METHOD FOR COLOR MAINTENANCE AND ENHANCEMENT OF TATTOO

Abstract

A waterproof and air-permeable moist dressing which moisturizes and enhances color for aftercare of fresh tattoo. Therefore, the waterproof and air-permeable moist dressing can provide professional and medical repair, protection, isolation, and absorption of wound exudates and tattoo inks after tattooing to improve the aesthetical beauty of the tattoo.

Claims

1. A method for additive manufacturing a 3D-printed article, comprising: (a) printing and depositing one or more layers of a slurry by using a 3D printer, wherein the slurry comprises a ceramic powder composition; (b) further injecting an oil around the one or more layers of slurry; (c) repeating steps (a) and (b) until a main body with desired geometric shape is obtained; and (d) sintering the main body by heating to obtain the 3D-printed article wherein the temperature of a printing carrier of the 3D printer is from 30 to 80 C.

2. The method of claim 1, wherein the slurry is a composition which comprises ceramic powder, glass powder, or metal powder.

3. The method of claim 2, wherein the ceramic powder comprises hydroxylapatite, tricalcium phosphate, high density alumina, zirconia, bioglass, carbide ceramic materials, nitride ceramic materials, aluminum silicate, boride ceramic materials or silicide ceramic materials.

4. The method of claim 1, wherein the oil comprises polyglycol, silicone oil, fluorinated oil, phosphoric ester, polyether, paraffin, dodecyl alcohol, olive oil, soybean oil, hydrocarbon mineral oil, liquid paraffin, or synthetic hydrocarbon.

5. The method of claim 1, wherein the viscosity of the slurry ranges from 100 to 900 cP.

6. The method of claim 1, wherein the size of a nozzle of the 3D printer ranges from 19 to 30G.

7. The method of claim 1, wherein the printing speed of the 3D printer ranges from 0.1 to 5 cm/s.

8. The method of claim 1, wherein the slurry is prepared by following steps: (a) synthesizing poly(N-isopropylacrylamide) (p(NiPAAm)) or poly(N-isopropylacrylamide-co-methacrylic acid) (p(NiPAAm-MAA)); (b) mixing a dispersant with hydroxylapatite; (c) mixing the p(NiPAAm) or the p(NiPAAm-MAA) of step (a) with water to obtain a hydrogel solution; (d) mixing the hydrogel solution of step (c) with product of step (b) to produce a mixture; and (e) stirring the mixture of step (d) to produce the slurry.

9. The method of claim 8, which further comprise adding polymer particles to the mixture of step (d) prior to step (e).

10. The method of claim 8, wherein the hydroxylapatite and the dispersant of step (b) are mixed in a weight ratio ranging from 25:1 to 25:5.

11. The method of claim 8, wherein the dispersant of step (b) is polyacrylic acid (PAA), polymethacrylic acid (PMA), or polyvinyl alcohol (PVA).

12. The method of claim 8, wherein the p(NiPAAm-MAA) and the water of step (c) are mixed in a volume ratio ranging from 1:10 to 2:1.

13. The method of claim 8, which further comprises adding a photocuring initiator to the hydrogel solution of step (c) to allow the slurry to be photocured and molded after being irradiated by UV light.

14. The method of claim 13, wherein the photocuring initiator is a radical type photocuring initiator or a cationic type photocuring initiator.

15. The method of claim 14, wherein the radical type photocuring initiator comprises acrylic acid or unsaturated polyester, the cationic photocuring initiator comprises an epoxy compound, oxetane or vinyl ether.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0049] FIG. 1 shows a schematic diagram of applying a soothing factor or a retouching factor to a tattoo site.

[0050] FIG. 2 shows a schematic diagram of applying a moist dressing on a tattoo area after applying a soothing factor or a retouching factor.

[0051] FIG. 3 shows a schematic diagram of a side view of the structure of a waterproof and air-permeable moist dressing.

EXAMPLES

[0052] Several examples of the operation mode of the instant application are provided, and described and illustrated in conjunction with the drawings for review and reference. For easy explanation, the drawings of the present invention are not necessarily made according to actual proportions. The proportions and locations of the features in the drawings are not intended to limit the scope of the claims of the present invention.

[0053] The following examples are non-limiting and represent only several aspects and features of the present invention.

Example 1

[0054] Clean and cold water was used to clean and then a gauze was used to gently remove blood, exudates, inks and other substances from a fresh tattoo, a hydrocolloid dressing (moist dressing 10) having a size at least 0.5 cm bigger around the tattoo was used and gently adhered onto the tattoo, the dressing was replaced every 0.5-2 days (the frequency of replacement was adjusted depending on the amount of blood and wound exudates), and aforementioned steps were repeated until the wound healed.

Example 2

[0055] Please refer to FIGS. 1 and 2, clean and cold water was used to clean, then a gauze was used to gently remove blood, exudates, inks and other substances from a fresh tattoo, a retouching factor 103 containing a solution of 0.5% of potassium methoxysalicylate or 2% of aloe was applied to the tattoo 101, waited until it was in a slightly wet state, a hydrocolloid dressing (moist dressing 10) having a size at least 0.5 cm bigger around the tattoo 101 was gently adhered to the tattoo 101, the dressing was replaced every 0.5-2 days (the frequency of replacement was adjusted depending on the amount of blood and exudates), and the aforementioned steps were repeated.

[0056] Please refer to FIG. 2, a moist dressing 10 containing a retouching factor 103, which was 0.5% of potassium methoxysalicylate or 2% of aloe, was provided in this Example, a tattoo 101 was on the skin of a human body, and the moist dressing 10 was covered on the tattoo 101.

Example 3

[0057] A hydrogel 202 having a water content of more than 50% was combined with a waterproof and air-permeable film 201 to form a waterproof and air-permeable moist dressing 20 having a self-adhesive periphery; clean and cold water was used to clean and a gauze was used to gently remove blood, exudates, inks and other substances from a fresh tattoo, the waterproof and air-permeable moist dressing 20 was adhered to a fresh tattoo 101, the dressing was replaced every 0.5-2 days (the frequency of replacement was adjusted depending on the amount of blood and wound exudates).

[0058] Please refer to FIG. 3, which represents a schematic diagram of a side view of the structure of a waterproof and air-permeable moist dressing 20 of the present invention. The waterproof and air-permeable moist dressing 20 comprised a waterproof and air-permeable film 201 and a hydrogel 202, wherein the waterproof and air-permeable moist dressing 20 had a two-sided structure, one of which was an adhesive surface (adhesive surface is not shown), an adhesive was provided on the adhesive surface, and the adhesive surface was bonded with the hydrogel 202, so that the waterproof and air-permeable film 201 and the hydrogel 202 constituted the waterproof and air-permeable moist dressing 20. In addition, the surface area of the waterproof and air-permeable film 201 was greater than the surface area of the hydrogel 202, so that the adhesive surface of the waterproof and air-permeable film 201 had an adhesive area in excess of the area adhered to the hydrogel 202, thereby allowing the waterproof and air-permeable moist dressing 20 to be adhered to the skin.

Example 4

[0059] A soothing factor 102, 0.1 g of hyaluronic acid, and a retouching factor 103, 0.5 g of arbutin, were added to 99 g of hydrogel to form an arbutin hydrogel having a water content greater than 50% and 0.1% of hyaluronic acid. The hydrogel having arbutin/hyaluronic acid was combined with the waterproof and air-permeable film 201 of Example 3 to form a waterproof and air-permeable moist dressing 20 having a self-adhesive perphery; clean and cold water was used to clean and a gauze was used to gently remove blood, exudates, inks and other substances from a fresh tattoo, the waterproof and air-permeable moist dressing 20 was gently adhered onto the fresh tattoo, the dressing was replaced every 0.5-2 days (the frequency of replacement was adjusted depending on the amount of blood and exudates).

[0060] 5 people after having a fresh tattoo were recruited and assigned to each group of the aforementioned different embodiments and the plastic wrap commonly used in the tattoo industry (as a comparative example) for maintenance and repair tests, indicators for tattoo maintenance and repair were measured, and the test results are shown in Table 1 as below.

[0061] Table 1. Test results of 20 subjects having a fresh tattoo according to the embodiments and comparative examples described in the instant application (condition classification: .star-solid..star-solid..star-solid. best, .star-solid..star-solid. better, .star-solid..star-solid. good, .star-solid. normal, .star-solid. poor, nearly ineffective, -ineffective)

TABLE-US-00001 TABLE 1 Test results of 20 subjects having a fresh tattoo according to the embodiments and comparative examples described in the instant application Group Example Example 2 comparative 1 (Salicyclic Example 4 example (Hydro- acid/aloe + Example 3 (Arbutin (Plastic Item colloid) hydrocolloid) (Hydrogel) hydrogel) wrap) Tattoo color .star-solid..star-solid. .star-solid..star-solid. .star-solid..star-solid..star-solid. Collision .star-solid..star-solid..star-solid. .star-solid..star-solid..star-solid. .star-solid..star-solid..star-solid. .star-solid..star-solid..star-solid. buffering Operational .star-solid..star-solid..star-solid. .star-solid..star-solid. .star-solid..star-solid..star-solid. .star-solid..star-solid..star-solid. convenience Exudates .star-solid. .star-solid. .star-solid..star-solid..star-solid. .star-solid..star-solid..star-solid. absorption Easiness .star-solid. .star-solid. .star-solid..star-solid. .star-solid..star-solid..star-solid. .star-solid. and discomfort (condition classification: .star-solid..star-solid..star-solid. best, .star-solid..star-solid. better, .star-solid..star-solid. good, .star-solid. normal, .star-solid. poor, nearly effective, ineffective)

[0062] The examples above are merely exemplary to describe the efficacy of the present invention and to illustrate the technical features of the present invention, and they are not intended to limit the scope of the present invention. One skilled in the art may modify and vary the examples without departing from the spirit and scope of the present invention, therefore, the examples should not be construed as the limitation of the claims.