Intermittent three-dimensional printing method and textile thereof

Abstract

The invention discloses an intermittent three-dimensional printing method and a textile thereof. The method comprises the following steps: step (1), ink-jet printing is carried out in a to-be-printed area of base cloth by using a three-dimensional printing composition, and curing is carried out, so that a first three-dimensional printing layer is formed; (2) ink-jet printing is carried out in the to-be-printed area of the base cloth through a three-dimensional printing composition, the three-dimensional printing composition is overlaid on the first three-dimensional printing layer and cured, and a second three-dimensional printing layer is formed; (3) repeating the step (2) for n times on the second three-dimensional printing layer to form an (n + 2) th three-dimensional printing layer, and further forming a three-dimensional printing structure, wherein n is greater than or equal to 1 and is an integer. The three-dimensional printing structure is prominent in three-dimensional height, stable in three-dimensional structure, rich in shape and color and fine and smooth in texture.

Description

Technical Field

[0001] The present invention relates to the technical field of textiles, and specifically to an intermittent three-dimensional printing method and its textiles. Background Art

[0002] Three-dimensional printing is a printing method that prints bright-colored patterns on fabrics while increasing the three-dimensional sense of the patterns, thereby improving the overall aesthetics.

[0003] Currently, most three-dimensional printing is achieved through offset printing. To achieve height, for each layer of sizing paste brushed, the fabric needs to be removed for drying and then moved back to continue brushing the next layer, so that the sizing paste can be continuously stacked without spreading. However, the existing offset printing requires making a screen plate, with slow efficiency, and the formed three-dimensional effect has fewer colors and less delicate texture.

[0004] In recent years, due to the fact that the print head is non-contact with the medium surface during digital inkjet printing and there will be no deformation due to heat and pressure, digital inkjet printing has been widely used in the textile industry, especially on fabrics for clothing and footwear. However, existing digital inkjet printing directly prints multiple layers on the fabric and then dries them. The formed three-dimensional effect has a single color, less delicate texture, and weak three-dimensional sense. Summary of the Invention

[0005] Other features and advantages of the present invention will be described in the following specification, and will be partially obvious from the specification or understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structures specifically pointed out in the specification and other specification drawings.

[0006] The objective of the present invention is to overcome the above deficiencies, and the present invention provides an intermittent three-dimensional printing method and its textiles.

[0007] The technical solution adopted by the present invention to solve its technical problems is: an intermittent three-dimensional printing method, including the following steps:

[0008] Step (1), using a three-dimensional printing composition to perform inkjet printing on the area to be printed of the base fabric and curing it to form the first three-dimensional printing layer;

[0009] Step (2), using a three-dimensional printing composition to perform inkjet printing on the area to be printed of the base fabric and overlapping or interleaving and stacking it on top of the first three-dimensional printing layer and curing it to form the second three-dimensional printing layer;

[0010] Step (3), repeating step (2) n times on the second three-dimensional printing layer to form the (n + 2)-th three-dimensional printing layer, and further forming a three-dimensional printing structure;

[0011] Wherein, n ≥ 1 and n is an integer.

[0012] The present invention uses a three-dimensional printing composition to perform inkjet printing on a base fabric and cure it to form a first three-dimensional printing layer. Then, the three-dimensional printing composition is used to perform inkjet printing and curing on the first three-dimensional printing layer to form a second three-dimensional printing layer, and so on, repeating the inkjet printing and curing until all the three-dimensional printing layers are completed, finally obtaining a textile with a three-dimensional printing structure having multiple three-dimensional printing layers. The three-dimensional printing structure of the present invention has a prominent three-dimensional height, a stable three-dimensional structure, rich shapes and colors, and delicate textures.

[0013] In some embodiments, before step (1), the printing area of the base fabric needs to be pretreated, specifically:

[0014] Spray a pretreatment liquid in the printing area of the base fabric.

[0015] In some embodiments, the curing is air-drying or drying.

[0016] In some embodiments, the air-drying is natural cooling.

[0017] In some embodiments, the drying temperature is 23°C - 150°C.

[0018] In some embodiments, the three-dimensional printing composition is a single-color water-soluble ink or a multi-color water-soluble ink.

[0019] The present invention also provides a textile, including a base fabric and a three-dimensional printing structure located on the base fabric, and the three-dimensional printing structure is printed by the intermittent three-dimensional printing method described above. The present invention forms a three-dimensional printing structure with multiple three-dimensional printing layers through multiple digital inkjet printing and intermittent printing and stacking, making the three-dimensional height of the three-dimensional printing structure more prominent, the structure between the three-dimensional printing layers more closely fitted, the shapes and colors of the three-dimensional printing structure more rich, and the textures on the three-dimensional printing structure more delicate.

[0020] In some embodiments, in each adjacent two three-dimensional printing layers, the area of the three-dimensional printing layer located at the top layer is less than or equal to the area of the three-dimensional printing layer located at the bottom layer. The present invention sprays a larger area for the three-dimensional printing layer at the bottom layer and a smaller area for the three-dimensional printing layer at the top layer, which can prevent the ink from spreading during multiple stacking printings and affecting the three-dimensional strength of the three-dimensional printing structure, and can ensure that the shapes and colors of each three-dimensional printing layer do not interfere with each other.

[0021] In some embodiments, the three-dimensional printing layers of each layer overlap or cross-stack.

[0022] In some embodiments, when the stereolithographic layers overlap, the shapes of the stereolithographic layers in each layer are the same, and the center points are on the same vertical line. The stacking arrangement between the stereolithographic layers in the present invention is neat, greatly enhancing the three-dimensional regularity of the stereolithographic structure and achieving a higher three-dimensional effect than single-pass printing.

[0023] In some embodiments, when the stereolithographic layers in each layer are cross-stacked, their shapes are not the same, but there are intersection points. The stacking between the stereolithographic layers in the present invention is crosswise, making the stereolithographic structure more random, having a sense of hierarchy of cross-overlap, and the hierarchical effect is obvious.

[0024] In some embodiments, the layer heights of the stereolithographic layers in each layer are not the same. The present invention sets the heights of the stereolithographic layers in each layer to be different, which can meet the requirements of different shape structure designs of the stereolithographic layers.

[0025] In some embodiments, the layer height of the same stereolithographic layer is not the same. The present invention sets the height of the same stereolithographic layer to be different, which can highlight the concavo-convex sense of the stereolithographic structure while ensuring the three-dimensional height of the stereolithographic structure.

[0026] In some embodiments, the surface of the stereolithographic layer is provided with a texture. By providing a texture on the surface of the stereolithographic layer in the present invention, different functions are achieved. First, the texture plays a role in fixing and connecting between the stereolithographic layers, making the connection between layers more stable and fitting; furthermore, the texture on the surface of the stereolithographic layer can increase the aesthetic effect and concavo-convex sense.

[0027] By adopting the above technical solutions, the beneficial effects of the present invention are:

[0028] The present invention uses a stereolithographic composition to perform inkjet printing on a base fabric and cure it to form a first stereolithographic layer. Then, the stereolithographic composition is used to perform inkjet printing on the first stereolithographic layer and cure it to form a second stereolithographic layer, and so on, repeating inkjet printing and curing until all stereolithographic layers are completed, finally obtaining a textile with a stereolithographic structure having multiple stereolithographic layers. The three-dimensional height of the stereolithographic structure of the present invention is prominent, the three-dimensional structure is stable, the shape and color are rich, and the texture is delicate.

[0029] The present invention forms a stereolithographic structure with multiple stereolithographic layers through multiple digital inkjet printing and interval printing and stacking, making the three-dimensional height of the stereolithographic structure more prominent, the structure between the stereolithographic layers more closely fitted, the shape and color of the stereolithographic structure more rich, and the texture on the stereolithographic structure more delicate.

[0030] In the present invention, the area of the bottom three-dimensional printing layer is printed larger, and the area of the top three-dimensional printing layer is printed smaller, which can prevent the ink from spreading during multiple stacked printing and affecting the three-dimensional strength of the three-dimensional printing structure, and can ensure that the shapes and colors of the individual three-dimensional printing layers do not interfere with each other.

[0031] In the present invention, the heights, shapes, colors, etc. of the three-dimensional printing layers of each layer can be set to be the same or different, so that the three-dimensional printing structure has individuality.

[0032] In the present invention, the three-dimensional printing layers can be stacked in different stacking methods to form a three-dimensional printing structure with high regularity or randomness.

[0033] In the present invention, a texture is provided on the surface of the three-dimensional printing layer. The texture not only plays a role in fixing and connecting between the three-dimensional printing layers, making the connection between layers more stable and fitting, but also can increase the aesthetic effect and uneven feeling on the surface of the three-dimensional printing layer.

[0034] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and do not limit the present disclosure.

[0035] Undoubtedly, such objects of the present invention and other objects will become more apparent after the detailed description of the preferred embodiments described in the following with multiple drawings and illustrations.

[0036] To make the above and other objects, features, and advantages of the present invention more obvious and understandable, one or more preferred embodiments are specifically exemplified below, and in conjunction with the accompanying drawings, the detailed description is as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0038] In the drawings, the same components are denoted by the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only one or several embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on such drawings.

[0040] Figure 1 Schematic diagram of the three-dimensional printing method process for some embodiments of the present invention;

[0041] Figure 2 Structural schematic of a textile according to some embodiments of the present invention Figure 1 ;

[0042] Figure 3 Structural schematic of a textile according to some embodiments of the present invention Figure 2 ;

[0043] Figure 4 Structural schematic of a three - dimensional printing structure according to some embodiments of the present invention Figure 1 ;

[0044] Figure 5 Structural schematic of a three - dimensional printing structure according to some embodiments of the present invention Figure 2 。

[0045] Reference numerals:

[0046] 1, base fabric; 2, three - dimensional printing structure; 21, three - dimensional printing layer; 23, texture. Detailed implementation manners

[0047] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with specific implementation manners. It should be understood that the specific implementation manners described herein are only used to explain the present invention, but not to limit the present invention.

[0048] In addition, in the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0049] In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium. It can be the communication inside two elements or the interaction relationship between two elements. However, indicating a direct connection means that there is no connection relationship constructed through a transition structure between the two connected main bodies, and only a connection structure is used to connect them to form a whole. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0050] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0051] Referring to Figure 1 , Figure 1 is a schematic flow chart of a three-dimensional printing method according to some embodiments of the present invention.

[0052] According to some embodiments of the present invention, the present invention provides an intermittent three-dimensional printing method. The method includes the following steps:

[0053] Step (1), inkjet printing and curing using a three-dimensional printing composition within the printing area of the base fabric 1 to form the first three-dimensional printing layer 21;

[0054] Step (2), inkjet printing using a three-dimensional printing composition within the printing area of the base fabric 1 and overlapping or cross-stacking on top of the first three-dimensional printing layer 21 and curing to form the second three-dimensional printing layer 21;

[0055] Step (3), repeating step (2) n times on the second three-dimensional printing layer 21 to form the (n + 2)-th three-dimensional printing layer 21, thereby forming the three-dimensional printing structure 2;

[0056] wherein, n ≥ 1 and n is an integer.

[0057] The present invention uses a three-dimensional printing composition to inkjet print and cure on the base fabric 1 to form the first three-dimensional printing layer 21. Then, a three-dimensional printing composition is used to inkjet print and cure on the first three-dimensional printing layer 21 to form the second three-dimensional printing layer 21, and so on, repeating the inkjet printing and curing until all the three-dimensional printing layers 21 are completed, finally obtaining a textile with a three-dimensional printing structure 2 having multiple three-dimensional printing layers 21. The three-dimensional height of the three-dimensional printing structure 2 of the present invention is prominent, the three-dimensional structure is stable, the shape and color are rich, and the texture 22 is delicate.

[0058] According to some embodiments of the present invention, optionally, before step (1), the area to be printed on the base fabric 1 needs to be pretreated, specifically: spraying a pretreatment liquid on the area to be printed on the base fabric 1. Before the first printing in the present invention, spraying a pretreatment liquid on the area to be printed on the base fabric 1 can prevent the three-dimensional printing composition from spreading and reduce the impact of curing on the base fabric 1.

[0059] According to some embodiments of the present invention, optionally, the curing is air-drying or drying. If the number of printing times is small, only short-term air-drying is required, and the next printing can be carried out after the surface of the printing composition forms a coagulated film; if the number of printing times is large, drying is required to make the surface of the three-dimensional printing composition cure more fully to form sufficient support for subsequent printing. Drying can be carried out by heating methods such as hot air and electric heating tubes, and the temperature is adjusted according to the temperature tolerance of the base fabric 1.

[0060] According to some embodiments of the present invention, optionally, air-drying is natural cooling.

[0061] According to some embodiments of the present invention, optionally, the drying temperature is 23°C - 150°C.

[0062] According to some embodiments of the present invention, optionally, the three-dimensional printing composition is a single-color water-soluble ink or a multi-color water-soluble ink.

[0063] Optionally, all the three-dimensional printing compositions used for the three-dimensional printing layers 21 are single-color water-soluble inks or multi-color water-soluble inks.

[0064] Optionally, the three-dimensional printing compositions used for different layers of the three-dimensional printing layers 21 can be single-color water-soluble inks or multi-color water-soluble inks.

[0065] Optionally, the three-dimensional printing compositions used for the same layer of the three-dimensional printing layers 21 can be single-color water-soluble inks or multi-color water-soluble inks.

[0066] Refer to Figures 1-5 , Figure 1 is a schematic flow chart of the three-dimensional printing method according to some embodiments of the present invention; Figure 2 is a schematic structure diagram of a textile according to some embodiments of the present invention Figure 1 ; Figure 3 is a schematic structure diagram of a textile according to some embodiments of the present invention Figure 2 ; Figure 4 is a schematic structure diagram of the three-dimensional printing structure according to some embodiments of the present invention Figure 1 ; Figure 5 is a schematic structure diagram of the three-dimensional printing structure according to some embodiments of the present invention Figure 2 .

[0067] According to some embodiments of the present invention, the present invention further provides a textile, including a base fabric 1 and a three-dimensional printing structure 2 located on the base fabric 1, and the three-dimensional printing structure 2 is printed by the intermittent three-dimensional printing method described above. The method includes the following steps:

[0068] Step (1), inkjet printing and curing using a three-dimensional printing composition within the area to be printed on the base fabric 1 to form a first three-dimensional printing layer 21;

[0069] Step (2), inkjet printing using a three-dimensional printing composition within the area to be printed on the base fabric 1 and overlapping or cross-stacking on top of the first three-dimensional printing layer 21 and curing to form a second three-dimensional printing layer 21;

[0070] Step (3), repeating step (2) n times on the second three-dimensional printing layer 21 to form the (n + 2)-th three-dimensional printing layer 21, thereby forming the three-dimensional printing structure 2;

[0071] wherein, n ≥ 1 and n is an integer.

[0072] The present invention forms a three-dimensional printing structure 2 with multiple three-dimensional printing layers 21 through multiple digital inkjet and spaced printing and stacking, making the three-dimensional height of the three-dimensional printing structure 2 more prominent, the structure between the three-dimensional printing layers 21 more closely fitted, the shape and color of the three-dimensional printing structure 2 more abundant, and the texture 22 on the three-dimensional printing structure 2 more delicate.

[0073] According to some embodiments of the present invention, optionally, in each adjacent two three-dimensional printing layers 21, the area of the three-dimensional printing layer 21 located at the top layer is less than or equal to the area of the three-dimensional printing layer 21 located at the bottom layer. The present invention sprays a larger area for the three-dimensional printing layer 21 at the bottom layer and a smaller area for the three-dimensional printing layer 21 at the top layer, which can prevent the ink from spreading during multiple stacking prints and affecting the three-dimensional sense intensity of the three-dimensional printing structure 2, and can ensure that the shapes and colors of the respective three-dimensional printing layers 21 do not interfere with each other.

[0074] According to some embodiments of the present invention, the three-dimensional printing layers of each layer overlap or cross-stack.

[0075] According to some embodiments of the present invention, when the three-dimensional printing layers of each layer overlap, the shapes of the three-dimensional printing layers of each layer are the same, and the center points are on the same vertical line. The stacking arrangement between the three-dimensional printing layers in the present invention is neat, greatly enhancing the three-dimensional regular sense of the three-dimensional printing structure, and achieving a higher three-dimensional effect than single-time printing.

[0076] According to some embodiments of the present invention, when the three-dimensional printing layers of each layer are cross-stacked, their shapes are inconsistent, but there are intersection points. The stacking between the three-dimensional printing layers of each layer in the present invention is crosswise, making the three-dimensional printing structure more flexible, having a sense of layering with cross-overlapping, and the layering effect is obvious.

[0077] According to some embodiments of the present invention, optionally, the shapes of the three-dimensional printing layers 21 of each layer are the same.

[0078] According to some embodiments of the present invention, optionally, the layer heights of the three-dimensional printing layers 21 of each layer are inconsistent. The present invention sets the heights of the three-dimensional printing layers 21 of each layer to be inconsistent, which can meet the requirements of different shape structure designs of the three-dimensional printing layers 21.

[0079] According to some embodiments of the present invention, optionally, the layer heights of the three-dimensional printing layers 21 of each layer are the same.

[0080] According to some embodiments of the present invention, optionally, the layer height of the same three-dimensional printing layer 21 is inconsistent. The present invention sets the height of the same three-dimensional printing layer 21 to be inconsistent. While ensuring the three-dimensional height of the three-dimensional printing structure 2, it can also highlight the concavo-convex feeling of the three-dimensional printing structure 2.

[0081] According to some embodiments of the present invention, optionally, the layer height of the same three-dimensional printing layer 21 is the same.

[0082] According to some embodiments of the present invention, optionally, the surface of the three-dimensional printing layer 21 is provided with a texture 22. By providing the texture 22 on the surface of the three-dimensional printing layer 21 in the present invention, different functions are achieved. First, the texture 22 plays a role in fixed connection between the three-dimensional printing layers 21, making the connection between layers more stable and fitting; furthermore, the texture 22 can increase the aesthetic effect and concavo-convex feeling on the surface of the three-dimensional printing layer 21.

[0083] Embodiment 1

[0084] This embodiment provides an intermittent three-dimensional printing method. The method includes the following steps:

[0085] [[ID=**27**]]Step (1), pre-treating the area to be printed of the base fabric 1 with a pre-treatment liquid;

[0086] [[ID=**30**]]Step (2), inkjet printing and curing with a three-dimensional printing composition in the area to be printed of the base fabric 1 to form the first three-dimensional printing layer 21;

[0087] [[ID=**33**]]Step (3), inkjet printing with a three-dimensional printing composition in the area to be printed of the base fabric 1 and overlapping or cross-stacking on the first three-dimensional printing layer 21 and then curing to form the second three-dimensional printing layer 21;

[0088] Step (4): Repeat step (3) n times on the second three-dimensional printing layer 21 to form the (n + 2)-th three-dimensional printing layer 21, thereby forming the three-dimensional printing structure 2;

[0089] where n ≥ 1 and n is an integer.

[0090] In this embodiment, curing can be achieved by air drying or baking. Specifically, if the number of printing times is small, only short-term air drying is required, and the next printing can be carried out after the surface of the printing composition forms a coagulated film; if the number of printing times is large, baking is needed to cure the surface of the three-dimensional printing composition more thoroughly to provide sufficient support for subsequent printing. Baking can be carried out by heating methods such as hot air and electric heating tubes, and the temperature is adjusted according to the temperature tolerance of the base fabric 1.

[0091] In this embodiment, the three-dimensional printing composition is a single-color water-soluble ink or a multi-color water-soluble ink.

[0092] In the present invention, the three-dimensional printing composition is used to perform inkjet printing on the base fabric 1 and then cured to form the first three-dimensional printing layer 21. Then, the three-dimensional printing composition is used to perform inkjet printing on the first three-dimensional printing layer 21 and cured to form the second three-dimensional printing layer 21, and so on. Inkjet printing and curing are repeated until all the three-dimensional printing layers 21 are completed, and finally a textile with a three-dimensional printing structure 2 having multiple three-dimensional printing layers 21 is obtained. The three-dimensional printing structure 2 of the present invention has a prominent three-dimensional height, a stable three-dimensional structure, rich shapes and colors, and delicate texture 22. In addition, before the first printing, a pretreatment liquid is sprayed in the printing area of the base fabric 1 to prevent the three-dimensional printing composition from spreading and reduce the impact of curing on the base fabric 1.

[0093] Example 2

[0094] This embodiment provides a textile, including a base fabric 1 and a three-dimensional printing structure 2 located on the base fabric 1. The three-dimensional printing structure 2 is printed by the intermittent three-dimensional printing method described above. The method includes the following steps:

[0095] Step (1): Use the three-dimensional printing composition to perform inkjet printing on the printing area of the base fabric 1 and cure it to form the first three-dimensional printing layer 21;

[0096] Step (2): Use the three-dimensional printing composition to perform inkjet printing on the printing area of the base fabric 1 and overlap it on the first three-dimensional printing layer 21 and then cure it to form the second three-dimensional printing layer 21;

[0097] Step (3): Repeat step (2) n times on the second three-dimensional printing layer 21 to form the (n + 2)-th three-dimensional printing layer 21, thereby forming the three-dimensional printing structure 2;

[0098] Wherein, n≥1 and n is an integer.

[0099] In this embodiment, in every two adjacent three-dimensional printing layers 21, the area of the top three-dimensional printing layer 21 is less than or equal to the area of the bottom three-dimensional printing layer 21.

[0100] In this embodiment, the shapes of the three-dimensional printing layers 21 of each layer are the same, and the center points are on the same vertical line.

[0101] In this embodiment, the shapes of the three-dimensional printing layers 21 of each layer may be the same or different.

[0102] In this embodiment, the layer heights of the three-dimensional printing layers 21 of each layer may be the same or different.

[0103] In this embodiment, the layer height of the same three-dimensional printing layer 21 may be the same or different.

[0104] In this embodiment, a texture 22 is provided on the surface of the three-dimensional printing layer 21.

[0105] In this embodiment, through multiple digital inkjet printing with intervals and stacking, a three-dimensional printing structure 2 with multiple three-dimensional printing layers 21 is formed, making the three-dimensional height of the three-dimensional printing structure 2 more prominent, the structure between the three-dimensional printing layers 21 more closely fitted, the shape and color of the three-dimensional printing structure 2 more abundant, and the texture 22 on the three-dimensional printing structure 2 more delicate. In addition, the stacking of the three-dimensional printing layers 21 of each layer is neatly arranged, greatly enhancing the three-dimensional regularity of the three-dimensional printing structure 2.

[0106] In this embodiment, the area of the bottom three-dimensional printing layer 2121 is printed larger, and the area of the top three-dimensional printing layer 2121 is printed smaller, which can prevent the ink from spreading during multiple stacking printing and affecting the three-dimensional strength of the three-dimensional printing structure 22, and can ensure that the shapes and colors of the three-dimensional printing layers 2121 do not interfere with each other.

[0107] Embodiment 3

[0108] This embodiment provides a textile, including a base cloth 1 and a three-dimensional printing structure 2 located on the base cloth 1. The three-dimensional printing structure 2 is printed by the intermittent three-dimensional printing method described above. The method includes the following steps:

[0109] Step (1), using a three-dimensional printing composition to perform inkjet printing and curing in the printing area of the base cloth 1 to form the first three-dimensional printing layer 21;

[0110] Step (2): Use the stereolithography composition to perform inkjet printing within the printing area of the base fabric 1, superimpose it on the first stereolithography layer 21, and cure it to form the second stereolithography layer 21.

[0111] Step (3): Repeat Step (2) n times on the second stereolithography layer 21 to form the (n + 2)-th stereolithography layer 21, thereby forming the stereolithography structure 2.

[0112] Wherein, n ≥ 1 and n is an integer.

[0113] In this embodiment, in each adjacent pair of stereolithography layers 21, the area of the stereolithography layer 21 at the top layer is less than or equal to the area of the stereolithography layer 21 at the bottom layer.

[0114] In this embodiment, the layers of the stereolithography layers 21 are cross-stacked.

[0115] In this embodiment, the shapes of the layers of the stereolithography layers 21 can be the same or different.

[0116] In this embodiment, the layer heights of the layers of the stereolithography layers 21 can be the same or different.

[0117] In this embodiment, the layer height of the same stereolithography layer 21 can be the same or different.

[0118] In this embodiment, a texture 22 is provided on the surface of the stereolithography layer 21.

[0119] In this embodiment, through multiple digital inkjet and spaced printing and stacking to form the stereolithography structure 2 with multiple stereolithography layers 21, the three-dimensional height of the stereolithography structure 2 is more prominent, the structure between the stereolithography layers 21 is more closely fitted, the shape and color of the stereolithography structure 2 are more abundant, and the texture 22 on the stereolithography structure 22 is more delicate. In addition, the stacking between the layers of the stereolithography layers 21 is crosswise, making the stereolithography structure 2 more random and having a sense of cross-overlapping hierarchy.

[0120] In this embodiment, the area of the stereolithography layer 21 at the bottom layer is printed larger, and the area of the stereolithography layer 21 at the top layer is printed smaller, which can prevent the ink from spreading during multiple stacking printing and affecting the three-dimensional sense intensity of the stereolithography structure 2, and can ensure that the shapes and colors of the individual stereolithography layers 21 do not interfere with each other.

[0121] It should be understood that the embodiments disclosed in the present invention are not limited to the specific processing steps or materials disclosed herein, but should extend to equivalent alternatives of such features understood by those of ordinary skill in the relevant art. It should also be understood that the terms used herein are for the purpose of describing particular embodiments only and do not imply limitation.

[0122] As used herein, the term "embodiment" means that a particular feature or characteristic described in connection with an embodiment is included in at least one embodiment of the present invention. Thus, the phrase "an embodiment" or "embodiments" that appear throughout the specification do not necessarily all refer to the same embodiment.

[0123] In addition, the described features or characteristics may be combined in any other suitable manner in one or more embodiments. In the foregoing description, some specific details are provided, such as thickness, quantity, etc., to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the relevant art will appreciate that the present invention may be practiced without one or more of the above specific details or may be implemented using other methods, components, materials, etc.

Claims

1. An intermittent three-dimensional printing method, characterized in that, It includes the following steps: Step (1), inkjet printing and curing in the printing area to be printed on the base fabric using a stereolithography composition to form a first stereolithography layer; Step (2), inkjet printing in the printing area to be printed on the base fabric using a stereolithography composition and overlapping or interleaving and stacking it on top of the first stereolithography layer and curing to form a second stereolithography layer; Step (3), repeating step (2) n times on the second stereolithography layer to form an (n + 2)-th stereolithography layer, thereby forming a stereolithography structure; wherein, n ≥ 1 and n is an integer.

2. The intermittent three-dimensional printing method according to claim 1, wherein Before step (1), the printing area to be printed on the base fabric needs to be pretreated. Specifically: Spray a pretreatment liquid in the printing area to be printed on the base fabric.

3. The intermittent three-dimensional printing method according to claim 1, characterized in that, Curing is air drying or drying.

4. The intermittent three-dimensional printing method according to claim 3, characterized in that, Air drying is natural cooling.

5. The intermittent three-dimensional printing method according to claim 3, wherein The drying temperature is 23°C - 150°C.

6. The intermittent three-dimensional printing method according to claim 1, characterized in that The stereolithography composition is a single-color water-soluble ink or a multi-color water-soluble ink.

7. A textile, characterized in that, It includes a base fabric and a stereolithography structure located on the base fabric, and the stereolithography structure is printed by the intermittent stereolithography method described in any one of claims 1 - 6.

8. The textile according to claim 7, characterized in that, In each adjacent two stereolithography layers, the area of the stereolithography layer at the top layer is less than or equal to the area of the stereolithography layer at the bottom layer.

9. The textile according to claim 7, characterized in that, Each stereolithography layer overlaps or cross-stacks with each other.

10. The textile according to claim 7, characterized in that, When each stereolithography layer overlaps, the shapes of each layer of the stereolithography layer are the same, and the center points are on the same vertical line, achieving a higher three-dimensional effect than single spraying.

11. The textile according to claim 7, characterized in that, When each stereolithography layer cross-stacks, their shapes are inconsistent, but there are intersection points, and the hierarchical effect is obvious.

12. The textile according to claim 7, characterized in that, The layer heights of each stereolithography layer are inconsistent.

13. The textile according to claim 7, wherein The layer height of the same stereolithography layer is inconsistent.

14. The textile according to claim 1, characterized in that, The surface of the stereolithography layer is provided with textures.

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