阅读说明：本技术 一种双瓦楞再生皮结构及其制备方法和应用 (Double-corrugated regenerated leather structure and preparation method and application thereof ) 是由 陈诗杰 于 2019-09-24 设计创作，主要内容包括：本发明涉及一种双瓦楞再生皮结构及其制备方法和应用,其中所述一种双瓦楞再生皮结构,包括两张瓦楞片,所述两张瓦楞片的大小相同,横截面为振幅和周期分别相同的正弦波形,所述两张瓦楞片上、下对称设置,且位于上部的瓦楞片的波谷与位于下部的瓦楞片的波峰缝合固定；其中,所述瓦楞片包括N张瓦楞再生皮,所述N张瓦楞再生皮由N张浸泡后重叠放置且正面朝向一致的再生皮经瓦楞模具压制而成,且所述瓦楞片的厚度小于N张再生皮厚度的加和值；所述瓦楞片中,相邻的瓦楞再生皮之间通过胶粘固定。本申请所述的双瓦楞再生皮结构,在兼具再生皮优点的同时,具有一定的强度,可作为一种全新的材料应用于桌、椅、凳等家具中。(The invention relates to a double-corrugated regenerated leather structure and a preparation method and application thereof, wherein the double-corrugated regenerated leather structure comprises two corrugated sheets, the two corrugated sheets have the same size, the cross sections of the two corrugated sheets are sine waveforms with the same amplitude and cycle respectively, the two corrugated sheets are arranged symmetrically from top to bottom, and the wave trough of the corrugated sheet positioned at the upper part and the wave crest of the corrugated sheet positioned at the lower part are sewn and fixed; the corrugated sheet comprises N pieces of corrugated reclaimed leather, the N pieces of corrugated reclaimed leather are formed by pressing N pieces of reclaimed leather which are soaked and then overlapped, and the front faces of the reclaimed leather face to face the same direction through a corrugated die, and the thickness of the corrugated sheet is smaller than the sum of the thicknesses of the N pieces of reclaimed leather; in the corrugated sheet, adjacent corrugated regenerated skins are fixed by gluing. The application double-corrugated regenerated leather structure has certain strength while having the advantages of regenerated leather, and can be applied to furniture such as tables, chairs and stools as a brand-new material.)

1. The double-corrugated regenerated leather structure is characterized by comprising two corrugated sheets, wherein the two corrugated sheets have the same size, the cross sections of the two corrugated sheets are sine waves with the same amplitude and the same period, the two corrugated sheets are arranged symmetrically up and down, and the wave trough of the corrugated sheet positioned at the upper part is sewn and fixed with the wave crest of the corrugated sheet positioned at the lower part;

the corrugated sheet comprises N pieces of corrugated reclaimed leather, the N pieces of corrugated reclaimed leather are formed by pressing N pieces of reclaimed leather which are soaked and then overlapped, and the front faces of the reclaimed leather face to face the same direction through a corrugated die, and the thickness of the corrugated sheet is smaller than the sum of the thicknesses of the N pieces of reclaimed leather;

in the corrugated sheet, adjacent corrugated regenerated skins are fixed by gluing.

2. The double-corrugated reclaimed leather structure of claim 1, wherein an anti-rebound layer is further arranged between the two corrugated sheets.

3. The double-corrugated recycled leather structure according to claim 1, wherein N is a natural number greater than or equal to 3, and the ratio of the height difference between the crests and the troughs of the corrugated sheet to the thickness of the corrugated sheet is 5-8: 1.

4. The double-corrugated reclaimed leather structure of any one of claims 1 to 3, further comprising a surface-corrugated reclaimed leather, wherein the surface-corrugated reclaimed leather is fixed to the upper surface of the upper corrugated sheet and/or the lower surface of the lower corrugated sheet by gluing, and the surface-corrugated reclaimed leather is attached to the outer surface of the corrugated sheet adhered thereto.

5. The method for preparing a double-corrugated regenerated leather structure as claimed in any one of claims 1 to 4, characterized by comprising the following steps:

1) and cutting: cutting N regenerated leathers with the same size and larger area than the corrugated mould;

2) and skin soaking: placing the N regenerated skins in water, soaking for 20-40 minutes, slowly taking out, and draining;

3) and first pressing die: flatly spreading N regenerated skins on a female die of a corrugated die, pressing a male die, and pressing under the pressure of 8-12 tons;

4) and first drying: opening a corrugated mold, taking out the N regenerated leathers, placing the N regenerated leathers on a corrugated drying mold, naturally airing the N regenerated leathers for 20-30 minutes under the conditions of sunlight insolation prevention and ventilation, and then integrally turning over the N regenerated leathers and airing the N regenerated leathers for 20-30 minutes, thus repeatedly operating for 3-4 times;

5) every two adjacent regenerated leathers in the N regenerated leathers are fixed by gluing;

6) and pressing for the second time: placing the N regenerated leathers into a corrugating die again, and pressing under the pressure of 8-12 tons;

7) and drying for the second time: opening a corrugated mold, taking out the N regenerated skins, placing the N regenerated skins on a corrugated drying mold, naturally airing for 20-30 minutes under the conditions of sunlight exposure prevention and ventilation, turning over the N regenerated skins and airing for 20-30 minutes, and repeating the steps until the N regenerated skins are dried to obtain corrugated sheets;

8) and butt-joint: 2 corrugated sheets with the same size and specification are selected and sewn into a double-corrugated regenerated leather structure.

6. The method for preparing a double-corrugated reclaimed leather structure according to claim 5, wherein before the foaming, the method further comprises the step of fixing the edges of the N reclaimed leathers by gluing or clamping.

7. The method of making a double-corrugated reclaimed leather structure according to claim 5, wherein after the second drying, the method further comprises cutting the corrugated sheet neatly along the edges of the mold by using a cutter.

8. The method for manufacturing a double-corrugated regenerated leather structure according to claim 5, wherein the corrugating mold comprises a female mold and a male mold which are mated with each other, and the distance between the female mold and the male mold is 0.7-0.8 times of the sum of the thicknesses of the N regenerated leathers in the first press molding and the second press molding.

9. The method for preparing a double-corrugated reclaimed leather structure according to claim 5, wherein after the butt-jointing, a surface-layer corrugated reclaimed leather is adhered to the outer surface of the one or two corrugated sheets after the butt-jointing.

10. Use of the double corrugated recycled leather structure of any of claims 1 to 4 as a load bearing structure or auxiliary load bearing structure in furniture.