Black ink composition

Abstract

This invention provides a black ink composition comprising at least a black dispersed dye composition and an auxiliary agent. The black dispersed dye composition comprises 0.5 wt% to 30 wt% of 100 wt% of the black ink composition, and the auxiliary agent is the balance. The black dispersed dye composition comprises at least: Disperse Blue 360, Disperse Blue 183, Disperse Brown 27, Disperse Yellow 54, and Disperse Red 60. The auxiliary agent comprises at least a solvent. This invention provides a black ink composition prepared from a dispersed dye composition composed of a mixture of various specific dispersed dyes. When used in the subsequent preparation of heat transfer fabrics, it allows for increased tolerance of the working conditions in the heat sublimation transfer process without altering the traditional heating roller mechanism, simply by combining specific dispersed dyes in appropriate proportions.

Description

[Technical Field]

[0001] This invention relates to an ink composition, particularly a black ink composition formed by a black disperse dye composition of a variety of specific disperse dyes. This ink composition is particularly suitable for the thermal sublimation transfer process of textiles (e.g., fabrics), and by using the black disperse dye composition, the permissible error of the working conditions of the thermal sublimation transfer process is increased, and the finished textile product after transfer has superior color difference value, strength and sublimation fastness. [Previous Technology]

[0002] The sublimation transfer process for textiles, as described in Taiwan Invention Patent Publication No. I555899 "Method for Sublimation Fabric Transfer" (hereinafter referred to as Document 1), involves heating a dye layer containing disperse dyes that has been printed on transfer paper under specific working conditions, so that the disperse dyes are vaporized by a heated roller and transferred onto polyester or nylon fabric. Document 1 only uses color fastness to washing, color fastness to rubbing, and color fastness to sunlight as quality standards for sublimation fabrics. However, Document 1 does not consider that the fabric must be exposed to high temperatures and sunlight during transportation when loaded in a container, and therefore does not consider the issue of sublimation fastness to heat migration. In addition, Document 1 does not explore color difference value and intensity, because there is no necessary correlation between the above three color fastness values ​​and color difference value and intensity. Generally, in the quality measurement standards for sublimation fabrics, the color difference value DE measured by the CIE LAB color difference formula should be less than 0.8 compared to the standard sample fabric. The color intensity is calculated using the Kubelka-Munk Theory, which sets the intensity of the standard sample fabric at 100%, then the qualified product should be within 100% ± 3%. The above color difference value and intensity can be measured by a spectrophotometer, such as the Gretag Macbeth Color-Eye 2180UV / 2180. The standard sample fabric is produced by printing standard sample ink onto transfer paper to form a standard sample pattern paper, and then printing it onto standard blank fabric (usually polyester fiber fabric, specification 75 denier / 72 strips) through a sublimation transfer process using a hot press at a standard pressure of 50±10 psi, a standard operating temperature of 210℃, and a standard operating time of 21 seconds.

[0003] The sublimation transfer process utilizes heated rollers to heat the fibers in the fabric, causing the crystalline zones of the fibers to open. Simultaneously, the dispersed dye is vaporized by the heated rollers and enters the opened crystalline zones. After the fabric cools, the dispersed dye is fixed within the crystalline zones. In other words, the sublimation transfer process is related to the heat energy received by the fabric and the dispersed dye; simply put, the heat energy comes from temperature and time. Therefore, the color difference and intensity of fabric after the sublimation transfer process are necessarily related to the temperature of the heated rollers. Furthermore, the full width of the heated rollers must be greater than the full width (horizontal) of the fabric. For fabrics with a full width of approximately 58 to 60 inches, to ensure acceptable color difference and intensity across the entire width, using standard sample pattern paper requires controlling the temperature error of heated rollers exceeding 60 inches in width so that the left, center, and right areas are all within ±2°C of the standard operating temperature. Therefore, heating rollers must be equipped with precise temperature control equipment to achieve the aforementioned temperature error. However, precise equipment means that more equipment costs must be invested, and these costs will be passed on to the cost of the fabric, thus affecting sales volume and increasing the burden on consumers.

[0004] Even if the heating roller is equipped with precise temperature control equipment, the contact time between the fabric and the heating roller is still a factor determining the color difference and intensity of the fabric after the sublimation transfer process. Generally speaking, in order to maintain acceptable color difference and intensity in the fabric direction (vertical direction, that is, the direction perpendicular to the width), the contact time between the fabric and the heating roller must be controlled within ±2 seconds of the standard operating time when using standard sample pattern paper. However, in reality, during the sublimation transfer process, even if the heating roller has reached the standard operating temperature, it is unavoidable that the operating speed will increase from zero to the standard operating speed and decrease from the standard operating speed to zero in the initial and final stages of the transfer process, respectively. Therefore, the fabric in the initial and final stages is usually discarded due to unacceptable color difference and intensity, which will also pass on the cost to the fabric, thus affecting sales and increasing the burden on consumers. In addition, even if an emergency stop and start function is installed on the transmission equipment of the heating roller in order to reduce the waste of fabric in the initial and final stages, it is easy to shorten the service life of the transmission equipment, which increases the maintenance cost of the equipment.

[0005] From the above, it can be concluded that: (1) Reference 1 only focuses on the three color fastnesses, without discussing sublimation fastness, color difference value and strength; (2) If a qualified color difference value and strength are required, the process conditions need to be controlled within a narrow operating range, that is, within a narrow operating temperature range of ±2℃ and a narrow operating time range of ±2 seconds; (3) It is inevitable to discard the fabric in the initial and final stages, or accept the shortened service life of the transmission equipment. The above (2) and (3) both involve the mechanism of the traditional heating roller, which leads to a narrow operating temperature range and a narrow operating time range. The above (1) also focuses on the discussion of the three color fastnesses based on the mechanism of the traditional heating roller, while ignoring sublimation fastness.

[0006] Therefore, if the working conditions of the thermal sublimation transfer process can be widened without changing the mechanism of the traditional heating roller, and the color difference, strength and sublimation fastness can be improved, this is the direction that researchers in the field of thermal sublimation transfer are striving to overcome. [Summary of the Invention]

[0007] Therefore, the purpose of this invention is to increase the tolerance of the working conditions of the thermal sublimation transfer process by using a disperse dye composition made by mixing a variety of specific disperse dyes after selection, without changing the mechanism of the traditional heating roller, and by using the characteristics of various disperse dyes as the research object. This results in an operating temperature range greater than ±2°C and an operating time range greater than ±2 seconds, and the finished textile product after transfer has superior color difference value, strength and sublimation fastness. The color difference value DE is less than 0.8 compared with the standard sample fabric (comparative example), the strength is within 100% ±3% compared with the standard sample fabric (comparative example), and the sublimation fastness is the same as or better than that of the standard sample fabric (comparative example).

[0008] It should be noted that the use of "~" in this specification and the scope of the patent application indicates that the range of values ​​is the range that includes the values ​​recorded before and after "~" as the lower limit and upper limit; the use of "wt%" in this specification and the scope of the patent application refers to the weight percentage.

[0009] Based on the above-mentioned objective, a black ink composition is provided, comprising at least a black dispersed dye composition and an excipient. The black ink composition comprises 100 wt% of the black dispersed dye composition, which comprises 0.5 wt% to 30 wt% of the black dispersed dye composition, and the excipient is the balance. Specifically, the black dispersed dye composition comprises at least: 20 wt% to 30 wt% of Disperse Blue 360 ​​(CAS NO. 70693-64-0), 20 wt% to 30 wt% of Disperse Blue 183 (CAS NO. 2309-94-6), 25 wt% to 35 wt% of Disperse Brown 27 (CAS NO. 94945-21-8), and 10 wt% to 20 wt% of Disperse Yellow 54 (CAS NO. 10). The adjuvant contains 12223-85-7), and 1wt% to 10wt% of Disperse Red 60 (CAS NO. 12223-37-9); and the adjuvant contains at least one solvent.

[0010] According to the above-mentioned black ink composition, the black ink composition is used in a thermal sublimation transfer process of a textile.

[0011] According to the above-mentioned black ink composition, the solvent is an inorganic solvent, an organic solvent, or a combination of an inorganic solvent and an organic solvent; the inorganic solvent is water, and the organic solvent is selected from at least one of the group consisting of methanol and isobutyl alcohol (IBA) or a combination thereof.

[0012] According to the above-mentioned black ink composition, the auxiliary agent further includes a dispersant and / or a binder.

[0013] According to the above-mentioned black ink composition, the adhesive is polyvinyl butyral (PVB).

[0014] According to the above-mentioned black ink composition, the dispersant is a silane coupling agent.

[0015] According to the above-mentioned black ink composition, wherein, based on 100wt% of the black disperse dye composition, the disperse blue 360 ​​is 25wt%, the disperse blue 183 is 25wt%, the disperse brown 27 is 30wt%, the disperse yellow 54 is 15wt%, and the disperse red 60 is 5wt%.

[0016] According to the above-mentioned black ink composition, wherein, based on 100 wt% of the black ink composition, the black disperse dye composition is 10 wt% and the auxiliary agent is 90 wt%.

[0017] According to the above-mentioned black ink composition, the auxiliary agent is composed of the solvent and the adhesive, the solvent is isobutanol, the adhesive is polyvinyl butyral, and based on 100 wt% of the auxiliary agent, the isobutanol is 90 wt% and the polyvinyl butyral is 10 wt%.

Implementation Method

[0019] In order to make it easier for examiners to understand the technical content, features and effects of the present invention, the present invention will be more clearly explained in conjunction with the examples and comparative examples, but the present invention is not limited to these examples.

[0020] < Examples 1-13 and Comparative Examples 1-11>

[0021] Preparation of black ink composition

[0022] The black ink compositions of Examples 1-13 and Comparative Examples 1-10 were prepared according to the components and weight percentages (wt%) shown in Table 1 below, and the following steps:

[0023] Step (1): Prepare the corresponding component materials according to the corresponding components and weight percentages. The excipients are composed of solvents and binders. The solvent is isobutanol, and the binder is polyvinyl butyral. Assuming the excipients are 100 wt%, isobutanol is 90 wt%, and polyvinyl butyral is 10 wt%. Among them, Disperse Blue 360 ​​is purchased from Yiling Co., Ltd., model Navacron Blue BB Crude; Disperse Blue 183 is purchased from Yiling Co., Ltd., model Navacron Blue RSE Crude; Disperse Brown 27 is purchased from Yiling Co., Ltd., model Navacron Brown Crude; Disperse Yellow 54 is purchased from Yiling Co., Ltd., model Navacron Yellow GE Crude; Disperse Red 60 is purchased from Yiling Co., Ltd., model Navacron Red BF crude; isobutanol is purchased from Congzhong Enterprise Co., Ltd.; and polyvinyl butyral is purchased from Changchun Petrochemical Co., Ltd., model B08HX.

[0024] Step (2): The prepared components are put into a planetary mixer and mixed to form a mixture. Then, the mixture is ground into a liquid black ink composition with a particle size of 150 micrometers to 200 micrometers using a sand mill to form the black ink compositions of Examples 1 to 13 and Comparative Examples 1 to 10.

[0025] Table 1: Composition and proportions of black ink compositions. Black ink composition Black disperse dye composition (wt%) Excipients (wt%) A(wt%) C(wt%) Disperse Blue 360 Disperse Blue 183 Disperse Brown 27 Disperse Yellow 54 Disperse Red 60 Subtotal (wt%) Example 1 20 30 30 15 5 100 10 90 Example 2 30 20 30 15 5 100 10 90 Example 3 25 25 30 15 5 100 10 90 Example 4 20 30 30 15 5 100 10 90 Example 5 25 30 25 15 5 100 10 90 Example 6 25 20 35 15 5 100 10 90 Example 7 30 25 30 10 5 100 10 90 Example 8 20 25 30 20 5 100 10 90 Example 9 25 25 35 14 1 100 10 90 Example 10 25 25 25 15 10 100 10 90 Example 11 25 25 30 15 5 100 30 70 Example 12 25 25 30 15 5 100 1 99 Example 13 25 25 30 15 5 100 0.5 99.5 Comparative Example 1 15 30 35 15 5 100 10 90 Comparative Example 2 35 20 25 15 5 100 10 90 Comparative Example 3 30 15 35 15 5 100 10 90 Comparative Example 4 20 35 twenty five 15 5 100 10 90 Comparative Example 5 30 30 20 15 5 100 10 90 Comparative Example 6 20 20 40 15 5 100 10 90 Comparative Example 7 30 30 30 5 5 100 10 90 Comparative Example 8 20 20 twenty five twenty five 10 100 10 90 Comparative Example 9 30 30 29 10.5 0.5 100 10 90 Comparative Example 10 20 20 35 10 15 100 10 90 Comparative Example 11 D A: The proportion of each disperse dye in the black disperse dye composition, calculated as 100wt%; B: Subtotal: The total of each disperse dye in the black disperse dye composition; C: The proportion of the black disperse dye composition in the black ink composition, calculated as 100wt%; D: BLACK, a black water-based ink produced by Shuangjian Chemical Co., Ltd., which is used as the standard sample ink for subsequent testing.

[0026] <Application Examples 1A~10C and Comparative Examples 1A~11C>

[0027] Preparation of heat transfer fabric A

[0028] The heat transfer fabric A of Application Examples 1A-10C and Application Comparative Examples 1A-11C was prepared by the following steps:

[0029] Step (a): The black ink composition of the example or comparative example is coated onto commercially available transfer paper (purchased from Hezhong Paper Co., Ltd., model 45G) using a Bar NO 1 coating stick manufactured by Guangbo Industrial Co., Ltd. to form a rectangular pattern with a length of 10 cm, a width of 5 cm and a wet film thickness of 6 micrometers (μm). The transfer paper is then placed at room temperature (25°C) for 1 minute to dry, forming a patterned paper with a dye layer for later use.

[0030] Step (b): The pattern paper formed in step (a) is brought into contact with the polyester fiber fabric with its dye layer, and a heat transfer process is carried out with a hot press at a pressure of 50 psi and a standard operating temperature of 210°C for different contact times (operating time) to form the corresponding heat transfer fabric A of the application examples and application comparison examples, as shown in Table 2 below.

[0031] Table 2: Heat transfer fabric A Black ink composition seconds of contact Color difference value DE Strength (%) Sublimation durability Operation time factor assessment results Application Example 1A Example 1 15 0.17(O) 97.6 (O) 4(O) O Application Example 1B Example 1 twenty one 0.16(O) 99.7 (O) 4(O) O Application Example 1C Example 1 27 0.28(O) 100.9(O) 4(O) O Application Example 2A Example 2 15 0.65(O) 97.5 (O) 4(O) O Application Example 2B Example 2 twenty one 0.15(O) 102.1(O) 4(O) O Application Example 2C Example 2 27 0.17(O) 102(O) 4(O) O Application Example 3A Example 3 15 0.28(O) 97.8 (O) 4(O) O Application Example 3B Example 3 twenty one 0.33(O) 101(O) 4(O) O Application Example 3C Example 3 27 0.21(O) 102(O) 4(O) O Application Example 4A Example 4 15 0.56(O) 97.2(O) 4(O) O Application Example 4B Example 4 twenty one 0.21(O) 102(O) 4(O) O Application Example 4C Example 4 27 0.40(O) 103(O) 3.5(O) O Application Example 5A Example 5 15 0.16(O) 98.5 (O) 4(O) O Application Example 5B Example 5 twenty one 0.63(O) 102.8(O) 4(O) O Application Example 5C Example 5 27 0.67(O) 103(O) 3.5(O) O Application Example 6A Example 6 15 0.46(O) 97.2(O) 4(O) O Application Example 6B Example 6 twenty one 0.63(O) 101.6(O) 4(O) O Application Example 6C Example 6 27 0.67(O) 103(O) 4(O) O Application Example 7A Example 7 15 0.46(O) 98.5 (O) 4(O) O Application Example 7B Example 7 twenty one 0.16(O) 102.5(O) 4(O) O Application Example 7C Example 7 27 0.70(O) 103(O) 4(O) O Application Example 8A Example 8 15 0.26(O) 98.6 (O) 4(O) O Application Example 8B Example 8 twenty one 0.33(O) 102(O) 3.5(O) O Application Example 8C Example 8 27 0.72(O) 103(O) 3.5(O) O Application Example 9A Example 9 15 0.76(O) 99.7 (O) 4(O) O Application Example 9B Example 9 twenty one 0.17(O) 99.6 (O) 4(O) O Application Example 9C Example 9 27 0.43(O) 102.9(O) 4(O) O Application Example 10A Example 10 15 0.76(O) 99.7 (O) 4(O) O Application Example 10B Example 10 twenty one 0.17(O) 101(O) 4(O) O Application Example 10C Example 10 27 0.43(O) 101.8(O) 3.5(O) O Application Comparison Example 1A Comparative Example 1 15 0.75(O) 84(X) 4(O) X Application Comparison Example 1B Comparative Example 1 twenty one 0.70(O) 96(X) 4(O) X Application Comparison Example 1C Comparative Example 1 27 0.85(X) 97(O) 4(O) X Application Comparison Example 2A Comparative Example 2 15 0.80(X) 95(X) 3.5(O) X Application Comparison Example 2B Comparative Example 2 twenty one 0.75(O) 104(X) 3.5(O) X Comparative Application Example 2C Comparative Example 2 27 0.65(O) 105(X) 3(X) X Application Comparison Example 3A Comparative Example 3 15 0.55(O) 96(X) 3.5(O) X Comparative Application Example 3B Comparative Example 3 twenty one 0.65(O) 103.5(X) 3.5(O) X Comparative Application Example 3C Comparative Example 3 27 0.75(O) 106(X) 3(X) X Application Comparison Example 4A Comparative Example 4 15 0.78(O) 96(X) 3.5(O) X Application Comparison Example 4B Comparative Example 4 twenty one 0.85(X) 104(X) 3.5(O) X Comparative Application Example 4C Comparative Example 4 27 0.90(X) 106.5(X) 3(X) X Comparative Application Example 5A Comparative Example 5 15 0.55(O) 96(X) 3.5(O) X Application Comparative Example 5B Comparative Example 5 twenty one 0.75(O) 103.5(X) 3.5(O) X Comparative Application Example 5C Comparative Example 5 27 0.90(X) 105.5(X) 3(X) X Application Comparison Example 6A Comparative Example 6 15 0.45(O) 94(X) 3(X) X Comparative Application Example 6B Comparative Example 6 twenty one 0.65(O) 104(X) 3(X) X Comparative Application Example 6C Comparative Example 6 27 0.73(O) 106(X) 2.5(X) X Comparative Application Example 7A Comparative Example 7 15 0.65(O) 83(X) 3(X) X Comparative Application Example 7B Comparative Example 7 twenty one 0.75(O) 85(X) 3(X) X Comparative Application Example 7C Comparative Example 7 27 0.83(X) 97(O) 2.5(X) X Comparative Application Example 8A Comparative Example 8 15 0.63(O) 93(X) 3(X) X Application Comparison Example 8B Comparative Example 8 twenty one 0.84(X) 95(X) 2.5(X) X Comparative Application Example 8C Comparative Example 8 27 0.92(X) 97(O) 2.5(X) X Comparative Application Example 9A Comparative Example 9 15 0.70(O) 93.2(X) 3.5(O) X Application Comparison Example 9B Comparative Example 9 twenty one 0.85(X) 95.5(X) 3(X) X Application Comparison Example 9C Comparative Example 9 27 1.15(X) 98.3(O) 3(X) X Application Comparison Example 10A Comparative Example 10 15 0.75(O) 96.5(X) 3.5(O) X Application Comparative Example 10B Comparative Example 10 twenty one 0.95(X) 99.6 (O) 3(X) X Comparative Application Example 10C Comparative Example 10 27 1.20(X) 103(O) 2.5(X) X Comparative Application Example 11A Comparative Example 11 15 0.63(O) 96.7(X) 3.5(O) X Comparative Application Example 11D Comparative Example 11 19 0.43(O) 100.7(O) 3.5(O) O Application Comparative Example 11B Comparative Example 11 twenty one 0(STD) 100 (STD) 3.5 (STD) STD Comparative Application Example 11E Comparative Example 11 twenty three 0.68(O) 102.8(O) 3.5(O) O Application Comparison Example 11C Comparative Example 11 27 0.82(X) 103.6(X) 2.5(X) X STD: Indicates standard sample fabric, which serves as the test standard for other application examples and comparative examples.

[0032] <Quality Measurement of Heat Transfer Fabric A (Part 1): Evaluation of Operation Time Factor>

[0033] [Color Difference Value DE Test]

[0034] The color difference values ​​DE were measured by comparing each application example and application comparison example with the standard sample fabric using the Gretag Macbeth Color-Eye 2180UV / 2180 and the CIE LAB color difference formula, with Comparative Example 11B as the standard sample fabric. If the color difference value DE is less than 0.8, it means that the heat transfer fabric A of the application example and application comparison example and the corresponding black ink composition of the example and comparison example are within the acceptable range, and are therefore excellent and marked as "O"; conversely, if the color difference value DE is equal to or greater than 0.8, it means that the heat transfer fabric A of the application example and application comparison example and the corresponding black ink composition of the example and comparison example are not within the acceptable range, and are therefore poor and marked as "X".

[0035] [Strength Test]

[0036] The values ​​of each intensity were measured by comparing each application example, application comparison example, and standard sample fabric with the Gretag Macbeth Color-Eye 2180UV / 2180 using the Kubelka-Munk Theory and the application comparison example 11B as the standard sample fabric. If the intensity value is within 100%±3% (i.e., between 97% and 103%), it indicates that the heat transfer fabric A of the application example and application comparison example and the corresponding black ink composition of the example and comparison example are within the acceptable range, and are therefore excellent and marked as "O"; conversely, if the intensity value is outside 100%±3% (i.e., less than 97% or greater than 103%), it indicates that the heat transfer fabric A of the application example and application comparison example and the corresponding black ink composition of the example and comparison example are not within the acceptable range, and are therefore poor and marked as "X".

[0037] [Sublimation Fastness Test]

[0038] The sublimation fastness tester, model 333-III / 333-V, manufactured by Shin-Jui Development Technology Co., Ltd., was used to conduct the test according to AATCC 117 method. Using Comparative Example 11B as the standard sample fabric, if the measured grade is greater than 3 and equal to or greater than the grade measured for the standard sample fabric, it indicates that the heat transfer fabric A of the application example and the application comparative example, and the corresponding black ink compositions of the examples and comparative examples, are within the acceptable range, and are therefore excellent and marked "O"; conversely, if the measured grade is less than or equal to 3 or less than the grade measured for the standard sample fabric, it indicates that the heat transfer fabric A of the application example and the application comparative example, and the corresponding black ink compositions of the examples and comparative examples, are not within the acceptable range, and are therefore poor and marked "X".

[0039] [Evaluation Results of Operation Time Factor]

[0040] If each of the above color difference value DE test, strength test and sublimation fastness test is "O", then the operation time factor evaluation result is qualified and marked as "O", which means that the heat transfer fabric A of the application example and the application comparative example and the corresponding black ink composition of the example and the comparative example can make the operation time range greater than the standard operation time of 21 seconds ± 2 seconds, and reach 21 seconds ± 6 seconds (i.e. 15~27 seconds) at the standard operation temperature of 210°C; if any one is "X", then the operation time factor evaluation result is unqualified and marked as "X", which means that the heat transfer fabric A of the application example and the application comparative example and the corresponding black ink composition of the example and the comparative example cannot increase the operation time range to 21 seconds ± 6 seconds at the standard operation temperature of 210°C. It should be noted that in Comparative Examples 11A-11E, the contact times of Comparative Examples 11D and 11E were 19 seconds and 23 seconds, respectively, which is within ±2 seconds of the standard operating time of 21 seconds (Comparative Example 11B), and their evaluation results were qualified and marked as "O". However, when the contact times of Comparative Examples 11A and 11C were 15 seconds and 27 seconds, respectively, which is within ±6 seconds of the standard operating time of 21 seconds (Comparative Example 11B), their evaluation results were unqualified and marked as "X". Therefore, the heat transfer fabric A made with the standard sample ink is only applicable to ±2 seconds of the standard operating time of 21 seconds, and cannot reach ±6 seconds of 21 seconds. However, the heat transfer fabric A of Application Examples 1A-10C made with the black ink composition of the present invention in Examples 1-10 have qualified evaluation results and are marked as "O", so they are all applicable to ±6 seconds of the standard operating time of 21 seconds.

[0041] <Application Examples 1A'~10C' and Comparative Application Examples 1A'~11C'>

[0042] Preparation of heat transfer fabric A'

[0043] The heat transfer fabric A' of Application Examples 1A'~10C' and Application Comparative Examples 1A'~11C' was prepared by the following steps:

[0044] Step (a): Same as step (a) above.

[0045] Step (b'): The pattern paper formed in step (a) is brought into contact with the polyester fiber fabric with its dye layer, and a heat transfer process is carried out with a hot press at a pressure of 50 psi and a standard operating time of 21 seconds at different contact temperatures (operating temperatures) to form the corresponding heat transfer fabric A' of the application examples and application comparison examples, as shown in Table 2' below.

[0046] Table 2': Heat transfer fabric A' Black ink composition Contact temperature ℃ Color difference value DE Strength Sublimation durability Operating temperature factor evaluation results Application Example 1A' Example 1 204 0.20(O) 98.2(O) 4(O) O Application Example 1B' Example 1 210 0.15(O) 99.5% (O) 4(O) O Application Example 1C' Example 1 216 0.40(O) 101(O) 3.5(O) O Application Example 2A' Example 2 204 0.54(O) 97.2(O) 4(O) O Application Example 2B' Example 2 210 0.21(O) 100.5(O) 4(O) O Application Example 2C' Example 2 216 0.32(O) 102.1(O) 4(O) O Application Example 3A' Example 3 204 0.27(O) 98.7(O) 4(O) O Application Example 3B' Example 3 210 0.30(O) 100.8(O) 4(O) O Application Example 3C' Example 3 216 0.41(O) 102.8(O) 3.5(O) O Application Example 4A' Example 4 204 0.45(O) 97.3(O) 4(O) O Application Example 4B' Example 4 210 0.25(O) 101.1(O) 4(O) O Application Example 4C' Example 4 216 0.43(O) 98.8(O) 3.5(O) O Application Example 5A' Example 5 204 0.18(O) 101.9(O) 4(O) O Application Example 5B' Example 5 210 0.63(O) 101.8(O) 4(O) O Application Example 5C' Example 5 216 0.72(O) 102.3(O) 4(O) O Application Example 6A' Example 6 204 0.58(O) 98.3(O) 4(O) O Application Example 6B' Example 6 210 0.60(O) 100.8(O) 4(O) O Application Example 6C' Example 6 216 0.71(O) 102.8(O) 4(O) O Application Example 7A' Example 7 204 0.48(O) 99.7 (O) 4(O) O Application Example 7B' Example 7 210 0.25(O) 102.1(O) 4(O) O Application Example 7C' Example 7 216 0.70(O) 103.0(O) 4(O) O Application Example 8A' Example 8 204 0.28(O) 98.8(O) 4(O) O Application Example 8B' Example 8 210 0.32(O) 101.7(O) 4(O) O Application Example 8C' Example 8 216 0.62(O) 102.7(O) 3.5(O) O Application Example 9A' Example 9 204 0.24(O) 97.7(O) 4(O) O Application Example 9B' Example 9 210 0.16(O) 100.6(O) 4(O) O Application Example 9C' Example 9 216 0.44(O) 101.9(O) 3.5(O) O Application Example 10A' Example 10 204 0.72(O) 98.9(O) 4(O) O Application Example 10B' Example 10 210 0.35(O) 100.3(O) 4(O) O Application Example 10C' Example 10 216 0.56(O) 102.1(O) 3.5(O) O Application Comparison Example 1A' Comparative Example 1 204 0.82(X) 93.2(X) 4(O) X Application Comparative Example 1B' Comparative Example 1 210 0.75(O) 95(X) 4(O) X Application Comparison Example 1C' Comparative Example 1 216 0.85(X) 97.2(O) 4(O) X Application Comparison Example 2A' Comparative Example 2 204 0.88(X) 96.3(X) 4(O) X Application Comparison Example 2B' Comparative Example 2 210 0.78(O) 96.5(X) 4(O) X Application Comparison Example 2C' Comparative Example 2 216 0.90(X) 102.3(O) 3.5(O) X Application Comparative Example 3A' Comparative Example 3 204 0.75(O) 96.5(X) 4(O) X Application Comparative Example 3B' Comparative Example 3 210 0.60(O) 103.2(X) 4(O) X Comparative Application 3C' Comparative Example 3 216 0.85(X) 104.3(X) 3.5(O) X Application Comparative Example 4A' Comparative Example 4 204 0.88(X) 101.2(O) 4(O) X Application Comparative Example 4B' Comparative Example 4 210 0.82(X) 103.4(X) 3.5(O) X Application Comparative Example 4C' Comparative Example 4 216 0.90(X) 105.3(X) 3.5(O) X Application Comparative Example 5A' Comparative Example 5 204 0.90(X) 96.3(X) 4(O) X Application Comparative Example 5B' Comparative Example 5 210 0.72(O) 103.1(X) 3.5(O) X Comparative Application Example 5C' Comparative Example 5 216 0.85(X) 104.2(X) 3.5(O) X Application Comparative Example 6A' Comparative Example 6 204 0.62(O) 95.2(X) 3.5(O) X Application Comparative Example 6B' Comparative Example 6 210 0.55(O) 103.6(X) 3(X) X Comparative Application Example 6C' Comparative Example 6 216 0.77(O) 105.3(X) 2.5(X) X Application Comparative Example 7A' Comparative Example 7 204 0.87(X) 93.2(X) 4(O) X Application Comparative Example 7B' Comparative Example 7 210 0.70(O) 94(X) 3(X) X Application Comparative Example 7C' Comparative Example 7 216 0.93(X) 97.3(O) 3(X) X Application Comparison Example 8A' Comparative Example 8 204 0.65(O) 93.2(X) 3.5(O) X Application Comparison Example 8B' Comparative Example 8 210 0.78(O) 94.3(X) 3.5(O) X Comparative Application Example 8C' Comparative Example 8 216 0.95(X) 96.8(X) 3(X) X Application Comparison Example 9A' Comparative Example 9 204 0.78(O) 93.3(X) 3.5(O) X Application Comparative Example 9B' Comparative Example 9 210 0.85(X) 95.1(X) 3.5(O) X Comparative Application Example 9C' Comparative Example 9 216 1.02(X) 97.6 (O) 3(X) X Application Comparison Example 10A' Comparative Example 10 204 0.81(X) 97.6 (O) 3.5(O) X Application Comparative Example 10B' Comparative Example 10 210 0.91(X) 98.6 (O) 3.5(O) X Application Comparative Example 10C' Comparative Example 10 216 1.22(X) 103.6(X) 2.5(X) X Application Comparison Example 11A' Comparative Example 11 204 0.53(O) 96.5(X) 3.5(O) X Comparative Application Example 11D' Comparative Example 11 208 0.28(O) 99.5% (O) 3.5(O) (O) Application Comparative Example 11B' Comparative Example 11 210 0(STD) 100 (STD) 3.5 (STD) STD Application Comparative Example 11E' Comparative Example 11 212 0.53(O) 100.6(O) 3.5(O) (O) Application Comparative Example 11C' Comparative Example 11 216 0.83(X) 103.6(X) 3(X) X STD: Indicates standard sample fabric, which serves as the test standard for other application examples and comparative examples.

[0047] <Quality Measurement of Heat Transfer Fabric A' (Part Two): Evaluation of Operating Temperature Factor>

[0048] The color difference value DE test, strength test and sublimation fastness test are similar to the standards and methods of the aforementioned quality measurement (I) of heat transfer fabric A, so they will not be repeated here.

[0049] [Evaluation Results of Operating Temperature Factor]

[0050] If each of the above color difference value DE test, strength test and sublimation fastness test is "O", then the operating temperature factor evaluation result is qualified and marked as "O", which means that the heat transfer fabric A of the application example and the application comparative example and the corresponding black ink composition of the example and the comparative example can make the operating temperature range greater than ±2°C of the standard operating temperature of 210°C, and reach ±6°C of 210°C (i.e. 204~216°C) under the standard operating time of 21 seconds; if any one is "X", then the operating temperature factor evaluation result is unqualified and marked as "X", which means that the heat transfer fabric A of the application example and the application comparative example and the corresponding black ink composition of the example and the comparative example cannot increase the operating temperature range to ±6°C of 210°C under the standard operating time of 21 seconds. It should be noted that in Comparative Examples 11A' to 11E', the contact temperatures of Comparative Examples 11D' and 11E' were 208°C and 212°C, respectively, which is within ±2°C of the standard operating temperature of 210°C (Comparative Example 11B'). Their evaluation results were qualified and marked as "O". However, when the contact temperatures of Comparative Examples 11A' and 11C' were 204°C and 216°C, respectively, which is within ±6°C of the standard operating temperature of 210°C (Comparative Example 11B'), their evaluation results were unqualified and marked as "X". Therefore, the heat transfer fabric A' made with the standard sample ink is only suitable for the standard operating temperature of 210°C ±2°C, and cannot reach 210°C ±6°C; however, the heat transfer fabric A' made with the black ink composition of the present invention in Examples 1 to 10 has a qualified evaluation result and is marked as "O", so it is suitable for the standard operating temperature of 210°C ±6°C.

[0051] <Quality Assessment of Heat Transfer Fabrics A and A': Overall Evaluation of Handling Time and Temperature Factors>

[0052] The quality measurement (I) of the aforementioned heat transfer fabric A and the quality measurement (II) of heat transfer fabric A' are summarized in Table 3 below.

[0053] Table 3 Heat transfer fabric A / A' Black ink composition Operation time factor assessment results Operating temperature factor evaluation results Overall Assessment Results Application Example 1A / 1A' Example 1 O O O Application Example 1B / 1B' Example 1 O O O Application Example 1C / 1C' Example 1 O O O Application Example 2A / 2A' Example 2 O O O Application Example 2B / 2B' Example 2 O O O Application Example 2C / 2C' Example 2 O O O Application Example 3A / 3A' Example 3 O O O Application Example 3B / 3B' Example 3 O O O Application Example 3C / 3C' Example 3 O O O Application Example 4A / 4A' Example 4 O O O Application Example 4B / 4B' Example 4 O O O Application Example 4C / 4C' Example 4 O O O Application Example 5A / 5A' Example 5 O O O Application Example 5B / 5B' Example 5 O O O Application Example 5C / 5C' Example 5 O O O Application Example 6A / 6A' Example 6 O O O Application Example 6B / 6B' Example 6 O O O Application Example 6C / 6C' Example 6 O O O Application Example 7A / 7A' Example 7 O O O Application Example 7B / 7B' Example 7 O O O Application Example 7C / 7C' Example 7 O O O Application Example 8A / 8A' Example 8 O O O Application Example 8B / 8B' Example 8 O O O Application Example 8C / 8C' Example 8 O O O Application Example 9A / 9A' Example 9 O O O Application Example 9B / 9B' Example 9 O O O Application Example 9C / 9C' Example 9 O O O Application Example 10A / 10A' Example 10 O O O Application Example 10B / 10B' Example 10 O O O Application Example 10C / 10C' Example 10 O O O Application Comparison Example 1A / 1A' Comparative Example 1 X X X Application Comparison Example 1B / 1B' Comparative Example 1 X X X Application Comparison Example 1C / 1C' Comparative Example 1 X X X Comparative application example 2A / 2A' Comparative Example 2 X X X Comparative application example 2B / 2B' Comparative Example 2 X X X Comparative application example 2C / 2C' Comparative Example 2 X X X Comparative application example 3A / 3A' Comparative Example 3 X X X Comparative example 3B / 3B' Comparative Example 3 X X X Comparative Application Example 3C / 3C' Comparative Example 3 X X X Comparative application example 4A / 4A' Comparative Example 4 X X X Application Comparison Example 4B / 4B' Comparative Example 4 X X X Comparative application example 4C / 4C' Comparative Example 4 X X X Comparative application example 5A / 5A' Comparative Example 5 X X X Comparative example 5B / 5B' Comparative Example 5 X X X Comparative application example 5C / 5C' Comparative Example 5 X X X Comparative application example 6A / 6A' Comparative Example 6 X X X Comparative example 6B / 6B' Comparative Example 6 X X X Comparative application example 6C / 6C' Comparative Example 6 X X X Comparative application example 7A / 7A' Comparative Example 7 X X X Comparative Application Example 7B / 7B' Comparative Example 7 X X X Comparative application example 7C / 7C' Comparative Example 7 X X X Comparative Application Example 8A / 8A' Comparative Example 8 X X X Comparative application example 8B / 8B' Comparative Example 8 X X X Application Comparison Example 8C / 8C' Comparative Example 8 X X X Comparative Application Example 9A / 9A' Comparative Example 9 X X X Comparative Application Example 9B / 9B' Comparative Example 9 X X X Comparative Application Example 9C / 9C' Comparative Example 9 X X X Application Comparison Example 10A / 10A' Comparative Example 10 X X X Application Comparison Example 10B / 10B' Comparative Example 10 X X X Application Comparison Example 10C / 10C' Comparative Example 10 X X X Comparative application example 11A / 11A' Comparative Example 11 X X X Comparative Application Example 11B / 11B' Comparative Example 11 STD STD STD Comparative application example 11C / 11C' Comparative Example 11 X X X

[0054] The overall evaluation result in Table 3 above means that if both the evaluation result of the operation time factor and the evaluation result of the operation temperature factor are "O", then the overall evaluation is qualified and marked as "O"; if either one is "X", then the overall evaluation is unqualified and marked as "X".

[0055] As can be seen from Tables 1, 2, and 3, when heat transfer fabrics prepared using the black ink compositions of Examples 1-10 are used, the operating time range can be greater than ±2 seconds of the standard operating time of 21 seconds, reaching ±6 seconds (i.e., 15-27 seconds), and the operating temperature range can be greater than ±2 degrees Celsius of the standard operating temperature of 210 degrees Celsius, reaching ±6 degrees Celsius (i.e., 204-216 degrees Celsius), reaching 210 degrees Celsius (i.e., 204-216 degrees Celsius). Furthermore, the prepared heat transfer fabrics, compared to the standard sample fabrics, all meet the following requirements: color difference value DE is less than 0.8, strength value is within 100% ±3%, and sublimation fastness grade is greater than 3 and equal to or greater than the grade measured for the standard sample fabric. Therefore, the black ink compositions of Examples 1-10 meet the objectives of this invention.

[0056] Based on the above results, it can be seen from the comparative examples in Table 1 that, taking the black disperse dye composition as 100 wt%, when the Disperse Blue 360 ​​is less than 20 wt% or more than 30 wt%, the Disperse Blue 183 is less than 20 wt% or more than 30 wt%, the Disperse Brown 27 (25 wt% to 35 wt%) is less than 25 wt% or more than 35 wt%, the Disperse Yellow is less than 10 wt% or more than 20 wt%, or the Disperse Red 60 is less than 1 wt% or more than 10 wt%, the black ink composition prepared therefrom and the heat transfer fabric subsequently prepared cannot simultaneously meet the requirements of a color difference value DE of less than 0.8, a strength value within 100% ± 3%, and a sublimation fastness grade greater than 3 and equal to or greater than the grade measured by the standard sample fabric. Therefore, the comparative examples cannot meet the requirements of the present invention.

[0057] It should be noted that after similar experiments as described above, Examples 11-13 also yielded satisfactory results. For the sake of brevity, the experimental results will not be listed or elaborated upon. Therefore, the black ink composition with 100 wt% black ink composition, 0.5 wt% to 30 wt% black disperse dye composition, and the remainder being excipients meets the purpose of this invention.

[0058] In summary, the present invention is a black ink composition prepared by a dispersion dye composition composed of a mixture of various specific dispersion dyes. When preparing heat transfer fabric, the operating time range can be greater than the traditional ±2 seconds to ±6 seconds at the standard operating temperature, and the operating temperature range can be greater than the traditional ±2℃ to ±6℃ at the standard operating time. Moreover, the prepared heat transfer fabric meets the requirements of a color difference value DE of less than 0.8, a strength value within 100% ±3%, and a sublimation fastness grade greater than 3 and equal to or greater than the grade measured by the standard sample fabric, without changing the mechanism of the traditional heating roller, but by combining specific dispersion dyes in a certain proportion, the permissible error of the working conditions of the heat sublimation transfer process can be increased.

[0059] However, the above description is only an embodiment of the present invention and should not be construed as limiting the scope of the present invention. Any simple equivalent changes and modifications made in accordance with the scope of the patent application and the contents of the patent specification shall still fall within the scope of the patent of the present invention. [Simplified Explanation of the Diagram]

[0018] (None).

Claims

1. A black ink composition comprising at least a black dispersed dye composition and an auxiliary agent, wherein, based on 100 wt% of the black ink composition, the black dispersed dye composition comprises 0.5 wt% to 30 wt%, and the auxiliary agent is the balance; wherein, Based on 100wt% of the black disperse dye composition, the black disperse dye composition comprises at least: 20wt%~30wt% of Disperse Blue 360 ​​(CAS NO. 70693-64-0), 20wt%~30wt% of Disperse Blue 183 (CAS NO. 2309-94-6), 25wt%~35wt% of Disperse Brown 27 (CAS NO. 94945-21-8), 10wt%~20wt% of Disperse Yellow 54 (CAS NO. 12223-85-7), and 1wt%~10wt% of Disperse Red 60 (CAS NO. 12223-37-9); and the adjuvant comprises at least one solvent.

2. The black ink composition as claimed in claim 1, wherein, This black ink composition is used in a sublimation transfer process for textiles.

3. The black ink composition as claimed in claim 2, wherein, The solvent is an inorganic solvent, an organic solvent, or a combination of an inorganic solvent and an organic solvent; and the inorganic solvent is water, and the organic solvent is selected from at least one of the group consisting of methanol and isobutyl alcohol (IBA) or a combination thereof.

4. The black ink composition as claimed in claim 3, wherein, The excipients also include dispersants and / or binders.

5. The black ink composition as claimed in claim 4, wherein, The adhesive is polyvinyl butyral (PVB).

6. The black ink composition as claimed in claim 5, wherein, Based on 100 wt% of the black disperse dye composition, the disperse blue 360 ​​is 25 wt%, the disperse blue 183 is 25 wt%, the disperse brown 27 is 30 wt%, the disperse yellow 54 is 15 wt%, and the disperse red 60 is 5 wt%.

7. The black ink composition as claimed in claim 6, wherein, Based on 100 wt% of the black ink composition, the black disperse dye composition is 10 wt%, and the auxiliary is 90 wt%.

8. The black ink composition as claimed in claim 7, wherein, The excipient is composed of the solvent and the adhesive. The solvent is isobutanol, and the adhesive is polyvinyl butyral. Assuming the excipient is 100 wt%, the isobutanol is 90 wt%, and the polyvinyl butyral is 10 wt%.