Fiber-treating liquid, modified cloth, and process for producing the same

A fiber treating liquid comprising:

• a component (X) which is a water-soluble eggshell membrane powder,
• a component (A) which is a bifunctional monomer represented by the following formula (1), a component (B) which is a monomer containing any one of a hydroxyl group, carboxyl group, amino group, sulfonic acid group and phosphoric acid group, and
• a component (C) which is a monomer containing at least one aziridine group, or a water-soluble polymer containing a polycarbodiimide group, polyethyleneimine group, or oxazoline group,
• wherein R represents any one of
• and —CnH2n (n is an integer of 1 to 6);
• Z is a hydrogen atom or a methyl group;
• a and b are integers where “a+b” is 0 to 50;
• x and y are integers where “x+y” is 0 to 30;
• and
• “a+b+x+y” is 10 or more.

A method for producing a modified fiber fabric, comprising:

• a first liquid-contacting step of bringing a fiber treating liquid comprising a component (A) which is a bifunctional monomer represented by the following formula (1), a component (B) which is a monomer containing any one of a hydroxyl group, carboxyl group, amino group, sulfonic acid group, and phosphoric acid group, and a component (C) which is a monomer containing at least one aziridine group, or a water-soluble polymer containing a polycarbodiimide group, polyethyleneimine group, or oxazoline group, into contact with a fiber fabric,
• a first polymerization step of polymerizing the components (A) to (C) on the fiber fabric,
• a second liquid-contacting step of bringing a solution of a component (X) which is a water-soluble eggshell membrane powder into the fiber fabric on which the components (A) to (C) are polymerized, and
• a second polymerization step of polymerizing the component (X) on the fiber fabric,
• wherein R represents any one of
• and —CnH2n— (n is an integer of 1 to 6);
• Z is a hydrogen atom or a methyl group;
• a and b are integers where “a+b” is 0 to 50;
• x and y are integers where “x+y” is 0 to 30;
• and
• “a+b+x+y” is 10 or more.