FR2644486A1 - PROCESS FOR PRODUCING TEXTILE ARTICLES THAT ARE IMPERMEABLE AND INSENSITIVE TO STAINS AND TEXTILE ARTICLES THUS PRODUCED - Google Patents

Abstract

Process allowing the production of a textile article impermeable and insensitive to stains, which consists, after having carried out conventional treatments for preparing the fabric (desizing, bleaching, drying, dyeing and / or printing, heat-setting and stabilization), in subjecting it to a treatment making it possible to make it impermeable and insensitive to stains, said treatment being characterized in that a coating layer is deposited on one face of the textile article, the article thus coated being then heat-set and then, in a second step, the article thus coated is subjected to a waterproofing treatment carried out by full-bath padding followed by a heat-setting operation.

Description

PROCESS FOR PRODUCING IMPERIAL TEXTILE ARTICLES

  MEASURED AND INSENSITIVE TO STAINS AND TEXTILE ARTICLES

SO, ACHIEVED.

  The present invention relates to an improved process for making waterproof and stain-resistant textile articles; it also concerns a new type of textile articles thus produced.

  In the rest of the description, the invention will be

  described for the treatment of a tissue, but it is obvious

  that this is not limiting and that the process according to the invention could also be applied to any other type of textile support, such as, for example

nonwoven tablecloth, knit.

  It has long since been proposed to make impervious and stain resistant textile articles, the most well known being those commonly referred to

  by the expression "oilcloth, plasticized fabric".

  Such products, however, have certain disadvantages. Thus, in the case of waxed fabrics that best meet the criterion of impermeability and insensitivity to stains, the main disadvantages are an unpleasant touch, a bad fall, a plastic appearance and non-textile and a lack of aesthetics. Moreover, they also have the disadvantage of poor aging (their touch becomes "fat" in time) and also be very slippery, the liquid spreading

strongly on their surface.

  "Laminated fabrics" have been developed to have products with many characteristics

  more textiles (flexibility, touched), but

  the same disadvantages as those mentioned above for oilcloths. The most widespread solution for producing such plasticized fabrics is that described in French Patent 1,441,569, this solution consisting of

  to realize on the surface of the textile support a coating

  composed of a superposition of layers

  tially a suitable and firmly adhering primer

  to the support, then, after deposition of this primer, a conventional coating layer which is

  itself covered with an impervious protective layer

  resistant to abrasion and also adhering to the

  coating layer. These different layers are

  placed on the surface of the support by using conventional coating techniques (coating with the rake in the air, coating with the ream on cylinder and

coating at the "thousand points".

  Now it has been found, and this is the object of the present invention, an improved method which

  only presents the advantages and prior solutions

  with regard to waterproofing and insulation.

  stain awareness, but also eliminates the disadvantages of these products by the fact that the article

  obtained retains most of its characteristics.

  textile ticks of origin, namely a pleasant touch (flexibility>, a good fall, a limitation of the spreading

  liquids when they spill on the surface.

  In addition, the product obtained in accordance

  method according to the invention can be cleaned easily.

  In general, the invention therefore relates to

  a method for carrying out the textile article

  waterproof and stain-resistant tile, a process that

  after having performed conventional treatments

  fabric preparation (desizing, bleaching, drying, dyeing and / or printing, heat-setting,

  stabilization), and subject it to a treatment that

  both to make it impervious and stain resistant, said treatment being characterized in that: - firstly, is deposited on one side of the textile article a coating layer, the article thus coated is then heat set then; in a second step, the article thus coated is subjected to an impermeabilization treatment carried out by

  full bath padding followed by a thermoforming operation

  fixation. In other words, and in summary, the process according to the invention is characterized in that the first coating phase is carried out in such a way that the coating product is deposited only on the surface of the article.

  whereas, on the other hand, the waterproofing treatment

  is made in such a way that the article is im-

prégné à coeur.

  Preferably, as a coating method, use is made of

  will be the "rake-in-the-air" process, which allows

  accurately deposit a coating on the surface of a

  Harbor. Of course, other coating techniques could possibly be used provided that precautions are taken and possibly adapted so that the coating covers only one of the faces of the article.

  Moreover, according to a variant of the method con-

  form and the invention, after coating and heat-setting,

it is possible to carry out a calendering.

  With such a process, an article is obtained which is not only impermeable and stain-resistant but which, surprisingly, retains substantially all the textile characteristics of the fabric of the fabric.

departure (flexibility, touched ..).

  The invention and the advantages it brings will however be better understood thanks to the exemplary embodiment.

  given below & indicative but not limiting.

Example:

  A fabric treated according to the method is produced

  according to the invention under the following conditions.

Basic fabric characteristics:

  Ecru fabric weighing 125 g / m2 - Canvas and comforter armor

  carrying 30 yarns / cm in warp and 27 strokes / cm in weft.

  The yarns used for this fabric are polyester yarns.

ter / cotton 50/50 200 dtex (NM 50).

  After conventional treatment of preparation (de-

  sizing, bleaching, brightening and drying on ream),

  the fabric is printed or dyed and then heat-set and stabilized

Lisa.

  He is then subjected to the waterproofing treatment.

  stain and insensitivity according to the invention.

  tion, which consists in: - firstly, submitting the article thus prepared to a coating on a machine implementing the so-called "scrapes in the air" process and which, of a

  In general, it consists in depositing a dough

  prepared on the surface of the fabric without the material entering the heart of the latter; the prepared coating paste is a conventional acrylic type paste; the fabric thus coated on one side is then dried and heat set on conventional train;

  - then, in a second step, we realize the

  phase of the process according to the invention

  This is to say that the article is subjected to a full bath padding waterproofing treatment, the fabric passing at the exit of the scarf inside a paddle.

drying and thermofixatlon.

  As an indication, as enductlon compositions lb and waterproofing, the following compositions are used: - for coating: a paste consisting of products sold under the names: - "Dlcrylan AS": 1000 g / liter - "Knittex FLC ": 40 g / liter and ammonia: 20 g / liter,

  this preparation being mixed with a constant preparation

  mixed with the product marketed under the

  appointment: - "Dicrylan thickener 0": 20 g / liter

  and isopropyl alcohol: 20 g / liter.

  and as waterproofing product a composition comprising a mixture of the products marketed under the names:

- 40 g / liter of: "PHOBOTEX F.T.C."

  g / liter of: "SCOTCMhGARD F.C. 270" g / liter of: "RB Catalyst" and 20 g / liter of isopropyl alcohol complete with a quantity of water required to obtain the

desired amount of bath.

  By proceeding in this way, we obtain a

  fabric that retains virtually all its features

  (touch, softness) of the basic printed fabric and

  which, on the other hand, is not only perfectly

  but also totally insensitive to stains. Such a fabric can be used as a textile tablecloth

  indoor or outdoor, but could find

  other applications such as, for example,

  kitchen racks, placemats, umbrellas, parasols, clothing ... Of course, it is possible to implement the method according to the invention using as support other materials than those subject of the example supra. In such a case, it will be sufficient to adapt the coating and waterproofing products to the

  composition of the starting material.

Claims (4)

  1 / Method for producing an article   impervious and stain resistant textile, which   after performing conventional fabric preparation treatments (desizing, bleaching, drying, dyeing and / or printing, heat-setting and   stabilization), to submit it to a treatment which   both to make it impervious and inshibe stain, said treatment being characterized in that: - is deposited on one side of the textile article a coating layer the article thus coated is then heat set then; in a second step, the article thus coated is subjected to an impermeabilization treatment carried out by   Full bath padding followed by a thermotube operation   fixation. 2 / A method according to claim 1, characterized in that the coating layer is deposited on one of the faces of the textile article according to the technique called "at the scrapes in the air ".   3 / Method according to one of claims 1 and 2,   characterized in that after coating and heat setting,   a calendering operation of the product is carried out.   4 / Textile article impervious and insensitive to   obtained by the process according to one of the claims 1 & 3