Fabric transfer-printing paint and preparation method thereof

Abstract

The invention discloses a fabric transfer-printing paint and a preparation method thereof. The technical scheme of the transfer-printing paint is that the transfer-printing paint comprises, by mass, 100 parts of epoxy resin-modified polyurethane, 7-12 parts of toluidine-modified dicyandiamide and 3-7 parts of a brightening agent. The molecular weight of the epoxy resin-modified polyurethane is 4500-5500, and the viscosity value of the epoxy resin-modified polyurethane is 1000-2000mPa.s. The paint is a high-performance environment-friendly adhesive with the following advantages and effects: the paint does not contain an organic solvent; when the paint is used in production and processing, toxic organic matter volatilization is avoided, such that worker health is protected, and the atmosphere is not polluted; a solid content of the paint is higher than 90%; when the paint is used in production and processing, efficiency is high; the paint is stable when stored in normal temperature, and is convenient to transfer; the paint has high solid content, and is not prone to volatilization; the paint has good repeatability between batches; the paint can be applied in traditional transfer-printing equipment, such that the paint is convenient to popularize.

Description

technical field [0001] The invention relates to the technical field of organic polymer compounds, in particular to a fabric transfer coating and a preparation method thereof. Background technique [0002] Transfer printing is an emerging printing process, which can be roughly divided into two steps: transfer film printing and transfer processing, that is, firstly apply a release agent on the carrier film, print graphic information, and apply adhesive. Then use certain conditions to make the printed matter and the carrier film firmly bonded. Transfer film usually includes three basic parts: release layer, oil film layer and adhesive layer. The transfer coating is used to realize the adhesive layer of the transfer film. For the fabric transfer printing process, the transfer coating is generally applied to a film, such as a PET release film, and then the film is bonded to the cloth, and then the film is peeled off to realize the transfer of the cloth. [0003] Traditional tr...

AI Technical Summary

Problems solved by technology

However, this kind of solvent-free coating needs to be heated to its softening point before it can be used (generally, the softening point of epoxy resin is 55~95°C), which requires changes to traditional fabric transfer equipment, especially the fabric dipping tank. and require additional energy for heating

In addition, this also limits the use of materials with a low softening point or low melting point as the base layer in transfer printing. For example, PVC base layers and paper base layers should avoid using hot-melt transfer printing.