DE1190149B - Process for the production of a colored fiberglass yarn - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY GERMAN JfflTW! · PATENT OFFICE

EDITORIAL

i190149 Int. CI .:

C03c

Number:
File number:
Registration date:
Display day:

D06p

German class: 32 b - 25/02

1190 149
O7250IVc / 32b
February 22, 1960
April 1, 1965

In many respects, glass fibers or threads form an ideal material for textile products such as clothing, decorative fabrics, curtains and the like. Some Advantages of such products made of fiberglass are that they are not ironed will need, non-flammable and resistant to dirt and stains as well as safe against rot and mold stains are. The finishes for fabrics made of glass are already so well developed that Today, fiberglass products have good workmanship, are soft on the drape and are easy to wash and can be straightened up by themselves if they are carried continuously.

In order to achieve some of these desirable properties, the product is made after weaving exposed to intense heat of around 650 ° C or more to soften and relax the yarn and to give it a permanent consistency for weaving. Such products are therefore permanent crease-proof.

In order to develop deep, even hues, they normally had to be used for fiberglass products used colors of organic origin. Because organic colors change at elevated temperatures decompose, the glass fibers either had to be dyed in one color or printed after weaving because there has never been a best practice to dye and dyed continuous yarn Manufacture yarns to withstand excessive temperatures on the order of 650 ° C can. The fashionable adaptability that can be achieved in this way for those made from fiberglass yarns Products was therefore to the coloring of a standard piece or the printing of these products limited.

It is already known that the actual glass fibers are colored by the inclusion of a corresponding one Dye in the starting material from which the glass fibers are drawn. A method is also known in which the glass fibers are provided with a coating layer for example a coating of a synthetic resin containing the dye.

The main object of the invention is to provide a dyed fiberglass or thread yarn which is made from Woven products made for him have a greater range of fashionable adaptability than previously possible confers.

The aim is to create a glass yarn with a good color tone and excellent lightfastness distributed through the entire yarn, which can resist temperatures of approximately 650 ° C. for the production of a dyed one
Fiberglass yarn

Applicant:

Owens-Corning Fiberglas Corporation,

Toledo, Ohio (V. St. A.)

Representative:

Dipl.-Ing. R. H. Bahr

and Dipl.-Phys. E. Betzier, patent attorneys,

Herne, Freiligrathstr. 19th

Named as inventor:

Remus F. Caroselli,

Roland K. Gagnon, Cumberland, R. I.

(V. St. A.)

Claimed priority:

V. St. v. America dated February 24, 1959 (794 858)

stable and for weaving into those products that are used to strengthen the fabric and for Recovery of the yarn even successively exposed to elevated temperatures is suitable.

The inventive method consists in that one consists of endless glass fibers Passes yarn through a zone of turbulent air flow and then loosens the yarn with a Suspension of a finely divided inorganic dye in water or a volatile organic dye Liquid, which may also contain a small amount of an organic thickener, is impregnated and then dries through a heat treatment.

example

A single yarn composed of continuous glass threads is passed through a radial, a turbulent zone around the yarn forming air flow frayed out (cf. US patent 2783 609). The loosened yarn thus formed becomes in and through an aqueous dye bath of one finely divided, dispersed, inorganic dye passed. The yarn is well saturated and the dye is also entrapped in the yarn as absorbed on the surface of the glass threads. That treated Yarn is then passed through between opposing elastic rollers

509 537/175

Claims (1)

3 4 the excess dye bath solution removed and the same - it has been found that for the production of a Early dye solution from the loosened yarn to a pH value in the order of 8 to 8.5 or taken and evenly distributed over this. slightly higher the addition of ammonia is necessary, The dye bath used has the following composition to aid the dispersion of the dye. Settlement: 210 g of a 75% dispersion of Cad- 5 Other a somewhat more viscous bath of lower solid sulfide dyestuff in water to 3055 g of substance concentration enabling organic water is added and thoroughly dispersed therein. mixes can be used in the same way; The dye is in the form of a paste, which 75% is the only criterion only in the eventual finely divided, ground cadmium sulfide in a high temperature treatment of the yarn aqueous dispersion containing a nonionic io absorbed amount of organic material. These Surfactant, a dispersing agent, is kept low to prevent ignition of the and a preservative is added. organic matter during the treatment of the The dye was made by calcining the raw dyed yarn in an oven at a temperature of materials at high temperature and grinding of 650 ° C and thus a dissolving of the glass house resulting product prepared so that 15 to prevent fibrous form. Also in this fabrialle its particles pass through a sieve with a mesh size of 0.044 mm and a high content of organic matter. The yarn becomes continuous with rial to an incomplete combustion a speed of about 67 m per minute based discoloration. through the dye bath and then in an oven with an aqueous dye bath Temperature of about 315 ° C led. The finished yarn, also with in volatile, organic liquids, dried yarn has a uniform, deeply- like petroleum or aromatic solvents, yellow hue, which colored during the finely divided, inorganic color bodies that now follow Treatment will not be rubbed off or drained off. Usually one uses for the paint can. The yarn is then mixed with one or more 5 to 15 percent by weight of the inorganic rere different colored yarns woven to make 25 dyestuff in dispersion in a solvent such as to achieve a certain design, which makes toluene. Any dispersion compatible with the solvent New designs and multicolor effects can be used to improve the dispersion of the let it last. Color bodies are used. Such a solution-the tissue is then carried out by one with a means-systems that allow the formation of toxic ones Temperature of about 650 ° C working exhaust vapors and increase the fire hazard, but are setting furnace led. The oven temperature softens and affects drying of the treated yarn relaxes the glass yarn, gives it a lasting benefit. Crimp and finally straighten the fabric. This The tempera treatment maintained while drying gives glass fiber products a door that depends on the yarn throughput speed good crease resistance. In the oven, the evaporated 35 and the length of the yarn path through the oven evaporated residues in the dyed yarn. Although the example given above is 67 m per minute and the dye itself is given to a certain extent, can be both higher as well Degree melted on the threads. The lower speeds with equally good success The color used above has a metal depending on the percentage of absorbed Basis that their color during the 40 nem dye and the subsequent heating working temperature maintains. conditions are applied. When applying the invention, the minimum requirements and physical ceramic-like dyes from complex inorganic properties of the according to the invention chemical compounds such as iron, chromium, zinc, cobalt, yarns produced according to processes Copper, aluminum, cadmium and selenium as special fabrics are at least those of the piece-wise proved valuable. These dyes can be dyed fiberglass fabrics alike. aside from that as is known, for example, by intimate mixing, the process according to the invention has a vitrifiable base with compounds such as manufactured yarns have excellent lightfastness. Cadmium sulfide selenide red and subsequent calcium kidneys are produced at high temperatures. 50 claim: After calcining, the ceramic, using a process for making a colored glass Color fused frits ground in such a way, fiber yarn, which against temperatures of undassed all grains a sieve with 0.044 mm mesh size is resistant to about 650 ° C, thereby happen. The result is a fine, warmth and marked that one from endless light-resistant, non-smearing yarn or yarn consisting of 55 glass fibers through a zone running powder, which directs its color during the turbulent air flow and the work-up not changed. then loosened the yarn with a suspension of a dye in water Dye bath can give him small amounts of an organic or a volatile organic liquid see thickener being added. It also has a small amount of organic insurance z. B. show that you can contain for the production of a thickener, impregnated and somewhat viscous dye bath in which the organic then dries through a heat treatment. provide color bodies in perfect dispersion. lying, the dye bath 0.2 percent by weight of a poly- Considered publications: add high molecular weight carboxylic acid 65 British Patent No. 721,858; can. When using this thickener American Dyestuff Reporter, 1957, p P195 to 198th 509 537/175 3.65 © Bundesdruckerei Berlin