WO2016150175A1

WO2016150175A1 - Gold stamping process

Info

Publication number: WO2016150175A1
Application number: PCT/CN2015/095177
Authority: WO
Inventors: 丁枫; 沈建峰; 黄凯
Original assignee: 海安启弘纺织科技有限公司
Priority date: 2015-03-26
Filing date: 2015-11-20
Publication date: 2016-09-29
Also published as: CN104691125A; CN104691125B

Abstract

A gold stamping paste printing method, comprising the following steps: step 1, coating a press roller of a printing machine with an embossed gold stamping foil; step 2, pressing the press roller on a raised fabric, and enabling the gold stamping foil to cover the fabric; step 3, putting the fabric pressed with the gold stamping foil in a baking oven of which the temperature is 160 to 180 °C, performing heat preservation for 15 to 30 minutes, and enabling gold stamping glue to be solidified on the surface of the fabric; and step 4, tearing off the gold stamping foil after cooling, thus obtaining a gold stamping fabric. The gold stamping foil is able to form any grains and glossiness which are required, and a printed fabric is bright in color and is firm and durable.

Description

Hot stamping process

Technical field

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a printing technique, particularly to printing a gold material on a fabric with a gold foil.

Background technique

The bronzing paste is a slurry with hot melt properties, which can be crosslinked and self-crosslinked on the fabric. It can be used for any textile hot stamping and sticky beads, flocking printing, etc. The printed fabric is soft to the touch, excellent in scrub resistance and fastness, and extremely elastic. This product has good stability. It is the most ideal non-toxic and environmentally friendly product for fabric printing.

The bronzing paste printing is to transfer a kind of pearl-like material to the fabric through the bronzing paper. Under the sunlight or strong light, it gives off a pearl-like luster and embellishes the dazzling print pattern.

Ordinary bronzing technology has been widely used in the industry, that is, the stamp is printed on the substrate, and the hot stamping is applied to the hot stamping paper. After the drying, the hot stamping paper is covered, and the hot pressing is performed according to the pressure, temperature and time required by the process, and the hot stamping is removed after cooling. paper.

Traditional hot stamping printing process: picture → roll → color → printing → printing → drying and curing → finished product. The traditional bronzing paste printing uses pressure to print the pattern on the flower roll on the fabric after dyeing and so on. In order to give the product a richer color, the color is usually adjusted first in the bronzing paste, due to the ink and bronzing. The compatibility of the pulp is poor, and the bronzing process is about 180 degrees Celsius, so that the dye of the fabric is deep in the subsequent use process, the small particles of ink will gradually migrate to the surface of the rubber layer, so the product is lower in color fastness, especially The color fastness of velvet products is usually 2-3 grades. Therefore, such fabrics can only go to the low-end market and cannot be exported.

The use of color fastness enhancers for hot stamping such as sodium metaaluminate causes an increase in manufacturing costs and restrictions on blowdown.

Gold foil paper is commonly known as anodized aluminum in the north of China. It is composed of a polyester film (PET) and a multilayer chemical coating applied on its surface. Polyester films are typically 12 microns thick, with some coatings acting to create a decorative effect, while others are used to control the performance of the bronzing paper, and different coatings are suitable for different substrates. The role of the aluminum layer is to produce a reflective effect, which is formed by the aluminum wire being condensed onto the bronzing paper under ultra-low vacuum conditions after being sublimed by high temperature.

The existing bronzing paper printing paper bronzing paper mainly comprises the following components:

Base layer: usually composed of tensile high temperature resistant polyester.

Peeling layer: It is a silicone resin, which is detached from the base layer. The tightness of the peeling layer directly affects the size and quality of the hot stamping pattern.

Glue layer: a thermoplastic resin that can be bonded to a burnt object.

The object of the present invention is to provide a hot stamping printing process, which mainly solves the above problem of poor color fastness.

Summary of the invention

The invention provides a method for printing a bronzing paste, characterized in that the steps are as follows:

Step 1. wrapping the stamped bronzing paper on the press roller of the printing machine;

Step 2, pressing on the piled fabric, and pressing the bronzing paper on the fabric;

Step 3, the fabric pressed with hot stamping paper is placed in an oven at 160-180 ° C for 15 to 30 minutes, so that the bronzing adhesive is cured on the surface of the grey cloth;

Step 4. After cooling, remove the bronzing paper to obtain a bronzing fabric.

Compared with the prior art, the invention has the advantages that: 1) the bronzing rubber is softened after being kept in the environment of 130 ° C for 30 minutes in the dyeing cylinder, so that the suede of the product is softer; 2) the bronzing glue is also dyed in the grey cloth. Coloring, so the hot stamping transfer paper does not need to add ink when it is prepared, it is more environmentally friendly; 3) After the dyeing of the grey fabric is finished, the direct finished product is shaped, there is no curing process of about 180 °C, and the color fastness is better.

The gilding paper of the invention can form any desired texture and gloss. After printing, the fabric has bright color, no cracking, no fading, no odor, firmness and durability, and can be machine washed.

The beneficial effects of the present invention are illustrated below using experimental data:

DRAWINGS

Figure 1 is a conventional process

2 is a process method of the present invention

detailed description

The invention is further illustrated by the following examples.

Example 1

A method for printing a bronzing paste, characterized in that the steps are as follows:

In step 4, after cooling, the hot stamping paper is torn off to obtain a gray cloth printed with a hot stamping process.

In step 5, the treated grey fabric is dyed and normal post-treated to obtain a hot stamping printed product.

Example 2

Step 1: adding the bronzing paste without ink to the tank, and pressing the specific pattern on the hot stamping paper by the flower roll;

Step 2, pressing the prepared bronzing paper by a press roll on the surface of the fabric to be piled;

Step 3, the fabric pressed with hot stamping paper is passed through a drying cylinder at 180 ° C, and the cloth speed is 40 m / min;

Step 4: After the cloth is rolled and placed for 12 hours, the hot stamping paper is torn off;

Step 5: dyeing the gray cloth printed with hot stamping glue into the dyeing cylinder and performing other finishing to obtain a hot stamping printing product.

Claims

A method for printing a bronzing paste, characterized in that the steps are as follows:

Step 1. wrapping the stamped bronzing paper on the press roller of the printing machine;

Step 2, pressing on the piled fabric, and pressing the bronzing paper on the fabric;

Step 3, the fabric pressed with hot stamping paper is placed in an oven at 160-180 ° C for 15 to 30 minutes, so that the bronzing adhesive is cured on the surface of the grey cloth;

Step 4. After cooling, remove the bronzing paper to obtain a bronzing fabric.