METHOD AND COMPOSITION FOR TREATING FIBROUS SUBSTRATES
Embodiments of the present disclosure include soil repellent compositions, methods for imparting resistance to soiling on a fibrous substrate, fibrous substrates to which a soil repellent composition has been applied and dried, methods of making soil repellent compositions, and the like.
1 . A soil repellent composition imparting soil resistance on a fibrous substrate comprising a water-based mixture of:
(a) a fluorochemical,
(b) a silsesquioxane-containing sol, and
(c) a lubricity-enhancing agent.
2 . The composition according to claim 1 , wherein the fluorochemical is selected from: a fluorocarbonylimino biuret, a fluoroester, a fluoroester carbamate, a fluorourethane, a fluoroacrylate, a fluoropolymer, or a mixture thereof.
3 . The composition according to claim 1 , wherein the silsesquioxane-containing sol comprises a polymer of the formula RSiO 3/2 , where R is a substituted or unsubstituted hydrocarbon up to 7 carbon atoms.
4 . The composition according to claim 1 , wherein the silsesquioxane-containing sol comprises at least one of co-polymers of the formula RSiO 3/2 , R′ 2 SiO, or R″ 3 SiO 1/2 where R, R′, and R″ are each independently substituted or unsubstituted hydrocarbons up to 7 carbon atoms, and mixtures thereof.
5 . The composition according to claim 1 , wherein the lubricity-enhancing agent comprises: a lubricity-enhancing agent selected from: a cationic lubricity-enhancing agent, a nonionic lubricity-enhancing agent, an anionic lubricity-enhancing agent, an amphoteric lubricity-enhancing agent, or a combination thereof.
6 . The composition, according to claim 1 , wherein the lubricity-enhancing agent is a high density polyethylene.
7 . The composition according to claim 6 , wherein the high density polyethylene is partially oxidized.
8 . The composition according to claim 1 , wherein the applied solids content of the composition is in the range of from about 0.01 wt % to 1.0 wt % based on the total weight of the fibrous substrate.
9 . The composition according to claim 1 , wherein the applied solids content of the composition is in the range of from about 0.02 to 0.5 wt % based on the total weight of the fibrous substrate.
10 . The composition according to claim 1 , wherein the applied solids content of the composition is in the range of from about 0.05 to 0.35 wt % based on the total weight of the fibrous substrate.
11 . The composition, according to claim 1 , further comprising a stain resistance agent.
12 . The composition according to claim 11 , wherein the stain resistant agent is selected from: a sulfonated phenol-aldehyde condensation product, a sulfonated naphthol-aldehyde condensation product, a polymethacrylic acid polymer, an acrylic acid polymer, a copolymers of acrylic acid or methacrylic acid with ethylenically unsaturated comonomers, a hydrolyzed maleic anhydride copolymer with an ethylenically unsaturated comonomer, or a mixture thereof.
13 . The composition according to claim 1 , wherein the lubricity-enhancing agent component of the composition is about 0.01 to 0.2 wt % of dried solids based on the total weight of the fibrous substrate.
14 . A method for imparting resistance to soiling on a fibrous substrate, the method comprising contacting the fibrous substrate with a soil repellent composition followed by drying, the soil repellent composition comprising a water-based mixture of:
(a) a fluorochemical,
(b) a silsesquioxane-containing sol, and
(c) a lubricity-enhancing agent.
15 . The method of claim 14 , wherein the fluorochemical is selected from: a fluorocarbonyllimino biuret, a fluoroester, a fluoroester carbamate, a fluorourethane, a fluoroacrylate, a fluoropolymer, or a mixture thereof.
16 . The method of claim 14 , wherein the silsesquioxane-containing sol comprises a polymer of the formula RSiO 3/2 , where R is a substituted or unsubstituted hydrocarbons up to 7 carbon atoms.
17 . The method of claim 14 , wherein the silsesquioxane-containing sol comprises at least one of co-polymers of the formula RSiO 3/2 , R′ 2 SiO, or R″ 3 SiO 1/2 where R, R′, and R″ are each independently substituted or unsubstituted hydrocarbons up to 7 carbon atoms, and mixtures thereof.
18 . The method of claim 14 , wherein said lubricity-enhancing agent comprises a high density polyethylene.
19 . The method of claim 18 , wherein the high density polyethylene is partially oxidized.
20 . A fibrous substrate to which a soil repellent composition has been applied and dried, the soil repellent composition comprising a water-based mixture of:
(a) a fluorochemical,
(b) a silsesquioxane-containing sol, and
(c) a lubricity-enhancing agent.
21 . The fibrous substrate of claim 20 , wherein the fluorochemical is selected from: a fluorocarbonyllimino biuret, a fluoroester, a fluoroester carbamate, a fluorourethane, a fluoroacrylate, a fluoropolymer, or a mixture thereof.
22 . The fibrous substrate of claim 20 , wherein the silsesquioxane-containing sol comprises a polymer of the formula RSiO 3/2 where R is a substituted or unsubstituted hydrocarbons up to 7 carbon atoms.
23 . The fibrous substrate of claim 20 , wherein the silsesquioxane-containing sol comprises at least one of co-polymers of the formula RSiO 3/2 , R′ 2 SiO, or R″ 3 SiO 1/2 where R, R′, and R″ are each independently substituted or unsubstituted hydrocarbons up to 7 carbon atoms, and mixtures thereof.
24 . The fibrous substrate of claim 20 , wherein the lubricity-enhancing agent comprises a high density polyethylene.
25 . The fibrous substrate of claim 24 , wherein the high density polyethylene is partially oxidized.
26 . A method for imparting resistance to soiling on a fibrous substrate, the method comprising the sequential steps of,
(a) mixing a fluorochemical and a silsesquioxane-containing sol to form a blend;
(b) treating the fibrous substrate with the blend;
(c) applying a lubricity-enhancing agent to the treated fibrous substrate; and
(d) drying.
27 . A method for imparting resistance to soiling on a fibrous substrate, the method comprising the sequential steps of,
(a) mixing a fluorochemical and a lubricity-enhancing agent to form a blend;
(b) treating the fibrous substrate with the blend;
(c) applying a silsesquioxane-containing sol to the treated fibrous substrate; and
(d) drying.
28 . A method for imparting resistance to soiling on a fibrous substrate, the method comprising the sequential steps of,
(a) treating the fibrous substrate with a fluorochemical,
(b) mixing a silsesquioxane-containing sol and a lubricity-enhancing agent to form a blend;
(c) applying the blend to the fibrous substrate from step (a); and
(d) drying.
29 . A method for imparting resistance to soiling on a fibrous substrate, the method comprising the sequential steps of,
(a) contacting the fibrous substrate with a fluorochemical;
(b) treating the fibrous substrate from step (a) with a silsesquioxane-containing sol;
(c) applying a lubricity-enhancing agent to the fibrous substrate from step (b); and
(d) drying.