition, the water of 600 parts by weight, the degreasing agent OC of 0.5 parts by weight in rotary drum （BASF Chemical Co., Ltd.）, 0.5 parts by weight rewetting auxiliary agent MPC（Spread out border chemical materials Co., Ltd of nation）, 1.5 weight The emulsifying agent POL of part（LMF Chemical Co., Ltd.s）, rotate 10min；

Step 3, throw skin：Burst throws skin, puts into one by one in rotary drum;

Step 4, turn to stop combining：Rotary drum rotates 30min, adds the aldehyde tanning agent PF of 1.0 parts by weight（The limited public affairs of Si Mahuaxue Department）, 0.1 parts by weight mould inhibitor BTB 10（Bao Sika Chemical Co., Ltd.s）, 20min is rotated, stops 60min, is turned every time later Dynamic 2min, stops 60min, continuous to rotate 5 times, rotary drum left undisturbed overnight；

Step 5, draining：Next day rotary drum rotates 5min, static discharge opeing；

Step 6, washing：50-52 DEG C of addition, the water of 200 parts by weight, the degreasing agent OC of 0.1 parts by weight in rotary drum, are rotated 10min, continuous washing 2 times, discharge opeing；

Step 7, washing：25 DEG C, the water of 300 parts by weight are added in rotary drum, 10min is rotated, discharge opeing, goes out drum；

Step 8, take horse standing 4h；

Step 9, stretching, extension；

Step 10, vacuum：40 DEG C of temperature, 380 seconds time；

Step 11, extension dry in the air：Moisture 13-14%；

Step 12, beat it is soft：3-4 levels.

There is bloom way to solve the problem in black semi-finished product crust leather in summary, is not changing the skin and face of crust leather While color blackness, additionally it is possible to effectively solve the problems, such as the bloom that semi-finished product crust leather occurs in production, the solution method is simple Easily realize, production cost is low, is remedied suitable for doing over again for typical products in mass production.

Described in above, only this wound is used using the embodiment of this origination techniques content, any those skilled in the art Make done modifications and changes, all belong to the scope of the claims of this creation opinion, and be not limited to those disclosed embodiments.

Claims (1)

1. there is bloom way to solve the problem in a kind of black semi-finished product crust leather, it is characterised in that in turn includes the following steps：

Step 1, dry body leather are weighed, and agents useful for same in subsequent treatment process step is determined on the basis of twice of dry body leather weight Parts by weight；

Step 2, charging of fetching water：In rotary drum add 50-52 DEG C, the water of 500-600 parts by weight, 0.5-1.0 parts by weight it is non-from Anion rewetting auxiliary agent, the nonionic emulsifier of 1.0-1.5 parts by weight of sub- degreasing agent, 0.5-1.0 parts by weight, rotate 5- 10min；

Step 3, throw skin：Burst throws skin, puts into one by one in rotary drum;

Step 4, turn to stop combining：Rotary drum rotates 20-30min, adds fatty aldehyde tanning agent, the 0.1-0.2 weights of 1.0-1.5 parts by weight The mould inhibitor of part is measured, 20-30min is rotated, stops 60min, 1-2min is rotated every time later, stops 60min, continuous to rotate 5 times, rotary drum Left undisturbed overnight；

Step 5, draining：Next day rotary drum rotates 5min, static discharge opeing；

Step 6, washing：50-52 DEG C of addition, the water of 150-200 parts by weight, the nonionic of 0.1-0.2 parts by weight take off in rotary drum Fat agent, rotate 5-10min, continuous washing 2 times, discharge opeing；

Step 7, washing：25-30 DEG C, the water of 300-400 parts by weight are added in rotary drum, 10min is rotated, discharge opeing, goes out drum；

Step 8, take horse standing 4h；

Step 9, stretching, extension；

Step 10, vacuum：40 DEG C of temperature, 380 seconds time；

Step 11, extension dry in the air：Moisture 13-14%；

Step 12, beat it is soft：3-4 levels.