CN215512723U

CN215512723U - Novel leather of waterborne PU surface decontamination

Info

Publication number: CN215512723U
Application number: CN202121310453.6U
Authority: CN
Inventors: 张建; 付茂波
Original assignee: Liaocheng Xinrunda Plastic Products Co ltd
Current assignee: Liaocheng Xinrunda Plastic Products Co ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2022-01-14
Anticipated expiration: 2031-06-11

Abstract

The utility model relates to the technical field of artificial leather, in particular to novel water-based PU surface decontamination leather. Including base cloth layer and the foaming layer of setting in base cloth layer top, the top on foaming layer is provided with the PU rete, the top on PU rete is provided with the surface treatment layer, the foaming intussuseption is filled with short carbon fiber, the material on surface treatment layer is the antifouling layer of nanometer, the below on base cloth layer is provided with lower floor's foaming layer, the foaming intussuseption of lower floor is filled with the aerogel. The utility model provides novel water-based PU (polyurethane) surface decontamination leather, which is characterized in that a traditional surface treatment layer is set as a nano antifouling layer, so that the hydrophobic antifouling capacity of the surface of the leather is effectively improved, and meanwhile, the short carbon fibers are added in a foaming layer and are matched with a lower foaming layer arranged at the lower layer of a base cloth layer and an aerogel, so that the wear resistance of the leather is effectively improved.

Description

Novel leather of waterborne PU surface decontamination

Technical Field

The utility model relates to the technical field of artificial leather, in particular to novel water-based PU surface decontamination leather.

Background

Artificial leather is a plastic product that looks and feels like leather and can replace it. Usually, the fabric is used as a substrate and coated with synthetic resin and various plastic additives. Mainly comprises three types of PVC artificial leather, PU artificial leather and PU synthetic leather. The back of the PU synthetic leather (polyurethane synthetic leather) is a cloth base (or a knitted cloth base) at present, is easy to melt by burning, has the advantages which cannot be compared with a plurality of PVC synthetic leathers, and is an ideal material for replacing natural leather.

The production method of the PU synthetic leather can be divided into three methods, namely a dry method, a wet method and a coagulation slow-release method. The dry process (also called coating process) is that PU resin is prepared into sol with certain solid content and certain viscosity, and the sol is coated on release paper as carrier, and the solvent is volatilized to form film through oven and controlling certain technological conditions of temperature, speed, etc. Then coating an adhesive layer on the surface of the PU synthetic leather, compounding the PU synthetic leather with base cloth, drying, curing, cooling, then stripping from release paper, finally carrying out processes such as printing treatment and the like to obtain the dry-process PU synthetic leather, and rewinding the release paper by a paper machine for reuse. And the wet method comprises the steps of directly soaking the base cloth into the prepared PU resin, washing and curing the base cloth by using a 25% dimethylformamide aqueous solution, washing the base cloth by using hot water, and finally drying and post-treating the base cloth to obtain the wet-method PU synthetic leather. The coagulation coating method is that the base cloth is soaked in PU resin, washed and cured, and then coated with the resin and post-treated, thus obtaining the PU synthetic leather by the coagulation coating method. Among them, dry-process synthesis of PU synthetic leather is currently the most common in China.

The existing PU leather has soft and natural gloss, soft hand feeling, excellent mechanical properties such as excellent bonding property with a base material, abrasion resistance, bending resistance, ageing resistance and the like. But the dirt-removing capability is poor, and particularly PU leather used on vehicles has higher probability of contacting greasy dirt. In addition, the conventional PU film is easily damaged by the touch of a hard object.

SUMMERY OF THE UTILITY MODEL

Aiming at the problem of poor antifouling capability of the PU leather, the utility model provides the novel waterborne PU surface decontamination leather which has the advantages of reasonable design, simple structure, convenient processing, strong tensile strength and antifouling effect.

In order to achieve the purpose, the technical scheme adopted by the utility model is that the novel water-based PU leather with the surface decontamination function comprises a base cloth layer and a foaming layer arranged above the base cloth layer, wherein a PU film layer is arranged above the foaming layer, a surface treatment layer is arranged above the PU film layer, short carbon fibers are filled in the foaming layer, the surface treatment layer is made of a nano antifouling layer, a lower foaming layer is arranged below the base cloth layer, and aerogel is filled in the lower foaming layer.

Preferably, the lower foamed layer is made of polyimide.

Preferably, a suede composite fabric is disposed below the lower foamed layer.

Preferably, the material of the foaming layer is polyimide or polyurethane.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. the utility model provides novel waterborne PU surface decontamination leather, which is characterized in that a traditional surface treatment layer is arranged as a nano antifouling layer, the hydrophobic antifouling capacity of the surface of the leather is effectively improved, meanwhile, the short carbon fibers are added in a foaming layer and are matched with a lower foaming layer arranged at the lower layer of a base cloth layer to be matched with the arrangement of aerogel, so that the improvement of the wear resistance of the leather is effectively realized, and meanwhile, the lower foaming layer is matched with the arrangement of aerogel, so that the aim of effective ventilation can be realized, and the obtained novel waterborne PU surface decontamination leather is softer and more comfortable.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are 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 labor.

FIG. 1 is a schematic view of the structure of the novel leather for aqueous PU surface decontamination provided in example 1;

in each of the above figures, 1, a base fabric layer; 2. a foamed layer; 21. short-cut carbon fibers; 3. a PU film layer; 4. a surface treatment layer; 5. a lower foaming layer; 51. an aerogel; 6. chamois leather fine hair composite material.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1, this embodiment provides a novel water-based PU surface decontamination leather, and aims to solve the technical problems of poor antifouling capability and poor wear resistance of the existing PU synthetic leather, for this reason, the embodiment provides a base fabric layer 1 and a foaming layer 2 disposed on the base fabric layer 1, a PU film layer 3 is disposed on the foaming layer 2, and a surface treatment layer 4 is disposed on the PU film layer 3, the above structures are common structures of the existing PU synthetic leather, so detailed description is not added in this embodiment, a key improvement is that a short carbon fiber 21 is filled in the foaming layer 2, the short carbon fiber 21 referred to in this embodiment is a carbon fiber with a length of 3mm and a diameter of 7 microns, so that adding the short carbon fiber into the foaming layer 2 does not increase the hardness of the foaming layer 2, but increases the tensile capability thereof, and further increases the wear resistance thereof, in order to improve the antifouling capability, the surface treatment layer 4 is made of a nano antifouling layer, specifically, a nano antifouling agent is sprayed on the surface of the PU film layer 3 by a spraying method, in this embodiment, the nano antifouling agent is an aqueous environment-friendly super-clean bright ceramic nano antifouling agent B liquid newly developed by the Qingdao Okai waterproof material factory, which is originally used for antifouling of the surface of the ceramic tile, but researches show that the nano antifouling agent can be sprayed on the surface of the leather to produce antifouling and hydrophobic effects.

In order to further provide the wear-resistant effect, in this embodiment, lower foaming layer 5 is disposed below base fabric layer 1, aerogel 51 is filled in lower foaming layer 5, and thus, while utilizing lower foaming layer 5 and then increasing the tensile strength, the use of aerogel 51 is matched, so that the effect is better, and in this embodiment, lower foaming layer 5 is made of polyimide. The foaming material furthest retains the characteristic of small density of the aerogel 51, has the density of less than 0.2g/cm3 and is very soft; meanwhile, polyimide has excellent mechanical properties, high temperature resistance and low temperature resistance, is non-toxic, keeps the breathable effect to a certain extent, and makes the effect closer to the leather effect, and in addition, the research of Suzhou nanotechnology and nanometer bionic research institute of Chinese academy of sciences also shows that aerogel 51 filled in a framework formed by polyimide also has super-strong hydrophobicity, so that the double-sided waterproof effect can be achieved.

In order to make the whole leather more similar to leather, and at the same time, form a package for the lower foaming layer 5, in this embodiment, the suede composite fabric 6 is disposed under the lower foaming layer 5, and the suede composite fabric 6 is fresh and elegant, and has the characteristics of beautiful appearance, bright color, uneasy fading, soft and glutinous hand feeling, good velvet feeling, softness and fineness, no pilling, good crease resistance, strong serviceability, easy finishing and good drapability, etc. the PU leather is made to be more leather-like.

The material of the foam layer 2 may be polyimide or a conventional polyurethane material in consideration of the characteristics of polyimide.

Through foretell setting, the effectual antifouling, wear-resisting, the tensile strength who improves the PU synthetic leather has improved the life of product, provides the guarantee for its permanent renewal.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims

1. The utility model provides a novel leather of waterborne PU surface decontamination, includes base cloth layer and sets up the foaming layer in the base cloth layer top, the top on foaming layer is provided with the PU rete, the top on PU rete is provided with the surface treatment layer, its characterized in that, the foaming intussuseption is filled with short carbon fiber, the material on surface treatment layer is the antifouling layer of nanometer, the below on base cloth layer is provided with lower floor's foaming layer, the intussuseption of lower floor's foaming is filled with the aerogel.

2. The novel water-based PU leather for surface decontamination according to claim 1, wherein the lower foaming layer is made of polyimide.

3. The novel water-based PU leather with surface decontamination according to claim 2, wherein a suede composite fabric is arranged under the lower foaming layer.

4. The novel water-based PU leather for surface decontamination according to claim 3, wherein the material of the foaming layer is polyimide or polyurethane.