# US 2009/0260768 A1 · Paper Comprising Fiber of Citrus Peel

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- Number: US 2009/0260768 A1
- Document ID: US20090260768A1
- Status: Published application
- Kind: A1
- Application number: 12/374,450
- Filed: 2007-03-20
- Published: 2009-10-22
- Earliest claimed: 2006-08-04
- Inventors: Hae Gon Kim
- Web page: https://patentgrep.com/patent/US20090260768A1

## CPC

- D21H 11/12: Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
- D21C 5/00: Other processes for obtaining cellulose, e.g. cooking cotton linters (obtaining fibres for spinning D01C); {Processes characterised by the choice of cellulose-containing starting materials}
- D21H: PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21C: PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR

## Abstract

A paper containing citrus peel fiber contains 20 to 60 weight parts of citrus peel fiber with respect to 100 weight parts of paper mulberry fiber. The citrus peel fiber is a peel fiber of one selected from the group consisting of mandarin orange, lemon, orange, Kiyomi and Dekopon. The paper containing citrus peel fiber is excellent in tensile strength, tear strength, bursting strength and folding endurance, and has superior preservability with pH close to neutrality. The paper containing citrus peel fiber of the invention also has a yellowish and/or reddish aesthetic color, excellent tactile sensation and high vapor transmission, and thus is adequate to be used as high grade wall paper and window paper. Furthermore, since the paper containing citrus peel fiber of the invention is manufactured by using by-products created in the course of processing citruses, it is possible to reduce manufacturing costs as well as decrease waste, thereby preventing pollution.

## Claims

### Claim 1

A paper comprising 20 to 60 weight parts of citrus peel fiber and 100 weight parts of paper mulberry fiber.

### Claim 2 (depends on 1)

The paper according to claim 1, wherein the citrus peel fiber is prepared by cooking citrus peels in a sodium hydroxide solution to remove cellulose oil therefrom, cleaning the cooked citrus peels, and beating the cleaned citrus peels together with water in a beater.

### Claim 3 (depends on 1, 2)

The paper according to claim 1 or 2, wherein the citrus peel fiber is a peel fiber of one selected from the group consisting of mandarin orange, lemon, orange, Kiyomi and Dekopon.