CH213743A - Process for the production of screen cloths and screen cloth produced therefrom. - Google Patents
Process for the production of screen cloths and screen cloth produced therefrom.Info
- Publication number
- CH213743A CH213743A CH213743DA CH213743A CH 213743 A CH213743 A CH 213743A CH 213743D A CH213743D A CH 213743DA CH 213743 A CH213743 A CH 213743A
- Authority
- CH
- Switzerland
- Prior art keywords
- wires
- wires made
- screen
- production
- dependent
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/10—Filter screens essentially made of metal
- B01D39/12—Filter screens essentially made of metal of wire gauze; of knitted wire; of expanded metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
- B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
- B01D39/086—Filter cloth, i.e. woven, knitted or interlaced material of inorganic material
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/08—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of halogenated hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/0604—Arrangement of the fibres in the filtering material
- B01D2239/0636—Two or more types of fibres present in the filter material
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Filtering Materials (AREA)
- Combined Means For Separation Of Solids (AREA)
- Woven Fabrics (AREA)
Description
Verfahren zur Herstellung von Siebgeweben und darnach hergestelltes Siebgewebe.
Für die verschiedensten Zwecke werden in der Technik Metalldrahtgewebe in allergrösstem Umfang als Siebroste, Abdeckungen usw. verwendet, da kein anderes Gewebematerial die erforderliche Elastizität und Härte besitzt, um für diese Zwecke verwend- bar zu sein.
Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Siebgeweben, das dadurch gekennzeichnet ist, dass als zu verwebendes Material mindestens teilweise Drähte aus organischen Kunststoffen ver- arbeitet werden.
Es hat sich nämlich gezeigt, dass über- raschenderweise Drähte aus Polymerisationskunststoffen, wie Polyvinylchlorid, Poly vinylformale oder Mischpolymerisate von verschiedenen Vinylverbindungen Tinter sich oder von Vinylverbindungen mit audern ungesättigten Verbindungen, sich zur Herstellung von Drahtgeweben vorzüglich eignen, insbesondere dann, wenn diese Eunststoffdrähte bei ihrer Herstellung eine Streckung erfahren haben. In gleicher Weise brauchbar sind Kunststoffe aus linearen organischen Hochpolymeren, wie aus kondensierten -Aminokarbonsäuren oder ihren funktionellen Derivaten, z. B.
Estern oder Urethanen, oder wie aus Kondensationsprodukten, die durch Zusammenkondensieren von Diaminen mit Dikarbonsauren oder durch Polymerisation von Laktamen entstehen. Als geeignete Ausgangsmaterialien aus dieser letzteren Gruppe seien beispielsweise genannt : lang kettige Eondensationsprodukte aus 6 Aminohexansäure oder aus Urethylan-O-Pelargon- säure sowie Kondensationsprodukte aus e-Ca prolaktam oder Eondensationsprodukte aus Hexamethylendiamin und Adipinsäure oder Pentamethylendiamin und Adipinsäure.
Derartige Kunststoffdralite lassen sich überraschenderweise genau wie Metalldrähtc verweben oder verflechten, ohne dal3 besondere tlnderungen an den Verarbeitungsma- schinen erforderlieh sind, und die daraus hergestellten Siebgewebe kommen in der Elastizität und Widerstandsfähigkeit gegen normale Beanspruchung Geweben aus Metall- drähten ausserordentlich nahe. Durch Auswahl unter den obengenannten Kunststoffgruppen, sowie durch eventuellen Zusatz von Weichmachungsmitteln und Härtungsmit- teln, hat man es in der Hand, Drahtgewebe der verschiedensten Härten und Elastizität herzustellen.
Die nach dem erfindungsgemässen Verfahren hergestellten Drahtgewebe haben vor den Metallgeweben den Vorzug, dass sie geringeres Gewicht besitzen und weniger leicht der Korrosion unterliegen, wenn sie feucht oder mit gesiebtem Gut verschmutzt liegen bleiben. Sie haben ausserdem den Vorzug, insbesondere wenn sie aus Drähten der ge- nannten Hochpolymeren bestehen oder solche Drähte enthalten, die bei der Herstellung gestreckt worden sind, dass sie durch Wärme- schrumpfung viel dichter gemacht werden können, so dass eine Engmaschigkeit erzielt wird, die im Webprozess, z. B. mit Metall- drähten allein, nicht erreicht werden kann.
Endlich ist es m¯glich, Mischgewebe aus Me talldrähten und Drähten aus linearen Hochpolymeren oder Kunststoffen, die Polyvinylchlorid enthalten, herzustellen, in denen beispielsweise die Kette aus Metalldrähten und der Schuss aus den obengenannten orga- nischen Hochpolymeren bestehen. Auch Geflechte, bei denen Metalldrähte in Schuss und Kette zusammen mit organisehen Hochpoly- meren der genannten Art verarbeitet werden, sind für manche Zwecke wertvoll.
PATENTANSPRUCII I :
Verfahren zur Herstellung von Siebgeweben, dadurch gekennzeichnet, dass als zu verwebendes Material mindestens teilweise Drähte aus organischen Kunststoffen verarbeitet werden.
Process for the production of screen cloths and screen cloth produced therefrom.
For the most varied of purposes, metal wire meshes are used to the greatest extent in technology as sieve grids, covers, etc., since no other mesh material has the necessary elasticity and hardness to be used for these purposes.
The subject matter of the invention is a method for the production of sieve fabrics, which is characterized in that wires made of organic plastics are processed at least partially as the material to be woven.
It has been shown that, surprisingly, wires made of polymerization plastics, such as polyvinyl chloride, poly vinyl formals or copolymers of various vinyl compounds or vinyl compounds with other unsaturated compounds, are ideally suited for the production of wire mesh, especially when these plastic wires are used in their Manufacturing have undergone stretching. Plastics made from linear organic high polymers, such as condensed amino carboxylic acids or their functional derivatives, e.g. B.
Esters or urethanes, or from condensation products that are formed by the condensation of diamines with dicarboxylic acids or by the polymerization of lactams. Examples of suitable starting materials from this latter group are: long-chain condensation products from 6-aminohexanoic acid or from urethylane-O-pelargonic acid and condensation products from e-Ca prolactam or condensation products from hexamethylene diamine and adipic acid or pentamethylene diamine and adipic acid.
Such plastic wires can surprisingly be woven or interwoven exactly like metal wires without requiring any special changes to the processing machines, and the meshes made from them come extremely close to meshes made of metal wires in terms of elasticity and resistance to normal stress. By choosing from the above-mentioned groups of plastics, as well as by adding plasticizers and hardening agents, it is possible to produce wire mesh of various hardnesses and elasticities.
The wire meshes produced by the method according to the invention have the advantage over metal meshes that they are lighter and less susceptible to corrosion if they remain moist or soiled with sieved material. They also have the advantage, especially if they consist of wires of the named high polymers or contain wires that have been stretched during manufacture, that they can be made much more dense by heat shrinkage, so that a close mesh is achieved in the weaving process, e.g. B. with metal wires alone cannot be achieved.
It is finally possible to produce mixed fabrics made of metal wires and wires made of linear high polymers or plastics containing polyvinyl chloride, in which, for example, the warp consists of metal wires and the weft consists of the above-mentioned organic high polymers. Braids, in which metal wires in the weft and warp are processed together with organic high polymers of the type mentioned, are also valuable for some purposes.
PATENT CLAIM I:
Process for the production of sieve fabrics, characterized in that wires made of organic plastics are processed at least in part as the material to be woven.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE869838X | 1938-12-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH213743A true CH213743A (en) | 1941-03-15 |
Family
ID=6803126
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH213743D CH213743A (en) | 1938-12-22 | 1939-12-12 | Process for the production of screen cloths and screen cloth produced therefrom. |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH213743A (en) |
FR (1) | FR869838A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1206717B (en) * | 1961-07-06 | 1965-12-09 | Karl Ulrich Schuster | Paper machine screen |
DE2502466A1 (en) * | 1975-01-22 | 1976-07-29 | Wangner Hermann | Papermaking sieve with mixed weft of synthetic yarn - with loom changing feeders automatically without stopping when spools are empty |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE896486C (en) * | 1944-07-08 | 1953-11-12 | Cassella Farbwerke Mainkur Ag | Process for the production of pile fabrics |
DE972810C (en) * | 1949-12-25 | 1959-10-01 | Oberdorfer F | Paper machine screen |
-
1939
- 1939-12-12 CH CH213743D patent/CH213743A/en unknown
-
1941
- 1941-02-06 FR FR869838D patent/FR869838A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1206717B (en) * | 1961-07-06 | 1965-12-09 | Karl Ulrich Schuster | Paper machine screen |
DE2502466A1 (en) * | 1975-01-22 | 1976-07-29 | Wangner Hermann | Papermaking sieve with mixed weft of synthetic yarn - with loom changing feeders automatically without stopping when spools are empty |
Also Published As
Publication number | Publication date |
---|---|
FR869838A (en) | 1942-02-20 |
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