DE3447794A1 - High-visibility or signal dye and woven or knitted fabrics provided with this - Google Patents

Abstract

The present invention describes a high-visibility protective dye especially for dyeing a two-layer fabric, the upper side of which in the clothing consists of over 80% of polyester and the lower side of which consists of wool, cellulose fibres or a mixture of at least 35% of these materials with at most 65% of polyester. The warp of the two-layer fabric consists e.g. of a thread of 100% polyester and the weft of a thread of wool, cellulose fibres or a blend of these materials with polyester. The dye for dyeing the fabric consists of a blend of 4 standard dyes known per se which e.g. are used for dyeing at 130 DEG C for 45 minutes in a 1:20 liquor and are reductively aftertreated, 1.55% of the yellow standard dye being present in the liquor, 0.2% of a red standard dye and 0.52% of another red standard dye (in each case in commercially available concentration).

Description

Warning or sisnal color and with this

provided fabric.

The invention relates to a warning or signal color and to one with this provided fabric. Warning or signal colors are used particularly in clothing by road workers, children or others from e.g. B. through the Stra3enverkellr endangered persons used.

There are warning or signal colors known, even at dusk have a clone luminosity and thus have an ilohe protective effect, this known warning or signal colors can only be used as a coating z. 13. made of polyamide, in which fluorescent pigments are embedded, apply to the tissue, whereby the disadvantage arises that the fabric becomes impermeable to air and water vapor. These coated clothing is especially popular in summer and during physical exertion only reluctantly worn There are also z. B. from DE - OS 303 13 26 warning or signal known colors that are used without a coating to dye the textile fibers of the Fabric can be used. The luminosity of these colors is less than that of color coatings. Another disadvantage is that these colors are exposed to light excessive color changes occur.

Garments made from polyester fibers are more comfortable than garments Made of coated fabrics, the physiological properties of the clothing However, they are considerably worse than garments made of:; oily or cellulose fibers. Warning or signal colors for dyeing cellulose fibers or wool are unfortunately not known.

To the high visibility clothing made of polyester fibers in terms of physiological To improve properties, it is known to make the fabric from two layers, which are intimately interwoven. The outer layer of clothing is made made of pure polyester fiber and the layer underneath towards the body is made of pure cellulose fiber or

Wool or a mixture of threads made of at least 35% cellulose fibers or wool and 65% polyester woven. The lower layer of z. B. Construction wool ensures comfortable wearing of clothing, wilrenu the upper outer layer made of polyester is used to absorb the warning or signal color, thus made of cellulose fibers or wool existing layer that z. B. absorbs perspiration from the body, the water is directed to the outside to evaporate, this must made of cellulose fibers or wool intimately with the outer layer Polyester layer are woven. It is not enough if both layers are separate There are tissues that are only sewn on top of each other.

The intimate interweaving of the two layers has the disadvantage that something of the cellulose fibers or the wool is still on the outer side of the garment you can see. The surface visible from the outside consists of about 80% to 97% Polyester and 3% to 20% cellulose fibers or wool.

Because the cellulose fiber or wool does not have warning or signal colors is to be dyed, reduces the amount of cotton that shines through on the ule surface or wool is the luminosity of the surface colored with warning or signal color clothing.

It has been found that the physiologically very easy to wear two-layer clothing not that in terms of luminosity Requirements achieved by the employers' liability insurance association for safety reasons are prescribed.

There are colors that meet the requirements when new, However, these colors age too quickly and they change when they are worn or exposed to light and because of the boiling during washing, their luminosity and also the color location are too strong or the color.

It is the object of the invention, one in the luminosity, in the color locus and better color in terms of aging properties for the two-layer woven textiles in which the surface lying on the garment is predominantly caterpillar Part consisting of polyester appears visible and the inner surface, completely or partially woven from cellulose or wool, in particular the an the portion of cellulose fibers that later shimmers through on the garment or wool does not reduce the luminosity as much as it does with known ones Colors is the case and with the beiia wascixen and longer wearing or exposure a high luminosity and a favorable hue or color location is maintained.

All the conditions described in D 30711 Part II should be met become what none of the previously known colors could.

This task is carried out in the characterizing part of the claim 1 described color mixture together with the weave met. further training of the Invention are contained in the characterizing parts of subclaims 2 to 5.

An exemplary embodiment of the invention is described below.

An orange-red coloring for high-visibility clothing, such as those used in B. is prescribed for road construction workers and meets all requirements of DIN 30711 Part II in terms of luminosity, light resistance and hue is met as follows produced: dyeing is carried out with an aqueous liquor in a liquor ratio of 1:20 for 4 minutes at a temperature of 180 ° C. flit 1.5% Color Index No. Disperse Yellow 21b = Dye No. 4). 2% Color Index No. Vat Red 41 = dye No. 3 0.52% Color Index no. Disperse Red 277 = dye no.

It is then cleaned reductively.

A color tone is achieved that has a chromaticity point of x 0.5796 and y 0.361 and thus complies with DIN 30711 Part II.

It becomes a commercial dye of the type colors described above No. 2, 3 and 4 related. The percentages relate to the weight of the goods.

4 The two-layer fabric is Atlas chain type: 100 a polyester - 43 threads / cm 250 dtex x 2 weft: 50/50 polyester / cotton 22 threads / cm 417 dtex While with the known colors by exposure the hue changes very strongly, surprisingly remains the same as described The color of the hue has been preserved very well even after exposure, which may also be related to the fact that the fibers do not have so much radiation energy due to the color mixing absorb and do not get as hot as fibers dyed with conventional paints.

Even after a longer exposure it still becomes the part in DIN 30711 II required color tone and luminance factor of 0.40 <ß <0.60 also achieved the prescribed color location.

From the Ty colors lir. 1 to 4 can also be used for other warning or signal colors mix as they z. B. used for the clothing of school beginners.

The color mixing described above can of course also be used Can be used very well for dyeing pure threads or fabrics made of polyester. That Coloring can be done with the most common known coloring methods.

Claims (5)

PATENT CLAIM 1. warning or signal color and woven or active fabrics provided with this, characterized in that a color mixture is produced in which the type colors described below are contained to over 90% and 3 or 4 of the type colors are mixed with one another, the type color No. 1 a yellow of the formula and composition where R1 and R2C1 - C4-alkyl or phenyl-C1 - C3-alkyl and R3 and R4 are hydrogen, R1 and R2 together are a radical of the formula - (cH2) 2 - Z - (CH2) 2 -R1 with R4 can form a radical of the formula - (CH2) 2 -, - (CH2) 3 - or -C (CH3) 2 - CH2 - CH (CH3) - and R2 with R3 can form a radical of the formula - (CH2) 3 - , where Z stands for 0, NH, N-CH3, CH2 or a direct bond and A stands for a radical of the benzoxazole, benzimidazole, benzthiazole, quinazolone or thiadiazole series, and the type color no. 2 is a red of the formula is, in which R1, R2, R3 and R4 have the abovementioned meaning, R5 and R6 represent hydrogen, chlorine, C1 -C 4 -alkyl or C1 -C2 -alkoxy, X stand for NH or 0 and Y for CN or CONH2 and type color Number 3 a formula red and type color No. 4 is a yellow of the formula where w is C1 - C2 alkyl and - -T is C1 - C4 alkoxy, phenyl or substituted C1 - C6 alkyl, and the fabric consists of a two-layer weave or consists of a double weave, one of which is later in the finished Clothing surface visible on the outside predominantly made of at least 80% polyester appears visible and the other area that will later be on the inside of the garment consists of at least 35% cellulose fibers or wool, both layers with one another are interwoven and the warp is made from a thread with 100 u polyester and the weft a thread made of cellulose fibers, wool or at least 35% mixture of these Materials with a maximum of 5% polyester, whereby for the composition the reverse of warp and weft also applies. 2. Warning or signal color and initiation of this provided fabric according to requirements 1 characterized in that the type colors No. 2, 3 and 4 are mixed together are. 3. warning or signal color and provided with this woven fabric according to claim 1 characterized in that the type colors No. 1, 2, 3 and 4 are mixed together are. 4. warning or signal color and provided with this fabric according to claim 1 characterized in that the type colors 1, 2, 3 are mixed together. 5. warning or signal color and woven or active substance provided with this according to claims 1 to 4, characterized in that in the later clothing The thread that appears on the outside consists of 80% to 100% polyester.