Process for chemically bonding an odor-encapsulating agent to textiles and textiles formed by the process
A process for chemically bonding an odor-encapsulating agent to textiles includes reacting a cyclodextrin with a cross-linking agent capable of forming ether bonds with the cyclodextrin and with the textile material, and curing the textile material treated with a mixture of the cyclodextrin and cross-linking agent. Preferably, the cross-linking agent is imidazolidone, which forms an ether bond with a hydroxyl group on the cyclodextrin and with a hydroxyl group. In textile materials containing cellulose, imidazolidone forms an ether bond with a hydroxyl group on the cellulose. An active agent can be complexed with the cyclodextrin for release. Textiles formed by such a process can comprise an article of clothing adapted to trap odors emanating from a wearer.
1. A textile material formed by the process comprising:
providing an odor-encapsulating cyclodextrin and an imidazolidone cross-linking agent in a water bath;
dipping the textile material into the water bath;
removing the textile material from the water bath; and
heating the textile material in an oven at a temperature of about 320° F. for approximately two minutes,
wherein the cyclodextrin is cross-linked with imidazolidone by forming an ether bond between the imidazolidone and a hydroxyl group on the cyclodextrin; and
wherein the imidazolidone is cross-linked with the cellulose in the textile material by forming an ether bond between the imidazolidone and a hydroxyl group on the cellulose.
2. The textile material of claim 1 , wherein the textile material comprises an article of clothing adapted to trap odors emanating from a wearer.
3. A textile material formed by the process comprising:
dissolving in a water bath a textile finishing formulation comprising a cyclodextrin and an imidazolidone;
dipping into the water bath a textile material comprising cellulose;
padding the textile material;
tentering the textile material by heat drying the textile material under tension;
curing the textile material in an oven at a temperature of about 320° F. for approximately two minutes wherein the imidazolidone forms ether linkages with hydroxyl groups on the cyclodextrin and on the cellulose to bond the cyclodextrin to the textile material; and
shrinking the textile material via compression.
4. The textile material of claim 3 , wherein the textile material comprises an article of clothing adapted to trap odors emanating from a wearer.
5. A textile material formed by the process comprising:
providing a textile finishing formulation comprising a cyclodextrin, an imidazolidone resin, magnesium chloride, a wetting agent, a pH adjuster, and a softening agent;
dissolving the textile finishing formulation in a water bath;
dipping into the water bath a textile material containing cellulose;
padding the textile material;
tentering the textile material by heat drying under tension between about 320° F. and about 380° F.;
curing the textile material in an oven at a temperature of about 320° F. for approximately two minutes wherein the imidazolidone forms ether linkages with hydroxyl groups on the cyclodextrin and on the cellulose to bond the cyclodextrin to the textile material; and
shrinking the textile material via compression.
6. The textile material of claim 5 , wherein the textile material comprises an article of clothing adapted to trap odors emanating from a wearer.
7. A fabric, comprising:
cellulose;
an imidazolidone cross-linked with an ether bond to a hydroxyl group on the cellulose; and
a cyclodextrin cross-linked to the imidazolidone with an ether bond between the imidazolidone and a hydroxyl group on the cyclodextrin.
8. The fabric of claim 7 , wherein the cyclodextrin comprises an alpha-cyclodextrin, a beta-cyclodextrin, a gamma-cyclodextrin, a methyl-substituted cyclodextrin, an ethyl-substituted cyclodextrin, a hydroxyalkyl-substituted cyclodextrin, a branched cyclodextrin, an anionic cyclodextrin, a cationic cyclodextrin, a quaternary ammonium cyclodextrin, an amphoteric cyclodextrin, or a mixture thereof.
9. The fabric of claim 7 , further comprising a compound complexed with the cyclodextrin for release.
10. The fabric of claim 9 , wherein the compound complexed with the cyclodextrin comprises an antimicrobial agent, a perfume, an odor-mitigating chemical, or an insecticide.
11. A fabric comprising:
an imidazolidone cross-linked with an ether bond to the fabric; and
an odor-encapsulating cyclodextrin cross-linked with an ether bond to the imidazolidone.
12. The fabric of claim 11 , wherein the imidazolidone is cross-linked with an ether bond to a hydroxyl group on the fabric and wherein the imidazolidone is cross-linked with an ether bond to a hydroxyl group on the cyclodextrin.
13. The fabric of claim 11 , wherein the cyclodextrin comprises an alpha-cyclodextrin, a beta-cyclodextrin, a gamma-cyclodextrin, a methyl-substituted cyclodextrin, an ethyl-substituted cyclodextrin, a hydroxyalkyl-substituted cyclodextrin, a branched cyclodextrin, an anionic cyclodextrin, a cationic cyclodextrin, a quaternary ammonium cyclodextrin, an amphoteric cyclodextrin, or a mixture thereof.
14. The fabric of claim 11 , further comprising a compound complexed with the cyclodextrin for release.
15. The fabric of claim 14 , wherein the compound complexed with the cyclodextrin comprises an antimicrobial agent, a perfume, an odor-mitigating chemical, or an insecticide.