PL8517B1

PL8517B1 - A method of bleaching and cleaning fibers of vegetable origin with the use of concentrated lures.

Info

Publication number: PL8517B1
Application number: PL8517A
Authority: PL
Filing date: 1927-05-09
Publication date: 1928-03-31

Description

Proces bielenia wlókien pochodzenia ro¬ slinnego, a w szczególnosci bawelny, skla¬ dal sie dotychczas z trzech procesów nie¬ naleznych od siebie i tylko fabrykacyjnie z soba zwiazanych, a mianowicie z od- szlichtowywania (w tkaninach i przedzy), varzenia (gotowania) i bielenia wlasciwe¬ go przy pomocy srodków utleniajacych a czasem odtleniajacych. Bez bielenia wla¬ sciwego udawalo sie dotychczas osiagnac tylko tak zwana pólbiel.Wedlug wynalazku niniejszego proces odszlichtowywania wiaze sie w sposób gene¬ tyczny z procesem warzenia, a proces bie¬ lenia przy pomocy srodków utleniajacych lub odtleniajacych staje sie zbedny. Ogól¬ ny czas bielenia skraca sie bardzo znacz¬ nie, a jeszcze wyrazniejsze sie to staje przy zastosowaniu pracy ciaglej. Wlókna obro¬ bione wedlug niniejszego wynalazku posia¬ daja kilkakrotnie wieksza zdolnosc przyj¬ mowania barwników, daja wieksza jaskra w osc i równomiernosc wyfarbowan, biel trwalsza na parowanie i lezenie oraz cen¬ ny chwyt wlókna w dotyku.Przyklad, Tkanine bawelniana zanurza sie na 25 minut do roztworu, zawierajace¬ go 80 g kwasu siarkowego 66° Be i 10 g srodka zwilzajacego i emulgujacego (np, Flerhenolu PF) w litrze, plócze, gotuje w roztworze, zawierajacym 250 g NaOH i 5 g srodka zwilzajacego i emulgujacego (np Flerhenolu M) w litrze w ciagu 60 minut, plócze, kwasi w ciagu 30 minut w roztwo¬ rze, zawierajacym 200 g kwasu siarkowego 66 Be i 8 g srodka zwilzajacego remulgu-jacego (np. Flerhenolu PF) w litrze przy 10°C, plócze, pierzc w mydle, lekko zakwa¬ sza i plócze. PL PLThe bleaching process of vegetable fibers, and in particular cotton, has so far consisted of three independent and only fabrication-related processes, namely desludging (in fabrics and yarns), brewing (cooking) and proper bleaching with oxidizing agents and sometimes deoxidizing agents. Until now, only so-called half-whitening has been achieved without proper bleaching. According to the present invention, the degumming process is genetically linked to the brewing process, and the bleaching process with oxidizing or deoxidizing agents becomes redundant. The overall bleaching time is greatly reduced, and this becomes even more pronounced when using continuous operation. The fibers treated in accordance with the present invention have several times greater ability to absorb dyes, give greater glaucoma and uniformity of dyes, white more durable to evaporation and lying, and a valuable touch of the fiber to the touch. For example, a cotton fabric is immersed on 25 minutes into a solution containing 80 g of sulfuric acid 66 ° Be and 10 g of wetting and emulsifying agent (e.g. Flerhenol PF) per liter, loaf, boiling in a solution containing 250 g of NaOH and 5 g of wetting and emulsifying agent (e.g. Flerhenol M) per liter within 60 minutes, rinse, acidified for 30 minutes in a solution containing 200 g of sulfuric acid 66 Be and 8 g of a remulsifying agent (e.g. Flerhenol PF) per liter at 10 ° C, , wash in soap, slightly sour and spits. PL PL

Claims

1. Patent claims. 1. L The method of bleaching and purifying fibers of vegetable origin with the air of concentrated liquors, characterized by the fact that the plant fibers are acidified, burnt, boiled (boiled) in strong liquors at a concentration of more than 12%, and then the loins again acidify , loops, feathers and acidifies,

2. The method according to claim The method of claim 1, characterized in that wetting and emulsifying agents may be added in individual operations.

3. The method according to p. 1 and 2, characterized in that acidification can take place in strong inorganic acids, but at a low temperature and without the access of air.

4. The method according to p. 1, 2 and 3, whereby acidification can take place in strong organic acids at temperatures up to boiling, including but without the access of air.

5. A variant of the method according to claim As in 1, 2, 3 and 4, characterized in that some or all of the phases of the procedure are repeated. W. Kaczkowski. Dhik L. Boguslawski, Warsaw. * PL PL