Diaper tissue

One of the easiest substances to image in the NIR spectral region is water. It is also an important substance to be able to monitor in industries concerned with absorbent materials, such as toilet tissue, paper towels, diapers, catamenial products and fabrics. The NIR images shown in Fig. 8.1 were collected with a 320 x 240 element InGaAs FPA through a 1.4 p,m optical bandpass filter. 

Packaging material Rocks and soil Diaper and hygiene tissues Biofihns... 

The kinetics of water transport has a major impact on many applications. Very rapid kinetics of fluid uptake is vital for products such as diapers and hygiene tissues, whereas controlled swelling and subsequent dissolution are... 

Undecylenic acid preparations are used in the treatment of various dermatomycoses, especially tinea pedis. Concentrations of the acid as high as 10%, as well as those of the acid and salt in the compound ointment, may be applied to the skin. The preparations usually are not irritating to tissue, and sensitization is uncommon. In tinea pedis, the infection frequently persists despite intensive treatment and the clinical cure rate is at best 50%. Other agents therefore are preferred. Undecylenic acid preparations also are approved for use in the treatment of diaper rash, tinea cruris, and other minor dermatological conditions. 

Packaging Corrugated board manufacture Carton side-seam and closures (including glue lap and case sealing) Composite bonding of disposable products (towel and tissue laminating, pick up and tail-tie diapers, sanitary napkins, hospital supplies)... 

Polymer gels can be of both natural and synthetic origin. Examples of natural gels are the cornea, the vitreous, and the connective tissues in our body. Examples of synthetic gels are sodium polyaaylate gels used in diapers and poly-(2-hydroxyethyl methacrylate) gels used in soft contact lenses. ... 

Most diapers currently available are bulk stmctures. A typical diaper is composed of three main components nonwoven layers (top sheet or facing sheet keep the surface dry to facilitate good skin care conditions, back sheet, and distribution layer that prevents leakage and give a cloth-like feel to the external surface), core layer (fluff pulp, tissue, and polymer transfer fluid from the surface, absorb, and hold excretes), and breathable film. Each has a different contribution to the thermal comfort property of the multilayered diaper, (llhan, ingik, im ek, 2015). 

Tissue essentially serves as a carrier for the pad (the pad is the absorbent core of the diaper) and helps reduce the pinholes created during the compression process carried out by conAnuous drum forming systems. These tissues, typically at 16 g/m or more, protect the inner plasAc from the SAP. Instead of tissue, it is possible to use a low-gauge SMS nonwoven material as the carrier (for the pad) it can be placed right next to the back sheet or as a full wrap material around the core. In order for the SMS carrier to be cost compeAAve against tissue paper, it needs to be less than 12 g/m. ... 

Medical textile products used in hospital wards include bedding, clothing, mattress covers, incontinence products, clothes, and wipes. Incontinence products for patients are available in both diaper and flat-sheet forms, with the latter being used for bedding. Cloths and wipes are made from tissue paper or nonwoven-bonded fabrics, which may be soaked with an antiseptic finish. 

The first disposable absorbent article of commercial significance was the sanitary napkin introduced after the First World War. This product followed the development of the creping process whereby wet-laid paper (cellulose tissue) could be made soft yet strong. In the 1930s, Tampax Corporation introduced the internal catamenial absorption device, considered to be the ultimate in discreetness. The original Tampax brand tampon was oriented long staple cotton fiber overwrapped with a nonwoven rayon coversheet. The absorbent medium used In most modern tampons is wood fiber (cellulose fluff). Fluff is also the principal absorbent material used in disposable diapers and Incontinence devices. 

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