Absorbent materials configured to sequester trimethylamine (TMA), absorbent articles made therefrom, related methods of use, methods of measuring a reduction of free TMA, and related methods of making absorbent articles are described.

A SAP evaluation apparatus includes: a main body installed with a lifting bar that is raised or lowered; a container portion installed under the lifting bar in the main body and having an internal containing space for containing an absorber; an operating portion connected to the lifting bar and having a lifting plate that is raised or lowered within the containing space and applies pressure to the absorber and an injection portion for injecting an ink in the direction of the absorber; a dispersion measurement portion for measuring the dispersion of the ink through the absorber; and a controller installed at the main body to measure absorption of the ink into the absorber and measure swelling capacity of the absorber while the ink is injected into the absorber.

A SAP evaluation apparatus includes: a main body installed with a lifting bar that is raised or lowered; a container portion installed under the lifting bar in the main body and having an internal containing space for containing an absorber; an operating portion connected to the lifting bar and having a lifting plate that is raised or lowered within the containing space and applies pressure to the absorber and an injection portion for injecting an ink in the direction of the absorber; a dispersion measurement portion for measuring the dispersion of the ink through the absorber; and a controller installed at the main body to measure absorption of the ink into the absorber and measure swelling capacity of the absorber while the ink is injected into the absorber.

Superabsorbent particles have a median size of from about 50 to about 2,000 micrometers and contain a porous network that includes a plurality of nanopores having an average cross-sectional dimension of from about 10 to about 500 nanometers, wherein the superabsorbent particles exhibit a Vortex Time of about 80 seconds or less and a free swell gel bed permeability (GBP) of 5 darcys or more, of 10 darcys or more, of 20 darcys or more, of 30 darcys or more, of 60 darcys or more, or of 90 darcys or more. A method for forming such superabsorbent particles includes forming a composition that contains a superabsorbent polymer and a solvent system; contacting the composition with a non-solvent system to initiate formation of the porous network through phase inversion; removing non-solvent from the composition; and surface crosslinking the superabsorbent particles.

A disposable diaper product useful for collecting a urine sample from an infant is disclosed. In one example the product may have a liquid control structure overlying a liquid impermeable backsheet, with a plan surface area defining a volume coextensive therewith, wherein a portion of the volume defined by at least 50 percent of the plan surface area contains no more than 50 percent by weight absorbent material. In another example the product may have a liquid control structure overlying a liquid impermeable backsheet, and have an average Liquid Release Ratio of at least 3 percent. A method for collecting a urine sample from an infant is also disclosed, in which a diaper is used for collection.

The present disclosure relates to an environmentally friendly sanitary napkin including: a permeable inner sheet configured to come into contact with a skin and allow secretions to pass therethrough; an impermeable waterproof outer sheet having the same size and shape as those of the inner sheet and bonded to the inner sheet by fusion; an absorbent pad fixedly inserted between the inner sheet and the waterproof outer sheet and configured to absorb secretions such as menstrual blood that passes through the inner sheet; and an adhesive pad inserted into an appropriate position between the absorbent pad and the waterproof outer sheet, and provided on the absorbent pad and the lower surface of the waterproof outer sheet, and configured to fix the sanitary napkin by adhesion to the inside of underwear, wherein the inner sheet, the waterproof outer sheet, the absorbent pad and the adhesive pad are degradable in water or are biodegradable.

The environmentally friendly sanitary napkin of the present disclosure is degradable by a large amount of water in a septic tank when flushed down a toilet bowl after use, and is biodegradable in soil, thus preventing environmental pollution problems.

In addition, the environmentally friendly sanitary napkin may exhibit antimicrobial effects against harmful bacteria in the vagina and exhibit an excellent effect on sanitariness by suppressing the generation of odor caused by secretions.

Described herein are absorbent composites containing embossed superabsorbent materials and methods of manufacturing absorbent composites containing embossed superabsorbent materials. The absorbent composites have significantly improved rates of intake. Compositions and methods described herein are useful in a variety of absorbent products.

A textile for use as a reusable pad, e.g., a reusable incontinence pad, is provided that is intended to wick and retain moisture or liquid(s), such as bodily fluids (e.g., urine, blood, etc.), away from users of their incontinence pad. Moisture or liquid deposited on an upper surface of the incontinence pad is wicked through one or more layers of material included in the incontinence pad via an increasing capillary gradient using capillary forces. The incontinence pad relies on capillary forces to drive moisture from the incontinent person into the inner layer(s) of the incontinence pad, and leaving a top layer of the incontinence pad dry to the touch. A gradient of capillary size can be present in the incontinence pad in a direction away from the incontinent person, which accordingly encourages liquid to migrate away from the incontinent person and be desirably retained therein.

A textile for use as a reusable pad, e.g., a reusable incontinence pad, is provided that is intended to wick and retain moisture or liquid(s), such as bodily fluids (e.g., urine, blood, etc.), away from users of their incontinence pad. Moisture or liquid deposited on an upper surface of the incontinence pad is wicked through one or more layers of material included in the incontinence pad via an increasing capillary gradient using capillary forces. The incontinence pad relies on capillary forces to drive moisture from the incontinent person into the inner layer(s) of the incontinence pad, and leaving a top layer of the incontinence pad dry to the touch. A gradient of capillary size can be present in the incontinence pad in a direction away from the incontinent person, which accordingly encourages liquid to migrate away from the incontinent person and be desirably retained therein.

The present disclosure relates to an absorbent article comprising a liquid-permeable topsheet, a backsheet and an absorbent core sandwiched between the topsheet and the backsheet, the absorbent article extending in a longitudinal direction (L) and in a transverse direction (T), the absorbent article defining a front waist portion, a rear waist portion and a crotch portion arranged between the rear waist portion and the front waist portion as seen in the longitudinal direction (L) and a buttocks portion arranged between the crotch portion and the rear waist portion. The topsheet comprises a first lubricant zone provided with a lubricant agent, the first lubricant zone being arranged over the buttock's portion.