Tacky allergen trap and filter medium

Tacky allergen trap and filter medium

  • CN 101,553,358 B
  • Filed: 01/18/2007
  • Issued: 09/07/2016
  • Est. Priority Date: 01/18/2006
  • Status: Active Grant
First Claim
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1. a filter medium, comprises:

  • A () has the nonwoven, airlaid multi-layer substrate of the basis weight of 35gsm to 500gsm, described base material is based on its gross weightAmount includes 30-95w% matrix fiber and 5-70wt% binding agent, and it comprises(A) comprise synthetic substrate fiber and there is the ground floor of top surface and basal surface,(B) having the second layer of top surface and basal surface, the described second layer comprises cellulose matrix fiber and binding agent andThe basal surface of the top surface contact ground floor of two layers, and(b) contact adhesive.

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