To provide a scouring material containing natural fibers which can be decomposed in an environmentally permissible manner, and mass-produced in accordance with the uniform standard, and incorporate ground ore in a web without compressing the web to undesirable degree.
The scouring material contains non-woven web of entangled fibers bonded to one another at their mutual contact points by a pre-bond resin and abrasive particles are adhered to the fibers of the bonded web by a make-coat resin. A majority of the fibers comprise natural fibers and the bonded web has a maximum density of 50 kg/m3. A method of making the scouring material includes a step of forming a non-woven web of natural fibers contacted with dry particulate material that includes fusible binder particles, a step of exposing the web to conditions that cause the binder particles to form a flowable liquid binder, and then solidifying the liquid binder to form bonds between the fibers of the web and thereby provide a pre-bonded web, and a step of applying abrasive particles to the pre-bonded web and bonding the abrasive particles to the fibers of the pre-bonded web by the make-coat resin to provide the scouring material.
CABRERO GOMEZ ESTRELLA
POLLAUD GUY M
Takashi Ishida
Tetsuji Koga
Nagasaka Tomoyasu
Yoshihiro Kobayashi
Kenichi Kato
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