Inquiry (采购产品): Filter Paper We are a die cut converter looking for a filter paper. This will be used in one of our standard products, to prevent particulates from transferring outside of the bag, but allow C02 to vent. What was recommended to us was a 40 gsm paper allowing for 0% retention in average for particle 105 - 150 microns. The other material has a particle retention of 0.5% on average for particle sizes of 105 - 150 microns. The material that we are trying to source is similar to coffee filter paper. This should be white. Do you have anything which may work with this application. Thank you in advance for your help. **** Hidden Message ***** Helena Morges 69 Rawls Road Des Plaines, IL 60018 USA Company: Plitek LLC Title: Purchasing Manager Phone: 847-803-5596 Fax: 847-827-6733 E-mail: helena.morges@plitek.com **** Hidden Message ***** helena.morges@plitek.com