Sanitary napkin

Aloisture Absorbent Synthetic Paper. Processes for making a water absorbent synthetic paper with dimensional stabihty have been developed by several companies. In a process developed by Mitsubishi Rayon, acrylic fiber is insolubilized by hydra2ine and then hydroly2ed with sodium hydroxide. The paper, formed from 100 parts fiber and 200 parts pulp, has a water absorption 28 times its own weight (96). Processes for making hygroscopic fibers have also been reported in the patent Hterature. These fibers are used in moisture absorbing nonwovens for sanitary napkins, filters, and diapers. 

The uses of spunbonded fabrics as coverstock in diapers and other personal absorbent devices will most likely remain unchallenged for the near term. Virtually any other nonwoven production method appears to be at a cost disadvantage opposite spunbonded polypropylene. There have been composite products developed from meltblown and spunbonded combinations, where areas of either improved hydrophobicity or hydrophilicity are desired. These products can be produced on-line at relatively low additional cost and offer high value to diaper manufacturers. Any competitive threat is likely to come from advances in film technology such as large improvements in perforated film used in segments of absorbent product appHcations, particularly sanitary napkins. 

The primary non-woven applications for hot melts are in disposable articles such as diapers and sanitary napkins (see Fig. 22). These articles are made by high speed processes and are immediately packaged in sealed plastic bags, thus they are prime candidates for hot melt use. The applications are broken down into three categories, requiring three different types of adhesives construction, elastic attachment, and garment attachment. 

The adhesive strip on the outside of sanitary napkins is conventionally applied by hot melt transfer coating in-line with the production of the napkin itself. The adhesive in this application performs a function in the product beyond just holding the parts together. Thus, the requirements are more numerous ... 

Functional adhesives provide the bonded product with a new or enhanced attribute. For example, adhesives now exist which promote the penetration of fluids into bonded non-woven products by virtue of their low contact angle with water [82]. These materials have been used successfully in both diapers and sanitary napkins for bonding the non-woven cover sheet to the absorbent core. Other examples are water absorbing adhesives that can act as wetness indicators by changing color [69] or can be bonded once moistened ]99]. Additional functionalities are currently underdevelopment. 

Damen-binde, /. sanitary napkin. brett, n checkerboard, -spiel, n. checkerr, draughts Damhlrschfelli n. buckskin, damlt, adv. therewith, with, by it. — conj. ii order that. 

Woche,/. week (pi.) lying-in, confinement. Wochen-. weekly lying-in, obstetric, puerperal, maternity, -bett, n. childbed, -binde, /. sanitary napkin, -fluss, m. lochia, wochenlang, adv. for weeks. 

Use a sanitary napkin or panty liner to protect cloHiingif necessary. 

Sanitary napkins (nylon/poly- urethane) 5.5 Organotin cation Kannan et al. (1999)... 

Lower-density E-plastomers have found alternate use in cast film processes to make elastic film laminates with good breathability which contain laminates of liquid impermeable extensible polymeric films with extensible-thermoplastic-polymer-fiber nonwovens and nonwoven webs of polyethylene-elastomer fibers as the intermediate layers. The development relates to a breathable film including an E-plastomer and filler that contributes to pore formation after fabrication and distension of the film. The method and extent of distension is designed to produce a breathable film by stretching the film to form micropores by separation of the film of the E-plastomer from the particulate solids. This film is useful for manufacture of absorbent personal-care articles, such as disposable diapers and sanitary napkins and medical garments. In detail, these constructions comprise a liquid impermeable extensible film comprising polyolefins. The outer layer contains extensible-thermoplastic-polymer-fiber nonwovens, and an elastic intermediate layer contains nonwoven webs of fiber E-plastomers. The intermediate layer is bonded to the film layer and the outer... 

Various other disposable products have been developed from poly(HASCL). Using common techniques, fibers and non-woven fabrics have been manufactured. These materials would be very suitable for use in sanitary napkins and diapers [21, 115, 116]. Other typical single-use products include disposable razors and cutlery and were produced from molded poly(HASCL). 

Piastic strapping and sheeting debris from the offshore petroieum industry and peiiets of poiyethyiene, poiypropyiene, and poiystyrene Condoms, tampon appiicators, sanitary napkins, and disposabie diaper shieids... 

Extensive progress has been made in the technological applications of gels [1, 7, 8]. Disposable diapers and sanitary napkins use gels as super-water absorbents. Gel sheets have been developed to keep fish and meat fresh. Gels are... 

Natural and synthetic zeolites, a family of aluminosilicates with pores and cavities in the range 0.4-1.5 nm, are well-known heterogeneous catalysts and sorbents. Zeolite-incorporated cellulosic fibers and membranes could be suitable for medical antibacterial materials, deodorizers, absorbent pads, sanitary napkins, gas separators, ion exchangers, and so forth however, the complete and continual use of the whole zeolite surface is not easy in the... 

Use Applications are as a backing for plastic film padding for surgical dressings, diapers, sanitary napkins drapes and other decorative textile products filtration shoe liners industrial wiping and... 

The most widely spread use of superabsorbent polymers is in personal hygiene products such as disposable infant diapers, feminine sanitary napkins, and adult incontinence articles. In particular, over 90% of the total superabsorbent polymers are sold as infant... 

Disposable infant diapers Feminine sanitary napkins Adult incontinence articles... 

Acrylic acid or methacrylic acid-starch graft copolymers were proposed as floc-culants for bauxites,2714,3095 agents for sizing cotton,3096-3098 tanning materials,3099 paper additives,3100 and also for sanitary napkins, diapers, tampons, and sick-bed sheets.3101-3104 Particular attention was devoted to the use of vinyl monomer grafted onto crosslinked starch.3105 Other applications include antiflammatory... 

Sanwet. [Sanyo Chem. Industries] Starch grafted polyacrylate absorbent polymers for diapers, sanitary napkins, soil conditicmers. 

In addition to its uses as a herhal remedy, the primary use of cinnamaldehyde is as a food additive to enhance the flavor and/or odor of food products. It is used most commonly in cake mixes, chewing gums, chocolate products, synthetic cinnamon oils, cola drinks, ice creams, soft drinks, and vermouth. The compound is also added to a number of cosmetics and home care products to improve their odor. Such products include deodorants, detergents, mouthwashes, perfumes, sanitary napkins, soaps, and toothpastes. Finally, cinnamaldehyde is used to some extent in agriculture as an insecticide and fungicide. 

It could be an allergen and skin irritant. If inhaled repeatedly, it could cause pulmonary fibrosis that may be due to asbestos in the powder. Also, a study of women who used talcum powder on their sanitary napkins indicated that they had an increased incidence of ovarian cancer. 

In the work from Liu [105], an eco-friendly superabsorbent based on flax yarn waste for sanitary napkin applications has been successfully prepared. Till now, most of the waste cellulose materials from textile industry, such as cotton linter, cotton yarn waste and flax yarn waste, are still burned or land filled, causing both resource waste and environmental pollution [105, 106]. Reutlllzatlon of these waste materials could not only reduce the consumption of cotton or flax cellulose but also decrease the treatment of industrial waste. The major component [70%] of flax yarn waste is cellulose, which has been introduced as a basic skeleton of superabsorbent in previous studies [105, 106-109]. Fluff pulp, as a good absorbent material, is a kind of special pulp with villiform fibers. Nowadays, it is widely used as raw material for the production of sanitary napkin and paper diaper [105]. 

The objectives of this study were to investigate the preparation of an eco-friendly superabsorbent based on flax yarn waste under different synthesis conditions and to determine the properties of the resulting superabsorbent used for absorbent core layer of sanitary napkins. The results gained from this study strongly suggest that the prepared FYW/PAA superabsorbent has potential application in the field of eco-friendly sanitary napkins as a low-cost and eco-friendly synthetic material [105]. 

Although regular rayon, with water retention as much as 100% of its weight, is the most absorbent of the human-made fibers, variants have been produced that far exceed this capacity [291]. The demand for superabsorbent fibers arises from the growing use of rayon in surgical and medical supplies, sanitary napkins, disposable diapers, and other nonwovens [292]. The rayon industry has responded with several versions of modified fibers. 

Aluminum sulfate Bauxite N-Hydroxysuccinic acid Potassium permanganate Urea deodorizer, amine diapers/sanitary napkins Oxidized cellulose deodorizer, antidiarrheal prods. 

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