Photoetching colorful perfusion vamp and preparation process thereof

Abstract

The invention belongs to the technical field of vamps, and particularly relates to a photoetched colorful pouring vamp which comprises a vamp body and is characterized in that a decorating part is arranged on the vamp body, the decorating part comprises a bottom layer and a surface layer, the bottom layer is made of a PU material, the surface layer is made of a TPU material, the surface layer at least comprises two layers of covering films, the thickness of each covering film is 0.01-0.05 mm, and the thickness of each covering film is 0.01-0.05 mm. At least one decorative layer is clamped between the two layers of covering films, and the decorative layer is an ink layer. The decorative layer is clamped between the surface layers of the decorative parts, so that the vamps can show rich and changeable color effects, the fashion sense and individuation of shoes are enhanced, and the pursuit of consumers for unique appearances is met.

Description

Technical Field

[0001] The invention belongs to the technical field of shoe uppers, and in particular relates to a photolithography fantasy color perfusion shoe upper and a preparation process thereof. Background Art

[0002] PU (polyurethane, abbreviated as polyurethane) is mostly used in the production of shoe soles, and is rarely used in shoe uppers. The shoe uppers of traditional shoes are generally made of nylon, polyester, foam, leather or cotton textiles. The production process is generally made by sewing a single or multiple materials with a sewing machine or hot pressing with a high-frequency mold. It is rarely coated on the shoe upper, which can easily cause the shoe upper to turn yellow and crack. In addition, the surface treatment effect of the shoe upper by traditional technology is single, and it is difficult to print or engrave images, patterns, text and other information on the shoe upper, which is difficult to meet the needs of consumers. Summary of the invention

[0003] The invention discloses a photolithography magic color perfusion shoe upper and a preparation process thereof, which mainly solves the problem.

[0004] To achieve the above object, the present invention provides a photolithography fantasy color infusion shoe upper, comprising an upper body, on which a decorative piece is arranged, wherein the decorative piece comprises a bottom layer and a surface layer, wherein the bottom layer is made of PU material, and the surface layer is made of TPU material.

[0005] Preferably, the surface layer includes at least two layers of coating.

[0006] Preferably, the thickness of the coating is 0.01-0.05 mm.

[0007] Preferably, at least one decorative layer is sandwiched between the two layers of coating, and the decorative layer is an ink layer.

[0008] Preferably, the ink layer is one of a fantasy ink layer, a holographic ink layer, and a reflective ink layer.

[0009] Preferably, one side of the coating is printed or engraved with a decorative pattern.

[0010] Preferably, the upper body is woven from at least one hot-melt yarn.

[0011] Preferably, hot melt adhesive is provided between the bottom layer and the upper body.

[0012] Preferably, the present invention also provides a process for preparing a photolithographic colorful infusion shoe upper, characterized in that it comprises the following steps: S1: ink preparation: prepare the required ink; prepare the fantasy color ink; wherein the composition ratio of the fantasy color ink is 70%-80% of water-dispersible polyurethane, 2%-10% of inorganic pigment, and 10%-20% of additive; S2: Preparation of surface layer pieces: Cut the TPU film into pieces of mold shape and size by punching or laser engraving process, print colorful ink on the surface of the pieces, and put the whole piece into the oven for drying after each layer of ink is printed. The oven is used for drying at a temperature of 40-70 degrees, and air-dry for 2 hours after printing; S3: Preparation of decorative parts: Place the obtained surface layer pieces in the mold, heat the mold to 80-100 degrees, and evacuate the inside of the mold to make the surface layer pieces completely fit the bottom of the mold; use hydraulic filling technology to inject PU liquid into the mold, and after high-temperature foaming and cooling and molding, demold and take out the finished product; S4: Upper preparation: Place the upper body on a hot press, place decorative parts on its surface, and perform hot pressing on the upper and lower sides to fully bond the upper interlayers. After cooling, a finished upper is formed.

[0013] 10. A process for preparing a photolithography fantasy color perfusion shoe upper according to claim 9, characterized in that, in step S4, the hot pressing temperature of the upper layer of the shoe upper is 120°C, the hot pressing temperature of the lower layer of the shoe upper is 160°C, the pressure is 100kg / cm2, and the hot pressing time is 20-30s.

[0014] The technical solution provided by the present invention has at least the following technical effects: The present invention sandwiches a decorative layer on the surface layer of the decorative piece, so that the shoe upper can show rich and varied color effects, enhances the fashion sense and personalization of the shoes, and satisfies consumers' pursuit of unique appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 For the implementation of the present invention: 1. A schematic diagram of the structure of the upper; Figure 2 is a cross-sectional view of a decorative element according to embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the structure of a shoe upper according to Embodiment 2 of the present invention; Description of main reference numerals: 1. upper body; 2. hot melt adhesive area; 3. decorative part; 4. coating; 5. decorative layer; 6. bottom layer; DETAILED DESCRIPTION Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0017] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0018] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0019] Embodiment 1: Please refer to Figure 1-Figure 2 The present embodiment provides a photolithography iridescent infusion shoe upper, comprising an upper body 1, on which a decorative piece 3 is arranged, wherein the decorative piece 3 comprises a bottom layer 6 and a surface layer, wherein the bottom layer 6 is made of PU material, and the surface layer is made of TPU material, and the surface layer comprises two layers of coating 4, wherein the thickness of the coating 4 is 0.03 mm, and a decorative layer 5 is sandwiched between the two layers of coating 4, wherein the decorative layer 5 is an ink layer, and the ink layer is an iridescent ink layer, and hot melt adhesive is arranged between the bottom layer 6 and the upper body 1.

[0020] This embodiment also provides a process for preparing a photolithographic colorful infusion shoe upper, comprising the following steps: S1: ink preparation: prepare the required ink; prepare the fantasy color ink; wherein the composition ratio of the fantasy color ink is 70%-80% of water-dispersible polyurethane, 2%-10% of inorganic pigment, and 10%-20% of additive; S2: Preparation of surface layer pieces: Cut the TPU film 4 into pieces of the shape and size of the mold by punching or laser engraving, print colorful ink on the surface of the pieces, and put the whole piece into an oven for drying after each layer of ink is printed. The oven is used for drying at a temperature of 40-70 degrees, and air-dry for 2 hours after printing; S3: Preparation of decorative part 3: placing the obtained surface layer piece in the mold, heating the mold to 80-100 degrees, and evacuating the inside of the mold so that the surface layer piece is completely attached to the bottom of the mold; using hydraulic filling technology, injecting PU liquid into the mold, and demolding and taking out the finished product after high-temperature foaming and cooling and molding; S4: Preparation of the upper: Place the upper body 1 on a hot press, place the decorative piece 3 on its surface, set hot melt adhesive between the upper and the decorative piece 3, perform hot pressing on the upper and lower sides to make the upper interlayers fully bonded, and form a finished upper after cooling.

[0021] In step S4, the hot pressing temperature of the upper layer of the upper is 120° C., the hot pressing temperature of the lower layer of the upper is 160° C., the pressure is 100 kg / cm 2 , and the hot pressing time is 20-30 s.

[0022] [A photolithographic colorful infusion shoe upper according to embodiment 2 of the present invention] For simplicity of description, only the differences from the above-mentioned embodiment 1 are described.

[0023] The upper body 1 in this embodiment is woven from a hot-melt yarn, and its preparation process is as follows: S4: Upper preparation: Place the upper body 1 on a hot press, place the decorative piece 3 on its surface, set hot melt adhesive between the upper and the decorative piece 3, and hot press the upper and lower sides to make the upper interlayers fully bonded, and form a finished upper after cooling. In step S3, the hot pressing temperature of the upper layer is 140°C, the hot pressing temperature of the lower layer is 180°C, the pressure is 100kg / cm2, and the hot pressing time is 20-30s.

[0024] The present invention has at least the following advantages: Unique visual effect: Due to the use of the iridescent ink layer, the upper can show rich and varied color effects under the light, enhancing the fashion sense and personalization of the shoes and satisfying consumers' pursuit of a unique appearance.

[0025] Strong durability: The bottom layer 6 is made of PU material, which has excellent wear resistance and tear resistance, while the TPU coating 4 used in the surface layer provides an additional layer of protection, enhancing the overall durability of the upper and extending the service life of the shoe.

[0026] High comfort: The upper woven with hot-melt yarn has good air permeability and elasticity, can adapt to different foot shapes, and is comfortable to wear. At the same time, the combination of TPU coating 4 and PU bottom layer 6 also ensures that the upper maintains its beauty without sacrificing wearing comfort.

[0027] Environmental protection and energy saving: Environmentally friendly materials such as water-dispersible polyurethane are used in the preparation process of the fantasy ink, which reduces the emission of harmful substances and conforms to the modern environmental protection concept. In addition, the hot pressing process is more energy-saving and efficient than the traditional process.

[0028] Fine craftsmanship: Through high-tech means such as laser engraving and hydraulic filling technology, the accuracy and quality of the decorative parts 3 are ensured, making the upper more refined in details and improving the overall quality.

[0029] Strong hot pressing bonding: In the process of upper preparation, by setting reasonable hot pressing temperature, pressure and time, the strong bonding between the upper body 1 and the decorative part 3 is ensured, avoiding problems such as degumming or cracking during use. The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A photolithographic iridescent infusion shoe upper, comprising a shoe upper body (1), characterized in that: The upper body (1) is provided with a decorative piece (3), the decorative piece (3) comprising a bottom layer (6) and a surface layer, the bottom layer (6) is made of PU material, and the surface layer is made of TPU material.

2. The photolithography magic color perfusion shoe upper according to claim 1, characterized in that: The surface layer comprises at least two layers of coating (4).

3. The photolithography colored infusion shoe upper according to claim 2, characterized in that: The thickness of the coating (4) is 0.01-0.05 mm.

4. The photolithography magic color perfusion shoe upper according to claim 2, characterized in that: At least one decorative layer (5) is sandwiched between the two layers of coating (4), and the decorative layer (5) is an ink layer.

5. The photolithography magic color perfusion shoe upper according to claim 3, characterized in that: The ink layer is one of a fantasy ink layer, a holographic ink layer and a reflective ink layer.

6. The photolithography magic color perfusion shoe upper according to claim 1, characterized in that: One side of the coating (4) is printed or engraved with a decorative pattern.

7. The photolithography magic color perfusion shoe upper according to claim 1, characterized in that: The upper body (1) is woven from at least one hot-melt yarn.

8. The photolithography magic color perfusion shoe upper according to claim 1, characterized in that: Hot melt adhesive is provided between the bottom layer (6) and the upper body (1).

9. A process for preparing a photolithographic iridescent infusion shoe upper according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: ink preparation: prepare the required ink; prepare the fantasy color ink; wherein the composition ratio of the fantasy color ink is 70%-80% of water-dispersible polyurethane, 2%-10% of inorganic pigment, and 10%-20% of additive; S2: Preparation of surface layer pieces: Cut the TPU film (4) into pieces of the shape and size of the mold by punching or laser engraving, print colorful ink on the surface of the pieces, and put the whole piece into an oven for drying after each layer of ink is printed. The oven is used for drying at a temperature of 40-70 degrees. After printing, air dry for 2 hours; S3: Preparation of decorative parts (3): placing the obtained surface layer pieces in a mold, heating the mold to 80-100 degrees, and evacuating the inside of the mold so that the surface layer pieces are completely attached to the bottom of the mold; injecting PU liquid into the mold using hydraulic filling technology, and demolding and taking out the finished product after high-temperature foaming and cooling; S4: Preparation of the upper: Place the upper body (1) on a hot press, place the decorative piece (3) on its surface, and perform hot pressing on the upper and lower sides of the upper to ensure that the upper interlayers are fully bonded, and form a finished upper after cooling.

10. The process for preparing a photolithographic colorful infusion shoe upper according to claim 9, characterized in that: In step S4, the hot pressing temperature of the upper layer of the upper is 120° C., the hot pressing temperature of the lower layer of the upper is 160° C., the pressure is 100 kg / cm 2 , and the hot pressing time is 20-30 s.

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