Method of packaging manufactured stone

Abstract

A method of packaging manufactured stones comprises placing two layers of manufactured stones in a vented container and separating the two manufactured stone layers with a separator sheet made from a spun-bond, non-woven fabric having a desired moisture vapor transmission rate.

1 . A method of packaging manufactured stones, comprising:
 placing two layers of manufactured stones in a vented container; and   separating said two layers of manufactured stones with a separator sheet made from a spun-bond, non-woven fabric having a moisture vapor transmission rate of at least 100 grams/100 sq in/24 hours as measured by ASTM E-96.   
     
     
         2 . The method of  claim 1  including using a polypropylene material for said fabric. 
     
     
         3 . The method of  claim 1 , including using a polypropylene material with a weight per unit area of between about 2.1 and about 0.5 ounces/yd 2  for said fabric. 
     
     
         4 . The method of  claim 1 , including using a polypropylene material with a weight per unit area of about 0.75 ounces/yd 2  for said fabric. 
     
     
         5 . The method of  claim 1 , including using a polyester material for said fabric. 
     
     
         6 . The method of  claim 1 , including using a combination of polypropylene material and polyester material for said fabric. 
     
     
         7 . The method of  claim 1 , including using a fabric with a tensile MD of at least 58 N as per Edana ERT 20.2-89. 
     
     
         8 . The method of  claim 1 , further including providing a series of apertures in said separator sheet. 
     
     
         9 . The method of  claim 8 , including using apertures having a diameter of about 0.25 inch. 
     
     
         10 . The method of  claim 1 , including providing a double layer separator sheet. 
     
     
         11 . The method of  claim 10 , including providing said double layer separator sheet with at least one side seam so as to form a pouch. 
     
     
         12 . The method of  claim 1 , including using a patternless fabric with only random surface features. 
     
     
         13 . A package of manufactured stones, comprising:
 two layers of manufactured stones positioned in a vented container; and   a separator sheet positioned between the two layers of stones, the sheet comprising a material having a moisture vapor transmission rate of at least 100 grams/100 sq in/24 hours as measured by ASTM E-96.   
     
     
         14 . The package of  claim 13 , wherein the separator sheet comprises a spun-bond, non-woven fabric. 
     
     
         15 . The package of  claim 14 , wherein the separator sheet is made from a material selected from a polypropylene material, polyester material or a combination thereof. 
     
     
         16 . The package of  claim 15 , wherein the sheet is made primarily from a polypropylene material having a weight per unit area of between about 2.1 and about 0.5 ounces/yd 2 . 
     
     
         17 . The package of  claim 16 , wherein the polypropylene material has a weight per unit area of about 0.75 ounces/yd 2 . 
     
     
         18 . The package of  claim 13 , wherein the separator sheet comprises a fabric with a tensile MD of at least 58 N as per Edana ERT 20.2-89. 
     
     
         19 . The package of  claim 13 , further including providing a plurality of apertures in said separator sheet. 
     
     
         20 . The package of  claim 13 , wherein the separator sheet comprises a double layer separator sheet with at least one side seam so as to form a pouch.