DE1814014A1 - Polyester-cotton fabrics with a permanently pleated - Google Patents

Abstract

Textile fabric with durable plates has warp and weft yarns consisting of a mixt. of synthetic polyester fibres and natural cellulosic fibres, the yarns in one direction being treated with a durable pleat-imparting resin, while the yarns in the other direction are not treated with this resin. The yarns pref. consist of a mixture of cotton and polyethylene terephthalate. The resin pref. consists of dimethyloldihydroxyethyeneurea. The fabris have a durable permanent pleating effect, which is resistant to washing and dry cleaning, after the resin is cured. The fabrics are also intrinsically more durable than previous fabrics with a permanent pleating effect, and in particular have an increased resistance to abrasion.

Description

Textile goods and their manufacture The invention relates to textile goods, in particular a method for the production of permanent hanger textile articles.

U.S. Patent 2,974,432 describes a method of manufacture of clothes of different sizes and types, which are also used in numerous and remain wrinkle-free after repeated washing treatments. Keep these clothes all folds and @@ issees introduced during their manufacture are required to achieve presentable, attractive and good-looking clothing, none Ironing treatment.

Textile articles with these permanent ironing properties (hereinafter also Called non-iron properties) are now on the market. You will be from Camouflages are formed which contain a cellulone component, e.g. B. cotton. Such Non-iron shirts may not require ironing after washing, what reduces the housewife's daily workload. But despite their desired Features do not satisfy these items in Yielen pills as they are when worn less durable than untreated (not non-iron) articles of the same general Are kind. They are particularly sensitive to abrasion and wear when worn normally relatively quickly. The reason for this is to promote degradation of the cellulose component in the yarns that make up the articles, sometimes also referred to as textile resins, chemical agents have been ascribed to the general development of the non-iron properties are used in the goods. To make it more permanent Article a number of methods have been suggested. The application is one of them of the textile resin on only one side of the fabric, so that the cellulose component is preferred is covered on this page. Other methods too, such as the use of textile resin when treating the goods in smaller quantities, have been tried. Despite the continued research efforts to determine the durability of these goods improve, none of these methods have been entirely satisfactory. Either will the durability with a corresponding reduction in the gel-free properties or the non-iron properties with a corresponding reduction in the Improved durability.

The present invention provides a method of making a Durable, non-iron textile article available that consists of a textile product or a textile @@ off is formed, which is made of warp and weft yarns a mixture of polyester synthetic fiber and cellulose natural fiber is made, whereby one produces two yarns from the polyester and cellulose fibers, one of the Yarns treated with a textile resin, which gives a textile article non-iron properties able to give while the other yarn is left untreated, using the treated yarn in one direction and the untreated yarn in the other direction manufactures a product, creates a textile item from the product, irons the item or presses and then the textile resin hardens. There can be warp or the weft yarn be treated with the textile resin. A yarn made from a mixture of Cotton and polyethylene terephthalate fiber are a preventive yarn The preferred textile resin is dimethyloldihydroxyethylene urea.

The terms "textile resin" and "resin" are used here in their meaning used in the clothing sector and not to be understood in its classic sense. So is a cyclic urea that with Cellulose under formation reacts to a networked structure and actually not a resin in the classic sense represents, quite a Hars in the sense of the meaning used here. This need Nor is the term intended to imply that one is looking at the surface of a fiber could not apply a large number of monomers and polymerize on it, but this meaning is also within the scope of the invention.

The in the examples to determine the abrasion resistance of The Wyzenbeck test applied to the goods corresponds to that in "ASTM Standards", 1958, Part 10, 8. 436 (Oscillatory Cylinder Method "D1175-55-t) described with the below mentioned reductions. The Wyzenbeck tester (also called "Wyco Precision Wear Text Meter "is commercially available from Wyco Tool Company Lab-E-Vator Division, Des Plaines, Ill., V.St.A., Available. When examining a piece The goods were rubbed back and forth with an abrasive cloth, whereby the number of to Formation of a hole (localized warp and weft yarn breakage) required cycles are determined. The standard test is modified as follows: 1. Use of 320J aluminum oxide cloth (available from Behr-Manning Company, Troy, New York, V.St.A.) in place of O-emery paper as an abrasive.

2. Arrangement of two aluminum rods, each extending over the length of the drum 6.35 mm in diameter under the abrasive on the drum surface, where the two bulges formed by the rods localize the change and one sudden increase in tension and strong bending in the sample during each cycle result.

3. Conditioning of the sample in the laboratory for at least 24 hours at 24 + 20 C and 55 + 2 s relative Peuohte before the test.

The weight loss or attrition ("Accelerotor Weight Loss") is with a test device of the type "AATCC Accelerotor" (available from the Atlas Electrical Devices C @ mpany, Chicago, Ill., V.

St.A.) according to the method of H.W. Steigler et al., "American Dyestuff Reporter ', Sept. 10, 1956, with the sample from a circulating 11.5 cm wing organs in the abrasive-lined cylinder of the testing device is circulated. The samples to be assessed are cut into sections of 29 cm2, separates or frays each sample to approximately 3.2 mm from the edge, carries on the Frayed edge to prevent further separation one with methyl ethyl ketone "Unabond Cement No. 551" diluted putty available from Union Bay Chemical Company, 491 @ain Street, Cambridge, Mass., V.St.A.) and conditions the sample before the test at least 2 hours at 54.5 # 10 ° C and at least 16 hours at 210 C and 65% relative light. The "400-E Closkote 'Durite'" is used as an abrasive (available from T. C. Ulmer Company, Philadelphia, Pa., V.St.A.) in the form of 6.95 x 43.6 om strips, taking each abrasive liner with the face outwards into a collar, over the overlapping ends an approx. 10 cm long piece of cellular glass tape and the tape ends over the outside of the waistband attached. The samples are weighed to the nearest milligram and the collar is placed in the test chamber a, crumples the sample and places it in the chamber right in the path of the Wing organ. The weight loss of the goods will be after 1, 3 and 5 minutes of abrasion recorded as a percentage of original weight.

The edge chafing, the chafing along the fold of a commodity, is carried out with the above test device according to the working method according to Anthony R. Markezich, "American-Dyestuff Reporter ", Nov. 21, 1966, with the sample again from a circulating 11.5 cm wing organ is circulated in the cylinder lined with abrasive. From samples of 7.6 x 15.2 cm by folding and folding, squares of 7.6 cm side length, pressed (5 sec.

Water vapor / 10 sec. Exposure to heat / 5 sec. Vacuum) and hardens 10 Min. At 1600 C. The soaked cattle are treated with the above, with methyl ethyl teton diluted putty sealed.

6.35 mm from the bovine of the three open sides is one Seam made. Conditioning the sample before testing, the abrasive and its arrangement and duration of scrubbing correspond to the description above Determination of weight loss. The sample is in the chamber right in the way of the wing organ entered. The sutures are then removed and the unfolded, scrub samples on a light box and compare with one photographic standard. A rating of 10 means undamaged and 1.0 badly chafed.

The term “polyester fiber” as used here is defined in "The 1960 Supplement to Book of ASTM Standards", Part 10, 8. 53. Preferred polyester fibers are fibers made of polyethylene terephthalate and be @ en Mixed polymers.

The preferred procedure for the production of non-iron textile articles, briefly summarized from the impregnation of a textile product with a textile resin, Drying, cutting, sewing, pressing and finally hardening of the resin (effect a dislocation of the cellulose molecules) is generally known.

This leads to excessive wear and tear on non-iron textile articles Driving sensitivity to abrasion is known to be a result of the networking of the Cellulose MolectQe. Thus, when carrying out a lower degree of networking, see chap. B. only half of the cellulose molecules, the abrasion sensitivity is considerable decrease. In contrast, however, are the non-iron properties of the ready-made adhesive mainly the result of the same crosslinking of the cellulose molecules, and with it If only part of the cellulose is treated in this way, there should be a reduction the desired non-iron properties of the goods can be expected.

It has now been found that in the manufacture of non-iron goods from mixtures of polyester staple fiber and cotton, the goods as expected is less sensitive to abrasion if only those used in one direction of the fabric Yarns, e.g. The weft yarns, are resin treated and the other yarns, e.g. Chain yarns, unaffected by resin. Surprisingly, however, the Goods equivalent to conventional goods in terms of their non-porous properties, where the cellulose components of all these forming yarns are treated with the resin, as with the conventional packing or immersion treatment of the entire product in one Resin bath.

This behavior is particularly surprising in that the treatment only some of the yarns, e.g. the weft yarns, in 100% cotton Were a detrimental effect on the non-iron properties of the finished product has brought about.

The invention is now based on the preferred crosslinking resin but other resins may work equally well.

The preferred resin combination for the purposes of the invention is from one of the conventional latent hardening resin systems in the form of an aqueous mixture of 1. 25% by weight textile resin in the form of dimethyloldihydroxyethylene urea (cyclic Molecular structure), 2. 5% by weight zinc nitrate solution (40% zinc nitrate in water) for Catalysis of the reaction and 3. 0.25% by weight of wetting agents, such as octylphenoxypolyethoxyethanol, educated.

The dimethyloldihydroxyethylene urea is commercially available as "Permafresh 183 "(Warwick Chemical Company). The zinc nitrate is located at called "Catalyst X-4", also a product of Warwick Chemical Company, in trade, and the wetting agent is called "Triton X-100" the Rohm and Haas available. The preferred combination is well known and in the "Koratron Pabric Pinishing Manual ", 1961, Koratron Company, Inc.

According to the invention, the resin system is applied to the cellulose fiber in Applied only to the yarns of one direction of fabric. So you can only do it the warp yarn or, preferably, especially when the warp yarn predominates in the Wear on the surface of the goods most exposed to abrasion, exclusively apply to the weft yarn.

If the resin system is only to be applied to the weft yarns of the goods, can be applied conveniently in one of the conventional finishing or finishing stages, as on the cross or weft winder. Further, result in convenient application methods.

Goods manufactured in accordance with the invention are @ bow tie-free and possess exceptional resistance to abrasion when worn. You own accordingly, not only with the textile articles that have already been produced non-iron, such as shirts and pants, but also other items that were previously due the heavy use that occurs with them, the advantage of non-iron properties failed.

EXAMPLE 1 This example illustrates the manufacture of a Goods according to the invention and gives a comparison of their abrasion resistance a product of the state of the art.

Made of 8/1 yarns (Cotton Count) from a mixture of 65% by weight of polyethylene terephthalate staple fiber and 35% by weight of cotton, a 3 x 1 linka twill denim test fabric (with, on the chair, 28 warp and 12.5 weft threads / cm), whereby the one to be used in the weft Yarn through a textile resin bath in the form of the before weaving above, preferred Mix with the preferred weight combination and place the yarn on a sizing machine dries at about 104 ° C.

The control ware will be changed in the same way as the above test goods produced that the weft yarn does not require any special treatment with tiem textile resin, but after weaving the entire product in one Bath of the same type as when impregnating the weft yarn of the test goods on a Wet absorption of 73% is padded, whereupon the goods are trooknet at about 104 ° C.

Samples of each product are pressed in the conventional way - (5 sec.

Water vapor, 10 seconds exposure to heat, 5 seconds vacuum at 1600 C), cured for 10 min. At 1600 ¢ and then five times in Washed conventionally in 600 0 water. Every sample will tested for weight loss and abrasion resistance. Results: T a b e l l e I Test goods Control goods Weight loss,% by weight, after 1/3/5 min. 2.4 / 5.5 / 8.1 7/8 / 11.3 Abrasion resistance, bars 201 153 The preservation of the non-iron properties (after washing) both samples is equivalent. The one produced according to the invention However, as the table shows, the sample (test product) results from abrasion a much higher durability than the control sample.

Example 2 This example shows that made entirely of cotton Manufactured goods do not respond favorably to the method according to the invention.

There are two denim goods in each case in Example 1 for the test goods described manner.

The first product is made with, on the chair, 30 warp and 15.5 weft threads / cm from a yarn made from a mixture of 50% by weight of polyethylene terephthalate and 50% by weight Cotton made in a basis weight of 400 g / m2.

The second commodity corresponds to the first with the modification that in the Yarn no polyethylene terephthalate is used, and has, on the chair, 29.5 Warp and 16.5 weft threads and has a basis weight of 392 g / m2.

Each product is tested for abrasion sensitivity as in Example 1, however, only looking at the appearance of the goods when testing for weight loss 5 minutes of abrasion stress determined.

Results: T a b e l l e II First goods Second goods (100% cotton) Edge abrasion +) 10 5 Abrasion resistance, cycles 269 186 +) Evaluation 10 = none Signs of abrasion (1 = severe damage) 5 = moderate damage The polyester-cotton goods is therefore, as expected, less sensitive to abrasion than cotton goods. The only in Cotton goods treated with textile resin in the weft direction are less sensitive to abrasion than a conventionally treated one. However, when both goods are washed and on theirs Non-iron properties are assessed, the former is non-iron while the latter has lost its iron-free properties as a major oil.

Claims (6)

Claims 1. Non-iron textiles with warp and weft yarns from a mixture of polyester synthetic fiber and cellulose natural fiber and with through a treatment with Textilhar @ introduced non-iron properties au bit the ears treated Yarns that make up one direction of goods and untreated yarns the yarns of the other Direction of goods forming yarn. 2. Goods according to claim 1, characterized in that the warp yarns are treated with the resin. 3. Goods according to claim 1, characterized in that the weft yarns with which hars are treated. 4. Goods according to one or more of claims 1 to 3, characterized in that that the yarn is made from a mixture of cotton and Folyäthylenter @ phthalat will. 5. Goods according to one or more of claims 1 to 4, characterized in that that the textile resin is formed from dimethyloldihydroxyethylene urea. 6. Process for the production of the durable, non-iron textile articles according to claim 1 to 5, characterized in that a) from the polyester and Cellulose fiber produces two yarns, b) one of the yarns bit a textile resin that is able to impart non-iron properties to a textile article, treated while the other is left untreated, o) from the yarn using the treated one Yarn in one direction of goods and the untreated yarn in the other are goods produces, d) produces a textile article from the goods, e) irons the article or pressy and f) the textile resin hardens.