ES2458591A1 - Procedure for obtaining a three-dimensional transfer design by thermal press on a material and material thus obtained (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Procedure for obtaining a three-dimensional transfer design by thermal press on a material and material thus obtained. The invention relates to a method for obtaining a three-dimensional design of high definition and quality, assimilable to a well-defined embroidery, which recreates different heights or reliefs in said design, from a first flocked material (flock type) silk-screened and a second satin material of thermoadhesive polyester, commonly known in the art as "satin", both free of polyvinyl chloride (pvc). This method makes it possible to obtain an easily applied design by transfer by thermal press on the desired fabric or support, for example on fabrics or fiber supports such as polyester, cotton, lycra {reg}, polyamides, etc. The designs thus obtained are not limited in terms of their shapes, colors or sizes, being possible to obtain designs in the form of shields, logos, emblems, texts, etc. (Machine-translation by Google Translate, not legally binding)

Description

PROCEDURE FOR OBTAINING A THREE-DIMENSIONAL DESIGN OF TRANSFER THROUGH THERMAL PRESS ON A MATERIAL AND MATERIAL SO OBTAINED

The present invention refers to a procedure for obtaining a three-dimensional heat transfer design on a material or support, the procedure being of special application in the textile sector, in particular in the textile sector for sports, work or fashion, as well as the material obtained through said procedure.

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More specifically, the invention refers to a procedure to obtain a high-definition and quality three-dimensional design, similar to a well-defined embroidery, which allows to recreate different heights or reliefs in said design, from a first flocked material (Flock type) silk-screen printing and a second thermoadhesive polyester satin material, commonly known in the art sector as "satin", both free of polyvinyl chloride (PVC). This procedure allows to obtain a three-dimensional design of high definition and relief, as well as easy application by transfer by heat press on the desired fabric or support, for example on fabrics or fiber supports such as polyester, cotton, Lycra®, polyamides, etc. . The designs obtained through this procedure are not limited in terms of their shapes, colors or sizes, being possible to obtain designs such as shields, lakes, emblems, texts, etc.

In this regard, flocking consists essentially of the application of fine fibers, under an electrostatic field, to an adhesive coated substrate. Flocking allows to obtain a substrate with a wide fiber coverage and imparts a velvety texture. For its part, satin is a thermoadhesive polyester fabric with satin effects and that can have different textures, shiny smooth, matte smooth or shiny embroidered effect.

The process of the invention, therefore, allows to combine the characteristics of both materials, that is, the satin of the fabric that the satin produces and the relief effects that the flock facilitates, allowing to obtain a highly defined three-dimensional effect for the desired design.

EP 0329 767 B1, "Plush textured multicolored flock transfer and method for making the same using precolored flock", describes a method to obtain a multicolored transfer flock with a three-dimensional appearance based on the use of fibers of the longest possible length in the material of flocking.

W020041 01174, "Method for forming relief image and pattern formed by that method" describes obtaining a relief pattern by applying layers of metallic powders in a solvent on the substrate,

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the effect achieved by controlling the solids content of said layers being regulated.

The process of the invention makes it possible to obtain a three-dimensional effect in a simple way without the need to apply different flocking materials of different fiber lengths or the use of additional materials, such as metallic powders, as reflected in the current state of the art. .

Thus, an object of the invention is a procedure to obtain a high-definition and quality three-dimensional design that allows to recreate different heights

or reliefs in said design from a first silk-screened flocked material (Flock type) and a second satin thermoadhesive polyester material, commonly known in the art sector as "satin", both free of polyvinyl chloride (PVC).

For this, once the model to be reproduced in relief has been designed and which parts or motifs of it will be embossed and which will not be decided, the procedure of the invention comprises the steps of:

i) silk-screen printing on a first flocking material of uniform and constant fiber length, using screen-printed transparent polyester films, the motifs to be developed in this first material, leaving the parts or motifs that are not made in this first material empty, color by color of the model and with an intermediate drying in aeration cabinets between each color;

ii) apply by screen printing an adhesive on the motifs obtained and drying, followed by the manual application of a thermoadhesive polyester granulate on said adhesive, then gel the adhesive and the powder in order to melt both, followed by drying and brushing to eliminate unbonded powder;

iii) transferring the motifs to be developed in the second satin material, previously printed on a sublimation paper, by means of a heat press, to the second satin material, and cutting the motifs obtained in this second material; and

...,. iv) combine the motifs obtained in both materials by manually placing the motifs obtained in satin on the voids obtained in the flock and fix both materials using a heat press.

Finally, the procedure makes it possible to obtain a three-dimensional design ready for application on the desired fabric or fiber support by means of a heat press, preferably at 170-175 ° e, for 15 seconds under a pressure of 3 bar.

Preferably, the drying of the color inks from the first stage i) of the process is carried out at 700 e and for 10-12 minutes.

Preferably, in step ii) of the process, drying of the adhesive is carried out at 800 e y for 20 minutes and gelling at 1700 e for 34 minutes.

Also preferably, the transfer of the patterns made in satin in stage iii) of the process is carried out at 2000 ey for approximately 20 seconds and, finally, in stage iv), the combination of both materials by means of a heat press It is carried out at 130-140oe, for 4-5 seconds and at a pressure of 2-3 bar.

In one embodiment of the described process, the first flocking material used consists of a non-permanent flocked support sheet for the preparation of transferable flocked patterns, which can be one-color or multi-color. In the first case, this is a single color sheet, the preferred fiber height of the first flock material is 0.5 mm, while in the case of multi-color sheets, the preferred fiber height is 0.3 mm.

In another embodiment, the second thermoadhesive polyester or satin material consists of a white or colored polyester fabric with satin Ythermoadhesive effects capable of withstanding temperatures above 200 ° C.

Exemplary embodiment of the method of the invention intended to obtain a design of a football club shield (Fig. 1):

A preliminary study of the options and possibilities of design A is carried out, deciding which motifs are in flock and which are in satin based on the desired final composition. For the design parts in flock B, the pertinent photoliths or films are developed that will be reproduced on serigraphic screens. Once the colors belonging to the flock reproduced on screen have been decided, they are printed on the flock with screen printing machines, color by color, with aqueous inks, drying between color and color. Finally, an adhesive mixture with a granulate is applied on the printed colors that allows transport and joining on the satin motifs and in turn on the desired fabric or support. The design and / or colors in satin C are previously developed on a transfer paper by means of sublimation and the paper printed with the design is transferred by heat press to the satin for cutting it on a laser machine in a millimetric way piece by piece. Both pieces of satin and flock are joined by heat press. Once everything is joined and configured, the shield can be applied to the desired fabric or support.

Claims (10)

1. Procedure to obtain a three-dimensional design, similar to a well-defined embroidery, from a first silk-screened flocked material and a second satin material of thermoadhesive polyester or satin characterized in that, once decided which parts or motifs of the same will be in relief and which ones don't, understand the steps of: i) screen printing on a first flocking material of uniform and constant fiber length, from transparent silk-screened polyester films, the motives to be developed in this first material, leaving the parts or motifs that are not made in this first material, color by color of the model and with an intermediate drying in aeration cabinets between each color; ii) apply by screen printing an adhesive on the motifs obtained and drying, followed by the manual application of a thermoadhesive polyester granulate on said adhesive, then gel the adhesive and the powder in order to melt both, followed by drying and brushing to eliminate unbonded powder; iii) transferring the motifs to be developed in the second satin material, previously printed on a sublimation paper, by means of a heat press, to the second satin material, and cutting the motifs obtained in this second material; and iv) combine the motifs obtained in both materials by manually placing the motifs obtained in satin on the voids obtained in the flock and fix both materials using a heat press.

2.

Process according to claim 1, characterized in that the drying of the color inks of step i) is carried out at 700 e and for 10-12 minutes,

3.

Process according to claim 1, characterized in that in stage ii) the drying of the adhesive is carried out at 80oe, for 20 minutes and gelling at 1700e for 3-4 minutes.

Four.

Method according to claim 1, characterized in that the transfer of the satin motifs in step iii) is carried out at 2000 e for 20 seconds

5.

Process according to claim 1, characterized in that, in step iv), the combination of both materials by means of a heat press is carried out at 130-140 ° C, for 4-5 seconds and at a pressure of 2-3 bar.

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6.

Method according to any one of the preceding claims, characterized in that the first flocking material is a support sheet with non-permanent single-color flocking with a fiber height of 0.5 mm.

7.

Method according to any one of claims 1-5, characterized in that the first flocking material is a support sheet with multi-colored non-permanent flocking with a fiber height of 0.3 mm.

8.

Method according to any of claims 1-5, characterized in that the second thermoadhesive polyester material or satin is a white or colored polyester fabric with satin effects and thermoadhesive capable of withstanding temperatures above 200oe.

9.

Three-dimensional design obtained according to the method of any of the preceding claims, characterized in that it can be transferred by heat press at 170-175 ° e, for 15 seconds, under a pressure of 3 bar, on a fabric or support.

10.

Three-dimensional design according to claim 9, characterized in that it is transferred onto a fabric or a support made of polyester, cotton, Lycra or polyamides fibers.