BR-102024018310-A2 - LEATHER STAMPING PROCESS USING LACE

Abstract

This patent application for invention pertains to the apparel sector and refers more specifically to a leather stamping process that notably uses lace as a mold to obtain low-relief prints on leather belts. This stamping process has a method of execution that does not depend on electrical energy or the use of chemicals applied to the material, providing a product that requires lower manufacturing costs, considerably impacting its final cost. Once stamped, the shape is permanent, making it resistant and durable.

Inventors

• HELENA CAVALCANTI GONÇALVES LIMA

Assignees

• HELENA CAVALCANTI GONÇALVES

Dates

Publication Date

20260317

Application Date

20240905

Claims (1)

1. 1) "LEATHER STAMPING PROCESS BY MEANS OF LACE", conceives a stamping process (5) on leather (1); characterized by being initiated by preparing the leather (1) of belt (2); the right side of the leather (1) is lightly moistened with water, spread by a sponge; then, a lace spacer (3) is placed on the moistened part of the leather (1); immediately afterwards, the two parts are inserted together into a calender (4), pressing them; after passing through the calender (4), the lace (3) is removed from the leather (1), finalizing the stamping process (5) on the leather (1).

Description

TECHNICAL FIELD OF THE INVENTION [001] This patent application for invention privilege pertains to the apparel sector, and refers more specifically to a leather stamping process, which notably uses lace as a mold, to obtain low-relief prints on leather belts. [002] This stamping process has a method of execution that does not depend on electrical energy or the use of chemicals applied to the material, providing a product that requires a lower manufacturing cost, considerably impacting its final cost. Once stamped, the shape is permanent, making it resistant and durable. HISTORY OF THE TECHNIQUE [003] A leather belt is a classic and versatile accessory, made from a natural and durable material. Besides its practical function of holding up trousers, skirts, or other clothing at the waist, it also serves as a fashion item, capable of enhancing and complementing one's look. There are several types of leather used to make belts, each with its own characteristics. Cowhide, for example, is very common and resistant, available in finishes such as smooth, textured, or aged. Aniline leather, which has a natural appearance and no coating, offers a smooth texture but is more susceptible to staining. Nubuck leather, sanded on the outside, has a velvety and soft texture. On the other hand, full-grain leather is high-quality, minimally processed, and retains most of its original texture. [004] Leather belts come in different styles, from classic and formal ones, which are thinner and have simple metal buckles, perfect for more elegant outfits, to casual ones, which are wider, have more elaborate buckles and may include details such as visible stitching or engravings. There are also Western-style belts, inspired by the Old West, often decorated with studs, engravings or embroidery, and vintage belts, which have a worn finish or a natural patina for an aged look. [005] To personalize and decorate leather belts, various design marking techniques are used, giving an artistic and unique touch to each piece. One of the most traditional techniques is engraving, where a tool or mold is pressed against the leather to create an embossed design. [006] Another technique is repoussé, which involves creating patterns or images in relief, usually done by hand with pointed tools, pushing and shaping the leather from the opposite side, giving a three-dimensional feel to the design. Pyrography leather uses a pyrography tool to burn the design onto the surface of the leather, resulting in dark, well-defined lines that contrast with the natural color of the material. State of the Art Analysis [007] We can find machinery available on the market that aims to stamp leather belts. In research carried out in specialized databases, documents were found, such as document no. PI 8900101-0, which deals with a "MACHINE FOR STAMPING LEATHER OR SYNTHETIC MATERIAL", the present application refers to a pneumatically operated stamping machine, with replaceable dies, which, in a single operation, stamps the perforation and the end finishing cut on leather or synthetic material belts. [008] Document No. BR 11 2023 021104-2, which deals with "A MACHINE FOR STAMPING LEATHER", the present disclosure refers to a module (100) for stamping a leather product (1) comprising a leather support sheet (2) having a surface finish layer of one or more partially cured coating layers. The module comprises an application means (10) for applying a protective film (4) over the partially cured layer (3) to form a laminate (5). The module also comprises a pressure group (20) including a stamping roller (21) having an outer surface with a relief structure (22) so as to stamp a negative of the surface relief structure onto the leather product, over the protective film. [009] Document No. PI 0705180-8, which deals with a "PROCESS FOR MAKING EMBROIDERY," describes a process for making embroidery by machine on different types of materials, such as: fabric, leather, TNT, EVA, synthetic leather, plastic (crystal), etc., resulting in products of varying sizes, shapes, and colors, for application on clothing, footwear, bags, belts, headbands, handicrafts, among others. It consists of programming an embroidery program for embroidery machines on a computer, which is executed directly on the chosen material, tied in such a way that the threads do not come loose (even when subjected to washing), and using the material itself as support for the embroidery. Once the embroidery is finished, the machine itself outlines the embroidery, notching it with a needle without thread, the cut being made by the embroidery machine itself or by manually detaching the embroidery. This process allows the product to be applied by gluing, manual or machine sewing, rivets, pins, hooks, etc. velcro, etc. [010] Although we find the present machinery, among others available on the market, they are dependent on electricity to operate the equipment. In some cases, the leather needs chemicals to conform to the designs