LT4344B - Process for the production of knitted fabric imitating chamois or velvet - Google Patents

Abstract

Inventions presents production method of downy surface knitted fabric imitating chamois or velvet. The production method improves organoleptic and exploitation properties of the fabric. The method for underlay uses polyester or polyamide yarn and for downy surface - multithread polyester or polyamide yarn that has an elementary linear density of 0.1-0.17 teks. Before dyeing the material is being teased, polished and stabilised.

Description

The present invention relates to a method of treating textile materials, more particularly to a method of obtaining a knitted fabric with a fluffy surface that mimics suede and velvet.

Known method for making fluffy fabric (see Japanese Application No. 6323309, May 15, 1988), wherein warp yarns of almost all types of fibers having a shrinkage coefficient of 5 to 40 /, and weft of two types of fibers are used for warping. thickness 0.08 tex. The woven fabric is heat treated, washed, dyed and then spun.

The fabric obtained in a known manner is not soft enough, the spun-derived fluff quickly wears down, which degrades the fabric's performance.

The closest known method is to obtain a knitted fabric type of velvet or suede (see LTI Report, 01.01.1986, Reg. No. 007558), in which the material is based on non-elastic polyamide 2,2 tex. yarns, while using complex triacetate 8.4 or 16.6 tex to form the fluff. yarns with a linear density of the filaments of 0,28 and 0,237 respectively. The knitted material is relaxed in a steam-tumble dryer at 130 ° C, boiled and dyed in a ball at 80-105 ° C, then dried, broiled, steamed at 130 ° C, sheared and stabilized at 180 ° C.

The material obtained in a known manner does not exhibit high organoleptic properties, fluff dries rapidly, and is not stable.

The object of the present invention is to improve the organoleptic properties of the material, to obtain a soft, good performance suede and velvet imitation surface.

This object is achieved by releasing, dyeing, drying, then combing, stabbing and stabilizing the knitted fabric in a known method of making a knitwear type of chamois or velvet using a non-elastic polyamide filament and a complex triacetate filament as the basis for the fabric. the dyeing material is brushed, sanded, and stabilized.

The material is based on polyester filament yarns, and the pile coating is made of polyester filament yarns with a linear filament density of 0.1-0.17.

The material is based on polyamide yarns, and the pile is made of polyamide filament yarns with a linear filament density of 0.1-0.17.

The following examples illustrate the method:

An example

The material is knitted from polyester yarn 5.6 tex. , uses a polyester multifilament yarn with a linear density of 0.11 tex for its filament coating. It then relaxes the material at 140 ° C by passing through the vapor and is fed in a spinner. The material is sanded on the MH-1800 sander, passing the material through the grinding rollers at a speed of 8 m / min. The polished material is stabilized at 200-210 ° C in a t ° vapor environment by passing through a drying machine. Subsequently, the material is dyed with a spray-dispersion paint of 120-130 ° C t °, dried and treated with a special finish. For example, 1 ² -1 ^{3 4} (see table) processing takes place as e.g.

I, for pile cover only, uses threads in the textures listed in the table.

An example

The material is knitted from polyamide 2.2 tex. uses a polyamide filament tow with a linear density of 0,135 filaments for filament yarns.

Further processing takes place as e.g. I, only the polished material is stabilized at 190 ° C by t ° and uses acid dyes for dyeing. For example, 2 ¹ (see table) uses threads with the text shown in the table for pile coverings.

Example (prototype)

The material is knit with polyamide to support the substrate. yarn, and complex triacetate filaments for pile forming 8.4 tex with a linear filament density of 0.28 tex. The knitted material is relaxed in a steam environment at 130 ° C, boiled at 60 ° C and dyed at 80-105 ° C, then dried at 130 ° C, sucked in a spinner, and again evaporated at 130 ° C, sheared and stabilizes at 180 ° C t °. In Example 3 ¹ (see table), the text in the table is used. thread.

The softness of the material is organoleptically determined, using a 10-point scale for clarity (the softness is directly proportional to the size of the score).

The degree of peeling is determined visually after 5 washes, using a 5-point scale for clarity (the degree of peeling is inversely proportional to the score).

Resistance to felting is determined in accordance with GOST 12739-85 by assessing the loss of lint mass after successive rounds of roving.

The qualitative properties of the treated material are shown in the table, which shows that the material obtained in the claimed manner is considerably softer than the known material, and the resulting fluff is significantly more resistant to filing and peeling, which improves the organoeptic and physico-mechanical properties.

An essential distinguishing feature of the claimed process is the sequence of the claimed operations and the use of polyamide or polyester filament yarns with a linear density within the specified limits for forming the fluff. The pre-dyeing and grinding of the material, as well as the use of polyester or polyamide multifilament yarns for the pile coating, provide a good quality pile surface with specific pile properties. In the prior art, the use of triacetate yarns to raise and break pile coatings is used to form a down coat, which in turn allows them to be cut further, whereas the polyamide or polyester yarns used in the proposed method are considerably stronger, only peelable but uninterrupted. evenly clipped. After passing through such ruffled material, the eyelets are evenly disrupted through the grinding shafts to form a dense, uniform-height pile with a specific appearance that is different from that of the pile. Because pile yarns use multi-stranded polyester or polyamide filaments with a linear density of 0.1-0.17 tex, the filament produces a large amount of these filaments, forming a dense and considerably softer pile surface. When dyeing a ruffled material, the fluff is unfolded chaotically in all directions, giving the surface of the material the appearance of a chamois, and the resulting fluff is significantly more stable and peeling-resistant.

The state of the statement is optimal. As can be seen from the table, using a multi-strand polyester or polyamide filament yarns within the specified linear densities results in a sufficiently robust filing fluff with a low degree of peeling and a higher softness of the material compared to the prior art.

Thus, the material obtained by the method provided has a soft, suede or velvet that resembles a pile surface which is resistant to felting and peeling.

table

Serial No. The composition of the thread Offers Complex Softness, Resistance Peeling basically, of elementary filaments linear density, for dildos, after 5 washes text. text. Apr cycles Apr 1 PE5.6 PE 0.11 10th 310 5 P PE5.6 PE 0.15 9th 310 5 P PE 5.6 PE 0.16 9th 310 5 14th PE 5.6 PE 0.17 9th 310 5 2 PA 2.2 PA 0.13 10th 280 4 2 ¹ PA 2.2 PA 0.15 9th 290 4 3 PA 2.2 TR, 0.28 7th 180 2 31st PA 2.2 TR 0.237 6th 250 3

Claims (3)

1. A method of making a knitted fabric having a matting or velvet pattern, using non-elastic polyamide yarns as the base material and complex triacetate yarns for covering the fabric, relaxing, ball-dyeing, drying, then combing, shearing and stabilizing. in that the material is punched, sanded and stabilized before painting. 2. A method of producing a knitted fabric with a pile surface, mimicking a chamois or velvet, as claimed in claim 1, wherein said material is based on polyester yarns and said pile fabric is made of polyester filament yarn having a linear density of 0.1-0.17. 3. A method of producing a knitted fabric with a pile surface simulating a suede or velvet according to claim 2, characterized in that the material is based on polyamide yarns and the pile fabric is made of polyamide filament yarns having a linear density of 0.1-0.17.