Protruded non-woven sheet towel for improving of cleaning and water absorbing capability

Abstract

A nonwoven towel having protrusions and improved cleaning and water-absorbing capacity, suitable for use as wet towels, wet tissues, handkerchiefs, makeup removers, dishwashing sponges or electrostatic dustcloths. Absorbent nonwoven fabric made of fibers having a denier of 0.1-10 is press punched with heated pins, so that the nonwoven fabric has fibrous wrinkled protrusions having a height of 0.1-5 mm on one surface thereof to thus have a reduced fiber density and has recesses structured by perforations having a perforation rate of 5-50% caused by the punching in the other surface thereof. The portion of the nonwoven fabric not punched fluffs, thus reducing fiber density. This nonwoven towel is used in a manner such that two layers thereof are pressed through embossing so that the protrusions are disposed outwards, or absorbent nonwoven fabric or paper tissue is sandwiched between the two layers thereof and then the three-layered composite is pressed through embossing. The nonwoven towel is imparted with enhanced absorbing capacity through corona treatment and reduced lint through embossing treatment, with embossed unevenness.

1 . A non woven towel having protrusions and improved cleaning and water-absorbing capacity, which is two-layered and is suitable for use as any one selected from among a wet towel, a wet tissue, a handkerchief, a makeup remover, a dishwashing sponge and an electrostatic dustcloth, manufactured by:
 press punching a nonwoven fabric made of fibers having a denier of 0.1-10 selected from among a polyolefin-based hydrophobic nonwoven fabric having a basis weight of 5-80 g/including a polypropylene-based hydrophobic nonwoven fabric not subjected to hydrophilic treatment and an absorbent nonwoven fabric having a basis weight of 5-80 g/, using heated pins, so that the nonwoven fabric has fibrous wrinkled protrusions having a height of 0.1-5 mm on one surface thereof to thus have a reduced fiber density and has recesses structured by perforations having a perforation rate of 5-50% caused by the punching in a surface of the nonwoven fabric opposite the surface having the fibrous wrinkled protrusions, and fibers of a portion of the nonwoven fabric other than a portion which is pin punched are fluffed out thus reducing a fiber density, thereby preparing a nonwoven fabric having protrusions and improved cleaning and water-absorbing capacity;   stacking two layers of the nonwoven fabric having protrusions one on another; and   pressing the two layers of the nonwoven fabric along an embossing pattern of an embossing roll, thus imparting an embossing pressed pattern and unevenness and reducing lint of the nonwoven fabric because of the embossing pressed pattern.   
     
     
         2 . A nonwoven towel having protrusions and improved cleaning and water-absorbing capacity, which is three-layered and is suitable for use as any one selected from among a wet towel, a wet tissue, a handkerchief, a makeup remover, a dishwashing sponge and an electrostatic dustcloth, manufactured by:
 press punching a nonwoven fabric made of fibers having a denier of 0.1-10 selected from among a polyolefin-based hydrophobic nonwoven fabric having a basis weight of 5-80 g/including a polypropylene-based hydrophobic nonwoven fabric not subjected to hydrophilic treatment and an absorbent nonwoven fabric having a basis weight of 5-80 g/, using heated pins, so that the nonwoven fabric has fibrous wrinkled protrusions having a height of 0.1-5 mm on one surface thereof to thus have a reduced fiber density and has recesses structured by perforations having a perforation rate of 5-50% caused by the punching in a surface of the nonwoven fabric opposite the surface having the fibrous wrinkled protrusions, and fibers of a portion of the nonwoven fabric other than a portion which is pin punched are fluffed out thus reducing a fiber density, thereby preparing a nonwoven fabric having protrusions and improved cleaning and water-absorbing capacity;   sandwiching a layer of absorbent nonwoven fabric or paper tissue between two layers of the nonwoven fabric having protrusions; and   pressing the three layers along an embossing pattern of an embossing roll, thus imparting an embossing pressed pattern and unevenness and reducing lint of the nonwoven fabric because of the embossing pressed pattern.   
     
     
         3 . A nonwoven towel having protrusions and improved cleaning and water-absorbing capacity, which is single-layered and is suitable for use as any one selected from among a wet towel, a wet tissue, a handkerchief, a makeup remover, a dishwashing sponge and an electrostatic dustcloth, manufactured by: press punching a nonwoven fabric made of fibers having a denier of 0.1-10 selected from among a polyolefin-based hydrophobic nonwoven fabric having a basis weight of 5-80 g/including a polypropylene-based hydrophobic nonwoven fabric not subjected to hydrophilic treatment and an absorbent nonwoven fabric having a basis weight of 5-80 g/, using heated pins, so that the nonwoven fabric has fibrous wrinkled protrusions having a height of 0.1-5 mm on one surface thereof to thus have a reduced fiber density and has recesses structured by perforations having a perforation rate of 5-50% caused by the punching in a surface of the nonwoven fabric opposite the surface having the fibrous wrinkled protrusions, and fibers of a portion of the nonwoven fabric other than a portion which is pin punched are fluffed out thus reducing a fiber density, thereby preparing a nonwoven fabric having protrusions and improved cleaning and water-absorbing capacity. 
     
     
         4 . A nonwoven towel having protrusions and enhanced cleaning and water-absorbing capacity, which is single-layered and is suitable for use as any one selected from among a wet towel, a wet tissue, a handkerchief, a makeup remover, a dishwashing sponge and an electrostatic dustcloth, manufactured by:
 press punching a nonwoven fabric made of fibers having a denier of 0.1-10 selected from among a polyolefin-based hydrophobic nonwoven fabric having a basis weight of 5-80 g/including a polypropylene -based hydrophobic nonwoven fabric not subjected to hydrophilic treatment and an absorbent nonwoven fabric having a basis weight of 5-80 g/, using heated pins, so that the nonwoven fabric has fibrous wrinkled protrusions having a height of 0.1-5 mm on one surface thereof to thus have a reduced fiber density and has recesses structured by perforations having a perforation rate of 5-50% caused by the punching in a surface of the nonwoven fabric opposite the surface having the fibrous wrinkled protrusions, and fibers of a portion of the nonwoven fabric other than a portion which is pin punched are fluffed out thus reducing a fiber density, thereby preparing a nonwoven fabric having protrusions and improved cleaning and water-absorbing capacity; and   pressing a layer of the nonwoven having protrusions with an embossing pattern, thus imparting an embossing pressed pattern and unevenness and reducing lint of the nonwoven fabric because of the embossing pressed pattern.   
     
     
         5 . The nonwoven towel according to  claim 1 , wherein the polyolefin-based hydrophobic nonwoven fabric is subjected to corona treatment to enhance water absorptiveness. 
     
     
         6 . The nonwoven towel according to  claim 1 , wherein the pin punching is performed at a low speed of 50 m/min or less. 
     
     
         7 . The nonwoven towel according to  claim 1 , wherein the absorbent nonwoven fabric is a polyolefin-based hydrophilic nonwoven fabric including a polypropylene-based nonwoven fabric obtained by coating a surface of the nonwoven fabric with a hydrophilic agent, an air through nonwoven fabric, an air-laid nonwoven fabric, a spunlace nonwoven fabric, a polyester nonwoven fabric, and a polyolefin-based nonwoven fabric containing viscose fibers or polyester fibers. 
     
     
         8 . The nonwoven towel according to  claim 1 , wherein the polyolefin-based hydrophobic nonwoven fabric is a polyolefin-based spunbond nonwoven fabric (S), a polyolefin-based meltblown nonwoven fabric (M), a nonwoven fabric (SMS, SMMS) made by layering a polyolefin-based spunbond nonwoven fabric (S) and a polyolefin-based meltblown nonwoven fabric (M), or a polyolefin-based thermal bond nonwoven fabric. 
     
     
         9 . The nonwoven towel according to  claim 1 , wherein the embossing is performed using an embossing roll of an ultrasonic sealer. 
     
     
         10 . The nonwoven towel according to  claim 1 , wherein the surface of the nonwoven fabric having protrusions is imparted with embossed unevenness. 
     
     
         11 . The nonwoven towel according to  claim 2 , wherein the polyolefin-based hydrophobic nonwoven fabric is subjected to corona treatment to enhance water absorptiveness. 
     
     
         12 . The nonwoven towel according to  claim 3 , wherein the polyolefin-based hydrophobic nonwoven fabric is subjected to corona treatment to enhance water absorptiveness. 
     
     
         13 . The nonwoven towel according to  claim 4 , wherein the polyolefin-based hydrophobic nonwoven fabric is subjected to corona treatment to enhance water absorptiveness. 
     
     
         14 . The nonwoven towel according to  claim 2 , wherein the pin punching is performed at a low speed of 50 m/min or less. 
     
     
         15 . The nonwoven towel according to  claim 3 , wherein the pin punching is performed at a low speed of 50 m/min or less. 
     
     
         16 . The nonwoven towel according to  claim 4 , wherein the pin punching is performed at a low speed of 50 m/min or less. 
     
     
         17 . The nonwoven towel according to  claim 2 , wherein the absorbent nonwoven fabric is a polyolefin-based hydrophilic nonwoven fabric including a polypropylene-based nonwoven fabric obtained by coating a surface of the nonwoven fabric with a hydrophilic agent, an air through nonwoven fabric, an air-laid nonwoven fabric, a spunlace nonwoven fabric, a polyester nonwoven fabric, and a polyolefin-based nonwoven fabric containing viscose fibers or polyester fibers. 
     
     
         18 . The nonwoven towel according to  claim 3 , wherein the absorbent nonwoven fabric is a polyolefin-based hydrophilic nonwoven fabric including a polypropylene-based nonwoven fabric obtained by coating a surface of the nonwoven fabric with a hydrophilic agent, an air through nonwoven fabric, an air-laid nonwoven fabric, a spunlace nonwoven fabric, a polyester nonwoven fabric, and a polyolefin-based nonwoven fabric containing viscose fibers or polyester fibers. 
     
     
         19 . The nonwoven towel according to  claim 4 , wherein the absorbent nonwoven fabric is a polyolefin-based hydrophilic nonwoven fabric including a polypropylene-based nonwoven fabric obtained by coating a surface of the nonwoven fabric with a hydrophilic agent, an air through nonwoven fabric, an air-laid nonwoven fabric, a spunlace nonwoven fabric, a polyester nonwoven fabric, and a polyolefin-based nonwoven fabric containing viscose fibers or polyester fibers. 
     
     
         20 . The nonwoven towel according to  claim 2 , wherein the polyolefin-based hydrophobic nonwoven fabric is a polyolefin-based spunbond nonwoven fabric (S), a polyolefin-based meltblown nonwoven fabric (M), a nonwoven fabric (SMS, SMMS) made by layering a polyolefin-based spunbond nonwoven fabric (S) and a polyolefin-based meltblown nonwoven fabric (M), or a polyolefin-based thermal bond nonwoven fabric. 
     
     
         21 . The nonwoven towel according to  claim 3 , wherein the polyolefin-based hydrophobic nonwoven fabric is a polyolefin-based spunbond nonwoven fabric (S), a polyolefin-based meltblown nonwoven fabric (M), a nonwoven fabric (SMS, SMMS) made by layering a polyolefin-based spunbond nonwoven fabric (S) and a polyolefin-based meltblown nonwoven fabric (M), or a polyolefin-based thermal bond nonwoven fabric. 
     
     
         22 . The nonwoven towel according to  claim 4 , wherein the polyolefin-based hydrophobic nonwoven fabric is a polyolefin-based spunbond nonwoven fabric (S), a polyolefin-based meltblown nonwoven fabric (M), a nonwoven fabric (SMS, SMMS) made by layering a polyolefin-based spunbond nonwoven fabric (S) and a polyolefin-based meltblown nonwoven fabric (M), or a polyolefin-based thermal bond nonwoven fabric. 
     
     
         23 . The nonwoven towel according to  claim 5 , wherein the polyolefin-based hydrophobic nonwoven fabric is a polyolefin-based spunbond nonwoven fabric (S), a polyolefin-based meltblown nonwoven fabric (M), a nonwoven fabric (SMS, SMMS) made by layering a polyolefin-based spunbond nonwoven fabric (S) and a polyolefin-based meltblown nonwoven fabric (M), or a polyolefin-based thermal bond nonwoven fabric. 
     
     
         24 . The nonwoven towel according to  claim 11 , wherein the polyolefin-based hydrophobic nonwoven fabric is a polyolefin-based spunbond nonwoven fabric (S), a polyolefin-based meltblown nonwoven fabric (M), a nonwoven fabric (SMS, SMMS) made by layering a polyolefin-based spunbond nonwoven fabric (S) and a polyolefin-based meltblown nonwoven fabric (M), or a polyolefin-based thermal bond nonwoven fabric. 
     
     
         25 . The nonwoven towel according to  claim 12 , wherein the polyolefin-based hydrophobic nonwoven fabric is a polyolefin-based spunbond nonwoven fabric (S), a polyolefin-based meltblown nonwoven fabric (M), a nonwoven fabric (SMS, SMMS) made by layering a polyolefin-based spunbond nonwoven fabric (S) and a polyolefin-based meltblown nonwoven fabric (M), or a polyolefin-based thermal bond nonwoven fabric. 
     
     
         26 . The nonwoven towel according to  claim 13 , wherein the polyolefin-based hydrophobic nonwoven fabric is a polyolefin-based spunbond nonwoven fabric (S), a polyolefin-based meltblown nonwoven fabric (M), a nonwoven fabric (SMS, SMMS) made by layering a polyolefin-based spunbond nonwoven fabric (S) and a polyolefin-based meltblown nonwoven fabric (M), or a polyolefin-based thermal bond nonwoven fabric. 
     
     
         27 . The nonwoven towel according to  claim 2 , wherein the embossing is performed using an embossing roll of an ultrasonic sealer. 
     
     
         28 . The nonwoven towel according to  claim 4 , wherein the embossing is performed using an embossing roll of an ultrasonic sealer. 
     
     
         29 . The nonwoven towel according to  claim 2 , wherein the surface of the nonwoven fabric having protrusions is imparted with embossed unevenness.