PL221B1 - The method of producing an artificial sponge. - Google Patents

The method of producing an artificial sponge. Download PDF

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Publication number
PL221B1
PL221B1 PL221A PL22119A PL221B1 PL 221 B1 PL221 B1 PL 221B1 PL 221 A PL221 A PL 221A PL 22119 A PL22119 A PL 22119A PL 221 B1 PL221 B1 PL 221B1
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PL
Poland
Prior art keywords
producing
artificial sponge
sponge
pulp
solution
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Application number
PL221A
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Polish (pl)
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Publication of PL221B1 publication Critical patent/PL221B1/en

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KI. 39be.Wedlug znanego sposobu wyrobu sztucznej gabki postepowanie polegalo na mieszaniu skoncentrowanego roztworu pochodnej celulozy z materjalami wlókni- stemi i latwo rozpuszczalnemi cialami, poczem otrzymana papka byla wprowa¬ dzana do wody, rozcienczonych kwasów, lub roztworów soli, wskutek czego ciala rozpuszczalne przechodzily do roztworu, a pochodna celulozy osadzala sie, oprzedu- jac i wiazac wlókno i dajac w rezultacie dziurkowate cialo, przypominajace wy¬ gladem gabke.Niniejszy wynalazek polega na zamianie skoncentrowanego roztworu pochodnej celulozy, splastyczniona zapomoca uprzed¬ niej obróbki roztworami alkaljów i lagod- nem ogrzewaniem kazeina lub t. p. cialami bialkowemi, zmieszanemi z materjalami wlóknistemi i latwo rozpuszczajacemi sie cialami, poczem masa obrabia* sie substan¬ cjami, przeprowadzajacemi bialko w stan nierozpuszczalny, jak naprzyklad roztwo¬ rem aldehydu mrówkowego, i po tej ope¬ racji luguje.Przyklad: Rozpuszczona w slabym lugu sodowym lub potasowym kazeine nalezy oczyscic filtrowaniem lub dekantacja. Oczyszczony roztwór miesza sie zwolna i osadza kwa¬ sem solnym, najlepiej z niewielka do¬ mieszka kwasu octowego, i wydzielony osad nastepnie przemywa. Przemyty osad traktuje sie malemi ilosciami lugu alka- ljowego lub amonjaku, dzieki czemu otrzy¬ muje sie mase plastyczna, która pozbawia sie mozliwie dokladnie wody starannem wygniataniem. Papka pozostawiona w spo¬ koju zaczyna wydzielac z siebie nadmiar uzytego lugu i, w miare wydzielania sielugu, twardniec coraz bardziej. Ten sposób obrabiania kazeiny i innych podobnych cial bialkowych jest powszechnie znany.Ze stwardnialej masy bierze sie 25 do 30 g, nagrzewa w misce od 50 do 60°, dodaje wlókien bawelnianych lub konopnych, 10$ na wage mieszaniny i nastepnie wgniata przy ogrzewaniu w ciastowata mase sze¬ sciokrotna na wage ilosc soli kuchennej, cukru, soli glauberskiej lub t. p. W czasie tej operacji pozadanem jest stopniowo i powoli obnizac temperature. Po dosta- tecznem pokryciu i oblepieniu wlókien i krysztalów lepka masa, redukuje sie temperature zupelnie, urabia papke sto¬ sownie do potrzeby w odpowiednia forme i wprowadza do roztworu aldehydu mrów¬ kowego. Zamiast rozczynu aldehydu mrów¬ kowego mozna, rozumie sie, stosowac i inne substancje, przeprowadzajace bialko w stan nierozpuszczalny, a wiec kwas garbnikowy, tanine, sole chromowe it. p.Po 12 godzinach mieszanine wyjmuje sie z kapieli i przemywaniem najpierw w zim¬ nej, nastepnie zas w cieplej wodzie usuwa latwo rozpuszczalne domieszki. Po do- kladnem przemyciu produkt jest gotowy. PL PLKI. 39be. According to the known method of producing artificial sponge, the procedure consisted in mixing a concentrated solution of a cellulose derivative with fibrous materials and easily soluble bodies, then the obtained pulp was introduced into water, diluted acids, or salt solutions, as a result of which the soluble bodies went into solution, and the cellulose derivative precipitated, precipitating and binding the fiber and resulting in a porous body resembling a sponge in appearance. The present invention consists in replacing the concentrated solution of a cellulose derivative, plasticized by means of previous treatment with alkali solutions and mild heating, with casein or other protein bodies, mixed with fibrous materials and easily soluble bodies. The pulp is then treated with substances that insoluble protein, such as formaldehyde solution, and then leached. Example: Casein dissolved in a weak sodium or potassium lye should be purified by filtration or decantation. The purified solution is slowly stirred and settled with hydrochloric acid, preferably with a small addition of acetic acid, and the separated precipitate is then washed. The washed precipitate is treated with small amounts of alkali lye or ammonia, resulting in a plastic mass that is thoroughly kneaded to remove as much water as possible. Left undisturbed, the pulp begins to exude excess lye and, as the lye is exuded, hardens increasingly. This method of processing casein and other similar protein substances is widely known. Take 25 to 30 g of the hardened mass, heat it in a bowl to 50 to 60°C, add cotton or hemp fibers, 10 g by weight of the mixture, and then knead six times the weight of table salt, sugar, Glauber's salt, or the like into a dough-like mass while heating. During this operation, it is desirable to gradually and slowly lower the temperature. After the fibers and crystals are sufficiently covered and encased in the viscous mass, reduce the temperature completely, knead the pulp as needed into the appropriate form, and add it to the formaldehyde solution. Instead of formaldehyde solution, one can, of course, use other substances that render protein insoluble, such as tannic acid, tannin, chromium salts, etc. After 12 hours, the mixture is removed from the bath and easily soluble impurities are removed by washing first in cold water, then in warm water. After thorough washing, the product is ready.

PL221A 1919-09-10 The method of producing an artificial sponge. PL221B1 (en)

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PL221B1 true PL221B1 (en) 1924-06-28

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