Thermochromic mask base cloth

Abstract

The invention discloses a thermochromic mask base cloth which comprises a mask base cloth body, and a thermochromic pattern is attached to the mask base cloth body. The mask base cloth is made of pearl fibers, tencel or copper ammonia fibers. The thermochromic pattern is obtained by combining thermochromic pigment and printing ink on the mask base cloth and printing the thermochromic pigment and the printing ink on the mask base cloth; the thermochromic pigment is a microencapsulated reversible thermochromic pigment prepared from an electron transfer type organic compound system. A thermochromic pattern is printed on the mask base cloth body, and the printing mode is intaglio printing or flexographic printing. The thermochromic mask base cloth disclosed by the invention has the function of indicating the use time of the mask for a user.

Description

Technical Field

[0001] The invention belongs to the technical field of membrane cloth printing, and in particular relates to a thermochromic facial mask base cloth. Background Art

[0002] Facial masks are a very important skin care product in people's lives. With the development of aesthetics and needs, people are pursuing the skin care effects of facial masks while also gradually beginning to pay attention to the aesthetics of facial masks. As a result, more and more facial masks with printed patterns appear on the market, but these patterns have no other use except for beauty.

[0003] Generally speaking, facial masks are used for about 15-30 minutes, but people often choose to do other things after applying the mask and forget the usage time of the mask. Excessive usage time may cause the nutrients in the mask to stay on the skin for too long, causing bacterial growth, and may also affect the skin's normal absorption of nutrients in the mask, leading to skin allergies or dryness and other problems. The prior art already has a method of adding temperature-sensitive color-changing ink to the mask solution to make the mask have a temperature-sensitive color-changing function to remind people of the mask usage time, but this method may also cause the temperature-sensitive color-changing ink or other color-changing ingredients to directly contact the skin, thereby causing skin allergies.

[0004] When printing ordinary patterns that cannot be changed color on the mask base fabric, screen printing or digital printing is usually used. However, the finished fabric produced by screen printing is hard, not smooth, and the color is uneven. Digital printing is easy to clog the nozzle due to the added color powder, ink or color paste particles, and the operation process is unstable, which is easy to produce defective products. Summary of the invention

[0005] The present invention aims at the above technical problems. By printing a thermochromic pattern on a mask base fabric, the mask with the pattern has the function of indicating the mask usage time. The mask base fabric with the thermochromic pattern can also be used in combination with a variety of nutrient solutions to produce a variety of masks with different functions. The pattern with the thermochromic function is printed on the mask base fabric by gravure printing or flexographic printing, so that the printed pattern is clear and has the thermochromic function. Therefore, the purpose of the present invention is to provide a thermochromic mask base fabric.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] As a first aspect of the present invention, a thermochromic facial mask base fabric comprises a facial mask base fabric body, onto which a thermochromic pattern is attached.

[0008] According to the present invention, the facial mask base fabric is a facial mask base fabric made of pearl fiber, tencel or cuprammonia fiber.

[0009] According to the present invention, the thermochromic pattern is obtained by printing a thermochromic pigment in combination with ink on a mask base fabric.

[0010] According to the present invention, the thermochromic pigment is a microencapsulated reversible thermochromic pigment prepared from an electron transfer type organic compound system.

[0011] According to the present invention, the microencapsulated reversible thermochromic pigment comprises a nanoshell made of acrylic resin.

[0012] According to the present invention, a thermochromic pattern is printed on the facial mask base fabric body by gravure printing or flexographic printing.

[0013] Specifically, the gravure printing comprises the following steps:

[0014] (1) Loading the base fabric onto the machine: Load the unpacked mask base fabric roll into the roll-up unit at the front end of the printing equipment;

[0015] (2) Coating machine: inject the evenly mixed printing coating into the slurry tank;

[0016] (3) Template loading: The customized pattern roller is loaded into the roller of the machine to perform a simulated detection of the rotation of the parts;

[0017] (4) Start printing: The cloth roll slowly enters the pulp tank to start pattern printing;

[0018] (5) Drying, rewinding and packaging.

[0019] Specifically, the flexographic printing comprises the following steps:

[0020] (1) Loading the base fabric onto the machine: Load the unpacked mask base fabric roll into the roll-up unit at the front end of the printing equipment;

[0021] (2) Coating machine: inject the evenly mixed printing coating into the slurry tank;

[0022] (3) Template loading: Attach the silicone plate to the printing cylinder and perform a simulated test of part rotation;

[0023] (4) Start printing: The cloth roll slowly enters the pulp tank to start pattern printing;

[0024] (5) Drying, rewinding and packaging.

[0025] According to the present invention, the printing coating in step (3) is prepared by mixing temperature-sensitive powder, adhesive, water, catalyst, cross-linking agent and color paste.

[0026] According to the present invention, in the printing coating, the mass fraction ratio of each component is as follows: temperature-sensitive powder 5%-10%, adhesive 35%-50%, catalyst 6%, crosslinking agent 4%, color paste 25%, and the rest is water.

[0027] Beneficial effects:

[0028] The thermochromic pattern printed on the mask base fabric by combining reversible thermochromic powder and ordinary ink is clear, and the mask base fabric not only looks beautiful but also has the function of indicating the mask usage time, thereby helping users understand the mask usage time and usage effect. The thermochromic pattern is printed by gravure printing or flexographic printing, and the printed image has good consistency, high color saturation, and more obvious color change. DETAILED DESCRIPTION

[0029] The present invention is further explained below in conjunction with specific examples. The following examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. The materials used in the following examples, unless otherwise specified, can be obtained from commercial sources.

[0030] 1. Sources

[0031] 1. Thermochromic powder:

[0032] The thermochromic powder described in the present invention is commercially available, specifically a thermochromic pigment prepared from an electron transfer type organic compound system, which is wrapped with acrylic resin to form a layer of nanoshell on its periphery to form a microencapsulated reversible thermochromic powder, which can protect the internal thermochromic powder from corrosion by other chemical substances. The present invention selects three colors of thermochromic powder, namely pink, blue and green; the color change temperature of the thermochromic powder is 28°C.

[0033] 2. Mask base fabric:

[0034] The facial mask base fabric described in the present invention is a facial mask base fabric made of pearl fiber, tencel or cuprammonia fiber.

[0035] 2. Printing process

[0036] The printing method of the present invention is to use a gravure printing process or a flexographic printing process to mix the thermochromic powder with ink and other components to prepare a printing coating, and then print a thermochromic pattern on a mask base cloth.

[0037] 1. Printing coatings:

[0038] (1) The printing coating comprises the following ingredients: 5%-10% temperature-sensitive powder, 35%-50% binder, 6% catalyst, 4% cross-linking agent, 25% color paste, and the rest is water. The color paste is the ink color paste.

[0039] (2) The preparation method of the printing coating is as follows: the components are uniformly mixed according to a proportion, and stirred with a stirring machine for 10-30 minutes until the mixture is uniform and has no sparse feeling, thereby preparing the printing coating.

[0040] (3) Examples and Comparative Examples: With respect to the addition ratio of the temperature-sensitive powder and the adhesive in the printing coating, one group of examples and two groups of comparative examples are listed below, as shown in Table 1.

[0041] Table 1 Composition of printing coatings

[0042] Components Example Comparative Example 1 Comparative Example 2 Temperature sensitive powder 5％ 5％ 1％ Adhesives 50％ 30％ 40％ catalyst 6％ 6％ 6％ Crosslinking agent 4％ 4％ 4％ Color paste 25％ 25％ 25％ water 10％ 30％ 24％

[0043] In the above-mentioned embodiments and comparative examples, three colors of thermochromic powder, pink, green and blue, were respectively selected to print four patterns on the mask base fabric by gravure printing or flexographic printing process.

[0044] The results show that the pattern printed by the embodiment has clear color and obvious color change; the pattern printed by comparative example 1 has poor color fastness and is easy to fade; the pattern printed by comparative example 2 does not change color obviously.

[0045] After several experiments, it was verified that when the mass fraction of the thermochromic powder in the printing coating is 5%-10% and the mass fraction of the adhesive is 35%-50%, a pattern with good color rendering and obvious color change can be printed on the mask base fabric.

[0046] 2. The steps of gravure printing are as follows:

[0047] (1) Receiving materials: Prepare the required mask base fabric and dye in advance and receive them from the warehouse to prepare for subsequent production;

[0048] (2) Loading the base fabric onto the machine: Remove the packaging of the prepared mask base fabric roll, conduct an appearance inspection, and then load it into the roll-up unit at the front end of the printing equipment;

[0049] (3) Dye loading: inject the prepared printing paint into the slurry tank;

[0050] (4) Template loading: The customized pattern roller is loaded into the roller of the machine to perform a simulated detection of the rotation of the parts;

[0051] (5) Start printing: The cloth roll slowly enters the dyeing tank for pattern printing;

[0052] (6) Drying, rewinding, and packaging: The printed mask base fabric is dried at 80°C, and then rewinding and packaging are performed.

[0053] 3. The steps of flexographic printing are as follows:

[0054] (1) Receiving materials: Prepare the required mask base fabric and dye in advance and receive them from the warehouse to prepare for subsequent production;

[0055] (2) Loading the base fabric onto the machine: Remove the packaging of the prepared mask base fabric roll, conduct an appearance inspection, and then load it into the roll-up unit at the front end of the printing equipment;

[0056] (3) Dye loading: inject the prepared printing paint into the slurry tank;

[0057] (4) Template loading: The confirmed silicone plate is attached to the printing cylinder and a simulated rotation test is performed to check whether there is any sign of adhesion or looseness;

[0058] (5) Start printing: The cloth roll slowly enters the dyeing tank for pattern printing;

[0059] (6) Drying, rewinding, and packaging: The printed mask base fabric is dried at 80°C, and then rewinding and packaging are performed.

[0060] 3. Usage

[0061] When a user uses a facial mask made of the thermochromic facial mask base fabric described in the present invention, after the target usage time is reached, the temperature of the facial mask base fabric rises to 28°C, and the thermochromic pattern changes from colored to colorless. When the user removes the facial mask from the face, the temperature of the facial mask base fabric decreases, and the thermochromic pattern returns from colorless to colored.

[0062] The above description is only an example of the implementation mode of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A thermochromic facial mask base fabric, characterized in that: The invention comprises a facial mask base fabric body, on which a temperature-sensitive color-changing pattern is attached.

2. The thermochromic facial mask base fabric according to claim 1, characterized in that: The facial mask base cloth body is made of pearl fiber, tencel or cuprammonia fiber.

3. The thermochromic facial mask base fabric according to claim 1, characterized in that: The thermochromic pattern is obtained by printing a thermochromic pigment in combination with ink on a mask base fabric.

4. The thermochromic facial mask base fabric according to claim 3, characterized in that: The thermochromic pigment is a microencapsulated reversible thermochromic pigment prepared from an electron transfer type organic compound system.

5. The thermochromic facial mask base fabric according to claim 4, characterized in that: The microencapsulated reversible thermochromic pigment includes a nanoshell made of acrylic resin.

6. The thermochromic facial mask base fabric according to claim 1, characterized in that: The mask base fabric body is printed with a thermochromic pattern by gravure printing or flexographic printing.

7. The thermochromic facial mask base fabric according to claim 6, characterized in that: The gravure printing comprises the following steps: (1) Loading the base fabric onto the machine: Load the unpacked mask base fabric roll into the roll-up unit at the front end of the printing equipment; (2) Coating machine: inject the evenly mixed printing coating into the slurry tank; (3) Template loading: The customized pattern roller is loaded into the roller of the machine to perform a simulated detection of the rotation of the parts; (4) Start printing: The cloth roll slowly enters the pulp tank to start pattern printing; (5) Drying, rewinding and packaging.

8. The thermochromic facial mask base fabric according to claim 6, characterized in that: The flexographic printing comprises the following steps: (1) Loading the base fabric onto the machine: Load the unpacked mask base fabric roll into the roll-up unit at the front end of the printing equipment; (2) Coating machine: inject the evenly mixed printing coating into the slurry tank; (3) Template loading: Attach the silicone plate to the printing cylinder and perform a simulated test of part rotation; (4) Start printing: The cloth roll slowly enters the pulp tank to start pattern printing; (5) Drying, rewinding and packaging.

9. The thermochromic facial mask base fabric according to any one of claims 7 or 8, characterized in that: The printing coating in step (3) is prepared by mixing temperature-sensitive powder, adhesive, water, catalyst, cross-linking agent and color paste.

10. The thermochromic facial mask base fabric according to claim 9, characterized in that: In the printing coating, each group The mass fraction ratios are as follows: temperature-sensitive powder 5%-10%, adhesive 35%-50%, catalyst 6%, cross-linking agent 4%, Color paste 25%, the rest is water.