Functional cotton spray composition, method for producing the same, and building material using the same

A method for producing a functional cotton spray composition, comprising:

• a first step in which 100 parts by weight of cotton fibers having a length of 3 mm or less are prepared;
• a second step in which 0.5 to 5 parts by weight of a microcapsule type phase change material and 0.5 to 1 parts by weight of a titanium dioxide photoactive catalyst are added to and mixed with the cotton fibers;
• a third step in which 0.5 to 2 parts by weight of at least one natural pigment selected from the group consisting of a pine needle powder, a green tea powder, a mugwort powder, an indigo plant powder, a gardenia powder, a charcoal powder and a yellow soil powder is added to and mixed with the cotton fibers;
• a fourth step in which 0.5 to 5 parts by weight of a dispersant and 5 to 20 parts by weight of a viscosity improver are added to the cotton fibers to promote dispersion and binding of the cotton fibers;
• a fifth step in which 10 to 20 parts by weight of an organic flame retardant and 5 to 15 parts by weight of an inorganic flame retardant are added to the cotton fibers;
• a sixth step in which 0.5 to 3 parts by weight of an antimicrobial and antifungal agent as a functional additive is added to the cotton fibers;
• and
• a seventh step in which the substances prepared and added in the first through sixth steps and 300 to 600 parts by weight of purified water are put into a kneader, thoroughly kneaded at a kneading speed of 50 to 500 rpm for 20 to 45 minutes, and left alone to age at a temperature of 25 to 50° C. for 1 to 5 hours.

A building material provided with a cotton spray composition, wherein the cotton spray composition comprises:

• 100 parts by weight of cotton fibers having a length of 3 mm or less;
• 0.5 to 5 parts by weight of a microcapsule type phase change material;
• 0.5 to 1 parts by weight of a titanium dioxide photoactive catalyst;
• 0.5 to 2 parts by weight of at least one natural pigment selected from the group consisting of a pine needle powder, a green tea powder, a mugwort powder, an indigo plant powder, a gardenia powder, a charcoal powder and a yellow soil powder;
• 0.5 to 5 parts by weight of a dispersant;
• 5 to 20 parts by weight of a viscosity improver;
• 10 to 20 parts by weight of an organic flame retardant;
• 5 to 15 parts by weight of an inorganic flame retardant;
• 0.5 to 3 parts by weight of an antimicrobial and antifungal agent;
• and 300 to 600 parts by weight of viscosity-controlling water.