Thermal press-flattened and dye sublimation transfer fabric and processing method thereof

Abstract

This invention relates to a heat-pressed-sublimation transfer fabric and its processing method. The method includes: a preparation step of preparing a fabric formed from polyester stretch textured yarn (DTY) and thermoplastic polyester elastomer (TPEE) yarn; a leveling step of hot-pressing and leveling the fabric at a temperature of 100°C to 170°C, followed by cooling; and a sublimation step of sublimating the hot-pressed and cooled fabric at a temperature of 170°C to 190°C to form a pattern on the fabric, thereby producing a heat-pressed-sublimation transfer fabric. The processing method of this invention can produce heat-pressed-sublimation transfer fabric made entirely of polyester fiber material, achieving near-complete recyclability and avoiding the problem of TPEE material not being able to withstand processing temperatures above 200°C. This results in a smooth and color-saturated polyester heat-pressed-sublimation transfer fabric.

Claims

1. A processing method for heat-pressed-sublimation transfer fabric, comprising: Preparation steps: Prepare fabric made of polyester stretch textured yarn (DTY) and thermoplastic polyester elastomer (TPEE) yarn; The flattening step involves hot-pressing the fabric at a temperature of 100°C to 170°C and then cooling it; and the sublimation step involves sublimating the hot-pressed and cooled fabric at a temperature of 170°C to 190°C to form a pattern on the fabric, thereby producing a heat-pressed-sublimation transfer fabric.

2. The processing method as described in claim 1, wherein, The leveling step includes: a first leveling step, in which the fabric is first hot-pressed and leveled via a first surface, followed by cooling; and a second leveling step, in which the fabric is second hot-pressed and leveled via a second surface, followed by cooling, wherein the thermal sublimation step is performed via the first surface.

3. The processing method as described in claim 2, wherein, The hot pressing temperature of the first leveling step is 100°C to 140°C, and the hot pressing temperature of the second leveling step is 140°C to 170°C.

4. The processing method as described in claim 1, wherein, In this leveling step, the fabric is hot-pressed and leveled at least once through the first and second surfaces at a temperature of 100°C to 170°C, and cooled after each hot-pressing and leveling. In the case that the last hot-pressing and leveling in the leveling step is performed through the first surface, the thermal sublimation step is performed through the second surface, and in the case that the last hot-pressing and leveling in the leveling step is performed through the second surface, the thermal sublimation step is performed through the first surface.

5. The processing method as described in claim 4, wherein, In this leveling step, the at least one hot pressing leveling is performed sequentially with increasing temperature.

6. The processing method as described in claim 1, wherein, The polyester stretch textured yarn contains polyethylene terephthalate (PET).

7. The processing method as described in claim 1, wherein the polyester textured yarn is a multifilament yarn having an X1 / Y1 specification, where X1 is 40~100 and Y1 is 40~150; and the thermoplastic polyester elastomer yarn is a monofilament yarn having an X2 specification, where X2 is 20~100, wherein X1 and X2 represent fineness in denier; and Y1 represents the number of individual fibers.

8. The processing method as described in claim 7, wherein, The stretch textured polyester yarn has an X 1 / Y 1 specification of 75 / 72, and the thermoplastic polyester elastomer yarn has an X 2 specification of 40.

9. The processing method as described in claim 1, wherein, The fabric is a single-sided fabric and is woven by a small or large circular knitting machine.

10. A heat-pressed-sublimation transfer fabric manufactured by any one of the processing methods described in claims 1 to 9.

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