Air tight packaging container for easy leakage test and leakage test method and apparatus using same

Abstract

The present invention relates to an airtight packaging container, which is easy to carry out a leakage test, includes a cosmetic container ( 30 ) for holding a cosmetic (c) containing a high content of moisture and volatile matter (e.g., alcohol, etc.), such as foundation or cosmetic cream; and an airtight lid ( 60 ) which is provided on the cosmetic container ( 30 ) in order to prevent the moisture and volatile matter of the cosmetic (c) from evaporating and being volatilized, the airtight lid ( 60 ) comprising a sealing plate ( 62 ) for covering the cosmetic container ( 30 ) and a sealing protrusion wheel ( 64 ) formed on the underside of the sealing plate and inserted into an opening part of the cosmetic container ( 30 ) while being tightly pressed against the opening part, wherein a leakage test member ( 70 ) is formed in the sealing plate ( 62 ) of the airtight lid ( 60 ).

What is claimed is: 
     
         1 . A leakage test apparatus for performing a leakage test to determine whether an airtight packaging container is perfectly sealed, the leakage test apparatus comprises:
 a product seat member ( 92 ) for seating the airtight packaging container (AC) on which a leakage test member ( 70 ) is formed;   an air injection member ( 94 ) for injecting air through the leakage test member ( 70 ), the air injection member ( 94 ) having a syringe needle ( 93 ) mounted thereon; and   an air compressor ( 96 ) for sucking air through an air suction inlet ( 95 ) and injecting the air into a cosmetic container ( 30 ) through the syringe needle ( 93 ) of the air injection member ( 94 ).   
     
     
         2 . The leakage test apparatus of  claim 1 , wherein the product seat member ( 92 ) includes a fixing member for fixing the airtight packaging container (AC). 
     
     
         3 . The leakage test apparatus of  claim 1 , wherein the product seat member ( 92 ) includes a moving member for moving the product seat member ( 92 ) by sensing a position of the air injection member ( 94 ) using a sensor to allow the air injection member ( 94 ), to which the syringe needle ( 93 ) is installed, to move down such that the syringe needle ( 93 ) passes through a center of the leakage test member ( 70 ). 
     
     
         4 . The leakage test apparatus of  claim 1 , wherein the syringe needle ( 93 ) is installed to be easily detachable from the air injection member ( 94 ). 
     
     
         5 . The leakage test apparatus of  claim 1 , wherein the syringe needle ( 93 ) has a diameter in a range of 0.2 mm to 1.5 mm and is formed of stainless steel. 
     
     
         6 . The leakage test apparatus of  claim 1 , wherein a descent or ascent distance of the air injection member ( 94 ) is controlled by a sensor or a limit switch. 
     
     
         7 . The leakage test apparatus of  claim 1 , wherein an operation of the air compressor ( 96 ) stops when an internal pressure of the cosmetic container ( 30 ) is in a range of 1 kgf/cm 2  to 5 kgf/cm 2 . 
     
     
         8 . A method of performing a leakage test to determine whether and the airtight packaging container is perfectly sealed, the method comprises:
 (S 10 ) seating an airtight packaging container (AC), on which a leakage test member ( 70 ) subject to the leakage test is formed, at a product seat member ( 92 );   (S 20 ) transferring an air injection member ( 94 ), on which a syringe needle ( 93 ) is mounted, to allow the syringe needle ( 93 ) to pass through the leakage test member ( 70 ) of a cosmetic container ( 30 ), so that an outlet ( 932 ) of the syringe needle ( 93 ) is placed in an airtight packaging container (AC) (S 20 );   (S 30 ) sucking air through an air suction inlet ( 95 ) by operating an air compressor ( 96 ) to inject the air into the cosmetic container ( 30 ) through the syringe needle ( 93 ) mounted on the air injection member ( 94 );   (S 40 ) stopping an operation of the air compressor ( 96 ) after the air is injected until the internal pressure of the cosmetic container ( 30 ) reaches a predetermined pressure;   (S 50 ) separating the air injection member ( 94 ) on which the syringe needle ( 93 ) is mounted from the cosmetic container ( 30 );   (S 60 ) leaving the airtight packaging container (AC) for a predetermined time; and   (S 70 ) after the predetermined time is elapsed, measuring the internal pressure of the cosmetic container ( 30 ) and compare the measured internal pressure with an internal pressure under   air injection.   
     
     
         9 . The method of  claim 8 , wherein, in the injecting of the air (S 30 ) the air is injected until the internal pressure of the cosmetic container ( 30 ) is in a range of 1 kgf/cm 2  to 5 kgf/cm 2 . 
     
     
         10 . The method of  claim 8 , wherein, in the leaving of the airtight packaging container (S 60 ), the airtight packaging container (AC) leaves for 5 hours to 48 hours after the air injection into the cosmetic container ( 30 ) is completed.