Leather compound for hot-stamping labels

Abstract

The utility model relates to a leather compound with a hot stamping mark, which belongs to the technical field of compound leather materials and comprises a decorative layer, an elastic layer and a flame-retardant liner layer, the decorative layer, the elastic layer and the flame-retardant liner layer are sequentially compounded to form the flame-retardant compound, the decorative layer is made of leather, the elastic layer is made of soft polyurethane foam sponge, and the flame-retardant liner layer is made of soft polyurethane foam sponge. An epoxy resin adhesive layer is arranged between the decorative layer and the elastic layer for compounding, the epoxy resin adhesive layer is of a thermocuring adhesive type, the flame-retardant liner layer is obtained by carrying out high-temperature quenching treatment on a fabric, the fabric contains prestressed filaments, in the hot pressing process, the epoxy resin adhesive layer is a thermoset polymer, heat can be located at a logo position, and the flame-retardant liner layer is a flame-retardant liner layer. The epoxy resin adhesive layer is subjected to thermal fixation, the integrity of the logo mark is kept, meanwhile, the epoxy resin adhesive layer is located between the decorative layer and the elastic layer, external erosion can be effectively reduced, the durability of the logo mark is kept, and the logo mark is not prone to fading.

Description

Technical Field

[0001] This utility model relates to the field of composite leather material technology, specifically a hot-pressed labeling leather composite. Background Technology

[0002] Leather heat-pressing logos are a common technique used to emboss various patterns, text, or logos onto leather products. This technique not only enhances the aesthetic appeal of the product but also strengthens brand recognition.

[0003] The existing leather hot-press logo process mainly utilizes the principle of electric heating and temperature control. The heating tube heats the surface of the embossing mold, then a layer of setting glue is applied to the leather surface. Finally, the desired pattern or text is formed on the leather by applying a certain air pressure through the shape of the embossing mold.

[0004] However, while applying a layer of setting glue to the leather surface and then heat-pressing it can form a certain degree of hardening layer at the logo, the setting glue is easily eroded over long-term use, causing damage to the hardened layer at the logo and resulting in fading of the logo print. Therefore, in view of these issues, there is an urgent need to develop a heat-pressed label leather composite to meet the needs of practical use. Utility Model Content

[0005] The purpose of this invention is to provide a hot-pressed labeling leather composite to solve the above-mentioned defects.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A heat-pressed label leather composite includes a decorative layer, an elastic layer, and a flame-retardant padding layer. The decorative layer, elastic layer, and flame-retardant padding layer are sequentially composited to form a flame-retardant composite. The decorative layer is made of leather, the elastic layer is made of soft polyurethane foam, and an epoxy resin adhesive layer is provided between the decorative layer and the elastic layer for composite bonding. The epoxy resin adhesive layer is a thermosetting adhesive. The flame-retardant padding layer is obtained by rapidly cooling a fabric at high temperature. The fabric contains prestressed filaments.

[0008] As a further option, as described above, the decorative layer is composed of any one of tanned cowhide, PVC artificial leather, PU artificial leather, and recycled leather.

[0009] In the above description, as a further embodiment, the fabric is woven from glass fiber yarn and flame-retardant viscose yarn, wherein the glass fiber yarn and flame-retardant viscose yarn are respectively spun from glass fiber and flame-retardant viscose fiber; the glass fiber is formed into the prestressed filament after undergoing the high-temperature rapid cooling treatment.

[0010] As a further embodiment of the above description, the flame-retardant viscose yarn has a yarn count of 21S, and the glass fiber yarn has a yarn count of 80S.

[0011] As a further option, as described above, the weight of the flame-retardant liner is 215 g / m², and the width is 1.45 m.

[0012] The beneficial effects of this utility model are as follows:

[0013] The present application discloses a hot-pressed labeling leather composite. When the leather decorative layer is pressed by an external hot-pressing labeling machine, the leather decorative layer can be squeezed inward to form a recessed groove corresponding to the logo. At the same time, the epoxy resin adhesive layer is a thermosetting polymer. During the hot pressing process, the heat can be located at the logo to heat-fix the epoxy resin adhesive layer and maintain the integrity of the logo imprint.

[0014] Meanwhile, the epoxy resin adhesive layer, located between the decorative layer and the elastic layer, can effectively reduce external erosion, maintain the durability of the logo imprint, and prevent it from fading. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the layered structure of the hot-pressed labeling leather composite of the present invention;

[0016] Figure 2 This is a schematic diagram of the layered structure of the hot-pressed labeling leather composite described in this utility model after hot-pressing labeling;

[0017] In the diagram: 1-Decorative layer, 2-Elastic layer, 3-Epoxy resin adhesive layer, 31-Hardened layer, 4-Flame-retardant liner layer. Detailed Implementation

[0018] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0019] Please see Figure 1-2 The specific implementation of the hot-pressed leather composite includes a decorative layer 1, an elastic layer 2, and a flame-retardant padding layer 4. The decorative layer, elastic layer, and flame-retardant padding layer are sequentially composited to form a flame-retardant composite. The decorative layer 1 is made of leather, the elastic layer 2 is made of soft polyurethane foam, and an epoxy resin adhesive layer 3 is provided between the decorative layer 1 and the elastic layer 2 for composite bonding. The epoxy resin adhesive layer 3 is a thermosetting adhesive. The flame-retardant padding layer 4 is obtained by rapidly cooling a fabric at high temperature. The fabric contains prestressed filaments.

[0020] Preferably, the decorative layer 1 is composed of any one of tanned cowhide, PVC artificial leather, PU artificial leather and recycled leather.

[0021] When the external hot-pressing labeling machine presses the leather decorative layer 1, the leather decorative layer 1 can be extruded inward to form a recessed groove corresponding to the logo. At the same time, the epoxy resin adhesive layer 3 is a thermosetting polymer. During the hot pressing process, the heat can be located at the logo, which heats the epoxy resin adhesive layer 3 to form a hardened layer 31, maintaining the integrity of the logo imprint. Meanwhile, the epoxy resin adhesive layer 3 is located between the decorative layer 1 and the elastic layer 2, which can effectively reduce external erosion, maintain the durability of the logo imprint, and prevent it from fading.

[0022] After the logo is hot-pressed onto the leather decorative layer 1, an anti-corrosion layer (not shown) can be applied to the surface of the leather decorative layer 1 to further improve its corrosion resistance.

[0023] In the above description, as a further embodiment, the fabric is woven from glass fiber yarn and flame-retardant viscose yarn, wherein the glass fiber yarn and flame-retardant viscose yarn are respectively spun from glass fiber and flame-retardant viscose fiber; the glass fiber is formed into the prestressed filament after undergoing the high-temperature rapid cooling treatment.

[0024] When hot-pressed leather composites undergo high-temperature rapid cooling treatment, the fabric formed by combining glass fibers and adhesive substrates is subjected to high-temperature heating and rapid cooling. This process causes the glass fibers in the fabric to form a prestressed filament. Because the prestressed filament is obtained through high-temperature rapid cooling, it has a certain internal shrinkage stress locked in its internal structure. When the prestressed filament is heated again and is about to undergo thermal expansion, the tensile stress formed by the expansion force that causes it to form drips is offset by the aforementioned internal shrinkage stress. Under high-temperature conditions, the thermal expansion exhibited by the fabric due to this offset is less than that of traditional fabrics, thus improving the structural stability at high temperatures. The degree of deformation and softening of the local structure of the fabric under high temperature is reduced, so it can continuously bear the weight of the upper burning residue (drips) and support the molten drips with the fabric structure, thereby achieving an anti-drip effect.

[0025] Specifically, the flame-retardant viscose yarn has a count of 21S, the glass fiber yarn has a count of 80S, the flame-retardant lining layer 4 has a weight of 215g / m2, and a width of 1.45m.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A heat-pressed labeling leather composite, characterized in that, The product comprises a decorative layer, an elastic layer, and a flame-retardant padding layer, which are sequentially composited to form a flame-retardant composite. The decorative layer is made of leather, the elastic layer is made of soft polyurethane foam, and an epoxy resin adhesive layer is provided between the decorative layer and the elastic layer for bonding. The epoxy resin adhesive layer is a thermosetting adhesive. The flame-retardant padding layer is obtained by rapidly cooling a fabric at high temperature, and the fabric contains prestressed filaments.

2. The hot-pressed labeling leather composite according to claim 1, characterized in that: The decorative layer is composed of any one of tanned cowhide, PVC artificial leather, PU artificial leather, and recycled leather.

3. The hot-pressed labeling leather composite according to claim 1, characterized in that: The fabric is woven from glass fiber yarn and flame-retardant viscose yarn, which are respectively spun from glass fiber and flame-retardant viscose fiber; the glass fiber is subjected to the high-temperature rapid cooling treatment to form the prestressed filaments.

4. The hot-pressed labeling leather composite according to claim 3, characterized in that: The flame-retardant viscose yarn has a yarn count of 21S, and the glass fiber yarn has a yarn count of 80S.

5. The hot-pressed labeling leather composite according to claim 4, characterized in that: The flame-retardant lining layer has a basis weight of 215 g / m2 and a width of 1.45 m.

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