A device for controlling relative humidity in an environment with a solidified humectant composition. The solidified humectant composition is made from a humectant salt, water, and a carrier. The solidified humectant may be formed into a tablet with the aid of a binder, or it may be contained within
A device for controlling relative humidity in an environment with a solidified humectant composition. The solidified humectant composition is made from a humectant salt, water, and a carrier. The solidified humectant may be formed into a tablet with the aid of a binder, or it may be contained within a thermoformed felt material, a sachet, or a water permeable canister. In a preferred embodiment, the sachet is made of a micro-perforated polyester/paper/polyethylene material. Preferred humectant salts include CaCl2, K2CO3, LiCl2, NaCl, K2SO4, and combinations thereof. A preferred embodiment of the present invention includes the use of one or more of: an antimicrobial agent, activated carbon, a volatile organic, a moisture adsorber and an oxygen absorber, in combination with the solidified humectant salt.
대표청구항▼
What is claimed: 1. A device for controlling relative humidity in an environment comprising: a water vapor-permeable container in the form of a sachet comprising a micro-perforated polyester/paper/polyethylene material; and a solidified humectant composition within the container, the solidified hum
What is claimed: 1. A device for controlling relative humidity in an environment comprising: a water vapor-permeable container in the form of a sachet comprising a micro-perforated polyester/paper/polyethylene material; and a solidified humectant composition within the container, the solidified humectant composition comprising: a humectant salt, water, and a carrier. 2. The device of claim 1 wherein the humectant salt is selected from the group consisting of CaCl2, K2CO3, LiCl, NaCl, K2SO4, and combinations thereof. 3. The device of claim 1 further comprising an antimicrobial agent in the container. 4. The device of claim 1 wherein the carrier is selected from the group consisting of cellulose, silica gel, clay, carbohydrate or protein gelling agent, hydrocolloid gum, and hydrophilic polymers. 5. The device of claim 1 wherein the solidified humectant composition further comprises activated carbon. 6. The device of claim 1 wherein the solidified humectant composition further comprises an oxygen absorber. 7. The device of claim 1 comprising a binder selected from the group consisting of polyvinylpyrollidone, a thermoplastic resin, a wax, and combinations thereof and wherein the carrier is selected from the group consisting of cellulose, silica gel, clay, carbohydrate or protein gelling agent, hydrocolloid gum, and hydrophilic polymers.
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