DE2656043C2 - Highly elastic in the warp, easily tearable in the weft direction, self-adhesive or adhesively coated wide bandage fabric - Google Patents

Description

a) as an elastic element twisted up single cotton threads in the warp direction, rayon threads, Cotton / cellulose threads or twisted cotton-Z cellulose spun crepe threads (14, 14a, 15, 15a; different direction of rotation and covered polyurethane or rubber thread (16), which is made of cotton, rayon or polyfilen textured synthetic threads are wound,

b) in the weft direction threads made of cotton, rayon or a mixture of cotton / Rayon (17) and

c) intermizellar deposits of titanium dioxide, Having silicon dioxide, aluminum oxide in the macromolecular system of the individual fibers, with at least 5 grams of metal oxide embedded in one kilogram of tissue mass.

2. Wide bandage fabric web according to claim 1, characterized in that the fabric from with the Metal oxide sprayed, coated or coated Warp and weft threads (14, 14a, 15, 15a, 16, 17) are formed.

The invention relates to a self-adhesive which is highly elastic in the warp and easily tearable in the weft direction or self-adhesive coated wide bandage fabric made from a weft and warp thread Flat structures with embedded metal compounds.

There are elastic, self-adhesive bandages that adhere to the skin and are made of textured! Polyamide, cotton or cotton-polyurethane or cotton / rubber. However, these bandages show the disadvantage that they are created in their entire length or specially cut must, which in the course of medical treatment leads to loss of time and, moreover, to waste of sanitary napkins leads.

It is also known to impregnate bandages with a wide variety of chemical substances.

For example, DE-PS 6 46 036 relates to a process for the production of bandages that are water-soluble, basic Aluminum acetate in dry form, after which the dressing materials with a solution of an aluminum acetate from more than 'Λ to at most' Λ basicity soaked or moistened and then dried at temperatures up to 100 ° C, whereby a with powdered, water-soluble aluminum acetate provided dressing material is obtained, which after moistening with water in the same way as bandages soaked with acetic acid clay should be used, as their antiseptic, astringent and deodorant as well as their drying and absorbent Effect "is retained. With this dressing material, there is always a ready-to-use, durable and irocknes Product before. which the use of the well-known, commercially available solution of acetic acid clay with their inconveniences, such as solution form, instability and the like. The one with this bandage Any impregnation with aluminum acetate is carried out exclusively for these purposes. That With this dressing material, aluminum acetate in no way enables or supports the possibility of detachment individual bandage sections of any size by hand.

According to AT-PS 3 10 951 a dressing material and a method for its production are known, wherein this bandage consists of a thin layer of non-woven fabric, which has a plastic coating and with which is arranged behind the plastic coating a absorbent layer is provided, wherein the non-woven layer a thin, consolidated fiber pile with a thickness of 0.02 to 0.5 mm made of hydrophilic and / or hydrophobic Is fibers with a fiber thickness of 1.5 to 15 denier and a square meter weight of 12 to 60 g, a part of the individual threads of the fiber web with an anti-adhesion acrylic resin layer on the wound side is coated, which in turn still contains pigments, such as zinc oxide. Aluminum oxide, aluminum powder or silver powder and / or contains other germicidal or germ growth inhibiting substances or dispersants. This dressing material should not only quickly and safely drain the wound secretion from the wound, but should also contain healing and / or disinfecting substances of any kind on its surface and above can also be produced much faster and cheaper than previously known. The ones attached to this dressing material Pigments have only germicides

or substances that inhibit the growth of germs and in no way serve to prevent the bandage material from tearing to support by hand to each desired lengths of the bandage material without assistance from technical means, such as knives or scissors,

separate.

A process for the production of zinc glue dressings by applying a zinc oxide, glycerin, gelatin and water-containing spread with an oil content of 10 to 20 percent by weight on a carrier

gerschicht is the subject of CH-PS 2 82 2Ϊ2, whereby the disadvantages occurring with zinc glue bandages are to be avoided, which consist in the fact that zinc glue bandages prematurely brittle and hard, so that the elastic pressure essential for the healing effect, the

should be exercised by the bandage on the body part concerned, is lost after a relatively short time.

The impregnation of bandages with aluminum compounds is also evident from CH-PS 4 13 227. Here, too, the impregnation is used to reduce the effects resulting from the use of aluminum compounds maintain pharmacological properties. However, this impregnation does not result in any Hand-made bandage material that is easy to tear. It is therefore the object of the invention to provide a broadband fabric web to create that is highly elastic in the longitudinal direction and easy to tear by hand in the weft direction is.

To solve this problem, a bandage fabric web with the upper bed specified in claim 1, ^r ) was designed in such a way that the sheet c

a) single cotton threads twisted up in the warp direction as elastic element, rayon threads,

Bauinwoll- / rayon threads or twisted cotton-Zellwollspinnkrepfäden different directions of rotation and braided polyurethane or rubber threads, which are covered with cotton .. viscose wool or polyfilen textured synthetic threads are wound,

b) in the weft direction threads made of cotton, customs wool or a mixture of cotton / rayon md

c) intermicellar deposits of titanium dioxide, silicon dioxide, Has aluminum oxide in the macromolecular system of the individual fibers, being in a Kilogram of tissue mass contains at least 5 grams of metal oxide.

With a wide band fabric web designed in this way, a bandage with relatively high transverse stability is created, which, despite its high longitudinal elasticity, can easily be torn by hand in the weft direction. This is because of this achieves that the fabric in the warp from high-twisted single cotton threads or Zeliwollfäden different directions of rotation (spinning crepe threads S + Z) and braided polyurethane or rubber thread consists. The polyurethane or rubber threads are spun with cotton, rayon, polyfilem textured polyamide or other textured synthetic threads. The weft threads of this wide bandage fabric consist of cotton or rayon or a mixture of cotton / rayon. The tear strength in the weft direction despite the highly longitudinal elastic properties in the warp direction is achieved through the special tissue structure in connection with the intermizelar deposits of Metal oxides or metal salts in the macromolecular system of the individual fibers. By installing appropriate The reduction in tear strength already achieved by the fabric structure becomes salt crystals in so far as the individual fibers are attached to the sharp ones Edges and tips of the crystals are severed during the shear action. Find as storage compounds Titanium dioxide, silicon dioxide, aluminum oxide use.

Further advantageous embodiments of the invention emerge from the subclaim.

In the drawing, the subject matter of the invention is shown, for example, namely shows

F i g. 1 a wide fabric designed as a bandage, partially wound into a roll in a diagrammatic Opinion,

2 shows a fabric section of the wide fabric in an enlarged illustration in plan view partially oppositely twisted warp thread and

F i g. 3 shows a side view of the tissue section according to FIG. 2 in a section along line I-1 in F i g. 2.

The wide napkin web 10 is preferably made from a flat structure JO; / in the form of a fabric cut of great length and predetermined width and can be rolled up into a roll 12 for easy handling, one section of fabric 11 is removable (Fig. 1).

The flat structure 10 <· / according to FIG. 2 and 3 look like a fabric, the warp thread 14, 14a, 15, 15a, 16 and Has weft threads 17. The weft threads 17 consist of cotton, rayon, a mixture of cotton and rayon or other materials.

The warp thread structure preferably consists of warp threads 14, 15, 14a, 15a, each of which is used as a spinning crepe thread opposite rotation are arranged symmetrically to each other and made of cotton or rayon or cotton wool / viscose wool. At 16 there is a with Cotton or viscose spun polyurethane or rubber thread denotes. Preferably that has Woven as warp threads Spinning crepe threads with opposite rotation, braided polyurethane or rubber threads on. The braided polyurethane or rubber threads can be symmetrical between several mutually arranged spinning crepe threads with opposite rotation under each other. The warp threads consist of polyurethane spun with cotton, rayon or the like.

Has proven itself for the warp threads 14, 14a 17 tex cotton T / m 1950 Z, for the warp threads 15,15a 17 tex Cotton T / m 1950 S and 16 polyurethane for the warp threads 156dtex wound with simple, plied or twisted threads made of cotton or viscose wool. However, other materials, other dimensions and rotations or combinations thereof can also be used be used.

The fabric preferably has spider crepe threads as warp threads made of cotton or rayon or cotton / rayon in opposite rotation. As a dimension can e.g. B.

Nm 40/1
Nm 50/1
Nm 60/1
Nm 70/1
Nm 80/1

T / m approx 1590
T / m approx 1780
T / m approx 1950
T / m approx. 2100
T / m approx. 2250

be.

The dimension of the covered polyurethane or rubber thread, as well as the number of covered polyurethane or rubber threads, depends on the work capacity (tensile strength). The ratio between the wrapped polyurethane or rubber threads to the crepe threads can be 1: 1.1: 2, 1: 3, 1: 4 etc., the spinning crepe threads continuously changing in the direction of rotation, ie a spinning crepe path S follows Spinning crepe paths Z or on two spinning crepe paths S must be followed by two spinning crepe threads Z, etc.
The dimensions of the wrapping threads can vary very widely in the area of the exemplary embodiment. The covering thread can be used as a simple, plied or twisted thread.

In the fibers of the surface blank 10a are titanium dioxide, Incorporated aluminum oxide and silicon dioxide.

Coating of the fabric with these metal oxides is also possible. By connecting the specified The fabric structure with the incorporation of these metal oxides has good tear properties in the weft direction and thus easy tearing off of the tissue section 11 guaranteed by the roller 12.

In one kilogram of tissue mass there are at least 5 grams of titanium dioxide, aluminum oxide, silicon dioxide added

1 sheet of drawings

Claims (1)

Patent claims: 1. Highly elastic in the warp, easily tearable in the weft direction, self-adhesive or coated with adhesive Wide band fabric web formed from a sheet having weft and warp threads with embedded metal compounds, characterized in that the flat structure (10a;