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Sublimation Ink for Transfer Printing

A technology of thermal sublimation and ink, applied in the direction of ink, transfer printing method, application, etc., can solve the problem of not providing soft hand feeling

Inactive Publication Date: 2017-11-10
NANO & ADVANCED MATERIALS INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Plastic inks can be printed onto a variety of textile materials, but they do not provide the desired soft hand

Method used

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  • Sublimation Ink for Transfer Printing
  • Sublimation Ink for Transfer Printing
  • Sublimation Ink for Transfer Printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Preparation of blocked polyurethane prepolymer crosslinking agent

[0035] 1.62 grams of phenol and 0.03 grams of stannous octoate were dissolved in approximately 2 grams of DMF. 20 grams of toluene-2,4-diisocyanate-terminated polypropylene glycol having an average molecular weight of about 2300 (available from ) (PPG-NCO) was dissolved in about 100 ml of acetone. The solution was deoxygenated by bubbling nitrogen gas and stirred by a magnetic stirrer. Then, the PPG-NCO solution was added to the DMF solution and heated at about 65 °C for 4 hours under nitrogen protection to initiate a blocking reaction. Blocking of the PU prepolymer was complete when all free -NCO groups were consumed, where the consumption of -NCO groups was determined using acetonebutylamine titration. Below is the equation for this closure reaction.

[0036]

[0037] catalyst

[0038]

Embodiment 2

[0040] A base sublimation ink was made from 30 wt% gum rosin, 39 wt% triglycerides, 4 wt% beeswax, and 27 wt% disperse dyes.

[0041] To 2g of base sublimation ink add the following ingredients and mix to form a homogeneous paste:

[0042]

Embodiment 3

[0044] To 2g of base sublimation ink add the following ingredients and mix to form a homogeneous paste:

[0045]

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Abstract

The present application provides a sublimation ink which is capable of being transferred to natural fiber fabrics, such as cotton and linen, in addition to synthetic fabrics, such as polyester, nylon, etc., and shows significantly improved color fastness. The sublimation ink may include a resin containing at least one active hydrogen, a crosslinking agent having at least two isocyanate (-NCO) groups, and one or more colorants. The sublimation ink may also include one or more carriers, binders, thickeners, and / or solvents. An image can be printed on a transfer medium (e.g. paper) at room temperature with the sublimation ink using conventional offset printer so that the sublimation ink remains inactive. The image can be subsequently transferred onto any desired fabrics under heat and pressure, in which the sublimation ink is activated and bonds the colorant to the fabrics with excellent color effect.

Description

technical field [0001] This patent application relates to a sublimation ink for transfer printing on fabrics. Background technique [0002] Transfer printing is a versatile technique used to transfer text, images and patterns onto textile materials and other objects. The two main types of inks used for transfer printing are sublimation inks and thermoset inks (plastisol inks). For sublimation inks, the dye sublimates at about 190-210°C and attaches to the fabric. However, sublimation inks are only suitable for polyester fabrics and do not have satisfactory color fastness when printed on cotton fabrics. Typical plastic inks are vinyl resins dispersed in plasticizers and transferred to fabrics with heat. Plastic inks can be printed onto a variety of textile materials, but they do not provide the desired soft feel. [0003] Therefore, there is a considerable need for improved inks for use in transfer printing processes. Contents of the invention [0004] The present appl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P5/28D06P1/52D06P1/16D06P1/46
CPCD06P1/16D06P1/46D06P1/5285D06P5/004C08G18/4825C08G18/548C08G18/6212C08G18/6237C08G18/6517C08G18/7621C08G18/80C09D11/037C08G18/3206C08G18/4027C08G18/4063D06P1/54C09D11/102C09D11/103C09D11/107C08G18/10C08G18/2825
Inventor 徐涛傅丽
Owner NANO & ADVANCED MATERIALS INST