Adsorber for humidity and odorous gas exchange

Abstract

In an adsorbing body for humidity and odorous gas exchange such as an adsorbing sheet for dehumidification, an adsorbing element for dehumidification or an adsorbing element for total heat energy exchange, a sheet or a honeycomb laminate is impregnated or coated with silica sol containing, as solid content, not more than 30% of the silica sol weight of minute silica particles not larger than 120 Å in diameter which contain many stable silanol radicals on the surface and 0.01-1% of alkali metal ion Na2O. It is then dried to rigidly fix silica gel. Other humidity adsorbing or absorbing agents such as zeolite, organic high-polymer electrolyte, etc. may be mixed in said silica sol. Silica gel with excellent humidity adsorbing ability can be strongly adhered to a sheet or a honeycomb laminate in an extremely simple method.

What is claimed is:  
     
       1. An adsorbing body for humidity and odorous gas exchange which is made by preparing silica sol which contains as solid content not more than 30% of minute silica particles of diameter not larger than approximately 120 Å which have a plurality of stable silanol radicals on the surface and which have extremely strong binding ability with one another and strong bonding strength with other materials, by impregnating said silica sol in or by coating it on a sheet or a laminate having numerous small channels, and by drying them to gelatinize said sol that is then rigidly fixed on said sheet or laminate. 
     
     
       2. An adsorbing body for humidity and odorous gas exchange which is made by mixing/dispersing inorganic and/or organic humidity adsorbing or adsorbing agent into the silica sol according to  claim 1 , by impregnating the dispersion or by coating it on a sheet or a laminate having numerous small channels, and by drying it to gelatinize said sol that is then rigidly fixed. 
     
     
       3. An adsorbing body for humidity and odorous gas exchange according to  claim 2 , in which the inorganic humidity adsorbing agent is zeolite. 
     
     
       4. An adsorbing body for humidity and odorous gas exchange according to  claim 2 , in which the organic humidity adsorbing agent is hydrophilic organic high-polymer electrolyte. 
     
     
       5. An adsorbing body for humidity and odorous gas exchange according to  claim 2 , in which the inorganic humidity adsorbing agent is selected from the group consisting of lithium salts, magnesium salts and calcium salts. 
     
     
       6. An adsorbing body for humidity and odorous gas exchange which is made by impregnating a salt selected from the group consisting of lithium salts, magnesium salts and calcium salts in a sheet or a laminate which is then rigidly fixed, before or after the manufacture of the adsorbing body for humidity and odorous gas exchange according to  claim 1 . 
     
     
       7. A method for producing an adsorbing body for humidity and odorous gas exchange comprising steps of preparing silica sol which contains as solid content not more than 30% of minute silica particles of diameter not larger than approximately 120 Å which have a plurality of stable silanol radicals on the surface and which have extremely strong binding ability with one another and strong bonding strength with other materials, impregnating said silica sol in or by coating it on a sheet or a laminate having numerous small channels, and drying them to gelatinize said sol that is then rigidly fixed on said sheet or laminate. 
     
     
       8. An adsorbing body for humidity and odorous gas exchange which is made by mixing an organic cation exchange resin in a binder; 
       
         coating the cation exchange resin on a laminate having numerous small channels or on a sheet; and  
       
       
         drying the coated sheet or the laminate to gelatinize the cation exchange resin and binder coated thereon. 
       
     
     
       9. An adsorbing body according to  claim 8 , wherein the cation exchange resin is a strong acid cation exchange resin. 
     
     
       10. An adsorbing body according to  claim 8 , wherein the cation exchange resin has a structure with a cation exchange radical chemically bonded to a benzene ring. 
     
     
       11. An adsorbing body according to  claim 10 , wherein the cation exchange resin is a sodium sulfonate radical. 
     
     
       12. An adsorbing body according to  claim 8 , wherein the cation exchange resin is a sodium cation exchange resin. 
     
     
       13. An adsorbing body for humidity and odorous gas exchange which is made by mixing an organic cation exchange resin in a binder; 
       
         impregnating the cation exchange resin and binder in a laminate having numerous small channels or in a sheet; and  
       
       
         drying the impregnated sheet or laminate to gelatinize the cation exchange resin and binder impregnated therein. 
       
     
     
       14. An adsorbing body according to  claim 13 , wherein the cation exchange resin is a strong acid cation exchange resin. 
     
     
       15. An adsorbing body according to  claim 13 , wherein the cation exchange resin has a structure with a cation exchange radical chemically bonded to a benzene ring. 
     
     
       16. An adsorbing body according to  claim 15 , wherein the cation exchange resin is a sodium sulfonate radical. 
     
     
       17. An adsorbing body according to  claim 13 , wherein the cation exchange resin is a sodium cation exchange resin. 
     
     
       18. An adsorbing body for humidity and odorous gas exchange which is made by mixing an organic cation exchange resin in a binder; 
       
         coating the cation exchange resin on a laminate having numerous small channels; and  
       
       
         drying the coated laminate sheet to gelatinize the cation exchange resin and binder coated thereon. 
       
     
     
       19. An adsorbing body according to  claim 18 , wherein the cation exchange resin is a strong acid cation exchange resin. 
     
     
       20. An adsorbing body according to  claim 18 , wherein the cation exchange resin has a structure with the cation exchange radical chemically bonded to a benzene ring. 
     
     
       21. An adsorbing body according to  claim 20 , wherein the cation exchange resin is a sodium sulfonate radical. 
     
     
       22. An adsorbing body according to  claim 18 , wherein the cation exchange resin is a sodium cation exchange resin. 
     
     
       23. An adsorbing body for humidity and odorous gas exchange which is made by mixing an organic cation exchange resin in a binder; 
       
         impregnating the cation exchange resin and binder in laminate having numerous small channels; and  
       
       
         drying the impregnated laminate to gelatinize the cation exchange resin and binder impregnated therein. 
       
     
     
       24. An adsorbing body according to  claim 23 , wherein the cation exchange resin is a strong acid cation exchange resin. 
     
     
       25. An adsorbing body according to  claim 23 , wherein the cation exchange resin has a structure with the cation exchange radical chemically bonded to a benzene ring. 
     
     
       26. An adsorbing body according to  claim 25 , wherein the cation exchange resin is a sodium sulfonate radical. 
     
     
       27. An adsorbing body according to  claim 23 , wherein the cation exchange resin is a sodium cation exchange resin.