Double-face usable duster and the method for making the cleaning cloth thereof

Abstract

A double-face usable duster and the method for making the cleaning cloth thereof for cleaning dust off various articles comprises a first surface cleaning layer and a second surface cleaning layer and a central layer, each of the surface cleaning layers being formed by two layers of non-woven fabric through a hot-melt process. The central layer is an electrostatic precipitating portion sandwiched between the surface cleaning layers made of hot melt yarns. The three layers are combined to form the cleaning cloth of a double-face usable duster. Each of the surface cleaning layers is further provided with a plurality of sleeves for retaining a handle.

1 . A method for making the cloth of a double-face usable duster, comprising the steps of: 
 (1) piling up a needle-punched non-woven fabric with embossed mesh and a smooth hot melt non-woven fabric to form a first surface cleaning layer, said first surface cleaning layer being cut to form a multitude of transverse strips, yarn setting and five-layer combining processing;    (2) processing coarse fibers capable of being hot-melted into hot melt nodal yarns to form a central layer, yarn setting and five-layer combining processing;    (3) piling up a needle-punched non-woven fabric with embossed mesh and a smooth hot melt non-woven fabric to form a second surface cleaning layer, said second surface cleaning layer being cut to form a multitude of transverse strips, yarn setting and five-layer combining processing;    (4) piling up said first surface cleaning layer, said central layer, and said second surface cleaning layer and undergoing through sub-steps of yarn setting, five-layer combining processing, and five-layer hot stamping, whereby a cleaning cloth will be formed; and    (5) cutting elongated openings on said first surface cleaning layer and said second surface cleaning layer along a selected longitudinal direction, folding said cleaning cloth about said longitudinal direction to form a final configuration of said double-face usable duster.    
   
   
       2 . A double-face usable duster, comprising: 
 a first surface cleaning layer combined by a first layer of non-woven fabric and a second layer of non-woven fabric through a hot melt process, said first surface cleaning layer being further provided with a plurality of sleeves extended along a longitudinal axis thereof and an elongated weld line transverse to said longitudinal axis, each of said sleeves having a wide opening, a shrinking middle section and a closed narrow tail section, whereby a handle arm can be inserted and secured in one said sleeve, whereby said closed narrow tail section can prevent inserting a handle arm at a wrong end, outer portions of said first surface cleaning layer being cut to form a multitude of transverse strips for providing a more effective cleaning effect;    a second surface cleaning layer combined by a first layer of non-woven fabric and a second layer of non-woven fabric through a hot melt process, said second surface cleaning layer being further provided with a plurality of sleeves extended along a longitudinal axis thereof and an elongated weld line transverse to said longitudinal axis, each of said sleeves having a wide opening, a shrinking middle section and a closed narrow tail section, whereby a handle arm can be inserted and secured in one said sleeve, and whereby said closed narrow tail section can prevent inserting a handle arm at a wrong end, outer portions of said second surface cleaning layer being cut to form a multitude of transverse strips for providing a more effective cleaning effect; and    a central electrostatic precipitating layer made of hot melt nodal yarns and sandwiched by said first surface cleaning layer and said second surface cleaning layer, said hot melt nodal yarns being a fabric interlaced by coarse fibers capable of being hot-melted, said central layer, said first surface cleaning layer and said second surface cleaning layer being bound together by hot melting to form a combined structure, said combined structure further including two elongated openings respectively extending along said longitudinal axes and ending at said elongated weld lines; and    whereby said combined structure can be folded about one said longitudinal axis to form said double-face usable duster, whereby said elongated openings will have an effect of expanding the cleaning surface of said double-face usable duster, and whereby a handle will be coupled with said sleeves of one of said first surface cleaning layer and said second surface cleaning layer.    
   
   
       3 . The double-face usable duster of  claim 2  wherein said first layer of non-woven fabric of said first surface cleaning layer is a needle-punched non-woven fabric with embossed mesh, and said second layer of non-woven fabric of both of said first surface cleaning layers is a smooth hot melt non-woven fabric.  
   
   
       4 . The double-face usable duster of  claim 2  wherein said central layer is an electrostatic precipitating portion made of hot melt nodal yarns with a node density of 1-50 per inch, and wherein said hot melt nodal yarns are a fabric interlaced by coarse and fine fibers capable of being hot-melted, whereby said fibers will not entangled.  
   
   
       5 . The double-face usable duster of  claim 2  wherein said second layer of non-woven fabric of said first surface cleaning layer is a needle-punched non-woven fabric with embossed mesh, and said second layer of non-woven fabric of said first surface cleaning layer is a smooth hot melt non-woven fabric.