Marking material for fabric and preparation method thereof

Abstract

The invention discloses a marking material for a fabric and a preparation method thereof, and relates to the technical field of marking materials, the marking material for the fabric comprises the following components by mass percentage: 62%-65% of grease, 8%-10% of sodium hydroxide, 19%-20% of water and 5%-10% of talcum powder. According to the marking material for the fabric, the marking position is clear, lasting and easy to clear, the identification definition and the clearability of the marking material are both considered, the processing precision and the production efficiency of products can be improved, and therefore the defective rate caused by unclear marking or residual marking of the products is reduced.

Description

Technical Field

[0001] This invention relates to the field of marking materials technology, and in particular to a marking material for fabrics and its preparation method. Background Technology

[0002] In textile processing, garment cutting, and sewing, temporary positional markings on fabrics are often necessary to assist in cutting, alignment, and sewing operations. For this purpose, the industry has long used various marking materials to achieve visual line markings.

[0003] Currently, commonly used marking materials include oil paint and invisible markers. Oil paint typically has good color development, forming relatively clear marking lines on the fabric surface, meeting the basic requirements for label visibility in processing. However, these materials are prone to dust dispersion during use, causing contamination of the fabric surface and surrounding environment. Furthermore, because their adhering components are difficult to completely remove, they often leave residues on the fabric after washing, sometimes even forming scale-like stains, affecting subsequent dyeing, printing, or the appearance quality of the finished garment. Another type of marking tool is the invisible marker, whose markings are transparent or semi-transparent at room temperature, requiring specific conditions (such as heating or light) to develop. While this type of product reduces visual persistence to some extent, in low-temperature environments, the markings may prematurely appear or exhibit abnormal color development, leading to misreading or distorted markings, affecting the accuracy of the process.

[0004] Therefore, among existing marking materials, those with high clarity are often difficult to remove completely, while those that are easy to clean usually have problems such as blurry lines and poor clarity. Summary of the Invention

[0005] The main objective of this invention is to propose a marking material for fabrics and its preparation method, which aims to balance the clarity and removability of the marking material to improve product processing accuracy and production efficiency, and reduce the defect rate caused by unclear or residual markings.

[0006] To achieve the above objectives, the present invention proposes a marking material for fabrics, wherein the marking material for fabrics comprises the following components by mass percentage: 62%-65% oil, 8%-10% sodium hydroxide, 19%-20% water and 5%-10% talc.

[0007] In one embodiment, the marking material for the fabric comprises, by weight percentage, the following components: 65% oil, 9% sodium hydroxide, 20% water, and 6% talc.

[0008] In one embodiment, the talc powder is of cosmetic grade purity.

[0009] In one embodiment, the purity of the sodium hydroxide is greater than or equal to 96%.

[0010] In one embodiment, the oil is at least one of coconut oil, palm oil, and olive oil.

[0011] In one embodiment, the marking material for the fabric comprises, by weight percentage, the following components: 15%-16% coconut oil, 22%-23% palm oil, 25%-26% olive oil, 8%-10% sodium hydroxide, 19%-20% water, and 5%-10% talc.

[0012] In one embodiment, the marking material for the fabric comprises, by weight percentage, the following components: 16% coconut oil, 23% palm oil, 26% olive oil, 9% sodium hydroxide, 20% water, and 6% talc.

[0013] This invention also proposes a method for preparing a marking material for fabrics, comprising the following steps: S1: Slowly add sodium hydroxide to water and stir until dissolved to obtain a sodium hydroxide solution; S2: Heat the grease in a water bath to 35°C to 50°C, and mix the melted grease with the sodium hydroxide solution in S1 to obtain a mixture; S3: Add talcum powder to the mixture and stir continuously until the mixture thickens. After stirring, pour it into the mold. S4: After standing for 24 to 48 hours under refrigeration or ventilation, the material is demolded and then dried for 4 to 6 weeks to obtain the marking material for the fabric.

[0014] In one embodiment, in S3, the mixing time of the mixture is 1 to 3 hours.

[0015] The technical solution of this invention utilizes a saponification reaction between grease and sodium hydroxide, combined with talc filling and natural drying molding processes. The resulting marking material, after being applied to the fabric surface, forms continuous, uniform, and highly contrasting visible lines. The markings are clear and easily identifiable during cutting, laying, and stitching, significantly improving product processing precision, accuracy, and process reliability. Furthermore, after marking and stitching, the marking material can be easily removed by simple wiping, or even during the stitching process itself, without relying on washing or chemical solvents. It leaves no obvious residue and does not produce scale, stains, or fiber damage. It is particularly suitable for various sensitive fabrics such as cotton, polyester, silk, and blends, effectively avoiding the problems of easy contamination and difficult cleaning associated with traditional powdered or liquid marking materials. This balances the clarity and removability of the marking material, contributing to improved product processing precision and production efficiency, thereby reducing the defect rate caused by unclear markings or residues. Furthermore, the marking material prepared by this invention is simple to use, and its solid-state molding structure design avoids dust flying, improves the working environment, and thus enhances operational safety and ease of use. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a marking material for fabrics prepared by the method of the present invention; Figure 2 A schematic diagram illustrating the effect of drawing lines on fabric using traditional marking materials. Figure 3 This is a schematic diagram showing the effect of the marking material prepared in this invention after being used to draw lines on the same type of fabric. Figure 4 This is a schematic diagram showing the effect of marking lines on fabric and completing stitching using traditional marking materials. Figure 5 This is a schematic diagram illustrating the effect of marking lines on the same fabric and completing the stitching using the marking material provided by this invention.

[0018] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0020] This invention proposes a marking material for fabrics.

[0021] In one embodiment of the present invention, the marking material for fabric comprises the following components by weight percentage: 62%-65% oil, 8%-10% sodium hydroxide, 19%-20% water and 5%-10% talc.

[0022] In one embodiment, the marking material for the fabric comprises, by weight percentage, the following components: 65% oil, 9% sodium hydroxide, 20% water, and 6% talc.

[0023] In one embodiment, the talc powder is of cosmetic grade purity.

[0024] In one embodiment, the purity of sodium hydroxide is greater than or equal to 96%.

[0025] In one embodiment, the oil is at least one of coconut oil, palm oil, and olive oil.

[0026] In one embodiment, the marking material for the fabric comprises, by weight percentage, the following components: 15%-16% coconut oil, 22%-23% palm oil, 25%-26% olive oil, 8%-10% sodium hydroxide, 19%-20% water, and 5%-10% talc.

[0027] In one embodiment, the marking material for the fabric comprises, by weight percentage, the following components: 16% coconut oil, 23% palm oil, 26% olive oil, 9% sodium hydroxide, 20% water, and 6% talc.

[0028] This invention also proposes a method for preparing a marking material for fabrics, comprising the following steps: S1: Slowly add sodium hydroxide to water and stir until dissolved to obtain a sodium hydroxide solution; S2: Heat the grease in a water bath to 35°C to 50°C, and mix the melted grease with the sodium hydroxide solution in S1 to obtain a mixture; S3: Add talcum powder to the mixture and stir continuously until the mixture thickens. After stirring, pour it into the mold. S4: After standing for 24 to 48 hours under refrigeration or ventilation, the material is demolded and then dried for 4 to 6 weeks to obtain the marking material for the fabric.

[0029] In one embodiment, in S3, the mixing time of the mixture is 1 to 3 hours.

[0030] The present invention will now be described in detail with reference to the embodiments.

[0031] The following components are calculated as a percentage by mass.

[0032] Example 1: S1: Slowly add 9% sodium hydroxide to 20% water and stir until dissolved to obtain a sodium hydroxide solution; S2: Heat the oils (16% coconut oil, 23% palm oil and 26% olive oil) in a water bath to 35°C to 50°C, and mix the melted oils with the sodium hydroxide solution in S1 to obtain a mixture; S3: Add 5% talc powder to the mixture and stir continuously for 1-3 hours until the mixture thickens. After stirring, pour it into the mold. S4: After standing for 24 to 48 hours under refrigeration or ventilation, the material is demolded and then dried for 4 to 6 weeks to obtain the marking material for the fabric.

[0033] In step S1, the sodium hydroxide solution becomes clear and transparent, indicating that the sodium hydroxide has completely dissolved. In step S2, the sodium hydroxide solution is mixed when its temperature is approximately the same as that of the liquid grease. In step S3, the mixing can be stopped by drawing a character on the surface of the mixture, such as drawing an "8" on the surface of the mixture. When the "8" mark does not disappear, the mixing can be stopped. In step S4, the mixture is dried in a cool environment for 4 to 6 weeks.

[0034] Example 2: S1: Slowly add 9% sodium hydroxide to 20% water and stir until dissolved to obtain a sodium hydroxide solution; S2: Heat the oils (16% coconut oil, 23% palm oil and 26% olive oil) in a water bath to 35°C to 50°C, and mix the melted oils with the sodium hydroxide solution in S1 to obtain a mixture; S3: Add 6% talc to the mixture and stir continuously for 1-3 hours until the mixture thickens. After stirring, pour it into a mold. S4: After standing for 24 to 48 hours under refrigeration or ventilation, the material is demolded and then dried for 4 to 6 weeks to obtain the marking material for the fabric.

[0035] In step S1, the sodium hydroxide solution becomes clear and transparent, indicating that the sodium hydroxide has completely dissolved. In step S2, the sodium hydroxide solution is mixed when its temperature is approximately the same as that of the liquid grease. In step S3, the mixing can be stopped by drawing a character on the surface of the mixture, such as drawing an "8" on the surface of the mixture. When the "8" mark does not disappear, the mixing can be stopped. In step S4, the mixture is dried in a cool environment for 4 to 6 weeks.

[0036] Example 3: S1: Slowly add 9% sodium hydroxide to 19% water and stir until dissolved to obtain a sodium hydroxide solution; S2: Heat the oils (15% coconut oil, 22% palm oil and 25% olive oil) in a water bath to 35°C to 50°C, and mix the melted oils with the sodium hydroxide solution in S1 to obtain a mixture; S3: Add 10% talc to the mixture and stir continuously for 1-3 hours until the mixture thickens. After stirring, pour it into a mold. S4: After standing for 24 to 48 hours under refrigeration or ventilation, the material is demolded and then dried for 4 to 6 weeks to obtain the marking material for the fabric.

[0037] In step S1, the sodium hydroxide solution becomes clear and transparent, indicating that the sodium hydroxide has completely dissolved. In step S2, the sodium hydroxide solution is mixed when its temperature is approximately the same as that of the liquid grease. In step S3, the mixing can be stopped by drawing a character on the surface of the mixture, such as drawing an "8" on the surface of the mixture. When the "8" mark does not disappear, the mixing can be stopped. In step S4, the mixture is dried in a cool environment for 4 to 6 weeks.

[0038] Examples 1-3 were carried out according to the steps of the preparation method of the marking material for fabric, with the only difference being the different raw material ratios, as shown in Table 1; Table 1: Mass percentage of each component in Examples 1-3:

[0039] Please refer to Figure 1 , Figure 1This is a schematic diagram of the marking material for fabrics prepared by the method of the present invention. As shown in the diagram, the marking material is solid, with a uniform amber color. It has a dense texture, a certain gloss, natural edge contours, and a uniform internal structure. No delamination, obvious cracks, or bubbles are observed, indicating thorough mixing and a complete curing process. The marking material has slightly curved ends and a wavy, textured structure in the middle to increase grip friction and reduce the risk of slippage. Its shape is easy to handle and suitable for marking lines on fabrics. Of course, depending on the actual application requirements, different shapes of molds can be used to obtain marking materials of corresponding forms during the demolding process. For example, it can be prepared in strip, block, rod, sheet, or pen-like structures to adapt to different operating habits and usage scenarios. By adjusting the mold design, the surface texture, anti-slip structure, or grip can also be optimized, further improving ease of use and comfort.

[0040] This marking material is suitable for temporary location marking during textile processing, such as marking cutting lines, seam points, and alignment points. The lines formed on the fabric are clearly visible, have good adhesion, and are not easily detached or blurred under normal use conditions. After marking, it does not require regular washing to remove; wiping with a towel leaves no noticeable residue and does not cause staining or damage to the fabric.

[0041] The line-drawing and removal effects of the marking materials prepared in Examples 1-3 are compared in Table 2. Table 2: Comparison of the line-drawing and removal effects of the marking materials prepared in Examples 1-3:

[0042] Referring to Table 2, the marking clarity and removability of the marking materials prepared in Examples 1 to 3 were compared and evaluated in practical use. The results show that all three examples can form visible lines on the fabric surface, possessing basic marking functionality. Specifically, the marking effect of the material prepared in Example 1 is "relatively clear," with continuous lines but slightly low contrast, resulting in slightly weaker recognition on dark fabrics. The marking clarity of Examples 2 and 3 both reach the "clear" level, with uniform line color and distinct boundaries, suitable for the precise positioning needs of various common fabrics. Regarding removability, Examples 1 and 2 are both "easy to remove," with no obvious residue after wiping with a dry or damp cloth, demonstrating high cleaning efficiency. Example 3 is "relatively easy to remove," and can be largely removed, but some areas require slight wiping for complete cleaning. These results indicate that the preparation method provided by this invention has good process stability within a reasonable parameter range, and the products obtained under different ratios can meet practical application requirements, exhibiting good overall performance, especially superior to traditional marking materials in the comprehensive balance between marking clarity and removability.

[0043] Please refer to Figure 2 and Figure 3 , Figure 2 This is a schematic diagram illustrating the effect of drawing a line on fabric using traditional marking materials. The image shows a thin, light-colored line with low contrast and blurred edges, making it difficult to discern in low light or at a distance. The line does not adhere firmly to the fabric surface and is easily broken or faded due to friction or stretching. Figure 3 This is a schematic diagram illustrating the effect of marking a line on the same type of fabric using the marking material prepared according to the present invention. The diagram shows a continuous, uniform, and brightly colored white line with high visual contrast and a clear boundary outline. The line runs the entire length of the fabric and remains intact even under slight wrinkles or stretching, demonstrating good adhesion and durability.

[0044] Combination Figure 2 and Figure 3 As can be seen from the comparison, traditional marking materials produce marking lines on light-colored fabrics that are pale in color, narrow in width, and lack continuity. This can easily lead to misjudgment, especially in complex operating environments, affecting cutting accuracy. In contrast, the marking material provided by this invention produces significantly clearer and more durable lines under the same conditions. It has high color intensity, effectively covering fabric backgrounds of different colors and textures, and the line width is moderate, facilitating subsequent alignment and sewing operations.

[0045] Please refer to Figure 4 and Figure 5 , Figure 4 This is a schematic diagram illustrating the effect of marking lines on fabric using traditional marking materials and then stitching them. As can be seen in the image, although the original marking lines are covered during sewing, their residue remains on the fabric surface, forming a lighter-colored mark with blurred edges. This mark has not completely disappeared and is still visible under light, affecting the neatness of the finished product, especially noticeable on light-colored or high-gloss fabrics. Figure 5 This is a schematic diagram illustrating the effect of marking lines on the same fabric and completing the stitching using the marking material provided by this invention. The diagram shows that after stitching, there are no obvious residues on the fabric surface, the stitched area is clean and flat, the stitches are clear, the fabric surface is clean, the fabric structure is not damaged, the color consistency is good, and there are no stains, yellowing, or spots.

[0046] Combination Figure 4 and Figure 5In comparison, traditional marking materials are difficult to completely remove after actual sewing. Their residues may penetrate the fibers or adhere to the fabric surface, making them impossible to remove through conventional wiping or light cleaning in subsequent processes, leading to defects in the finished product. This is especially problematic in high-end garments or delicate crafts, potentially causing quality issues. The marking material provided by this invention can be quickly removed after marking, using simple physical methods (such as wiping with a towel), or even during the sewing process itself, without the need for washing or chemical solvents. This not only improves production efficiency but also reduces the defect rate. Furthermore, the marking material of this invention is composed of natural oil saponification products and talc, making it mild and non-irritating. It will not cause negative effects such as staining, hardening, or corrosion on fabrics, making it suitable for various sensitive fabrics (such as silk and cotton-linen blends), improving production efficiency and the quality of finished products.

[0047] The technical solution of this invention utilizes a saponification reaction between grease and sodium hydroxide, combined with talc filling and natural drying molding processes. The resulting marking material, after being applied to the fabric surface, forms continuous, uniform, and highly contrasting visible lines. The markings are clear and easily identifiable during cutting, laying, and stitching, significantly improving processing precision, accuracy, and process reliability. Furthermore, after marking and stitching, the marking material can be easily removed by simple wiping, or even during the stitching process itself, without relying on washing or chemical solvents. It leaves no obvious residue and does not produce scale, stains, or fiber damage. It is particularly suitable for various sensitive fabrics such as cotton, polyester, silk, and blends, effectively avoiding the problems of easy contamination and difficult cleaning associated with traditional powdered or liquid marking materials. This balances the clarity and removability of the marking material, contributing to improved processing precision and production efficiency, thereby reducing the defect rate caused by unclear markings or residues. Furthermore, the marking material prepared by this invention is simple to use, and its solid-state molding structure design avoids dust flying, improves the working environment, and thus enhances operational safety and ease of use.

[0048] The above description is merely an exemplary embodiment of the present invention and does not limit the scope of protection of the present invention. Any equivalent structural transformations made based on the technical concept of the present invention and the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present invention.

Claims

1. A marking material for a fabric, characterized by, The marking material for the fabric comprises the following components by mass percentage: grease 62%-65%, sodium hydroxide 8%-10%, water 19%-20%, and talcum powder 5%-10%.

2. The marking material for a fabric according to claim 1, wherein The marking material for the fabric comprises the following components by mass percentage: grease 65%, sodium hydroxide 9%, water 20%, and talcum powder 6%.

3. The marking material for a fabric according to claim 1, wherein The purity grade of the talcum powder is a cosmetic grade.

4. The marking material for a fabric according to claim 1, wherein The purity of the sodium hydroxide is greater than or equal to 96%.

5. The marking material for a fabric according to claim 1, wherein The grease is at least one of coconut oil, palm oil, and olive oil.

6. A marking material for a fabric according to claim 5, wherein The marking material for the fabric comprises the following components by mass percentage: coconut oil 15%-16%, palm oil 22%-23%, olive oil 25%-26%, sodium hydroxide 8%-10%, water 19%-20%, and talcum powder 5%-10%.

7. A marking material for a fabric according to claim 6, wherein The marking material for the fabric comprises the following components by mass percentage: coconut oil 16%, palm oil 23%, olive oil 26%, sodium hydroxide 9%, water 20%, and talcum powder 6%.

8. A method for preparing a marking material for a fabric, characterized by, The method comprises the following steps: S1: slowly adding sodium hydroxide into water, stirring until dissolved to obtain a sodium hydroxide solution; S2: heating the grease to 35-50°C, mixing the melted grease with the sodium hydroxide solution in S1 to obtain a mixed solution; S3: adding talcum powder into the mixed solution, continuously stirring until the mixed solution becomes thick, and then pouring the mixed solution into a mold after stirring is completed; S4: demolding after standing for 24-48 hours under refrigeration or ventilation, and then obtaining the marking material for the fabric after airing for 4-6 weeks.

9. The method for preparing a marking material for a fabric according to claim 8, wherein In S3, the stirring time of the mixed solution is 1-3 hours.

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