DE2902905A1 - METHOD FOR PRODUCING COLORED PATTERNED SAFETY BELT TAPES FOR AUTOMOTIVE, AIRPLANES OR THE LIKE. - Google Patents

Description

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Process for the production of brightly colored patterned seat belt straps for automobiles, Airplanes or the like.

A k ζ ο GmbH Wuppertal

The invention relates to a method for producing brightly colored patterned seat belt straps for automobiles, Airplanes or the like.

Seat belts are usually made in one color, with the achromatic colors black or gray predominating. In these achromatic colors are already spun-dyed synthetic yarns available to the belt manufacturer, i.e. synthetic, usually melt-spun yarns which contain colored pigments that either melt them or have already been added during the polycondensation or polymerization. Also stand for belt production raw white yarns available.

It is known to interweave spinning black with raw white yarns together to form seat belts. By using different Bindings and / or color sequences can be used here

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achieve interesting patterns. The raw white can be retained - then a pattern is created in the achromatic Colors black and white - or the raw white yarn is dyed when the piece of webbing is dyed - then it is created a pattern in the achromatic color black and a bright color, e.g. in red.

It is also known that two types of raw white yarn are different Use color affinity for belt production and then dye one or both types of yarn. Here patterns arise in the achromatic color white and in one bright color, e.g. in red, or in two bright colors, e.g. in red and blue. From a dyeing point of view, however, this process is only possible (a) when using two differently colored Yarn types of the same material type (previously unknown for high-tenacity technical yarns) or (b) when used two types of yarn of different types of material, e.g. polyamide and polyester. Here, however, the following technical problems exist: The various types of material have As raw white yarns, they already have different yarn characteristics that are not adjusted to one another during the dyeing process can be. There are also material-related, different dyeing conditions. Both factors lead to different things Shrinkage and expansion behavior. Furthermore, it cannot be avoided that the dye is used for a yarn component is also easily accepted by the respective other yarn component to different degrees. This results, that a target color is very difficult or not at all

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is to be set. Another disadvantage is that the for Determination of a certain elongation characteristic of the belt strap required heat-setting of the belt such Differences in the shrinkage and elongation behavior of the feed yarns to a different load on the warp threads in the Belt, which is noticeable in a disadvantageous deterioration in the tensile strength values of the belt " Furthermore, yarns with different shrinkage or elongation behavior lead to waviness in the webbing and thus to it poor abrasion behavior.

When producing brightly colored patterned seat belt straps according to the methods described above, this arises there is also the problem of Reprodu ™ for a number of colors decorativeness of the coloring.

Today you want the color and / or the pattern of a car seat belt, for example, on the body or the upholstery of the car, apart from the color-limited options listed above, there are only the following options Procedure available. You can weave a seat belt in raw white and then print it in color. This procedure is very costly, but most importantly it does not provide what is required when wearing the belt Color fastness (i.e. light fastness "rub fastness and perspiration fastness). On the other hand, one can fall back on yarns which, according to their production, are in the most varied Colors have been dyed, so-called yarn-dyed yarns, and through the use of different bright colors -

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if necessary in connection with spun-dyed black or white yarns - produce brightly patterned belt straps, again using different bindings and color sequences. Such yarn-dyed insert yarns are initially once relatively expensive due to manufacturing; the weaver or dyer must also use a variety of colors and hues have in stock (problem of warehousing). Another disadvantage of the latter method is ultimately again the partly unsatisfactory color fastness of the yarn-dyed yarn types.

The invention is based on the object of an individual pattern of seat belts using different bright colors to allow, whereby the achromatic colors black, gray and white for tinting the bright colors (lightening or Darkening) within the framework of known bindings and / or color sequences can also be used. Furthermore, the The reproducibility of the various shades of color and their color fastness are guaranteed and an economically justifiable one Warehousing be granted. Further advantages emerge from the further description.

In solving this problem, the new idea is assumed, with a small number of spun-dyed, more colorful ones Types of yarn, possibly in connection with spun-dyed achromatic yarn types using known weaves and / or color sequences to produce brightly patterned seat belts, whose shades are reproducible and colourfast.

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Accordingly, the object is achieved according to the invention in that the ribbons are made using at least two spun-dyed synthetic yarns of different colors, wherein at least one yarn has a bright color and is woven using weaves known per se.

Under "bright colors" are - in contrast to the achromatic colors, which have neither hue nor saturation, but only have different lightness - understood colors with a certain hue, certain lightness and certain saturation, see for example "Concise Dictionary of Natural Sciences", 2nd edition, vol. 3, Gustav Fischer-Verlag Jena, 1933, pages 979 ff (color theory) and "BROCKHAUS ABC der Optik ", VEB F.A. Brockhaus Verlag, Leipzig 1961, page 244 (color).

In weaving technology, "weaves" are understood to mean the various types of crossing of warp and weft threads, for example the systematically structured basic weaves of plain weave, twill weave and satin weave or the weave derivatives that can be developed from them. Preferably be. Twill weaves used, especially the twill ^ j.

The advantages of using only spun-dyed yarns are as follows: Optimal color uniformity within of the individual colors and consequently also within the belt pattern; optimal color fastness; optimal abrasion resistance

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speed; optimal heat and light resistance; practically knotless warp yarns; absolute reproducibility of certain Color combinations in contrast to yarn-dyed types; Manageable warehousing (cost optimization); Manufacturing different color tones by "mixing" ■ combining different Basic colors via binding and / or color sequence.

"Color sequence" is understood to mean the arrangement of the different colors in relation to one another in the chain. If you use For example, the color red (R) and gold (G), different patterns arise with the same weave, if the color sequence in the chain is R-G-R-G- etc., R-G-G-R-G-G- etc. or R-R-G-G-R-R- etc.

Besides by different ties and / or different Patterns that are possible in color sequences can also be striped across the width of the belt Weave different colors or patterns, for example block stripes (edges in red, center in gold or the like.).

Preferably, differently patterned strips are created across the width of the belt by changing the binding and / or by Change of color sequence woven. The weave can be changed when using: twill weaves simply by changing of the body ridge.

Because of the high tensile strength required for seat belts, syn-

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synthetic yarns, preferably high-tenacity polyester yarns. In particular, these yarns are those made from polyethylene terephthalate with a tear strength of 50 to 90 cN / tex, preferably 60 to 80 cN / tex. Because of the The necessary heat setting of the belts should give the various spun-dyed yarns a uniform level of hot air shrinkage (after 15 min. at 190 ° C.) between 8 and 22%, preferably between 10 and 20%. The elongation at break the yarn should be uniformly preferably between 10 and 15%, in particular between 12 and 14%. Ultimately, the total denier of the spun-dyed yarn should be between 100 and 3000 dtex, preferably between 550 and 1670 dtex, the individual titre being from 5 to 20 dtex can range, but preferably between & · and 15 dtex should lie.

To the advantages achievable with the invention, in particular To be able to take full advantage of the large variety of patterns with little storage, it is advantageous in a company less than eight brightly colored spinning colors, so-called basic colors, to use, one with the other or with the achromatic ones Colors black, gray and / or white combined, usually a sufficient variety in the pattern and / or color tinting.

Only the colors red, green, blue and beige or gold are preferably used as the brightly colored spinning colors. If necessary, it is also useful to add brown.

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The invention is explained with reference to the accompanying drawing. There is - due to the printing - not colored in it, but only in the achromatic colors black and white - in FIGS. 1 to 5 a small selection from the abundance of possibilities depicted, using two colors through different bindings, binding changes and color sequences multicolored manufacture patterned seat belts. Using more than two colors increases the variety of pattern options correspondingly greatly increased.

Fig. 1 shows a fantasy pattern with the weave twill = - *,

with alternating Z and S ridge:

Body ridge (each stepped) Z δ 2 2
2 2 S. δ 2 2
2 2 χ 5 Z Color sequence e.g. black
(Number of threads) red χ 4 x'4
j δ

Fig. 2 shows a belt section in which two colors, for example red and blue, in clear block stripes are separated from each other. The bond is continuous

2
Twill ~, also with alternating Z and S ridge:

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29Ö29Q5

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Body ridge (each stepped) Z S. Z S. Z Color sequence e.g. red
(Number of threads) blue 16
24 80 168 80 16
24

The number and width of the strips can be varied; the colors can also be combined within the stripes, whereby mixed colors (shades) arise.

The structure of the webbing shown in Fig. 3, which

2
again in twill - = with the Z- and S-ridge alternating, is the following:

Body ridge 8th 1
1
L . S. 2
_L 2 8th x8 Z 8th x25 2
2 S. 1
1 8th x36 e.g. black
Red
beige
green χ 36 8th 3
3 x8 8th Staining sequence

The belt shown in Fig. 4 is constructed similarly to that in Fig. 3 (twill ^ j):

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Body ridge

e.g. red

Black beige blue white

Color sequence

8th.

x5

x6 x29 x6

x5

The construction of the webbing shown in Fig. 5 can alternatively take place, for example, according to the following patterns * (Twill ^):

a) alternating twill ridge, each stepped; Color sequence constant:

Body ridge (each discontinued). 1 1 S. 1 1 1 N 1 Color sequence e.g. black '-Y-' -r- ' Red x52 xlOO C. x52 (Number of threads)

b) body ridge constant; Changing color sequence:

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Body ridge (continuous)

Color sequence e.g. black

Red
(Number of threads)

x52 xlOO

x52

With the usual belt widths of approx. 50 mm, the method according to the invention allows, for example, up to 12 adjacent belts Produce strips with different, partly repeating patterns or basic colors. By different distribution of the colors (with two colors, for example 10:90 to 90 j · 10) can be the most varied "Mixing" colors, whereby the achromatic colors white and black are also used for lightening or darkening can be. The color sequence can also be varied as desired, for example from 1/1 to 10/10 (e.g. red - green red - Green or R-R-G-G. *

or R - G - G - R - G - G - etc.). In verse

2 binding with the binding (e.g. twill - *, color sequence black, black - red in the edges, color sequence black - red - red in the middle) interesting patterns can be achieved, whereby the twill ridge can also be changed from stripe to stripe.

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Claims (9)

29028Gb Γ ■ H A3GW31873 DE claims 1. Process for the production of colorfully patterned seat belt straps For automobiles, airplanes or the like., characterized in that the tapes using of at least two spun-dyed synthetic yarns of different colors, at least one yarn being one brightly colored, and woven using weaves known per se. rf 2. The method according to claim 1, characterized in that differently patterned strips across the belt width Change the weave and / or be woven by changing the color sequence. 3. The method according to claim 1 or 2, characterized in that the spun-dyed synthetic yarns are high-strength polyester yarns. 4. The method according to claim 3, characterized in that the polyester yarns consist of polyalkylene terephthalate and have a tear strength of 50 to 90 cN / tex _p, preferably from 60 to 80 cN / tex. 030031/0337 I. Γ Π 2 _ A3GW31873 EN 5. The method according to claim 3 or 4, characterized in that that the polyester yarns have a hot air shrinkage (15 min, 190 C) of 8 to 22%, preferably 10 to 20%, 6. The method according to any one of claims 3 to 5, characterized in that that the polyester yarns have an elongation at break of 10 to 15%, preferably between 12 and 14%. 7. The method according to any one of claims 1 to 6, characterized in that that the synthetic yarns have a total denier of 100 to 3000 dtex, preferably from 550 to 1670 dtex, with a single titer of 5 to 20 dtex, preferably 8 to 15 dtex. 8. The method according to any one of claims 1 to 7, characterized in that that fewer than eight brightly colored spinning colors are used. 9. The method according to claim 8, characterized in that the colors red, green, blue and beige as brightly colored spinning colors or gold can be used, possibly also brown. 030031/0337 I.