298 results about "Odor control" patented technology

An odor-inhibiting fiber having a cellulosic fiber and an odor-inhibiting formulation. The odor-inhibiting formulation may contain an odor-inhibiting agent, such as a biocide, an enzyme, a urease inhibitor. The odor-inhibiting formulation also may contain a liquid carrier such as a hydrophobic or hydrophilic organic liquid, or a mixture of a hydrophobic and hydrophilic organic liquid. The cellulosic fiber is impregnated with the odor-inhibiting formulation to produce fiber having odor-inhibiting characteristics. The resultant odor-inhibiting fiber is useful in making absorbent articles with odor-inhibiting characteristics. The fiber of the embodiments prevents odor by inhibiting bacteria growth and ammonia production, especially when used in an absorbent article such as a diaper or adult incontinence device.

The present invention relates to a visual indicating device and an article for controlling odors, in particular foot, garbage, basement, cooking, pet, tobacco, feces and urine odors. The article comprises a visual indicating agent that is color sensitive to the odor, and optionally, an odor absorbing agent. The visual indicating agent changes color when the article has been exposed to a sufficient amount of odor to saturate the article. The indicating agent may be applied in differing concentrations to two or more zones so as to indicate to a user of the article how much of the odor absorbing capacity has been used, or conversely, how much of the odor absorbing capacity remains. Suitable visual indicating agents that change color in response to odors are also described. The article for controlling odors may be a disposable odor absorbing sheet, air freshening product, diaper, undergarment pad, face mask, air filtration device, sanitary napkin, tampon, panty shield or incontinence pad.

The present invention is directed to materials containing an enzyme inhibitor, including treated fibers, nonwovens, functional particles and processes for making these materials. These materials are useful in reducing or delaying onset of odor generation from various waste materials including human and animal elimination products.

A synergistic composition is provided for controlling odor from waste products. The composition comprises a combination of nitrate salt, sulfide-consuming compound, pH-elevating compound, sulfide-oxidizing, nitrate-reducing bacteria, and sulfide-oxidizing enzyme. The method includes adding a sufficient amount of the composition to a waste stream to provide sufficient sulfide-consuming compound to effect immediate removal of sulfide. The composition incorporates a pH elevating compound, which both decreases the amount of gaseous H2S and puts the aqueous phase into a pH range where naturally occurring bacteria can more easily metabolize the sulfide. The composition also includes one or more nitrate salts which will accomplish longer term prevention of odors. Specific bacteria are incorporated into the formulation to insure that the nitrate has the right type and amount of bacteria present to prevent formation of and / or consume sulfide. Specific enzymes are incorporated into the formulation to promote oxidation of sulfide.

This invention concerns an odor control layer for personal care products having a dried, aqueously deposited formulation of odor sorbent and binder. This layer may be placed in a personal care product like diapers, training pants, absorbent underpants, adult incontinence products, and feminine hygiene products. The amount of odor sorbent present may be in an amount of between about 2 and 80 weight percent on a dry basis. The layer may be a tissue, film, paper towel, nonwoven web, coform, airlaid, wet-laid, bonded-carded web and laminates thereof.

A synergistic composition and method is provided for controlling odor from waste products. The composition comprises a combination of magnesium hydroxide and a sulfide-consuming compound. The method includes adding a sufficient amount of the composition to a waste stream to provide sufficient sulfide-consuming compound to effect immediate removal of sulfide. The composition incorporates a pH elevating and buffering compound, which both increases and buffers the pH. The increased pH serves to reduce both the volatile sulfide species and the volatile fatty acid (VFAs) species. The elevated pH also promotes the growth of naturally occurring bacteria which metabolize the sulfide to an innocuous form. Finally, addition of the composition drives the pH into a range where the growth of sulfide producing bacteria is inhibited. The mixture has surprisingly been found to be synergistic with respect to both control of chemical species that produce odors and corrosion of metals commonly found in sludge dewatering equipment.

This invention relates to an improved urea-nitrogen stabilizer composition and methods, systems and apparatti for making thereof. The nitrogen stabilizer composition is incorporated into molten urea to result in a composition that contains less biuret, NMP, nitrogen stabilizer and / or impurities and provides an effective solid fertilizer. These compositions are useful in odor control.

Absorbent articles with an odor control system. The odor control system includes at least two classes of odor control materials, wherein a first class comprises at least a material having low volatility, and a second class comprises at least a material having high volatility. The odor control system is provided in the absorbent article in a selected position and amount to provide a prolonged odor control action.

Waste containers which include a vessel body with an opening for receiving waste materials, a removable cover for operably enclosing said opening, and an odor control dispenser are disclosed. The odor control dispenser selectively dispenses an odor control agent into the vessel body when activated.

A novel air freshener for use in a bathroom is disclosed and comprises a sending unit that is mounted in the tank of a toiler assembly, and a remote dispenser comprised of housing and a base and that is preferably mounted onto the ceiling of the bathroom. The sending unit includes level sensing module that generates a signal whenever the toilet is, flushed (thereby lowering the water level in the toilet tank) and the same signal is received by the remote dispenser. The remote dispenser then reacts by activating for a set period of time a spray pump and drive motor which causes the housing of the remote dispenser to simultaneously rotate while an odor control chemistry is atomized through a spray nozzle located on the housing of the remote dispenser, thereby broadcasting an effective measure of odor control chemistry into the bathroom space.

A composition is provided that includes Bacillus subtilis 2084 (NRRL B-50013) or a strain having all of the identifying characteristics of the Bacillus subtilis 2084 (NRRL B-50013), B. subtilis 27 (NRRL B-50105) or a strain having all of the identifying characteristics of the B. subtilis 27 (NRRL B-50105), and B. licheniformis 21 (NRRL B-50134) or a strain having all of the identifying characteristics of the B. licheniformis 21 (NRRL B-50134). Animal bedding that includes the Bacillus strains is also provided, as well as a method of making the animal bedding. Also provided are methods of controlling odors from animal waste. A method of making a composition including the Bacillus strains is also provided.

The present invention relates to articles suitable for controlling odors, especially odors associated with bodily fluids, which comprise a cationic polysaccharide, preferably chitosan material, together with an odor controlling agent, preferably an odor absorbent agent and / or a chelating agent. This combination provides synergistic reduced odor control towards malodors associated with bodily fluids like menses.

A system and method for the purification and biodeodorizing of a gas are disclosed. The system is highly adaptable and capable of operating in a variety of modes to tailor performance of the system to specific odor control applications. The scrubber stages of the system may each be maintained at different conditions to selectively promote bacterial activity that targets a variety of odorous constituents. The pH level of the irrigation fluid provided to each scrubber stage may be controlled.

Novel compositions and methods for reducing odor. The composition comprises at least one synthetic zeolite, at least one acid and at least one substance selected from a metal oxide, metal, or salt of a metal or metal oxide. A wide range of odors, including ammonia and sulfurous odors, may be controlled by contacting an effective amount of the above composition with the article, substance or environment that emits the undesired odor. The composition may also be incorporated into other substances for odor reduction or control to form odor-controlled articles.

The present invention relates to disposable absorbent articles comprising skin health and odor control additives for the treatment and prevention of skin irritation. The skin health treatment additive comprises an oil soluble wax that forms a tight lattice to protect the skin, and vitamins, lipids and triglycerides to protect and replenish the skin. Such disposable absorbent articles of the present invention are especially advantageous for the treatment and skin breakdown leading to partial full thickness wounds or pressure ulcers.

An absorbent article having a liquid permeable top layer, a liquid impermeable leakproof layer, and a liquid retentive absorbent layer interposed between the layers, wherein the absorbent layer has an odor-controlling member containing (a) 20 to 80% by weight of specific hydrophilic fiber or hydrophilic foam and (b) an odor-controlling agent, the odor-controlling member 9 being composed of a layer made up of a mutually dispersing mixture of component (a) and component (b) or being composed of adjacent layers separately comprising component (a) and component (b).

Provided is a method for realizing a multimedia real-time dynamic fresh-air running machine. According to the method, a digital airflow and odor control method is organically integrated with an electric running machine. The multimedia real-time dynamic fresh-air running machine has the functions of a traditional electric running machine, can also provide a clean, fresh and fragrant running environment for a runner, especially, simulated real-time dynamic fresh air can be generated so that the runner can experience the real feeling that flow air blows in the face and crosses the shoulder during running in an indoor environment or a virtual scene, and the runner even can smell the fragrance of flowers and plants along the running environment.

A clumping animal litter comprises an organic material, a surfactant, and a clumping agent. The clumping agent may be a combination of carboxymethylcellulose (CMC) and guar gum. The material may comprise 1–2% CMC, 3–6% guar gum, 1–5% surfactant, and the remainder wood fiber. The material is formed into pellets with a uniform distribution of the various ingredients. The pellets are then crumbled to improve absorption characteristics. The mixture results in a fully-biodegradable, organic-based litter product with improved clumping abilities, natural odor control, and ease of litter pan maintenance.

A technique for incorporating odor control agent particles into an absorbent article is provided. More specifically, the odor control particles are “homogenously” distributed (e.g., in a substantially uniform manner) within an airformed fiber matrix of an absorbent core of an absorbent article. An absorbent core containing such a homogeneously distributed odor control particles may possess a greater surface area for contacting malodorous compounds, thereby increasing the likelihood of odor reduction.

The present invention is directed to the a composition and method for microbial and odor control. In one embodiment, the method includes mixing amorphous calcium silicate impregnated with a chlorite salt to form a reactant, combining the reactant with an activator to form the composition, and applying the composition to the treatment area. The present invention also includes the preparation of a product usable as a disinfectant and deodorizer, wherein the product includes a mixture of an amorphous and a chlorite salt and wherein the product is packaged as a tablet, permeable sachet, or a permeable patch attachable to a plastic bag. The present invention may also be applied using several methods to reduce the spoilage of produce. The present invention further includes a method for producing chlorine dioxide in accordance with a step-function release profile.

An odor control fragrant additive comprises compacted pellets or granules infiltrated with fragrant oil. Cellulosic material, activated carbon and binder are mixed together and compacted to produce compacted pellets or granules. The cellulosic material preferably is peat moss, which swells up during absorption of fragrant oil and acts as fragrant oil storage. Fragrant oil is delivered to activated carbon that has large surface area, which evaporates the fragrance oil to release steady fragrance output. Thus, the activated carbon, which evaporates fragrance provides steady release of fragrance in the surrounding environment of fragrant compacted pellets or granules for a period of several months without overpowering the environment with excess fragrance. The fragrant compacted pellets or granules may be used to suppress malodor from trashcans or litter boxes and may provide stand-alone additions to drawers and cabinets, emitting pleasant fragrance.

An odor control substrate that contains a plurality of fibers oriented in the z-direction is provided. At least some of the fibers contain portions that are exposed on an outer surface of the substrate. An odor control coating is applied to the substrate so that a majority of the coating resides on the exposed portions. As a result, the odor control substrate may retain certain of its beneficial properties even after being applied with the odor control coating, such as good extensibility, absorbency, etc.

Described are fiber materials having improved malodor scavenger properties and a process for the manufacture of said materials. In particular, described are fiber materials usable in the manufacture of disposable or washable diapers, incontinent products, sanitary napkins and other such hygiene and personal care articles with improved malodor scavenger properties, and to methods of manufacturing such materials. It has been found that the incorporation of, especially nanosized, metal particles and / or a cyclodextrin material into fibers creates a “reactive” material having excellent malodor scavenging properties. More specifically, it has been found that the presence of nanosized metal or metal alloy particles and / or a cyclodextrin material in a fiber material, preferably a synthetic polymer material and more preferably a synthetic thermoplastic polymer fiber material leads to fiber materials or nonwovens having odor-controlling properties. The fiber material especially is useful in the manufacture of hygienic products like disposable diapers.

PCT No. PCT / AU96 / 00076 Sec. 371 Date Aug. 8, 1997 Sec. 102(e) Date Aug. 8, 1997 PCT Filed Feb. 14, 1996 PCT Pub. No. WO96 / 25373 PCT Pub. Date Aug. 22, 1996A fertilizer composition comprises an organic waste, an anti-bacterial agent, a wetting agent, an odor control agent and water.

Waste containers which include a vessel body with an opening for receiving waste materials, a removable cover / lid for operably enclosing said opening, and an odor control dispenser are disclosed. The odor control dispenser selectively dispenses an odor control agent into the vessel body when activated.

There is provided a composite comprising a bonded mixture of a binder and active ingredients such as spill control agents, odor control agents, anti-microbial agents, and biologically active agents. The mixture is applied to and fused and / or coalesced with a first substrate, preferably an nonwoven material that is fluid permeable or impermeable. The composite preferably contains a second substrate, preferably a nonwoven material, placed on top of the mixture that is fused to and / or coalesced with the mixture. Preferably, the composite adsorbs and / or absorbs moisture, liquids, and / or odors, and can provide an anti-microbial effect. The composite can be used to line an outer or inner functional surface such as a shelf, a drawer, a cabinet, a refrigerator, trash receptacle, shipping container, or as a backing for other surfaces such as carpeting, fabric, upholstery, drapes, and the like.

A novel method of producing an odor-controlling textile is disclosed. More specifically, a textile structure is disclosed that contains thin breathable film layer having an activatable antimicrobial odor controlling material. Most specifically, the present invention relates to a textile composite that is composed of a flexible breathable film layer with a measurable gas or vapor transmission rate, that contains metallic silver, zinc and / or copper metallic ions, and is combined with fabric and / or foam layers to form an antimicrobial, odor and infection control laminated structure.

Disclosed herein is a method for treating odors in wastewater treatment bodies. The pH of the body is preferably established above about 6 and most preferably above about 7, usually by adding a base to the body. The oxidation reduction potential of the body is established at about −300 mV or higher and more preferably about −200 mV or higher, usually by adding an oxidizing agent such as oxygen or nitrates. After these conditions are established, sulfur oxidizing bacteria are added to the body. These preferably include Paracoccus denitrificans (formerly called Thiosphaera pantotropha) ATTC number 35,512. The sulfur oxidizing bacterial population should be established at levels of at least about 1×104 cfu / mL and more preferably at levels of 1×105 to 1×106 cfu / mL or higher. The increased ORP and pH levels make sulfate reduction thermodynamically unfavorable. Additionally, the presence of an alternative electron acceptor such as oxygen or nitrate allows the sulfur oxidizing bacteria to oxidize organic acids.

An odor control substrate that is applied with an activated carbon ink is provided. The activated carbon ink is applied in a pattern that covers from about 25% to about 95% of the surface area of the substrate. Although not covering the entire surface, the present inventors have discovered that the activated carbon ink is still capable of providing good odor reduction qualities to the substrate. To further enhance the aesthetic appeal of the odor control substrate to a consumer, one or more colored inks may also be applied the substrate in a pattern that may or may not overlap with the activated carbon ink pattern. The colored ink(s) may contrast well with the activated carbon ink to provide an overall design that is more aesthetically than otherwise would be provided by a uniform coating of activated carbon ink.