阅读说明：本技术 一种皮料表面多色图案保护工艺及装饰产品 (Protection process for multicolor patterns on surface of leather and decorative product ) 是由 李英策 于 2019-10-11 设计创作，主要内容包括：本发明涉及皮料表面保护技术领域,提供一种皮料表面多色图案保护工艺,包括一下步骤：S1、准备皮料；S2、在皮料上制作所需要的多色图案；S3、在皮料的表面制作一层覆盖所述多色图案的柔性的透明保护层。通过在皮料表面形成一层柔性的透明保护层,这样既不影响皮料的柔性度,又也不影响皮料表面多色图案的展示,并且还能对皮料表面的多色图案进行保护,有效解决了皮料表面多色图案容易磨损的问题。(The invention relates to the technical field of leather surface protection, and provides a process for protecting multicolor patterns on the surface of leather, which comprises the following steps: s1, preparing leather; s2, manufacturing a needed multicolor pattern on the leather; s3, manufacturing a flexible transparent protective layer covering the multicolor pattern on the surface of the leather. Through forming the flexible transparent protective layer of one deck on the cladding surface, neither influence the flexibility degree of cladding like this, also do not influence the show of cladding surperficial polychrome pattern yet to can also protect the polychrome pattern on cladding surface, effectively solve the easy problem of wearing and tearing of cladding surperficial polychrome pattern.)

1. The protection process of the multicolor patterns on the surface of the leather is characterized by comprising the following steps of:

preparing a leather material;

making needed multicolor patterns on the leather;

and manufacturing a flexible transparent protective layer covering the multicolor pattern on the surface of the leather.

2. The process for protecting multicolor patterns on the surface of leather according to claim 1, wherein said transparent protective layer is made of TPU material.

3. The process for protecting multicolor patterns on the surface of leather according to claim 2, wherein said TPU material is adhered to the surface of said leather by hot melt adhesive.

4. The process for protecting multicolor patterns on the surface of leather according to claim 3, wherein the thickness of the TPU material is 0.05mm to 0.15 mm.

5. The process for protecting multicolor patterns on the surface of leather according to claim 4, wherein the TPU material is fixed on the surface of the leather by hot pressing the hot melt adhesive, the temperature of the hot pressing is 120-160 ℃, and the time of the hot pressing is 3-30 seconds.

6. The process for protecting multicolor patterns on the surface of leather according to claim 1, wherein said transparent protective layer is formed by spraying transparent paint material.

7. The process for protecting multicolor patterns on the surface of leather according to claim 6, wherein the transparent paint material is transparent PU paint.

8. The process for protecting multicolor patterns on the surface of leather according to any one of claims 1 to 7, wherein the multicolor patterns are formed on the surface of the leather by means of spray painting or silk printing.

9. A process for protecting multicolored patterns on the surface of leather according to any of claims 1-7, characterized in that said leather is microfiber leather.

10. A decorative product comprising a leather manufactured by the process for protecting a surface of a leather with a multicolor pattern according to any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of leather surface protection, in particular to a leather surface multicolor pattern protection process and a decorative product.

Background

At present, most patterns on the surface of leather are realized through a hot pressing process or a paper pattern process, the hot pressing process and the paper pattern process can only realize a single-color pattern effect, if a multi-color pattern effect is realized, a digital painting mode is generally adopted, but the painted patterns on the surface of the leather have poor wear resistance and are easy to wear in a short period, so that the attractiveness of products (such as protective cases and watch straps) made of the leather is influenced.

Disclosure of Invention

The invention aims to provide a process for protecting multicolor patterns on the surface of a leather material, and aims to solve the technical problem that the patterns on the surface of the leather material are easy to wear in the prior art.

In order to achieve the purpose, the invention adopts the technical scheme that: a protection process for multicolor patterns on the surface of leather comprises the following steps: s1, preparing leather; s2, manufacturing a needed multicolor pattern on the leather; s3, manufacturing a flexible transparent protective layer covering the multicolor pattern on the surface of the leather.

In one embodiment, the transparent protective layer is made of a TPU material.

In one embodiment, the TPU material is bonded to the surface of the skin by a hot melt adhesive.

In one embodiment, the TPU material is 0.05mm to 0.15mm thick.

In one embodiment, the TPU material is fixed on the surface of the leather material in a hot pressing mode, the hot pressing temperature is 120-160 ℃, and the hot pressing time is 3-30S.

In one embodiment, the transparent protective layer is formed by spraying a transparent paint material.

In one embodiment, the clear paint material is PU paint.

In one embodiment, the multicolor patterns are formed on the surface of the leather material in a spray painting or silk-screen printing mode.

In one embodiment, the sheath material is a microfiber sheath.

Another object of the present invention is to provide a device product, which includes a leather manufactured by the protection process of the multicolor pattern on the surface of the leather as described above.

The implementation of the multicolor pattern protection process for the surface of the leather material has at least the following beneficial effects:

according to the protection process for the multicolor patterns on the surface of the leather, the flexible transparent protective layer is formed on the surface of the leather, so that the flexibility of the leather is not influenced, the display of the multicolor patterns on the surface of the leather is not influenced, the multicolor patterns on the surface of the leather can be protected, and the problem that the multicolor patterns on the surface of the leather are easy to wear is effectively solved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic structural diagram of a process for protecting a multicolor pattern on a surface of a leather material according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of the cladding and the transparent protective layer provided in the embodiment of the present invention.

Reference numerals: 1. coating; 2. a multi-colored pattern; 3. and a transparent protective layer.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 and 2, an embodiment of the invention provides a process for protecting a multicolor pattern on a surface of a leather material, the process comprising the following steps:

s1, preparing a leather 1;

s2, manufacturing a needed multicolor pattern 2 on the leather 1;

s3, a flexible transparent protective layer 3 covering the multicolor pattern 2 is manufactured on the surface of the leather 1.

According to the protection process for the multicolor patterns on the surface of the leather, provided by the embodiment of the invention, the flexible transparent protection layer 3 is formed on the surface of the leather 1, so that the flexibility of the leather 1 is not influenced, the display of the multicolor patterns 2 on the surface of the leather 1 is not influenced, the multicolor patterns 2 on the surface of the leather 1 can be protected, and the problem that the multicolor patterns 2 on the surface of the leather 1 are easy to wear is effectively solved.

In step S1, the leather 1 is microfiber-reinforced leather, abbreviated as microfiber leather or pu (polyurethane) leather, and the microfiber leather has excellent wear resistance, aging resistance, softness, comfort and flexibility, so that a product made of the microfiber leather has good service life and comfort. In this embodiment, the decorative product made of the leather material 1 may be a watch strap or a protective case of an electronic product such as a mobile phone or a PAD.

In step S1, a plurality of products can be made from the same leather 1, which can improve the production efficiency of the products. Specifically, the process of preparing the leather 1 further comprises cutting the leather 1 to obtain the required shape and size.

Between the step S1 and the step S2, a step of cleaning the cut leather 1 is further included. Wherein the cut leather 1 is cleaned so as to form the multicolor pattern 2 on the surface of the leather 1 in step S2.

In step S2, a multicolor pattern 2 is formed on the surface of the leather 1 by inkjet printing or silk-screen printing. Specifically, multicolor ink is sprayed on the surface of the leather 1 through a digital printer to form the required multicolor pattern 2, or multicolor ink is silk-screened on the surface of the leather 1 through a silk screen printer to form the required multicolor pattern 2.

In step S2, after the multicolor pattern 2 is formed on the surface of the leather 1, the multicolor pattern 2 on the surface of the leather 1 is air-cooled to accelerate the curing rate of the multicolor pattern 2, so as to save the production time. The air cooling means that the surface of the leather 1 is blown by a fan to accelerate the curing rate of the multicolor pattern 2. Certainly, in order to further improve the air cooling rate, a heating wire or other heating equipment can be added between the fan and the leather 1 so as to heat the air blown out by the fan and achieve the purpose of accelerating the curing rate of the multicolor pattern 2, wherein the temperature for heating the air is about 60-70 ℃, so that the multicolor pattern 2 can be prevented from cracking, and the curing rate can be accelerated. Of course, the multicolor pattern 2 may be cured by ultraviolet rays.

In step S3, in a first molding manner of the transparent protection layer 3, the transparent protection layer 3 is made of TPU (Thermoplastic Urethane elastomer) material. The TPU material has the advantages of good wear resistance, oil resistance, high toughness and high flexibility. Therefore, the transparent protective layer 3 can well protect the multicolor patterns 2 and has the advantages of long service life and convenient cleaning.

In step S3, the TPU material is bonded to the surface of the leather 1 by the transparent hot melt adhesive. The transparent hot melt adhesive has the advantages of high bonding speed, low cost, strong toughness, repeated bending without cracking, high transparency and wide bonding property, and can firmly bond the transparent protective layer 3 on the surface of the leather 1. In other embodiments, the TPU material is adhered to the surface of the leather 1 through a transparent hot melt adhesive film.

In step S3, the thickness of the selected TPU material is 0.05mm to 0.15mm, preferably 0.1 mm. The TPU material can be relatively manufactured into a thinner state due to the advantage of good wear resistance, and the thickness of the TPU material can be correspondingly increased according to the use condition of the product, such as friction with other objects frequently required, so that the aim of protecting the multicolor pattern 2 is fulfilled.

In step S3, the TPU material is fixed on the surface of the leather 1 by hot-pressing the hot melt adhesive, specifically, the TPU material and the leather 1 are hot-pressed by a hot-pressing mold, a hot press, or a laminating machine, the hot-pressing temperature is 120 to 160 ℃, and the hot-pressing time is 3 to 30S, so that the melting effect and uniformity of the hot melt adhesive can be effectively ensured.

In step S3, in the second forming manner of the transparent protective layer 3, the transparent protective layer 3 is formed by spraying a transparent paint material, and the spraying of the transparent paint has the advantage of high forming efficiency, which can improve the production efficiency of the product. The transparent paint is sprayed on the surface of the leather 1 back and forth for 3-4 times through a paint spraying machine so as to ensure that the transparent paint completely covers the multicolor patterns 2 on the surface of the leather 1. Wherein the transparent paint material is PU (Polyurethane) paint. The PU paint has the advantages of high hardness, high adhesive force, good durability and wear resistance after being cured into a film, so that the multicolor pattern 2 on the surface of the leather 1 can be effectively protected by spraying the PU paint.

In this embodiment, the prepared leather 1 is first surface-cleaned to ensure the adhesion of ink. Then the leather 1 is conveyed to a screen printer or a digital printer to enter a drawing machine for drawing a multicolor pattern 2, after the multicolor pattern 2 is drawn, the leather 1 is solidified on the multicolor pattern 2 through a drying device such as a fan, after the multicolor pattern 2 is completely solidified, a layer of hot melt adhesive is coated on the surface of the leather 1, then a TPU material layer is hot-pressed on the surface of the leather 1 in a laminating machine or a hot press die, or transparent paint is sprayed on the surface of the leather 1, then the leather 1 is cooled again to accelerate the solidification rate of the hot melt adhesive or the transparent paint, so that the leather 1 with a transparent protective layer 3 is obtained, and then the leather 1 is cut, molded and other subsequent procedures are carried out, so as to obtain the shape of a required product.

The embodiment of the invention also provides a decorative product which comprises the leather manufactured by adopting the multi-color pattern protection process on the surface of the leather, and the decorative product can be an electronic watch, a bracelet, a mobile phone, a PAD, a bag and the like.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.