PL29239B1 - Method of treating pre-bleached raw jute fibers with cold alkaline gel. - Google Patents
Method of treating pre-bleached raw jute fibers with cold alkaline gel. Download PDFInfo
- Publication number
- PL29239B1 PL29239B1 PL29239A PL2923938A PL29239B1 PL 29239 B1 PL29239 B1 PL 29239B1 PL 29239 A PL29239 A PL 29239A PL 2923938 A PL2923938 A PL 2923938A PL 29239 B1 PL29239 B1 PL 29239B1
- Authority
- PL
- Poland
- Prior art keywords
- fibers
- jute fibers
- bleached
- raw jute
- cold alkaline
- Prior art date
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- 239000000835 fiber Substances 0.000 title claims description 18
- 240000000491 Corchorus aestuans Species 0.000 title claims description 6
- 235000011777 Corchorus aestuans Nutrition 0.000 title claims description 6
- 235000010862 Corchorus capsularis Nutrition 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 239000000839 emulsion Substances 0.000 claims 1
- 239000002002 slurry Substances 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 206010062717 Increased upper airway secretion Diseases 0.000 description 1
- 240000006240 Linum usitatissimum Species 0.000 description 1
- 235000004431 Linum usitatissimum Nutrition 0.000 description 1
- 238000009960 carding Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009950 felting Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 208000026435 phlegm Diseases 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Description
Proponowano juz nadawac kedzierza¬ wosc wlóknom z juty, lnu lub innym wló¬ knom roslin lykowych w ten sposób, ze najpierw obrabiano je na zgrzeblarce, a nastepnie wprowadzano porozrywane wló¬ kna do roztworu lugu sodowego o stezeniu 10 — 24°Be, w zaleznosci od rodzaju wló¬ kna. Obróbka ta, wywolujaca kedzierza¬ wienie sie wlókien, trwa 15 minut do trzech godzin. Nastepnie wlókno bieli sie i suszy.Wedlug innego sposobu wprowadza sie bielona jute na piec minut lub dluzej do roztworu lugu sodowego o stezeniu 36°Be, a nastepnie obrabia sie kapiela z piany mydlanej. W obu przypadkach wlókno ju¬ towe zostaje dosc znacznie uszkodzone wskutek dluzszego dzialania lub wysokiej procentowej zawartosci lugu. Powstaje du¬ zo odpadków, gdy zbity material tnie sie na krajarce na wlókna o zadanej dlugosci w celu przerobienia go sposobem przedze¬ nia welny na przedze czesankowa lub su- kiennicza.Wedlug wynalazku niniejszego surowe wlókna jutowe, skladajace sie z okolo 2,5 m dlugich wiazek wlókien, bieli sie w do¬ wolny sposób w kadziach, a nastepnie przeprowadza za pomoca najlepiej zelaz¬ nych tasm przenosnikowych przez dlugie koryta, zawierajace zimny lug sodowy o stezeniu 14 — 20°Be.Poniewaz wlókna sa ulozone w kierun¬ ku podluznym, a lug sodowy ma do nichdostep ze wszystkich stron, nastepuje ske- dzierzawienie sie juz zwilzonego wlókna przy zmniejszeniu dlugosci o okolo 20% w bardzo krótkim okresie czasu, w przy¬ blizeniu w ciagu dwóch minut. Czas trwa¬ nia obróbki (najlepiej) nie powinien trwac dluzej niz osiem minut. Nastepnie prze¬ prowadza sie wlókna z tasm przenosniko¬ wych pomiedzy walcami prasujacymi i przez kapiele pluczace, po czym tnie sie je za pomoca maszyn do krajania na takie dlugosci, jakie wymagane sa do róznych sposobów przedzenia. Suszenie odbywa sie w suszarkach kanalowych.W celu wytwarzania wlókien, nadaja¬ cych sie do wyrobu delikatniejszych przedz, wlókna po oplukaniu mozna prze¬ prowadzac przez koryta z emulsjami, na¬ dajacymi wlóknom potrzebna gietkosc.Poniewaz wlókienka elementarne za¬ chowuja przy obróbce wedlug niniejszego sposobu zawsze swe pierwotne polozenie, a sfilcowanie jest wykluczone, straty w krajarkach prawie wcale nie powstaja, a z otrzymanych w ten sposób wlókien przy pózniejszym zgrzebleniu i czesaniu po¬ wstaje tylko bardzo mala ilosc odpadków.Wlókna takie, zmieszane z 20 — 50% welny, nadaja sie szczególnie do wyrobu kobierców oraz materialów na odziez meska. PLIt has already been proposed to curl fibers made of jute, flax or other fibers of the phlegm plants by first treating them on a carding machine and then introducing the torn fibers into a soda lye solution of 10-24 ° B, depending on on the type of fiber. This treatment, which causes the fibers to curl, takes 15 minutes to three hours. The fiber is then white and dried. Another method is to introduce the bleached jute for five minutes or more into a 36 ° Be soda lye, and then treat with a soapy foam bath. In both cases, the jute fiber becomes quite severely damaged due to prolonged exposure or a high percentage of keg. A lot of waste is generated when the compacted material is cut into fibers of a given length on a fiber cutter in order to transform it into a wool extension into a worsted or linen yarn. long bundles of fibers are whitened in any way in the vats and then, using preferably iron conveyor belts, through long troughs containing cold sodium liquor at a concentration of 14-20 ° Be. As the fibers are arranged in the longitudinal direction and the soda lye is accessible from all sides, the already wetted fiber is leaved, with a length reduction of about 20% in a very short period of time, approximately two minutes. The duration of the treatment should (ideally) be no more than eight minutes. The fibers are then passed with the conveyor belts between the press rolls and through the rinsing baths, and then cut with slicing machines to the lengths required for the various extensions. Drying takes place in canal dryers. always in its original position, and felting is excluded, losses in the cutters hardly arise, and only a very small amount of scrap is produced from the fibers obtained in this way when later carded and combed. They are particularly suitable for making carpets and fabrics for men's clothing. PL
Claims (2)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL29239B1 true PL29239B1 (en) | 1940-09-30 |
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