SU369139A1 - M. Cl. C ISUOODK 675.024 (088.8) AuthorsL. N. Romankevich, G. T. Volovik, N. N. Borisenko, S. D. KovtunovichI, R. I. Tchaikovsky - Google Patents

M. Cl. C ISUOODK 675.024 (088.8) AuthorsL. N. Romankevich, G. T. Volovik, N. N. Borisenko, S. D. KovtunovichI, R. I. Tchaikovsky

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Publication number
SU369139A1
SU369139A1 SU1667218A SU1667218A SU369139A1 SU 369139 A1 SU369139 A1 SU 369139A1 SU 1667218 A SU1667218 A SU 1667218A SU 1667218 A SU1667218 A SU 1667218A SU 369139 A1 SU369139 A1 SU 369139A1
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romankevich
kovtunovichi
isuoodk
authorsl
volovik
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SU1667218A
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Russian (ru)
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Priority to SU1667218A priority Critical patent/SU369139A1/en
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  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Description

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Изобретение относитс  к способам обработки кож, в частности к способу их дублени .The invention relates to methods for treating leather, in particular to a method for tanning them.

Известный способ дублени  кож заключаетс  в том, что промытое после пикелевани  голье обрабатывают формальдегидом, затем промывают, обрабатывают кремнекислотой и нейтрализуют сульфитом натри .A known method for tanning leather is that the washed after pickling treasure is treated with formaldehyde, then washed, treated with silicic acid and neutralized with sodium sulfite.

С целью упрощени  и сокращени  производственного ЦИКла, а также исключени  применени  ТОКСИЧНОГО формальдегида по предлагаемому способу в отработанную пикельную ЖИДКОСТЬ последовательно ввод т уротропин, кремневую кислоту и нейтрализующий реагент (например, соду илй бикарбонат натри ).In order to simplify and reduce the production CYCLE, as well as to eliminate the use of TOXIC formaldehyde using the proposed method, methenamine, silicic acid and neutralizing reagent (for example, sodium bicarbonate or sodium bicarbonate) are successively introduced into the developed picaltic LIQUID.

Способ осуществл ют следующим образом.The method is carried out as follows.

Голье пикелюют, после чего в отработанную пикельную ЖИДКОСТЬ ввод т уротропин в количестве 0,4-2% от веса голь . После 1-Pellet is pickled, after which, urotropin is added to the spent pickled LIQUID in the amount of 0.4-2% by weight of the mole. After 1-

2 час обработки ввод т раствор кремневой КИСЛОТЫ с содержанием ЗЮз 2-6%, действие которой продолжаетс  в течение 3-8 час, затем рН раствора повыщают до 6,5-7,5 прибавлением соды ИЛИ бикарбоната натри . Обработку продолжают еще 2-3 час, а затем ЖИДКОСТЬ сливают и кожи промывают.After 2 hours of treatment, a solution of silicic acid, containing a content of 2–6%, is introduced, which lasts for 3–8 hours, then the pH of the solution is raised to 6.5–7.5 by adding soda OR sodium bicarbonate. The treatment is continued for another 2-3 hours, and then the LIQUID is drained and the skin is washed.

Предмет изобретени Subject invention

Способ дублени  кож, заключающийс  в том, что пикелеванное голье обрабатывают кремневой кислотой с последующим введением в раствор нейтрализующего реагента, отличающийс  тем, что, с целью сокращени  и упрощени  производственного цикла, в пикельную ЖИДКОСТЬ перед обработкой кремневой КИСЛОТОЙ ввод т уротропин.The method of tanning leather, which is that the pickled hide is treated with silicic acid, followed by the introduction of a neutralizing agent into the solution, characterized in that, in order to shorten and simplify the production cycle, in picnic liquid before treatment with silicic acid, methenamine is introduced.

SU1667218A 1971-06-08 1971-06-08 M. Cl. C ISUOODK 675.024 (088.8) AuthorsL. N. Romankevich, G. T. Volovik, N. N. Borisenko, S. D. KovtunovichI, R. I. Tchaikovsky SU369139A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1667218A SU369139A1 (en) 1971-06-08 1971-06-08 M. Cl. C ISUOODK 675.024 (088.8) AuthorsL. N. Romankevich, G. T. Volovik, N. N. Borisenko, S. D. KovtunovichI, R. I. Tchaikovsky

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1667218A SU369139A1 (en) 1971-06-08 1971-06-08 M. Cl. C ISUOODK 675.024 (088.8) AuthorsL. N. Romankevich, G. T. Volovik, N. N. Borisenko, S. D. KovtunovichI, R. I. Tchaikovsky

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SU369139A1 true SU369139A1 (en) 1973-02-08

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SU1667218A SU369139A1 (en) 1971-06-08 1971-06-08 M. Cl. C ISUOODK 675.024 (088.8) AuthorsL. N. Romankevich, G. T. Volovik, N. N. Borisenko, S. D. KovtunovichI, R. I. Tchaikovsky

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0014721A4 (en) * 1978-02-23 1980-07-08 Seitetsu Kagaku Co Ltd Method of tanning rawhide.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0014721A4 (en) * 1978-02-23 1980-07-08 Seitetsu Kagaku Co Ltd Method of tanning rawhide.
EP0014721A1 (en) * 1978-02-23 1980-09-03 Seitetsu Kagaku Co., Ltd. Method of tanning rawhide

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