SU67914A1 - The method of preparation of sheepskin for tanning in the development of shoe chevret - Google Patents

The method of preparation of sheepskin for tanning in the development of shoe chevret

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Publication number
SU67914A1
SU67914A1 SU3619A SU318590A SU67914A1 SU 67914 A1 SU67914 A1 SU 67914A1 SU 3619 A SU3619 A SU 3619A SU 318590 A SU318590 A SU 318590A SU 67914 A1 SU67914 A1 SU 67914A1
Authority
SU
USSR - Soviet Union
Prior art keywords
sheepskin
tanning
shoe
chevret
development
Prior art date
Application number
SU3619A
Other languages
Russian (ru)
Inventor
Я.М. Левин
Д.Г. Раппопорт
Original Assignee
Я.М. Левин
Д.Г. Раппопорт
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Я.М. Левин, Д.Г. Раппопорт filed Critical Я.М. Левин
Priority to SU3619A priority Critical patent/SU67914A1/en
Application granted granted Critical
Publication of SU67914A1 publication Critical patent/SU67914A1/en

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  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Description

Дл  получени  прочного обувного шеврета было сделано много разных предложений, относ щихс  к видоизменению подготовительных работ, процесса дублени  и отделочных операций.In order to obtain a durable shoe shoe, many different proposals were made regarding the modification of the preparatory work, the tanning process and the finishing operations.

Учитыва  рыхлость структуры коллагеновой ткани овчины, следует признать целесообразным сокращение отмочно-зольных операций и одновременное применение обострителей дл  -предотвращени  перехода белков в раствор. Например, вместо отмачивани  мокросоленого сырь  одни предлагали ограничитьс  только промывкою шкур в баркасе в течение 30 мин., другие предлагали длительность пролежки шкур в намази сократить до 2 час., а продолжительность золени  до 1 часа. Что касаетс  обеззоливани  и м гчени , то многие рекомендовали совсем устранить их или же значительно сократить их воздействие на кожевую ткань овчины.Taking into account the looseness of the structure of the sheepskin collagen tissue, it is necessary to recognize the expediency of reducing staining-ash operations and the simultaneous use of sharpeners to prevent the transfer of proteins into solution. For example, instead of soaking wet-salted raw materials, some suggested limiting themselves only by washing the hides in the barge for 30 minutes, others suggested reducing the duration of laying the hides in the namaz to 2 hours, and the time of ashing to 1 hour. As for de-rubbing and softening, many have recommended completely eliminating them or significantly reducing their effect on sheepskin leather.

Опыт р да заводов показал, что дл  получени  прочного шеврета следует уменьшить расход хромовых солей дл  дублени  и довести, его до 1,2 % Сг2Оз от веса голь . Строгание целесообразно проводить чрезвычайно осторожно, только подравнива  кожи по толщине, а кожи из мелкого сырь  совсем не надо строгать; следует лишь обращать внимание на аккуратное выполнение мездрени . Сушка кож на фанерах до конца также  вл етс  важным моментом ь деле получени  прочного шеврета.The experience of a number of factories has shown that in order to obtain a strong chevrette, the consumption of chrome salts for tanning should be reduced and it should be brought up to 1.2% Cr2O3 by weight mole. It is advisable to carry out planing extremely carefully, only trimming the skin in thickness, and the skin from small raw materials does not need to be planed at all; you should only pay attention to the careful execution of the intestines. Drying the leather on plywood to the end is also an important point in obtaining a strong chevreit.

Однако перечисленные меропри ти , вз тые в отдельности или примененные совместно, не всегда давали вполне удовлетворительные результаты .However, the listed measures, taken separately or applied together, did not always give quite satisfactory results.

Согласно опытным данным, основное значение в деле получени  прочного шеврета из овчины имеет надлежащее проведение отмочно-зольных операций. Нар ду с сокращением длительности интенсивности отмачивани  и золени , авторами предлагаетс  обрабатывать голье после золени  раствором кальцинированной соды в количестве 0,5-1,0% от веса голь . Благодар  указанной обработке, помимо получени  прочного шеврета, обеспечиваетс  поверхностное обезжиривание, растворение пигментов и гнейста, а также удаление продуктов растворени  при последующих механических операци х (промывки, чистка лица и мездрение ) .According to experimental data, proper execution of soot-ash operations is of major importance in obtaining durable shevret from sheepskin. Along with a reduction in the duration of the soaking and ashes intensity, the authors propose to treat the cheddin after the ashing with a solution of soda ash in the amount of 0.5-1.0% by weight of the mole. Thanks to this treatment, in addition to obtaining a strong chevrette, surface degreasing, dissolving of pigments and gneist, as well as removal of dissolution products during subsequent mechanical operations (rinsing, facial cleansing and fleshing) are provided.

Подготовительные операции дл  мокросоленого сырь  следующие.Preparatory operations for wet-salted raw materials are as follows.

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SU3619A 1940-10-23 1940-10-23 The method of preparation of sheepskin for tanning in the development of shoe chevret SU67914A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU3619A SU67914A1 (en) 1940-10-23 1940-10-23 The method of preparation of sheepskin for tanning in the development of shoe chevret

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU3619A SU67914A1 (en) 1940-10-23 1940-10-23 The method of preparation of sheepskin for tanning in the development of shoe chevret

Publications (1)

Publication Number Publication Date
SU67914A1 true SU67914A1 (en) 1946-11-30

Family

ID=48247224

Family Applications (1)

Application Number Title Priority Date Filing Date
SU3619A SU67914A1 (en) 1940-10-23 1940-10-23 The method of preparation of sheepskin for tanning in the development of shoe chevret

Country Status (1)

Country Link
SU (1) SU67914A1 (en)

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