DE2357189A1 - Felt pen tips - contain wear-resistant additives to aid longevity and dimensional stability - Google Patents
Felt pen tips - contain wear-resistant additives to aid longevity and dimensional stabilityInfo
- Publication number
- DE2357189A1 DE2357189A1 DE2357189A DE2357189A DE2357189A1 DE 2357189 A1 DE2357189 A1 DE 2357189A1 DE 2357189 A DE2357189 A DE 2357189A DE 2357189 A DE2357189 A DE 2357189A DE 2357189 A1 DE2357189 A1 DE 2357189A1
- Authority
- DE
- Germany
- Prior art keywords
- dimensional stability
- longevity
- aid
- felt pen
- resistant additives
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K1/00—Nibs; Writing-points
- B43K1/12—Writing-points comprising fibres; Felt pads
Landscapes
- Pens And Brushes (AREA)
Abstract
Description
Hannover, den 15.11.1973 pat-ht-wfHanover, November 15, 1973 pat-ht-wf
Verfahren zur Herstellung von Faserschreiber-Schreibdochten Process for the production of fiber-tip writing wicks
Das -ftatent ... (Patentanmeldung P 2j5 38 605.2) betrifft ein Verfahren zur Herstellung von Pasersträngen aus Thermoplasten insbesondere zur Verwendung als Schreibdochte in Faserschreibern. Nach diesem Verfahren soll ein Bündel von Fasern von der Rolle oder unmittelbar aus Spinndüsen in eine formende Matrize geführt und darin einer Wärmeeinwirkung ausgesetzt werden, wobei das Material an dieser Stelle gleichzeitig einem Druck ausgesetzt ist und die Temperaturführung so abgestimmt ist, daß jeweils nur eine Oberflächenerwärmung bis knapp unterhalb des Schmelzpunkts des verwendeten Thermoplasten stattfindet, und daß dadurch die oberflächig plastischen Stränge beim Wiedererkalten an den Kontaktstellen miteinander verkleben.The -ftatent ... (patent application P 2j5 38 605.2) relates to a method for the production of fiber strands from thermoplastics, in particular for use as writing wicks in fiber pens. According to this procedure, a bundle of fibers should be taken from the roll or fed directly from spinnerets into a forming die and exposed to heat at the same time, the material is subjected to pressure and the temperature control at this point is coordinated so that only one surface heating to just below the melting point of the thermoplastics used takes place, and that thereby the superficially plastic strands during Glue them together at the contact points when they have cooled down again.
Weitere Arbeiten in Fortführung des Erfindungsgedankens haben gezeigt, daß es zweckmäßig und vorteilhaft ist, dem thermoplasten Material in der Schmelze abriebfeste Beimengungen zur Erhöhung der Formstabilität, der Abriebfestigkeit und der Lebensdauer des Endprodukts beizugeben. Als solche Beigaben werden vornehmlich Glasfaser, Molybdändisulfid oder Metallwhysker verwendet,Further work in continuation of the inventive concept have shown that it is expedient and advantageous to make the thermoplastic material abrasion-resistant in the melt Additions to increase the dimensional stability, the abrasion resistance and the service life of the end product to be added. Glass fiber, molybdenum disulphide or metal whysker are mainly used as such additions.
509827/0307509827/0307
ORIGINAL INSPECTEDORIGINAL INSPECTED
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2357189A DE2357189A1 (en) | 1973-11-16 | 1973-11-16 | Felt pen tips - contain wear-resistant additives to aid longevity and dimensional stability |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2357189A DE2357189A1 (en) | 1973-11-16 | 1973-11-16 | Felt pen tips - contain wear-resistant additives to aid longevity and dimensional stability |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2357189A1 true DE2357189A1 (en) | 1975-07-03 |
Family
ID=5898240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2357189A Pending DE2357189A1 (en) | 1973-11-16 | 1973-11-16 | Felt pen tips - contain wear-resistant additives to aid longevity and dimensional stability |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2357189A1 (en) |
-
1973
- 1973-11-16 DE DE2357189A patent/DE2357189A1/en active Pending
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OD | Request for examination | ||
OHN | Withdrawal |