DE702965C - Method for preparing one-sided z. B. middle stretchable webs, especially made of acrylic or vinyl polymers - Google Patents
Method for preparing one-sided z. B. middle stretchable webs, especially made of acrylic or vinyl polymersInfo
- Publication number
- DE702965C DE702965C DE1935S0120809 DES0120809D DE702965C DE 702965 C DE702965 C DE 702965C DE 1935S0120809 DE1935S0120809 DE 1935S0120809 DE S0120809 D DES0120809 D DE S0120809D DE 702965 C DE702965 C DE 702965C
- Authority
- DE
- Germany
- Prior art keywords
- acrylic
- vinyl polymers
- sided
- preparing
- especially made
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
- A61L15/58—Adhesives
Landscapes
- Health & Medical Sciences (AREA)
- Hematology (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Laminated Bodies (AREA)
Description
Verfahren zur Vorbereitung von einseitig z. B. mit einem Klebmittel unter Zugbeanspruchung zu behandelnden dehnbaren Bahnen, insbesondere aus Acryl- oder Vinylpolymerisaten Dehnbare Vinyl- und insbesondere Acrylpolymerisate werden heute zur Herstellung von Pflastern verwendet. Bahnen oder Längsstreifen aus diesen Stoffen müssen zu diesem Zwecke einseitig mit einer Klebstoffschicht versehen werden. Dies geschieht maschinell dadurch, daß man die Streifen oder Bahnen durch Schlitze eines mit zähem Klebstoff gefüllten Behälters hindurchführt. Da die Reibung außerordentlich groß ist, tritt eine unerwünschte und schädliche starke Dehnung der Bahnen oder Stoffe während des Aufbringens des Klebstoffes ein.Method for preparing one-sided z. B. with an adhesive stretchable sheets to be treated under tensile stress, in particular made of acrylic or vinyl polymers. Stretchable vinyl and, in particular, acrylic polymers used today to make plasters. Tracks or longitudinal strips from these For this purpose, fabrics must be provided with an adhesive layer on one side. This is done mechanically by putting the strips or tracks through slits a container filled with viscous adhesive passes through it. Since the friction is extraordinary is large, there occurs an undesirable and harmful severe stretching of the webs or Substances during the application of the adhesive.
Erfindungsgemäß wird dieser Nachteil dadurch beseitigt, daß auf die nicht zu behandelnde Bahnseite ein mit Hilfe von Lösungsmitteln lösbarer Überzug in flüssiger Form als Belag aufgebracht und durch Trocknen verfestigt wird. Als besonders geeignet erweist sich als Belag ein wasserlösliches Vinylpolymerisat. According to the invention this disadvantage is eliminated in that on the the web side not to be treated has a coating that can be removed with the aid of solvents is applied in liquid form as a coating and solidified by drying. as A water-soluble vinyl polymer proves to be particularly suitable as a covering.
Zur Herstellung von Gummigeflechten ist es bereits bekannt, nichtelastische Fäden mit einzu'dechten, um während des Flechtens eine Verdehnung des Gummis und ein nachträgliches Zusammenziehen des Gummis zu verhindern; die eingeflo chtenen nichtelastischen Fäden werden gegebenenfalls, beispielsweise durch Säuren, wieder entfernt. For the production of rubber braids it is already known, non-elastic Insert the threads with the braiding to prevent stretching of the elastic and to prevent subsequent contraction of the rubber; the braided ones Inelastic threads are optionally restored, for example by means of acids removed.
Außerdem hat man schon zu- demselben-Zweck in Gummifäden eine nicht dehnbare Seele eingebettet, die nachträglich wieder herausgelöst werden soll. Aber dieses Herauslösen ist, wenn überhaupt möglich, so doch sehr schwierig, da dem Lösungsmittel der Zutritt zu der Seele nur an den Schnittseiten des Stranges möglich ist. In addition, rubber threads do not have one for the same purpose elastic soul embedded, which should be removed again afterwards. but If at all possible, this extraction is very difficult because of the solvent access to the core is only possible on the cut sides of the strand.
Der Belag, z.B. ein wasserlösliches Vinylpolymerisat, wird in gelöstem Zustand auf die eine Seite der Bahn aufgebracht, und z'var durch Aufstreichen, Aufspritzen o. dgl. Nach dem Trocknen ist die Bahn einseitig mitfeinen Belag versehen, welcher weft geringere Dehnbarkeit besitzt als die normalen Acryl- oder Vinylpolymerisate, aus denen die Bahn besteht. Wird die so vorbehandelte Bahn durch den Klebstoffbehälter hindurchgezogen, so wird eine Verdehnung nicht oder nicht mehr in dem bisherigen Maße erfolgen können. The covering, e.g. a water-soluble vinyl polymer, is dissolved in Condition applied to one side of the web, and z'var by brushing on, spraying on o. The like. After drying, the web is provided with a fine covering on one side, which weft has less elasticity than normal acrylic or vinyl polymers, that make up the track. The web pretreated in this way will pass through the adhesive container pulled through, a stretching is not or no longer in the previous one Dimensions can be made.
Nach Aufbringen der Klebstoffschicht wird der wasserlösliche Belag in einem Wasserbad wieder abgelöst, z.B. dadurch, daß man die Bahn durch ein oder mehrere Wasserbäder hindurchführt. After applying the adhesive layer, the water-soluble coating becomes detached again in a water bath, e.g. by pushing the track through an or passes through several water baths.
Selbstverständlich kann man an Stelle von wasserlöslichen Vinylprodukten auch andere Stoffe verwenden, z. B. wasserlösliche Cellulosederivate. Wesentlich ist immer, daß der aufgebrachte Belag in anderen Lösungsmitteln löslich- ist als die Bahn selbst. Of course, you can instead of water-soluble vinyl products also use other substances, e.g. B. water-soluble cellulose derivatives. Essential is always that the applied coating is soluble in other solvents than the train itself.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1935S0120809 DE702965C (en) | 1935-12-11 | 1935-12-11 | Method for preparing one-sided z. B. middle stretchable webs, especially made of acrylic or vinyl polymers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1935S0120809 DE702965C (en) | 1935-12-11 | 1935-12-11 | Method for preparing one-sided z. B. middle stretchable webs, especially made of acrylic or vinyl polymers |
Publications (1)
Publication Number | Publication Date |
---|---|
DE702965C true DE702965C (en) | 1941-02-24 |
Family
ID=7535338
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1935S0120809 Expired DE702965C (en) | 1935-12-11 | 1935-12-11 | Method for preparing one-sided z. B. middle stretchable webs, especially made of acrylic or vinyl polymers |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE702965C (en) |
-
1935
- 1935-12-11 DE DE1935S0120809 patent/DE702965C/en not_active Expired
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