DEV0002285MA - Process for reducing the electrical conductivity of hard tissue made from rayon - Google Patents
Process for reducing the electrical conductivity of hard tissue made from rayonInfo
- Publication number
- DEV0002285MA DEV0002285MA DEV0002285MA DE V0002285M A DEV0002285M A DE V0002285MA DE V0002285M A DEV0002285M A DE V0002285MA
- Authority
- DE
- Germany
- Prior art keywords
- rayon
- wash
- distilled water
- electrical conductivity
- neutral
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229920000297 Rayon Polymers 0.000 title claims description 12
- 239000002964 rayon Substances 0.000 title claims description 10
- 238000000034 method Methods 0.000 title claims description 4
- 239000012153 distilled water Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000007935 neutral effect Effects 0.000 claims description 6
- 238000010306 acid treatment Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 238000009835 boiling Methods 0.000 claims 2
- 230000002378 acidificating effect Effects 0.000 claims 1
- 238000005406 washing Methods 0.000 claims 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 241001518985 Brachychiton discolor Species 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Description
P/L81351WI1Z5I .P / L81351WI1Z5I.
ferfahren sur Herabsetzung der elektrischen Leitfähigkeit von Hart-»learn about reducing the electrical conductivity of hard- »
geweben aus Zellwolle«woven from rayon "
fereinigte Glaasstoff»Fabriken A .,Gcpurified glass fabric »factories A., Gc
Wuppertal - ElberfeldWuppertal - Elberfeld
Pur Hartgewebe^ d.h. für mit Haralösung Yerpresstes Gewebe, wurde früher nur Baumwolle verwandt« Heut® indessen stellt man diesen Werkstoff in gross®rein Umfange aus Zellwolle her und setzt ihn unt&v anderem auch in der Elektroindustrie ein« En» hut jedoch Baum» «©!!©hartgewebe gegenüber den Nachteil einer weit höheren elektrischen Leitfähigkeit« Dieser Nachteil macht sieh gexkz besonders dann geltend, wenn das Zellwollehartgewebe erhitzt wird.Pure hard tissue ^ ie Yerpresstes with Haralösung tissue was earlier only cotton related "However Heut® but provides you this material in gross®rein extent of viscose staple ago snippets un t v including in the electrical industry a" En "hat tree"" © !! © hard tissue compared to the disadvantage of a much higher electrical conductivity «This disadvantage is particularly evident when the staple fiber hard tissue is heated.
Irfindungsgemäss ist @in Wegwgefunden worden, den elektrischen Widerstand des Zellwollhartgewebes wesentlich zu verbessern.» Dies geschieht in der Weise, dass das Zellwollegewebe vor der ferpressung zu Hartgewebe zunächst einer sehwachs&uren tfasehbehandlung und sodann einer sorgfältigen Heutralwäsche unterworfen wircL Xn manchen Fällen empfiehlt ©s sich, der Säurebehandlung eine alkalische Wäsche, aweckmassig Ammoniakwäsche nachzuschalten und mit destilliertem Wasser fer* tigauwaeehen. Ein® Wäsche mit destilliertem Wasser kann auch zwischen dir Säurebehandlung und der alkalischen Wäsche vorgenommen werden« Hartgewebe aus Zellwolle, die in der erfindungsgemäseen Weise behändeJ werden sind, weisen eine elektrische Leitfähigkeit auf, die derjenigen von Baumwollehartgeweben entspricht. Anhand von Ausführungsbeispielen wird das Verfahre» nach der Erfindung nochmals erläutert.Irfindungsgemäss has been found w @in way to significantly improve the electrical resistance of rayon hard tissue. " This is done in such a way that the staple viscose tissue is first subjected to a wax & ure fiber treatment and then a careful neutral wash before pressing into hard tissue. In some cases, it is advisable to follow the acid treatment with an alkaline wash, a moderate amount of ammonia wash and then wash with distilled water. A wash with distilled water can also be carried out between the acid treatment and the alkaline wash. Hard tissue made of rayon, which can be handled in the manner according to the invention, has an electrical conductivity that corresponds to that of hard cotton tissue. The method according to the invention is explained again on the basis of exemplary embodiments.
Augführu η_κ 8. b β j g g j e l e ; Augfü hru η_κ 8. b β jg gjel e;
1,) Ein entschliehtetes Zellwollegewebe wird mit einer alkoholischen BarssliSsung zu Hartgewebe -^erpresst und seiest dann eine elektrisch® Leitfähigkeit von 71,5/" S auf. Wird jedoch das gleiche Zellwollegewebe vor seiner ?erpressong eine Stund© lang bei 20° mit einer Salzsäure von 5 g/l HCl behandelt und dann zunächst mit Leitungswasser und schliesslich mit destilliertem Wasser sorgfältig neutral ge«» waschen, so wird die elektrische Leitfähigkeit auf 42M S gesenkt«1,) A stripped rayon tissue is blackmailed into hard tissue with an alcoholic bar solution and then has an electrical conductivity of 71.5 / "S. If, however, the same rayon tissue is blackmailed for an hour at 20 ° with an Treated hydrochloric acid of 5 g / l HCl and then carefully washed neutral with tap water and finally with distilled water, the electrical conductivity is lowered to 42 M S "
2») tfird das gleiche Zellwollegewebe vor seiner Verpressung gumit 5 g/l HCl eine Stunde lang bei 20p behandelt, sodann mitThe same rayon tissue is treated with 5 g / l HCl for one hour at 20 p before it is pressed, then with
Claims (1)
Family
ID=
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE807395C (en) | Process for the impregnation of fibers with synthetic, chain-shaped polyamides | |
| DE220349C (en) | ||
| DEV0002285MA (en) | Process for reducing the electrical conductivity of hard tissue made from rayon | |
| DE556393C (en) | Process for sizing fibers | |
| DE1796072C2 (en) | Process for the production of a carbon fiber material starting from a fiber material consisting essentially of polyvinyl alcohol | |
| DE1258255B (en) | Process for the production of hydrophobic, water-resistant or wash-resistant nonwovens, preferably based on natural and / or regenerated cellulose | |
| DE506129C (en) | Process for impregnating porous materials and manufacturing molding compounds from porous and non-porous fillers | |
| DE826590C (en) | Process for reducing the electrical conductivity of hard tissue made of rayon | |
| DE902003C (en) | Process for refining folded cellulose | |
| DE924564C (en) | Process for refining cellulose or cellulose hydrate textiles | |
| AT234625B (en) | Process for continuously felting and shrinking wool | |
| DE870543C (en) | Process for improving the properties of fully synthetic fibers | |
| DE930550C (en) | Filling for pillows, mattresses, quilts, cushions, etc. like | |
| AT226192B (en) | Process for the production of hydrophobic, water- or wash-resistant nonwovens | |
| AT224072B (en) | Process for finishing, in particular for improving the mechanical properties, of cellulose-containing textile material | |
| DE146701C (en) | ||
| DE2007210C3 (en) | Process for improving the impregnation of cellulose-containing structures with boron- or metal-containing compounds | |
| AT153406B (en) | Shaped structures made of braids and. Like. And process for their preparation. | |
| DE963365C (en) | Process for the manufacture of blood substitutes | |
| DE1107183B (en) | Process for the production of nonwovens resistant to chlorine-containing bleach | |
| DE574548C (en) | Mixed fabric and process for its manufacture | |
| DE1696223C3 (en) | Process for the production of nonwovens. Eliminated from: 1569099 | |
| DE910163C (en) | Process for refining folded cellulose | |
| DE1494651C (en) | Process for the production of crimped polyvinyl alcohol fibers | |
| DE295816C (en) |