Three-dimensional printing method for random areas and laminated lines and vamps of random areas and laminated lines

Abstract

The three-dimensional printing method comprises the steps that a printing area is arranged on a textile, modeling is conducted according to a pre-designed three-dimensional pattern, slicing and layering are conducted on modeling, different gray scale proportions are set for the lines in the layering effect design, then layering structure information is input into a 3D printing machine, and the three-dimensional printing area is obtained. After the 3D printing machine reads, printing is carried out on the printing area, the white ink proportion of the lines extruded by the printing machine is affected by different gray scale proportions of the lines in the printing process, the viscosity and concentration of a printing material can be affected by the white ink proportion, and then the lines printed on the printing area are different in height, so that the fabric achieves different textures and stereoscopic impression; and unique design and visual effect are shown.

Description

Technical Field

[0001] The present invention relates to the technical field of three-dimensional printing, and particularly to a three-dimensional printing method for domain-dependent and laminated lines and its shoe upper. Background Art

[0002] With the improvement of the national economic level and the progress of technology, consumers' requirements for three-dimensional patterns on textiles are also increasing day by day. They not only require environmentally friendly printing raw materials, but also require comfortable handfeel, clear and vivid patterns, three-dimensional sense, and the ability to achieve customization of personal taste.

[0003] AINEST is a free knitting process that has been gradually applied to the manufacture of three-dimensional patterns on textiles. It works by pre-setting anchor pins so that the hot-melt yarn can bypass the anchor pins and finally be fixed by hot pressing or other methods to form a knitting effect different from that of weaving and knitting. However, its process is complex, the number of anchor pins is limited, and the yarn can only go in a straight line from point to point, not in a curve. The line structure is single, the overlapping area of the lines is multiple hot-melt filaments, the nodes will be very thick, and the hot-melt yarn is not easy to dye.

[0004] Therefore, fabric producers have proposed to apply 3D printing technology to the manufacture of three-dimensional patterns on textiles. 3D printing technology can directly design a 3D model on a computer, then use software for slicing and layer-by-layer processing, and finally use a 3D printer for printing. It has the characteristics of simple process, short production cycle, and fast product update, which has enabled the rapid development of 3D printing fabrics formed by the combination technology of 3D printing and fabrics. In the existing 3D printing fabrics, the heights of the lines are the same, and the line layering effect is not obvious enough. Summary of the Invention

[0005] Therefore, it is necessary to provide a three-dimensional printing method for domain-dependent and laminated lines to solve the above problems.

[0006] To achieve the above object, the present invention provides a three-dimensional printing method for domain-dependent and laminated lines, which includes the following steps:

[0007] Set a printing area on the surface of the textile;

[0008] Construct a three-dimensional model according to the pre-designed three-dimensional pattern;

[0009] Perform slicing and layer-by-layer processing on the three-dimensional model, including setting the parameter information and printing path for each layer. The parameter information includes the line gray scale ratio, and at least one layer has a different line gray scale ratio from other layers;

[0010] The 3D printer reads the sliced and layer-by-layer structure, and according to the parameter information, controls the printing path to print on the printing area of the textile to form a blank fabric with laminated lines of different heights;

[0011] The above-mentioned greige cloth is dried to obtain a textile with a three-dimensional pattern.

[0012] Further, in the step of setting a printing area on the surface of the textile, at least part of the surface of the textile is flat, and the printing area is set on the flat surface.

[0013] Further, in the step of slicing and layering the three-dimensional model, including setting parameter information and a printing path for each layer, where the parameter information includes the line gray-scale ratio, and at least one layer has a different line gray-scale ratio from other layers, the slicing and layering of the three-dimensional model is divided into three layers, which are successively divided into a bottom layer, a micro three-dimensional layer, and a three-dimensional layer from bottom to top.

[0014] Further, the line gray-scale ratios in the parameter information of the bottom layer, the micro three-dimensional layer, and the three-dimensional layer are all different.

[0015] Further, the proportion of white in the line gray-scale ratios in the parameter information of the bottom layer, the micro three-dimensional layer, and the three-dimensional layer gradually increases.

[0016] Further, the proportion of white in the bottom layer is 20%-40%; the proportion of white in the micro three-dimensional layer is 60%-80%; the proportion of white in the three-dimensional layer is 80%-100%.

[0017] Further, in the step of slicing and layering the three-dimensional model, including setting parameter information and a printing path for each layer, where the parameter information includes the line gray-scale ratio, and at least one layer has a different line gray-scale ratio from other layers, the parameter information further includes the line shape, and the line shape is formed by splicing one or more of a straight line, a broken line, and a curve.

[0018] Further, in the step of slicing and layering the three-dimensional model, including setting parameter information and a printing path for each layer, where the parameter information includes the line gray-scale ratio, and at least one layer has a different line gray-scale ratio from other layers, the parameter information further includes the line width.

[0019] Further, in the step of the 3D printer reading the sliced and layered structure, controlling the printing path according to the parameter information and printing on the textile to form a greige cloth with line layers of different heights stacked, it further includes spraying colors onto the lines to form a printed layer.

[0020] An upper is cut and formed from a textile with a three-dimensional pattern, and the textile with a three-dimensional pattern is made by performing the above-mentioned three-dimensional printing method of random fields and stacked lines.

[0021] Different from the prior art, the above technical solution adopts the method of setting a printing area on the textile. First, a three-dimensional pattern is modeled according to a pre-designed one, and the model is sliced and layered. Different gray-scale ratios are set for the lines in the layered effect design. Then, the layered structure information is input into a 3D printer. After the 3D printer reads it, printing is carried out on the printing area. During the printing process, different gray-scale ratios of the lines affect the proportion of white ink extruded by the printer. The proportion of white ink will affect the viscosity and concentration of the printing material, and further realize different heights of the lines printed on the printing area, so as to make the fabric achieve different textures and three-dimensional senses, showing unique designs and visual effects. Brief Description of the Drawings

[0022] Figure 1 It is a schematic flow chart of a three-dimensional printing method with domain-dependent and stacked lines according to the present invention;

[0023] Figure 2 It is a schematic structural diagram of a textile with a three-dimensional pattern made by a three-dimensional printing method with domain-dependent and stacked lines according to the present invention;

[0024] Figure 3 It is a schematic diagram of the gray-scale ratio of the lines in a three-dimensional printing method with domain-dependent and stacked lines according to the present invention;

[0025] Figure 4 It is a schematic structural diagram of a shoe upper according to the present invention.

[0026] Description of the Reference Numerals:

[0027] 10, base layer;

[0028] 20, micro three-dimensional layer;

[0029] 30, three-dimensional layer. Detailed Description of the Embodiment

[0030] To describe in detail the technical content, structural features, achieved objectives and effects of the technical solution, the following is a detailed description in conjunction with specific embodiments and with reference to the accompanying drawings.

[0031] Referring to "embodiments" in this context means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase "embodiment" that appears in various positions in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0032] Unless otherwise defined, the meanings of the technical terms used herein are the same as those commonly understood by those skilled in the technical field to which this application belongs; the use of relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0033] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that there can be three relationships. For example, A and / or B means: there is A, there is B, and there is both A and B at the same time. In addition, the character " / " in this text generally represents an "or" logical relationship between the associated objects before and after.

[0034] In this application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantitative, primary-secondary, or sequential relationships between these entities or operations.

[0035] Without further limitations, in this application, the expressions "including", "comprising", "having", or other similar expressions used in statements are intended to cover non-exclusive inclusion. These expressions do not exclude the possibility that there may be additional elements in the process, method, or product including the described elements. Thus, a process, method, or product including a series of elements may include not only those defined elements, but also other elements not explicitly listed, or elements inherent to such a process, method, or product.

[0036] Similar to the understanding in the "Patent Examination Guidelines", in this application, expressions such as "greater than", "less than", "exceeding", etc. are understood not to include the number itself; expressions such as "above", "below", "within", etc. are understood to include the number itself. In addition, in the description of the embodiments of this application, the meaning of "multiple" is two or more (including two), and similar expressions related to "many", such as "multiple groups", "multiple times", etc., are understood in the same way, unless otherwise specifically defined.

[0037] In the description of the embodiments of this application, the spatially related expressions used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiment or the drawing. It is only for the convenience of describing the specific embodiments of this application or for the reader to understand, and does not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of this application.

[0038] Unless otherwise clearly specified or defined, in the description of the embodiments of the present application, terms such as "installation", "connection", "attachment", "fixation", "setting", etc. shall be understood in a broad sense. For example, the "connection" may be a fixed connection, a detachable connection, or an integral setting; it may be a mechanical connection, an electrical connection, or a communication connection; it may be a direct connection or an indirect connection through an intermediate medium; it may be the communication between two components or the interaction relationship between two components. For those skilled in the art to which the present application pertains, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0039] See Figures 1-4 As shown, the present invention provides a three-dimensional printing method for fields and stacked lines. A printing area is set on a textile. First, a three-dimensional pattern is modeled according to a pre-designed one, and the model is sliced and layered. Different gray-scale ratios are set for the lines in the layered effect design. Then, the layered structure information is input into a 3D printer. After the 3D printer reads it, printing is performed on the printing area. During the printing process, the different gray-scale ratios of the lines affect the proportion of white ink extruded by the printer. The proportion of white ink affects the viscosity and concentration of the printing material, and further realizes different heights of the lines printed on the printing area (the higher the proportion of white ink, the higher the viscosity and concentration of the printing material, so that the lines formed during the printing process are also higher), so as to enable the fabric to achieve different textures and three-dimensional senses, showing unique designs and visual effects.

[0040] See Figure 1 and Figure 2 As shown, a three-dimensional printing method for fields and stacked lines is specifically described below. A three-dimensional printing method for fields and stacked lines includes the following steps:

[0041] S1. Set a printing area on the surface of the textile;

[0042] S2. Construct a three-dimensional model according to a pre-designed three-dimensional pattern;

[0043] S3. Perform slicing and layering processing on the three-dimensional model, including setting the parameter information and printing path for each layer. The parameter information includes the line gray-scale ratio, and at least one layer has a different line gray-scale ratio from other layers;

[0044] S4. The 3D printer reads the structure of the sliced and layered layers, and according to the parameter information, controls the printing path to print on the printing area of the textile to form a blank fabric with stacked lines of different heights;

[0045] The above blank fabric is dried to obtain a textile with a three-dimensional pattern.

[0046] As described above, a printing area is set on the surface of the textile, and the printing area satisfies that the 3D printing material can be printed and adhesively attached in this area. The textile can be a fabric formed by any process or a composite fabric composed of multiple fabrics. Its structure is not limited and can be a three-dimensional structure, a two-dimensional planar structure, etc. Its shape can be regular or irregular. The above-mentioned construction of the three-dimensional model can create a 3D model in 3D software according to a pre-designed three-dimensional pattern, or obtain an existing 3D model from an online model library or other sources. The above-mentioned line gray scale ratio refers to the ratio of the gray levels between black and white in an image or display, which represents the distribution of the gray levels between black and white, that is, the proportion of white ink in the 3D printer. The proportion of white ink affects the viscosity and concentration of the printing material, and thus determines the height of the lines printed on the printing area. The higher the proportion of white ink, the higher the viscosity and concentration of the printing material, so that the lines formed during printing are also higher. The above-mentioned 3D printer can be an inkjet machine platform system, and the spraying speed of the nozzles can be set. The nozzles are used to precisely spray 2D and 3D multi-layer water-based coating inks on the textile for printing, controlling the number of spraying layers of lines with different heights in different printing areas, forming overlapping lines with different heights, and thus forming different line height effects and clear line effects. The overlapping in the blank fabric with overlapping lines of different heights is the parallel overlapping, interweaving overlapping, complete overlapping, and partial overlapping of the lines of some adjacent layers in space after slicing and layering.

[0047] In step S1, that is, in the step of weaving the textile with a printing area, it is preferred that the printing area of the textile is a plane, that is, at least part of the surface of the textile is a plane, and the printing area is set on this plane. At least part of the surface of the textile is a plane, and setting the printing area on the plane can ensure that the printing area remains flat. Compared with 3D printing on a non-planar area, planar printing does not need to consider height and three-dimensional shape, so it can be operated and processed more easily, ensuring that the printed pattern is consistent with the pre-designed three-dimensional pattern without distortion or distortion.

[0048] In step S3, that is, in the step of slicing and layering the three-dimensional model, including setting the parameter information and printing path for each layer, and the parameter information includes the line gray scale ratio, and at least one layer has a different line gray scale ratio from other layers. In actual operation, the three-dimensional model can be divided into several layers according to actual needs. The more layers of slicing and layering, the more delicate the printed three-dimensional pattern, but the more time it takes for printing. To balance the printed three-dimensional pattern and printing time, it is preferred to divide the three-dimensional model into three layers. The following also takes three layers as an example to further elaborate on the three-dimensional printing method of the present invention.

[0049] The slicing and layering of the three-dimensional model is to divide the three-dimensional model into a bottom layer 10, a micro three-dimensional layer 20, and a three-dimensional layer 30 in sequence from bottom to top. The line gray-scale ratios in the parameter information of the bottom layer 10, the micro three-dimensional layer 20, and the three-dimensional layer 30 are all different. Even if the white ink proportion of the 3D printer when printing the bottom layer 10, the micro three-dimensional layer 20, and the three-dimensional layer 30 is different, the white ink proportion affects the viscosity and concentration of the printing material, and further makes the heights of the lines printed on the bottom layer 10, the micro three-dimensional layer 20, and the three-dimensional layer 30 different. By the heights of the lines printed differently, the heights of each layer are different, making the three-dimensional pattern printed have an obvious sense of hierarchy.

[0050] See Figure 3 and Figure 4 As shown, in some embodiments, the proportion of white in the line gray-scale ratio of the bottom layer 10, the micro three-dimensional layer 20, and the three-dimensional layer 30 can be gradually increased, that is, the white ink proportion of the 3D printer when printing the bottom layer 10, the micro three-dimensional layer 20, and the three-dimensional layer 30 is also gradually increased, so that the height of the line is gradually increased, and then the height of the layer is gradually increased; the gradually increasing layer height can increase the material bonding area of each layer, thereby increasing the overall strength of the three-dimensional pattern printed. Specifically, the white proportion of the bottom layer 10 can be 20%-40%; the white proportion of the micro three-dimensional layer 20 can be 60%-80%; the white proportion of the three-dimensional layer 30 can be 80%-100%, that is, when the 3D printer prints the bottom layer 10, the micro three-dimensional layer 20, and the three-dimensional layer 30, the white ink proportion of the bottom layer 10 can be 20%-40%, the white ink proportion of the micro three-dimensional layer 20 can be 60%-80%, and the white ink proportion of the three-dimensional layer 30 can be 80%-100%.

[0051] In step S3, that is, in the step of slicing and layering the three-dimensional model, including setting the parameter information and printing path of each layer, the parameter information includes the line gray-scale ratio, and in the step where at least one layer has a different line gray-scale ratio from other layers, the parameter information further includes the line shape, and the line shape is formed by splicing one or more of a straight line, a broken line, and a curve. Using the line shape for splicing can achieve more flexible design and construction. By adjusting the direction and connection method of the lines, various complex shapes and structures can be created to meet the specific three-dimensional pattern design requirements. In some embodiments, the external contour and internal structure of the three-dimensional pattern that only needs to be printed can be directly constructed by lines. Compared with solid construction, the printing time can be greatly shortened and the efficiency can be improved; at the same time, the density of the three-dimensional pattern printed can be reduced, thereby reducing the consumption of printing materials and saving costs.

[0052] In step S3, that is, in the step of slicing and layering the three-dimensional model, including setting the parameter information and printing path for each layer, where the parameter information includes the line gray scale ratio, and at least one layer has a different line gray scale ratio from other layers, the parameter information further includes the line width. By adjusting the width of the printed line, the accuracy and strength of the printed three-dimensional pattern can be better controlled. A thinner line width can achieve higher printing resolution and detail display, while a wider line can increase the structural strength and stability of the object. By controlling the line width, the accuracy and strength of the printed three-dimensional pattern are ensured.

[0053] In step S3, in the step where the 3D printer reads the structure of the sliced layers, controls the printing path according to the parameter information, and prints on the textile to form a blank fabric with line layers of different heights, it further includes spraying colors onto the lines to form a printed layer. By spraying colors onto the lines to form a printed layer, a clear line effect can be obtained, adding rich colors to the printed three-dimensional pattern. Through the colors of the printed layer, the layering effect is enhanced, highlighting the texture of the printed three-dimensional pattern. At the same time, by selecting specific color combinations and patterns, unique objects can be printed to meet the customization requirements under personal or specific needs. Of course, on special textiles, functions such as warning and safety signs can also be provided.

[0054] See Figure 4 As shown, a shoe upper is cut and formed from a textile with a three-dimensional pattern, and the textile with a three-dimensional pattern is made by implementing the steps of the above-mentioned three-dimensional printing method of domain-dependent and layered lines. According to an individual's foot shape and movement needs, a more fitting and comfortable shoe upper can be printed, and a higher degree of design freedom can be achieved. Unique patterns, structures, and textures can be printed according to various creative ideas, as well as personal needs and preferences, making the shoes more personalized and fashionable. In addition, the shoe upper made of the textile with a three-dimensional pattern is lighter than the traditional fabric with a three-dimensional pattern, which can reduce the overall weight of the shoes and improve the wearing comfort and flexibility.

[0055] It should be noted that although the above embodiments have been described in this article, the patent protection scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, any changes and modifications made to the embodiments described in this article, or equivalent structural or equivalent process transformations made using the content of the specification and drawings of the present invention, and directly or indirectly applying the above technical solutions to other related technical fields, are all included in the patent protection scope of the present invention.

Claims

1. A three-dimensional printing method with domain and laminated lines, characterized in that, It includes the following steps: Set a printing area on the surface of the textile; Construct a three-dimensional model according to a pre-designed three-dimensional pattern; Perform slicing and layering on the three-dimensional model, including setting parameter information and a printing path for each layer, where the parameter information includes the line gray-scale ratio, and at least one layer has a different line gray-scale ratio from other layers; The 3D printer reads the structure of the sliced and layered model, and controls the printing path to print on the printing area of the textile according to the parameter information to form a blank fabric with line layers of different heights; Dry the above-mentioned blank fabric to obtain a textile with a three-dimensional pattern.

2. The three-dimensional printing method with domain and stacked lines according to claim 1, characterized in that In the step of setting a printing area on the surface of the textile, at least part of the surface of the textile is flat, and a printing area is set on the flat surface.

3. The three-dimensional printing method with domain and stacked lines according to claim 1, characterized in that, In the step of performing slicing and layering on the three-dimensional model, including setting parameter information and a printing path for each layer, where the parameter information includes the line gray-scale ratio, and at least one layer has a different line gray-scale ratio from other layers, the three-dimensional model is sliced and layered into three layers, which are successively divided into a bottom layer, a micro three-dimensional layer, and a three-dimensional layer from bottom to top.

4. The three-dimensional printing method with domain and stacked lines according to claim 3, characterized in that, The line gray-scale ratios in the parameter information of the bottom layer, the micro three-dimensional layer, and the three-dimensional layer are all different.

5. The three-dimensional printing method with domain and stacked lines according to claim 3, characterized in that, The proportion of white in the line gray-scale ratios of the bottom layer, the micro three-dimensional layer, and the three-dimensional layer gradually increases.

6. The three-dimensional printing method with domain and stacked lines according to claim 5, characterized in that, The proportion of white in the bottom layer is 20%-40%; the proportion of white in the micro three-dimensional layer is 60%-80%; the proportion of white in the three-dimensional layer is 80%-100%.

7. The three-dimensional printing method with domain and laminated lines according to claim 1, characterized in that In the step of performing slicing and layering on the three-dimensional model, including setting parameter information and a printing path for each layer, where the parameter information includes the line gray-scale ratio, and at least one layer has a different line gray-scale ratio from other layers, the parameter information further includes the line shape, and the line shape is formed by splicing one or more of a straight line, a broken line, and a curve.

8. The three-dimensional printing method with domain and stacked lines according to claim 1, characterized in that In the step of performing slicing and layering on the three-dimensional model, including setting parameter information and a printing path for each layer, where the parameter information includes the line gray-scale ratio, and at least one layer has a different line gray-scale ratio from other layers, the parameter information further includes the line width.

9. The three-dimensional printing method with domain and stacked lines according to claim 1, characterized in that In the step of the 3D printer reading the structure of the sliced and layered model, controlling the printing path to print on the textile to form a blank fabric with line layers of different heights, it further includes spraying colors onto the lines to form a printing layer.

10. A shoe upper, characterized in that: Cut and form using the textile with a three-dimensional pattern, and the textile with a three-dimensional pattern is made by performing the steps of the three-dimensional printing method of random fields and stacked lines according to any one of claims 1-9.

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