WATERLESS STAINING TECHNIQUE FOR TEXTILE

Abstract

Anhydrous dyeing method for textile, including the steps of: using a pure dye as a plating material and a textile fabric as a substrate, and depositing the dye onto a surface of the textile fabric by using a physical vapor deposition technique. The color of plated textile fabric is fixed through steaming, heat setting or other post-processing methods. The invention achieves the purpose of dyeing textile fabric by depositing dye onto the surface of the textile fabric uniformly and densely using a physical vapor deposition technology, and fixing the color in a finishing step. The process is simple and convenient, produces no waste water discharge, has a high utilization rate of dye, and is operable and feasible for mass production.

Claims

1. An anhydrous dyeing method for textile, comprising the steps of: (a) suspending substantially uniformly dried particles of a dye in a closed space with a predetermined degree of vacuum at a predetermined temperature; (b) passing a fabric to be dyed through the closed space to allow the dried dye particles adhere directly from a suspension state in the air to the surface of the fabric to achieve a dyeing effect, wherein the enclosed space does not contain supercritical carbon dioxide.

2. The anhydrous dyeing method according to claim 1, wherein the dried particles are of a natural dye or a synthetic dye.

3. The anhydrous dyeing method according to claim 1, wherein the dye is in the form of powder, granule or lump before being suspended in the air.

4. The anhydrous dyeing method according to claim 1, wherein the fabric is a fabric of a synthetic fiber selected from polyester, acetate, polyamide, polypropylene, polyvinyl chloride, acrylic, or a fabric of a natural fiber selected from cotton, linen, silk, viscose fibers, or a fabric of a blended fiber from said synthetic fibers and said natural fibers.

5. The anhydrous dyeing method according to claim 1, wherein said dye is suspended by a physical vapor deposition technique selected from a group consisting of vacuum deposition, sputter plating, arc plasma plating, ion plating, and molecular beam epitaxy.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0012] FIG. 1 is a flowchart of anhydrous dyeing method of textile according to a preferred embodiment of the present invention.

[0013] FIG. 2 is a schematic diagram of the dyeing process using vacuum evaporation plating technology.

DETAILED DESCRIPTION OF THE INVENTION WITH EMBODIMENTS

[0014] The specific process of anhydrous dyeing method with a disperse dye for a polyester fabric is described as follows:

(1) Preparation of Disperse Dye Plating Material:

[0015] The pure disperse dye (manufactured by Jiangsu Yabang: disperse red FB) in powder form was placed in a constant temperature oven (BINDER FD 53 300C), and dried at 50 C. for 20 minutes to remove extra moisture from the dye.

(2) Pre-Treating Textile:

[0016] Use a conventional pre-dyeing process with steps, such as desizing, bleaching, oil-removing, etc., to pre-treat the textile to be dyed. The steps are routine operation techniques in the field, and the requirements of the pre-treatment are also usual and need not be described here.

(3) Plating of Polyester Fabric:

[0017] select an oil-removed woven white fabric (100% PET, DTY, 50D/72F, 100 g/m.sup.2) at a size of 15 cm15 cm, place the dried disperse dye into a crucible within a high vacuum resistance evaporative plating machine (Beijing Ticono Technology Co., Ltd., ZHD-300M2). Turn on the plating machine, vacuum to 1.010.sup.2 Pa, adjust the resistance evaporative current to about 42 A, till the current is stable. Open the baffle of evaporative crucible for starting dye plating. Control the thickness of the dye plating at around 200 nm. When finishing, close the baffle of evaporator crucible, then turn off the plating machine and take out the plated polyester fabric.

(4) Fixing of Plated Polyester Fabric:

[0018] The polyester dyed fabric prepared in step (3) was subjected to fixing in an oven (BINDER FD 53 300C). Fixation parameters: 180 C., 3 minutes.

[0019] The color penetration effect of polyester fabric dyed by this method is ordinary by industry standards, and the color shows obvious differences on front and back sides. To reduce the color difference between the front and back sides, step (3) may be repeated once on the back side of the polyester fabric. The color depth of the polyester fabric depends on the thickness of the plated dye, and the thickness of the plated dye can be adjusted according to specific needs.

[0020] Based on testings, the polyester color cloth dyed in the above described embodiment has shown improved color fastness, and satisfies general requirements for the textile fabric used in the commerce. Thus, the present invention has realized the anhydrous dyeing process for textile fabrics.

[0021] It is to be understood that the specific embodiment of the invention described above is an example and the invention is not intended to be limited by the disclosure. It will be apparent to those skilled in the art that the present disclosure may be modified or varied in accordance with the above-mentioned examples, for example, corresponding adjustments and variations can be made to fabrics of various materials and different production scales. All such modifications and variations are intended to be within the scope of the appended claims of present disclosure.