HU201366B - Method for finishing textiles of polymester base - Google Patents

Abstract

By the method the polyester based textile is coloured and/or provided with a pattern and/or embossed and/or stiffened by the application of pressure and heating and using colouring and/or pattern producing materials. Coloured polyester and polyester textile for colouring is laid down in layers and a two dimensional pattern is placed between the layers. If required, a three-dimensional pattern is placed on top, with an additional, resilient layer at the bottom. The textile layers are compressed to 2 x 10 power 5 - 40 x 10 power 5, pref 30 x 10 power 5 Pa pressure, heated to 60-180 deg C, pref 160 deg C, for 10-120 pref 30 seconds.

Description

The present invention relates to a process for making and / or dyeing and / or embossing and / or embossing textiles of a polyester material, wherein the fabric to be treated is pressurized by the application of a dye and / or a dyeing agent at the same time as heat transfer.

Basic operations of textile finishing include dyeing and / or patterning textiles.

Dyeing is the finishing operation in the broadest sense of the term dyeing all or part of a textile material. The dyeing process depends primarily on the fiber material being dyed. So are cotton, wool, silk, polyamide, polyester and so on. coloring.

Different equipment is used at different stages of production to dye and chemical treat textiles.

Prior art dyeing processes dye the fibrous material with a dye dispersed in a solvent. The only exception is the pigment-free dye that is directly dispersed in the molten macromolecular material during fiber formation.

For dyeing of the polyester, the dye group, dye, loop, dispersion, pigment can be used.

Most of the dye is added to the dye bath in a water soluble form. Dye dissolved in water is introduced into the fabric using dyeing equipment. providing sufficient fluid flow, temperature and duration.

Pressure is the simplest method of multicolored textiles. On the surface of non-colored or monochromatic fabrics, samples are applied to the surface by application or removal of dye. During printing, the applied dye, with the aid of a thickener, sharply follows the boundaries of the sample elements and adheres to the fibrous material, but only permanently adheres to the fabric during steam, wet after-treatment and washing operations after pressure and drying.

Various methods of compression are known, including cylindrical, perrotin. film pressure. There are also special printing processes, which can in part be understood as finishing operations, such as embossing. which gives the fabric a relatively durable, convex pattern.

If the dye dye printed on the sample is printed on paper and then transferred to the fabric using heat and pressure, this is called transfer pressure. The best-known version is the so-called. Sublistatic pressure ("thermal pressure"). when sublimating dispersion dyes are transferred to the synthetic fiber material.

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Hungarian Patent No. 175900 discloses a process for preparing cotton-containing fabrics for transfer printing. By pre-treating the fabrics with the chemical, they allow the transfer pattern printing process to be applied to textiles made from pure cellulose fibers or from a mixture of cotton fibers, polyester, acrylic, polyamide or cellulose acetate.

After drying the fabric prepared according to the patented process, transfer pressure is applied. Above 210 ° C, sublimating, disperse dyes. Sample printing time is 30-60 seconds.

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The aforementioned transfer printing process refers to the dyeing or printing of textile materials based on the application of dye of sublimable type to the textile from a support strip generally made of paper. This carrier tape, which thus contains the sublimable dye, is brought into contact with the fabric and the printing roller to provide sublimation of the dye at high temperature and then secured to the fabric.

Transfusion printing is described in US-PS 4,664,672. In the process, the paper substrate is pressed onto a preheated surface under pressure of flowing steam at a temperature below thermoforming.

DE-OS 3 242 151 applies to a continuous or quasi continuous transfer printing process. In the process, heated and changeable raster materials are applied in succession to a plurality of substrates of different colors, uniformly imprinted with a given ink, and the web-like polyester textile material is dyed according to the pattern to be formed. The raster transmits a series of raster points perpendicular to the movable textile material path and, for example, separately, according to a program from an electronic unit, the pulses corresponding to the pattern.

GB-PS 1 565 047 relates to the dyeing of textiles with a reinforced or self-woven backing. The essence of the process is to dye the backing layer of the fabric with a dye that can be sublimated to the desired color under pressure, then combine (for example, knot) with a fluffy surface layer, and heat this composite fabric to sublimate the dye from the reinforcing layer. diffuses into the fluffy surface. The heat treatment may be carried out in a vacuum and subjected to an electrostatic effect. or microwave heat.

Each of the above-described finishing (coloring, molding) processes is capable of machining a single web of material, utilizing or employing different auxiliaries, aids, and prior techniques.

High production numbers are a prerequisite for economical production.

It is an object of the present invention to overcome the drawbacks of known finishing processes by a novel process which, in a simple and economical manner, enables the finishing of a polyester-based fabric without the use of dye or other auxiliary materials.

The present invention is based on the discovery that dyed polyester base fabric has a color rendering property and surface conformability. Utilizing these properties, the colorless polyester base fabric adopts a certain shade of color from a similar dyed fabric, and can be patterned and / or embossed under various coverings.

We accomplish this task by the following procedure. wherein the polyester-based fabric is dyed and / or patterned and / or embossed such that the fabric to be treated is pressurized by the application of a dyeing and / or patterning material at the same time as heat transfer.

The essence of the process is to place a table cloth by placing the colored and color-absorbing polyester-based fabrics in any order, by laying a two-dimensional pattern between the textile layers.

-2HU 201366 Β and / or a three-dimensional relief pattern is placed as the top layer, in the latter case an elastic material is laid as the bottom layer, the cover is 10-120. It is preferably maintained at 60-180 ° C, preferably 160 ° C at 2XL (P · 40x10 ⁵ Pa, preferably 30x10- '' under a pressure of 30 seconds.

In one embodiment, the process involves only coloring, i.e., finishing without placing two- or three-dimensional samples.

Another mode of implementation. that the two-dimensional sample is formed from organic material, the three-dimensional sample is formed from organic and / or inorganic material.

Place the napkin on 3-60. it is preferably formed of 10 layers.

According to a further embodiment of the process, the temperature, pressure, and exposure time are kept constant during the preparation, or the exposure time and pressure are kept constant, the temperature fluctuating, or the exposure time and temperature are constant, we keep it fluctuating.

Alternatively, the fabric made of the finished polyester material may be anchored to an organic and / or inorganic stiffener, but the stiffener may be a thermoplastic or a thermoplastic.

In the process, the fastening is carried out with adhesive or by fusing the layers by melting the surface of the stiffener.

According to the present invention, it is expedient to make a tablecloth made of a polyester material. The number of layers is arbitrary, preferably 3-60. During the making of the table, we alternately lay the color picking fabric and the usually dark color setting fabric. The tablecloth is then pressurized and kept at a given temperature for a specified period of time. The dyeing fabric repaintes the color of the dyeing fabric in a lighter shade during treatment; the latter will retain its original color and remain fit for further use.

In the case of placing a two-dimensional pattern between the color pick-up and color-releasing fabrics, which may be, for example, a paper pattern, but may be a naturally occurring vegetation such as a fern. In the latter case, even the leaf vein is redrawn.

It is also possible to influence the hue during the process. With uniform pressure and temperature, a darker shade can be added to the fabric, while fluctuation in pressure and temperature results in an uneven, bleached color effect.

The embossed surface can be created by itself, but the process can be applied at the same time as the coloring, or even the coloring can be done at the same time. At this stage of the technology, an elastic material, such as a thick felt, is placed underneath the table, while the relief is applied as a top layer.

When placing an imitation leather underneath the polyester-based fabric during the making of the table-cloth, the embossed pattern is pressed into the surface of the molten artificial leather under the influence of pressure and temperature and adopts the shape of the embossed pattern.

Alternatively, the surface of the imitation leather may be patterned by applying pressure to the polyester fabric overlaid on it with either regular or irregular ringing and heat transfer.

Pressure, temperature and exposure time depend on the raw materials being processed and the desired color depth. its uniformity, the number of place settings, etc.

g / m - polyester fabrics - which can be woven, knitted, crocheted, non-woven, etc. - in the case of a temperature of 130 to 180 ° C. the pressure is 2x10 "- 30x10" Pa, the exposure time can be 10-120 sec. By changing, fluctuating or maintaining a constant temperature and pressure parameters, additional color and / or patterning effects are achieved.

Raster-like coloring is achieved by keeping the temperature constant by periodically varying the thrust.

The main advantages of the process according to the invention are as follows:

- significantly less investment in color printing machines than is known in the art;

- costly use of auxiliary materials (paint, transfer materials, etc.);

- small space requirements;

- in a single operation, the finished product is made multiple times;

- there is no pattern rejection;

- it is possible to achieve coloring, printing and patterning effects which cannot be achieved by the finishing methods applied individually;

- quick pattern and pattern change;

- no pre- and post-treatment required;

- energy saving finishing process.

The great advantage of the various finishing methods is that small batches of several hundred meters can be produced economically, with simple manual work, without costly machinery, with virtually unlimited color, and finally with much more attractive, vivid color effects.

The process of the present invention is described in some embodiments, which are appended to the end of this description. It will be understood, however, that as stated herein, there are numerous variations of the process and the product obtained. We only mention a few areas of use: leather, clothing, furniture, automotive, wallpaper, decoration, etc.

In view of the foregoing, our claim for protection is not limited to the exemplary embodiments described herein, but extends to any process that is accomplished by the technology described herein and claimed.

/. example

Coloring

We prepare the table cloth from the pre-selected fabrics of polyester base fabric, weight 77 g / m ² , number of layers 3-20.

Color Arrangement: yellow polyester fabric red polyester fabric white polyester fabric

Pressure: 20x10 · '' Pa

Temperature: 160 'C

Duration: 30 sec

-3HU 201366 Β

Result: The red fabric side of the yellow fabric is orange while the red fabric side of the white fabric is pink.

The red color fabric retains its original red color and is suitable for further processing.

Example 2

Coloring + coloring

Starting as described in Example 1.

Example 5

Starting as described in Example 3.

Pattern layout: three-dimensional embossed polyester fabric with artificial leather stiffener

Pressure: 40x10 ⁵ Pa

60 ° C

Duration: 30 sec

Color arrangement: yellow polyester fabric red polyester fabric

Pattern Layout: A paper cut pattern is arranged between the two fabrics.

Pressure: 30x10 · '' Pa

Temperature: 160 'C

Duration: 30 sec

Result: The red side of the yellow fabric is colored orange on the exposed surface of the paper sample. the area covered by the paper pattern retains its original yellow color.

Example 3

Coloring + Embossing

Starting as described in Example 1, except that the bottom layer is a thick elastic material such as felt. The number of layers is 3-10.

Pattern and Color Arrangement: Three-Dimensional Embossing (Cotton Fabric with Dornbor Pressure) Yellow Polyester Fabric Red Polyester Fabric White Polyester Fabric

Pressure: 30x10 · '' Pa

Temperature: 160 'C

Duration: 30 sec

Result: Same as Example 1, except that the three polyester fabrics incorporate the embossing pattern of the cotton fabric.

Example 4

Coloring + Patterning + Embossing

1-3. Examples 1 to 4.

The number of layers is 3-10.

Pattern and Color Layout: Three-Dimensional Embossing Yellow Polyester Fabric Paper Pattern Red Polyester Fabric Thick Elastic Material

Result: Same as in Examples 2 and 3.

Result: The embossing pattern presses the polyester fabric into the molten surface of the imitation leather and also conveys the embossing pattern.

Claims (11)

PATIENT INDIVIDUAL POINTS A method of finishing, in particular coloring and / or patterning and / or embossing and / or stiffening textiles of polyester-based fabric, wherein the fabric to be fabricated is pressurized by the addition of a coloring and / or patterning material, with simultaneous heat transfer. that color and color-picking polyester fabrics are placed in any order. a two-dimensional pattern is laid between the textile layers and / or a three-dimensional hump pattern is applied as the top layer, in the latter case an elastic material is laid as the bottom layer, the place is 60-180 'C for 10-120, preferably 30 seconds. preferably at a temperature of 160 ° C ^í -40xl0 2xl0 ⁵ Pa, preferably kept below 30x10 ⁵ Pa. Method according to claim 1, characterized in that the two-dimensional sample is formed from organic material. 3. The method of claim 1, wherein the three-dimensional sample is formed from an organic and / or inorganic material. 4. Referring to 1-3. A method according to any one of claims 1 to 3, characterized in that the tableware is arranged in accordance with claims 3-60. preferably formed from 10 layers. 5. The method of any one of claims 1 to 3. characterized in that the temperature, pressure and time of impact are maintained evenly during the finishing process. 6. A method according to any one of claims 1 to 3, characterized in that during the finishing process, the time and pressure of the impact are maintained at a uniform, temperature fluctuating value. 7. Referring to 1-4. A method according to any one of claims 1 to 4, characterized in that the time and temperature of the impact are maintained at a uniform, pressure-fluctuating value. 8. Referring to Figures 1-7. Method according to one of Claims 1 to 3, characterized in that the finished polyester-based fabric is fixed to an organic and / or inorganic stiffener. 9. The method of any one of claims 1 to 3. characterized in that the finished polyester fabric is secured to a thermoplastic or thermoplastic coated reinforcing material. Method according to claim 8, characterized in that the fixing is carried out with an adhesive. Method according to claim 9, characterized in that the fixing is carried out by melting the surface of the stiffening material.