PL56720B3 - - Google Patents
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- PL56720B3 PL56720B3 PL115957A PL11595766A PL56720B3 PL 56720 B3 PL56720 B3 PL 56720B3 PL 115957 A PL115957 A PL 115957A PL 11595766 A PL11595766 A PL 11595766A PL 56720 B3 PL56720 B3 PL 56720B3
- Authority
- PL
- Poland
- Prior art keywords
- solution
- polyvinyl alcohol
- fibers
- relation
- added
- Prior art date
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- 239000000835 fiber Substances 0.000 claims description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 6
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 6
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical class NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000007669 thermal treatment Methods 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims 1
- 229920002554 vinyl polymer Polymers 0.000 claims 1
- 239000000243 solution Substances 0.000 description 5
- 150000001879 copper Chemical class 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
Pierwszenstwo: Opublikowano: 20.XII.1968 56720 KL 29 b, 3/60 MKP D 01 f , 1/02.UKD Twórca wynalazku: mgr inz. Bohdan Dawidowicz Wlasciciel patentu: Instytut Wlókien Sztucznych i Syntetycznych, Lódz (Polska) Sposób zabezpieczania wlókien polialkoholowinylowych przed zmianami barwy wystepujacymi podczas obróbki termicznej Przedmiotem wynalazku jest sposób zabezpie¬ czania wlókien polialkoholowinylowych przed zmianami barwy wystepujacymi podczas obróbki termicznej, wedlug patentu glównego nr 52 120.W opisie patentu glównego nr 52120 podany jest sposób zabezpieczenia wlókien polialkoholo¬ winylowych przed zmianami barwy wystepujacy¬ mi podczas obróbki termicznej polegajacy na tym, ze do jednej lub kilku kapieli formujacych i/lub do roztworu przedzalniczego dodaje sie soli mie¬ dzi, przy czym zawartosc soli miedzi w kapielach formujacych wynosi 0,01—5 g/l kapieli, a w roz¬ tworze przedzalniczym 0,01—2°/o wagowych w sto¬ sunku do zawartosci polialkoholu winylowego w roztworze.Stwierdzono doswiadczalnie i to jest przedmio¬ tem wynalazku, ze dodatek cyjanoguanidyny do roztworu przedzalniczego w ilosci 0,05—2% w sto¬ sunku do zawartosci polialkoholu winylowego w roztworze przedzalniczym wplywa bardzo korzy¬ stnie na dalsze poglebienie intensywnosci bialej barwy wlókna po obróbce termicznej.Przyklad. Wlókna przedzie sie z 15% wod¬ nego roztworu polialkoholu winylowego po jego 10 15 20 uprzedniej filtracji i odpowietrzeniu. Do roztworu przedzalniczego, w trakcie jego przedzenia, do¬ daje sie 0,4% cyjanoguanidyny w przeliczeniu na czysty polialkohol winylowy. Wlókna formuje sie w kapieli koagulacyjnej o temperaturze 45°C za¬ wierajacej okolo 400 g/l siarczanu sodowego i okolo 0,5 g/l kapieli siarczanu miedzi. Wlókna rozciaga sie o 100%, plucze czysta woda o temperaturze 15—20°C i suszy. Po wysuszeniu kabel wlókna rozciaga sie w stosunku 3:1 w temperaturze 200°C i obrabia termicznie przez 2 minuty w tem¬ peraturze 230°C. Otrzymuje sie zupelnie biale wlókno. PLPriority: Published: 20.XII.1968 56720 KL 29 b, 3/60 MKP D 01 f, 1 / 02.UKD Inventor: mgr inz. Bohdan Dawidowicz Patent owner: Institute of Artificial and Synthetic Fibers, Lodz (Poland) Method of protection The subject of the invention is a method of protecting polyvinyl alcohol fibers against color changes occurring during thermal treatment, according to the main patent No. 52,120. occurring during the thermal treatment, i.e. copper salts are added to one or more forming baths and / or to the pre-investment solution, the copper salt content of the forming baths being 0.01-5 g / l of the bath, and 0.01-2% by weight of the pre-mixed solution in relation to the polyvinyl alcohol content in the solution. Experimentally and it is the subject of the invention, the addition of cyanoguanidine to the pre-limiting solution in an amount of 0.05-2% in relation to the polyvinyl alcohol content in the pre-limiting solution has a very favorable effect on further deepening the intensity of the white color of the fiber after the heat treatment. Example. The fibers will change from a 15% aqueous solution of polyvinyl alcohol after it has been filtered and deaerated. 0.4% of cyanoguanidine, based on pure polyvinyl alcohol, is added to the pre-limiting solution during its transfer. The fibers are formed in a coagulation bath at 45 ° C. containing about 400 g / l of sodium sulfate and about 0.5 g / l of copper sulfate bath. The fibers are stretched by 100%, washed with clean water at a temperature of 15-20 ° C and dried. After drying, the fiber cable is stretched 3: 1 at 200 ° C and heat treated for 2 minutes at 230 ° C. You get a completely white fiber. PL
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL56720B3 true PL56720B3 (en) | 1968-12-27 |
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