PL72908B2 - - Google Patents
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- Publication number
- PL72908B2 PL72908B2 PL14493970A PL14493970A PL72908B2 PL 72908 B2 PL72908 B2 PL 72908B2 PL 14493970 A PL14493970 A PL 14493970A PL 14493970 A PL14493970 A PL 14493970A PL 72908 B2 PL72908 B2 PL 72908B2
- Authority
- PL
- Poland
- Prior art keywords
- temperature
- latex
- polyacrylonitrile fibers
- minutes
- solution
- Prior art date
Links
- 239000000835 fiber Substances 0.000 claims description 18
- 239000004816 latex Substances 0.000 claims description 12
- 229920000126 latex Polymers 0.000 claims description 12
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 10
- 239000004745 nonwoven fabric Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000004090 dissolution Methods 0.000 claims description 4
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 229920003006 Polybutadiene acrylonitrile Polymers 0.000 claims description 2
- 239000011592 zinc chloride Substances 0.000 claims description 2
- 235000005074 zinc chloride Nutrition 0.000 claims description 2
- BWYMLYMBQPWYCL-UHFFFAOYSA-N [Na].[Rh] Chemical compound [Na].[Rh] BWYMLYMBQPWYCL-UHFFFAOYSA-N 0.000 claims 1
- 229920000297 Rayon Polymers 0.000 description 3
- 210000002268 wool Anatomy 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 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 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- CXKCTMHTOKXKQT-UHFFFAOYSA-N cadmium oxide Inorganic materials [Cd]=O CXKCTMHTOKXKQT-UHFFFAOYSA-N 0.000 description 1
- CFEAAQFZALKQPA-UHFFFAOYSA-N cadmium(2+);oxygen(2-) Chemical compound [O-2].[Cd+2] CFEAAQFZALKQPA-UHFFFAOYSA-N 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Landscapes
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Description
Pierwszenstwo: Zgloszenie ogloszono: 05.05.1973 Opis patentowy opublikowano: 20.12.1974 72908 KI. 8k,l/04 MKP D06m fci^TLLNI.Moz A. .na PB Urzeciis Patentowego Twórca wynalazku: Stefan Lewandowski Uprawniony z patentu tymczasowego: Instytut Wlókiennictwa, Lódz (Polska) Sposób oddzielania substancji wiazacej od wlókien poliakrylonitrylowych Przedmiotem wynalazku jest sposób oddzielania substancji wiazacej od wlókien poliakrylonitrylowych we wlókninach klejonych.Ilosc i równomiernosc naniesienia lateksu na runo stanowi jeden z waznych elementów warunkujacych jakosc wlókniny. Okreslenie zawartosci lateksu za¬ wartego we wlókninie podczas kontroli miedzyope- racyjnej daje technologowi wskazówki odnosnie zmiany rezimu technologicznego formowania wlókien klejonych lub zmiany sposobu nanoszenia lateksu.Podstawa do okreslenia ilosci lateksu we wlókni¬ nie klejonej jest rozpuszczenie wlókien, z których wykonane jest runo, a nastepnie ustalenie pozosta¬ losci lateksowej.Stosowane dotychczas metody rozpuszczania wló¬ kien poliakrylonitrylowych kwasem siarkowym czy kwasem azotowym nie maja zastosowania do wy¬ trawiania wlókien poliakrylonitrylowych od lateksu we wlókninie, poniewaz rozpuszczalniki te w znacz¬ nej mierze uszkadzaja równiez blonki lateksowe.Celem wynalazku jest opracowanie sposobu od¬ dzielania we wlókninie klejonej lateksu polibutadie- no-akrylonitrylowego od wlókien poliakrylonitrylo¬ wych przez wytrawianie na drodze chemicznej wló¬ kien, przez zastosowanie takich rozpuszczalników, które rozpuszczaja wlókno, a nie naruszaja blonek lateksowych.Sposób wedlug wynalazku polega na tym, ze od¬ powiednio przygotowane próbki wlókniny klejonej, rozwarstwione ha dwie czesci zanurza sie do wody 10 20 25 30 2 o temperaturze 60—80°C na okres okolo 10 minut, nastepnie suszy w czasie od 3 do 3,5 godzin w tem¬ peraturze 100—110°C, a nastepnie umieszcza sie nad bezwodnym chlorkiem wapniowym i wazy. Wysu¬ szone próbki wlókniny klejonej zalewa sie roztwo¬ rem 50—60% rodanku sodowego lub 60—70% roz¬ tworem chlorku cynkowego. Proces rozpuszczania wlókna przeprowadza sie w temperaturze 50—70°C w czasie od 8 do 15 minut. Pozostale po rozpuszcze¬ niu wlókien poliakrylonitrylowych blonki lateksowe plucze sie kilkakrotnie w wodzie destylowanej a na¬ stepnie suszy i wazy.W przypadku wlóknin klejonych, których runo stanowi mieszanka wlókna poliakrylonitrylowego z welna lub wlóknem wiskozowym sposób wytra¬ wiania wlókien od lateksu przeprowadza sie naste¬ pujaco: próbke wlókniny odpowiednio przygotowa¬ na traktuje sie najpierw roztworem etylenodwuami- ny z tlenkiem kadmu, który rozpuszcza welne i wlók¬ no wiskozowe, a nie rozpuszcza wlókna poliakrylo¬ nitrylowego i lateksu. Po wytrawieniu welny lub wlókna wiskozowego, wlókno poliakrylonitrylowe wchodzace w sklad wlókniny wytrawia sie sposo¬ bem wedlug wynalazku.Sposób wedlug wynalazku pozwala na dokladne wyznaczenie ilosci i stopnia równomiernosci roz¬ mieszczenia lateksu we wlókninach klejonych, któ¬ rych runo stanowia wlókna poliakrylonitrylowe lub ich mieszanka z welna albo wlóknem wiskozowym. 72 90872 908 PL PLPriority: Application announced: May 5, 1973 Patent description was published: December 20, 1974 72908 KI. 8k, l / 04 MKP D06m fci ^ TLLNI.Moz A. .na PB Patent Urzeciis Inventor: Stefan Lewandowski Authorized by a temporary patent: Textile Institute, Lodz (Poland) Method for separating the binder from polyacrylonitrile fibers The subject of the invention is the method of separating the binder from polyacrylonitrile fibers in bonded nonwovens. The amount and uniformity of latex application on the fleece is one of the important elements determining the quality of the nonwoven fabric. Determining the latex content in the nonwoven fabric during intersoperative control gives the technologist indications regarding the change of the technological regime of glued fiber formation or the change of the method of latex application. The basis for determining the amount of latex in the glued fiber is the dissolution of the fibers from which the fleece is made, and then determining the latex residue. The methods used to dissolve polyacrylonitrile fibers with sulfuric acid or nitric acid are not applicable to the etching of polyacrylonitrile fibers from latex in non-woven fabric, because these solvents also significantly damage the latex blanks. development of a method of separating polybutadiene-acrylonitrile latex in a bonded nonwoven fabric from polyacrylonitrile fibers by chemical etching of the fibers, by using such solvents that dissolve the fiber and do not disturb the latex membranes. According to the invention, it consists in the fact that properly prepared samples of glued nonwoven fabric, delaminated and two parts, are immersed in water at a temperature of 60-80 ° C for a period of about 10 minutes, then dried for 3 to 3, 5 hours at 100-110 ° C, and then placed over anhydrous calcium chloride and vases. Dried out samples of glued nonwoven fabric are flooded with a solution of 50-60% sodium dicide or 60-70% zinc chloride solution. The fiber dissolution process is carried out at a temperature of 50-70 ° C for 8 to 15 minutes. The latex blanks remaining after the dissolution of polyacrylonitrile fibers are rinsed several times in distilled water, and then dried and then dried. pujaco: a properly prepared nonwoven sample is first treated with a solution of ethylene diamine with cadmium oxide, which dissolves wool and viscose fiber and does not dissolve polyacrylonitrile fibers and latex. After etching the wool or the viscose fiber, the polyacrylonitrile fiber constituting the nonwoven fabric is etched with the method according to the invention. made of wool or rayon. 72 90 872 908 PL PL
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL14493970A PL72908B2 (en) | 1970-12-12 | 1970-12-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL14493970A PL72908B2 (en) | 1970-12-12 | 1970-12-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL72908B2 true PL72908B2 (en) | 1974-08-31 |
Family
ID=19952928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL14493970A PL72908B2 (en) | 1970-12-12 | 1970-12-12 |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL72908B2 (en) |
-
1970
- 1970-12-12 PL PL14493970A patent/PL72908B2/pl unknown
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