Cosmetic container, inner lid with fiber sheet and method for manufacturing inner lid

Abstract

A cosmetic container to store a cosmetic with a viscosity in a range of 2,000 cP to 60,000 cP is provided. The container comprises a container body to store the cosmetic and an inner lid having a frame to be attached to an opening of the container body and covered with an elastic fiber sheet. The fiber sheet when attached to the frame with a static state has a visible light transmittance equal to or smaller than 1.8%, and when the fiber sheet is stretched from the static state to have an area as much as 1.05 times larger than that of the static state, the visible light transmittance of the fiber sheet become equal to or greater than 2.0%.

What is claimed is: 
     
         1 . A cosmetic container comprising:
 a container body to store a cosmetic with a viscosity in a range of 2,000 cP to 60,000 cP; and   an inner lid having a frame to be attached to an opening of the container body and covered with an elastic fiber sheet;   wherein the fiber sheet when attached to the frame with a static state has a visible light transmittance equal to or smaller than 1.8%, and when the fiber sheet is stretched from the static state to have an area as much as 1.05 times larger than that of the static state, the visible light transmittance of the fiber sheet become equal to or greater than 2.0%.   
     
     
         2 . The cosmetic container according to  claim 1 , wherein the fiber sheet is formed from braided fibers. 
     
     
         3 . The cosmetic container according to  claim 2 , wherein the fiber sheet is formed from warp knitting. 
     
     
         4 . The cosmetic container according to  claim 2  or  3 , wherein a main fiber of the fiber sheet is made of polyester or nylon, and a sub-fiber is made of polyurethane. 
     
     
         5 . The cosmetic container according to  claim 4 , wherein in the case that polyester is used as the main fiber, polyester is included equal to or greater than 85%. 
     
     
         6 . The cosmetic container according to  claim 4 , wherein in the case that nylon is used as the main fiber, nylon is included equal to or greater than 87%. 
     
     
         7 . An inner lid for a container body for storing a cosmetic,
 wherein the inner lid has a frame to be attached to an opening of the container body;   the fiber sheet when attached to the frame with a static state has a visible light transmittance equal to or smaller than 1.8%;   and when the fiber sheet is stretched from the static state to have an area as much as 1.05 times larger than that of the static state, the visible light transmittance of the fiber sheet become equal to or greater than 2.0%.   
     
     
         8 . A method for manufacturing an inner lid for cosmetic container comprising:
 selecting a flexible fiber sheet which has a visible light transmittance of equal to or less than 1.8% at a static state of the fiber sheet where the fiber sheet has been stretched from an initial sate of the fiber sheet to have an area (S 1 ) of 1.05 times larger than an area (S 0 ) at an initial state, said fiber sheet also having a visible light transmittance equal to or more than 2.0% when the fiber sheet is further stretched from the static state so as to have an area 1.05×S 1 ;   stretching the fiber sheet from the area S 0  to the area S 1 ; and   adhering a peripheral end surface of the fiber sheet, which is kept to the stretched static state, to an end surface of a frame.