DE20121102U1 - knitted - Google Patents

Description

Weihermüller &'Voigtmann Nuremberg, 17 December 2001 GmbH & Co KG Reg. No. 31352

Knitted fabric
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The innovation relates to a knitted fabric, for example for a stocking, a support stocking, a medical compression stocking, a pair of tights, a pair of support tights or a pair of medical compression tights according to the preamble of claim 1.

Such stockings and tights have been around for a long time. They are used to prevent or alleviate venous diseases or when there is a risk of thrombosis.

However, they are not able to offer protection against electromagnetic radiation - so-called electrosmog. For certain groups of people, especially pregnant women, preventing the effects of electromagnetic radiation is of crucial importance.

The innovation is therefore based on the task of creating a knitted fabric that shields the undesirable effect of electromagnetic radiation at least in parts of the knitted fabric.

To solve the problem, it is proposed to use at least a proportion of conductive thread material in the areas of the knitted fabric to be shielded.

Advantageous embodiments emerge from the subclaims. . ...

The innovation is explained below with reference to the drawing figure, for example. It shows:

Fig. 1 a right side of a 2:2 backed bond for the conductive material.

As can be seen from Fig. 1, a conductive thread 13 is incorporated into the conventional knitted fabric 10, for example consisting of textile threads II and 12.

The type of incorporation and the proportion of conductive threads 13 understandably depends on the intensity with which electromagnetic radiation is to be shielded.

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For example, in the case of purely precautionary shielding against electromagnetic radiation generally occurring or suspected in the environment, the proportion of conductive threads 13 can be kept relatively low; if higher radiation is expected, particularly in the X-ray range, and in particularly hazardous situations, the proportion of conductive threads 13 in the knitted fabric 10 is selected to be higher overall.

The proportion of conductive threads 13 is thus basically adapted to the requirements.

Silver-coated, untextured threads, in particular silver-coated untextured polyamide 6.6 multifilament threads with a titre of approximately “den70F34/2” can be used as conductive threads 13.

In addition to good electrical conductivity and good skin compatibility, silver also has important antibacterial properties.

In principle, other conductive materials can also be chosen, although the specifics of the individual case must of course be taken into account.

Depending on the required intensity of the shielding, higher proportions of conductive material up to 100% conductive material can be selected instead of the conductive coatings mentioned above. For example, stranded metal threads, especially those made of silver, can be selected.

In order to achieve sufficient flexibility of the thread 13, which may consist solely of conductive material, it can be constructed from a large number of individual wires or filaments, each with only a small individual cross-section.

Within the framework of the given technical and cost specifications, a conductive and skin-friendly thread material suitable for the individual case can be selected.

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The "2:2 backed" weave has proven to be particularly advantageous as a knit weave for the conductive material, as it ensures good durability and the conductive material comes into contact with the skin at as few binding points as possible. Such a knit weave is shown in Fig. 1. ■ -

The conductive thread .13 runs as shown in Fig. ¹¹ in a "2:2 backed" weave for two stitches together with one of the basic threads 11 or 12 and then overlaps two stitches of the basic thread 11 or 12 lying afloat. . . ■ .

Of course, a suitable thread material (titer, number of filaments, degree of crimp) must also be selected for the base threads 11 and 12. Polyamide 6.6 textured dtex 44F34/2 has proven to be suitable here.

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A suitable storage feeder is particularly advantageous for compensating for differences in thread tension. This achieves the best results in terms of uniformity of thread tension.

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By using a conductive material, the areas covered by the knitted fabric, for example the abdomen of a pregnant woman, are protected from the effects of electromagnetic radiation. The required or achievable intensity of the shielding depends, as explained above, on the expected radiation, on the structure of the conductive thread 13 and on its proportion in the overall knitted fabric 10.

Claims (6)

1. Knitted fabric, in particular for a stocking, a support stocking, a medical compression stocking, a pair of tights, a pair of support tights or a pair of medical compression tights, characterized in that the knitted fabric has at least partially conductive thread material in the areas to be shielded. 2. Knitted fabric according to claim 1, characterized in that the conductive thread material is a silver-coated, untextured polyamide 6.6 multifilament thread. 3. Knitted fabric according to claim 2, characterized in that it is a thread ( 13 ) with a titre of "den70F34/2". 4. Knitted fabric according to claim 1, characterized in that the conductive material is a purely metallic thread ( 13 ). 5. Knitted fabric according to claim 4, characterized in that it is a strand-like, multi-strand thread of high flexibility. 6. Knitted fabric according to one of claims 1 to 5, characterized in that the knitted fabric has a "2:2 backed" weave for the conductive thread.