A tc yarn oil painting canvas and a preparation method thereof

Abstract

The application discloses a TC yarn oil painting canvas and a preparation method thereof. The TC yarn oil painting canvas comprises a reinforced body, the reinforced body is made of pure color TC yarn, and the pure color TC yarn is made by blending 65% polyester and 35% cotton. When the TC yarn oil painting canvas is a thick canvas with a thickness greater than or equal to a rated value M, the total number of warp yarns and weft yarns in the unit area of the reinforced body is greater than N. When the TC yarn oil painting canvas is a thin canvas with a thickness less than the rated value M, the reinforced body is provided with uniform pinhole gaps with a diameter of 0.1-0.3 mm. The preparation method comprises the following steps: firstly, selecting pure color TC yarn, preparing pure color sizing material and a constant temperature drying cylinder, and preparing airflow spinning; blending the pure color TC yarn through the airflow spinning; performing hair reduction treatment on a semi-finished product oil painting canvas, and meanwhile, keeping the surface roughness Ra of the oil painting canvas to be 0.6-1.4 microns; and performing hot air setting on the oil painting canvas subjected to the hair reduction treatment, and controlling the hot air setting temperature to be 100-150 DEG C, so as to form the TC yarn oil painting canvas. The TC yarn oil painting canvas has the advantages of high supportability, strong pigment adhesion and reasonable price.

Description

Technical Field

[0001] This invention relates to the field of textile technology, and in particular to a TC yarn canvas and its preparation method. Background Technology

[0002] Currently, the field of artistic creation has placed higher demands on the performance and cost-effectiveness of oil painting canvases. Existing oil painting canvas products have many shortcomings. While some oil painting canvas products meet certain performance standards, they use various additives or high-value fabrics to enhance adhesion, resulting in high prices that exceed the purchasing budgets of small and medium-sized artists and practitioners. Some low-priced products have deficiencies in terms of material purity (such as containing yellow and white yarn or colored fibers), color difference control, and canvas support, failing to meet the professional creation requirements for pure base color and stable pigment adhesion, and thus making it difficult to adapt to diverse oil painting creation scenarios. The market urgently needs products that combine high support, strong pigment adhesion, and reasonable prices. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a TC yarn oil painting canvas and its preparation method, which has the advantages of high support, strong pigment adhesion and reasonable price.

[0004] To achieve the above objectives, the following technical solution is proposed: A TC yarn canvas includes a reinforcing body for enhancing paint adhesion. The reinforcing body is woven from solid-color TC yarn, which is a blend of 65% polyester and 35% cotton. When the TC yarn canvas is a thick canvas with a thickness greater than or equal to a rated value M, the total number of warp and weft yarns per unit area of ​​the reinforcing body is greater than N. When the TC yarn canvas is a thin canvas with a thickness less than the rated value M, the reinforcing body is provided with uniformly spaced pinholes with a diameter of 0.1-0.3 mm.

[0005] Preferably, the rated value M is 1.5-2.0 mm, the total number N is 50-150, and the diameter of the pinhole gap is 0.1-0.2 mm.

[0006] Preferably, the TC yarn canvas further includes a micro-roughened layer, which is disposed on the end face of the reinforcing body, and the thickness of the micro-roughened layer is less than 0.2 mm.

[0007] This invention also proposes the following technical solutions: A method for preparing the TC yarn oil painting canvas includes: Step A: First, select solid-color TC yarn and prepare solid-color sizing agent and constant temperature drying cylinder to prepare for air-jet spinning; Step B: The solid-color TC yarn is blended by air-jet spinning. By controlling the weaving parameters in the air-jet yarn, semi-finished canvases of different thicknesses with high adhesion are produced. Step C: Perform a fuzz reduction treatment on the semi-finished canvas while maintaining the surface roughness Ra of the semi-finished canvas at 0.6-1.4μm; Step D: The semi-finished canvas that has undergone the fuzz reduction treatment in Step C is hot-air set. The hot-air setting temperature is controlled at 100-150℃ and the time is 20-50s, thus forming the TC yarn canvas.

[0008] Furthermore, the preparation method also includes step E, which involves performing a comprehensive color difference test on the formed TC yarn canvas to ensure that the color difference ΔE ≤ 1.5.

[0009] Furthermore, in step A, a special testing process for colored fibers and yellow-white yarn is established, and white TC yarn without impurities is selected; the temperature fluctuation of the constant temperature drying cylinder is kept within ±2℃ through segmented control.

[0010] Further, in step B, the air-jet spinning is an air-jet spinning with a yarn evenness CV value ≤ 2.5%, and the weaving parameters include the ratio density of warp and weft yarns and the yarn tension fluctuation value, wherein the yarn tension fluctuation value is 80-100N.

[0011] Furthermore, in step B, if the semi-finished canvas is a thick canvas, the adhesion of the thick canvas is increased by increasing the density of the warp and weft yarns; if the semi-finished canvas is a thin canvas, the adhesion of the thin canvas is increased by providing uniform pinhole gaps with a diameter of 0.1-0.2 mm on the reinforcing body.

[0012] Furthermore, in step C, the fuzz is reduced by applying an anti-fuzzing agent and performing singeing and shearing processes, and the surface roughness Ra of the canvas is reduced to 0.8-1.2 μm.

[0013] Furthermore, in step D, the temperature of the hot air setting is controlled at 120-130℃ for 30-40 seconds using PID control.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The TC yarn canvas disclosed in this application comprises a solid-color TC yarn made of a blend of 65% polyester and 35% cotton. The solid-color TC yarn has small color difference and strong support. When the solid-color TC yarn is used as a thick canvas with a thickness greater than the rated value M, the total number of warp and weft yarns per unit area of ​​the reinforcing body is greater than N, which can ensure the tightness of the thick canvas to accommodate heavy paint and enhance adhesion. When the solid-color TC yarn is used as a thin canvas with a thickness less than M, the reinforcing body is provided with uniform pinholes with a diameter of 0.1-0.3 mm, which can enhance the permeability and adhesion of the thin canvas. In this application, the adhesion of the canvas is enhanced without the use of high-value fabrics and additives, resulting in lower cost and less color difference without the presence of impurities. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the TC yarn canvas of the present invention; Figure 2 This is a three-dimensional structural diagram of the enhanced body of the present invention; Figure 3 This is a flowchart of the preparation method of the TC yarn oil painting canvas of the present invention.

[0016] In the diagram: 10, reinforced body; 11, solid color TC yarn; 12, pinhole gap; 20, micro-rough layer; 21, hairiness. Detailed Implementation

[0017] To better understand the specific technical solutions, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed during use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0019] like Figures 1-2 As shown, this application discloses a TC yarn canvas, which includes a reinforcing body 10 for enhancing pigment adhesion. The reinforcing body 10 is woven from solid-color TC yarn 11, which is a blend of 65% polyester and 35% cotton. When the TC yarn canvas is a thick canvas with a thickness greater than or equal to a rated value M, the total number of warp and weft yarns per unit area of ​​the reinforcing body 10 is greater than N. When the TC yarn canvas is a thin canvas with a thickness less than the rated value M, the reinforcing body 10 is provided with uniformly spaced pinholes with a diameter of 0.1-0.3 mm.

[0020] In the above embodiments, the TC yarn canvas disclosed in this application includes a solid-color TC yarn made of a blend of 65% polyester and 35% cotton. The solid-color TC yarn has small color difference and strong support. When the solid-color TC yarn is a thick canvas with a thickness greater than the rated value M, the total number of warp and weft yarns per unit area of ​​the reinforcing body is greater than N, which can ensure the tightness of the thick canvas to accommodate heavy paint and enhance adhesion. When the solid-color TC yarn is a thin canvas with a thickness less than M, the reinforcing body is provided with uniform pinholes with a diameter of 0.1-0.3 mm, which can enhance the permeability and adhesion of the thin canvas. In this way, the adhesion of the canvas is enhanced without the use of high-value fabrics and additives, resulting in lower cost and less color difference without the presence of impurities.

[0021] The solid-color TC yarn 11 is preferably white TC yarn, and it can be used as both weft and warp yarns in a blend for canvas. The rated value M varies depending on the region and industry, and the total number of warp and weft yarns N is set by the user. It is understandable that by adjusting the ratio of polyester to cotton in the TC yarn, the stiffness and flexibility are balanced, ensuring the canvas meets the required support.

[0022] In a preferred embodiment, such as Figures 1-2 As shown, the rated value M is 1.5-2.0 mm, the total number of threads N is 50-150 per square inch, and the diameter of the pinhole is 0.1-0.2 mm. The TC yarn canvas also includes a micro-roughened layer 20, which is disposed on the upper surface of the reinforcing body 10, and the thickness of the micro-roughened layer is less than 0.2 mm.

[0023] In the above embodiments, the rated value M is typically 1.8 mm, and the optimal total number of warp and weft yarns N is 18. The micro-roughened layer 20 also improves the adhesion of the canvas; however, the micro-roughened layer 20 should not be too thick or dense, as excessive thickness will affect the flatness of the canvas. The pinhole gaps 12 should not be too small, as this will result in poor adhesion due to insufficient permeability; nor should they be too large, as this will lead to poor flatness of the canvas and contamination of both sides with paint.

[0024] This invention also discloses a method for preparing the aforementioned TC yarn oil painting canvas, such as... Figure 3 As shown, the preparation method includes: Step A: First, select solid-color TC yarn and prepare solid-color sizing agent and constant temperature drying cylinder to prepare for air-jet spinning; In step A, a special testing process for colored fibers and yellow-white yarn is established, selecting pure white TC yarn to eliminate color differences at the source; the sizing agent must also be pure (white) to avoid contaminating the TC yarn. The temperature fluctuation of the constant-temperature drying cylinder is kept within ±2℃ through segmented control to prevent color differences caused by temperature variations during sizing. The segmented control includes controlling the temperature difference of multiple drying cylinders at different time intervals. Both the pure-colored sizing agent and the constant-temperature drying cylinder are materials required to reduce color differences in air-jet spinning.

[0025] Step B: The solid-color TC yarn is blended by air-jet spinning. By controlling the weaving parameters in the air-jet yarn, semi-finished canvases of different thicknesses with high adhesion are produced. In step B, the air-jet spinning is an air-jet spinning with a yarn evenness CV value ≤ 2.5%, which can reduce unevenness caused by yarn unevenness; the weaving parameters include the ratio density of warp and weft yarns and the yarn tension fluctuation value, the yarn tension fluctuation value is 80-100N, controlling the yarn tension fluctuation value can avoid poor flatness caused by gaps and weft yarn skew due to uneven tension.

[0026] Furthermore, in step B, if the semi-finished canvas is a thick canvas, the adhesion of the thick canvas is increased by increasing the density of the warp and weft yarns; if the semi-finished canvas is a thin canvas, the adhesion of the thin canvas is increased by providing uniform pinhole gaps 12 with a diameter of 0.1-0.2 mm on the reinforcing body.

[0027] The density is increased by increasing the number of warp and weft yarns per unit area. The needle hole gap 12 can be set by controlling the distance between adjacent warp or weft yarns. Generally, the larger the distance, the larger the needle hole gap 12.

[0028] Step C: Perform a fuzz reduction treatment on the semi-finished canvas while maintaining the surface roughness Ra of the semi-finished canvas at 0.6-1.4μm; In step C, the fuzz 21 is reduced by applying an anti-fuzzing agent and performing singeing and shearing processes, and the surface roughness Ra of the canvas is reduced to 0.8-1.2 μm.

[0029] The fuzz 21 is mainly formed from loose, pilling, or split yarns. The fuzz reduction treatment can reduce the impact on the canvas (for applying paint). The micro-roughening layer is also mainly formed from fuzz. This micro-roughening layer can maintain a moderate roughness on the canvas surface and improve the stability of paint adhesion on the canvas.

[0030] Step D: The semi-finished canvas that has undergone the fuzz reduction treatment in Step C is hot-air set. The hot-air setting temperature is controlled at 100-150℃ and the time is 20-50s, thus forming the TC yarn canvas.

[0031] In step D, the temperature of the hot air setting can be controlled at 120-130℃ for 30-40 seconds using PID control. This hot air setting improves the dimensional stability of the canvas, resulting in superior performance for this TC yarn canvas.

[0032] In addition, a pre-shrinking finishing process can be used to control the shrinkage rate of the finished product to ≤1.2%, further improving the flatness of the canvas surface; To further improve the quality of the finished product, the preparation method also includes step E, which involves a comprehensive color difference test on the formed TC yarn canvas to ensure that the color difference ΔE ≤ 1.5.

[0033] A spectrophotometer can be used for full-frame color difference detection and AI visual detection methods to ensure that the color difference ΔE ≤ 1.5.

[0034] In summary, the TC yarn canvas and its preparation method disclosed in this application improve the adhesion of paint by setting a high density of weft and warp yarns on a thick canvas and creating uniform pinholes on a thin canvas. It does not use high-value fabrics or additives, and employs air-jet spinning, thus improving cost-effectiveness. Furthermore, it eliminates color contamination and further reduces color difference.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A type of TC yarn oil painting canvas, characterized in that: The TC yarn canvas includes a reinforcing body for enhancing pigment adhesion. The reinforcing body is woven from solid-color TC yarn, which is a blend of 65% polyester and 35% cotton. When the TC yarn canvas is a thick canvas with a thickness greater than or equal to the rated value M, the total number of warp and weft yarns per unit area of ​​the reinforcing body is greater than N. When the TC yarn canvas is a thin canvas with a thickness less than the rated value M, the reinforcing body is provided with uniformly spaced pinholes with a diameter of 0.1-0.3 mm.

2. The TC yarn canvas according to claim 1, characterized in that: The rated value M is 1.5-2.0 mm, the total number N is 50-150, and the diameter of the pinhole gap is 0.1-0.2 mm.

3. The TC yarn canvas according to claim 1, characterized in that: The TC yarn canvas also includes a micro-roughened layer, which is disposed on the end face of the reinforcing body, and the thickness of the micro-roughened layer is less than 0.2 mm.

4. A method for preparing TC yarn oil painting canvas according to any one of claims 1-3, characterized in that, include: Step A: First, select solid-color TC yarn and prepare solid-color sizing agent and constant temperature drying cylinder to prepare for air-jet spinning; Step B: The solid-color TC yarn is blended by air-jet spinning. By controlling the weaving parameters in the air-jet yarn, semi-finished canvases of different thicknesses with high adhesion are produced. Step C: Perform a fuzz reduction treatment on the semi-finished canvas while maintaining the surface roughness Ra of the semi-finished canvas at 0.6-1.4μm; Step D: The semi-finished canvas that has undergone the fuzz reduction treatment in Step C is hot-air set. The hot-air setting temperature is controlled at 100-150℃ and the time is 20-50s, thus forming the TC yarn canvas.

5. The preparation method according to claim 4, characterized in that, The preparation method further includes step E, which involves a comprehensive color difference test on the formed TC yarn canvas to ensure that the color difference ΔE ≤ 1.

5.

6. The preparation method according to claim 4, characterized in that: In step A, a special testing process for colored fibers and yellow-white yarn is established, and white TC yarn without impurities is selected; the temperature fluctuation of the constant temperature drying cylinder is kept within ±2℃ through segmented control.

7. The preparation method according to claim 4, characterized in that: In step B, the air-jet spinning is an air-jet spinning with a yarn evenness CV value ≤ 2.5%, and the weaving parameters include the ratio density of warp and weft yarns and the yarn tension fluctuation value, wherein the yarn tension fluctuation value is 80-100N.

8. The preparation method according to claim 7, characterized in that: In step B, if the semi-finished canvas is a thick canvas, the adhesion of the thick canvas is increased by increasing the density of the warp and weft yarns; if the semi-finished canvas is a thin canvas, the adhesion of the thin canvas is increased by providing uniform pinhole gaps with a diameter of 0.1-0.2 mm in the reinforcing body.

9. The preparation method according to claim 4, characterized in that: In step C, the fuzz is reduced by applying an anti-fuzzing agent and performing singeing and shearing processes, so that the surface roughness Ra of the semi-finished canvas is 0.8-1.2μm.

10. The preparation method according to claim 4, characterized in that: In step D, the temperature of the hot air setting is controlled at 120-130℃ for 30-40 seconds using PID control.

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