Slasher

Abstract

A slasher includes a moistening unit for moistening warp yarns by spraying water on the warp yarns, a squeezing unit for squeezing the moistened warp of the warp yarns, and a sizing unit for sizing the moistened and squeezed warp yarns. The moistening unit sprinkles water on the warp yarns to moisten the warp yarns. The warp yarns absorb part or all of the water sprinkled thereon. The warp yarns are not immersed in water during moistening to avoid excessive moistening. The squeezing unit squeezes the moistened warp yarns so that moisture infiltrates the warp yarns and the warp yarns is moistened uniformly. The moisture moistening the warp yarns is replaced and mixed with size liquor while the warp yarns are being passed through size liquor, so that the warp yarns can be easily and uniformly sized.

What is claimed is:  
     
         1 . A slasher comprising: 
 a moistening unit for moistening warp yarns by sprinkling water on the warp;    a squeezing unit for squeezing the moistened warp yarns; and    a sizing unit for sizing the moistened and squeezed the warp yarns.    
     
     
         2 . The slasher according to  claim 1 , wherein the moistening unit adjusts water sprinkling rate at which water is sprinkled on the warp yarns according to operating conditions.  
     
     
         3 . The slasher according to  claim 1  or  2 , wherein the moistening unit sprinkles water on the warp yarns by spraying water through one or plural nozzles.  
     
     
         4 . The slasher according to  claim 2  or  3 , wherein the moistening unit includes a plurality of nozzle groups each having a plurality of nozzles arranged along width of the warp yarns, and the nozzle groups are controlled individually.  
     
     
         5 . The slasher according to  claim 4 , wherein the nozzles of each of the nozzle groups of the moistening unit are arranged at intervals different from those at which the nozzles of the other nozzle group are arranged, and water is supplied at different pressures to the nozzle groups, respectively.  
     
     
         6 . The slasher according to any one of  claims 3  to  5 , wherein the one or plural nozzles are movable toward and away from the warp yarns.  
     
     
         7 . The slasher according to any one of  claims 3  to  6 , wherein the moistening unit includes a movable moistening adjusting member disposed between the nozzles and the warp yarns.  
     
     
         8 . The slasher according to any one of  claims 1  to  7 , wherein the moistening unit sprinkles hot water on the warp of the warp yarns.