摘要:
There is provided a personal care product having a drying agent incorporated into it. The drying agent can reduce or control the relative humidity in the air enclosed by a personal care product significantly. Such a drying agent may be a desiccant or humectant or a combination of both. The drying agent may function using chemical or physical means and may be in fibrous, particulate or other form. The reduction of the relative humidity within a personal care product will reduce skin hydration which is believed to reduce redness and irritation due to contact with fluids.
摘要:
There is provided a personal care product having a vapor sweep comprising a material which reacts with water or urine to form vapor at a rate capable of displacing at least 5, and preferably at least 10, percent of the air volume within said product per minute. This vapor generation sweeps water vapor and humidity from the personal care product, such as a diaper, and so it's believed will contribute to skin health. Materials that, upon reaction with water or urine, produce large volumes of carbon dioxide may be incorporated into the various components of standard personal care products to achieve the objective of this invention. Such materials include leavening agents. Additionally, a seal may be added to the personal care product to encourage the generated vapor to travel a longer path prior to exiting the product in order to maximize water vapor removal.
摘要:
There is provided a personal care product having an osmolality changing agent incorporated into it which achieves the objects of this invention. The agent can reduce skin hydration significantly by increasing the osmolality of a solution outside of, but in contact with, the skin, in order to cause water to move across the skin cellular boundary to dilute the solution. Such a material is preferably compatible with modern fiber forming processes like spunbonding and meltblowing. The reduction of skin hydration may reduce redness and irritation due to contact with fluids.
摘要:
A distinctive absorbent garment article generally delimits a front waistband section, a rear waistband section and an intermediate section which interconnects the front and rear waistband sections. The article has a substantially fluid-impermeable backsheet layer, a liquid permeable topsheet layer, positioned in facing relation with the backsheet layer, and an absorbent body located between the backsheet layer and topsheet layer. The absorbent body includes a distinctive humidity transfer region which is advantageously configured to exhibit relatively low moisture retention. A vapor permeable panel is connected to the backsheet layer at one or more waistband sections of the article, and is arranged in an overlying registry with the humidity transfer region of the absorbent body.
摘要:
Disclosed herein is a liquid absorbent material that is particularly useful as a liner material for personal care absorbent articles such as diapers, training pants, incontinence garments, sanitary napkins, bandages and the like. The material contains a plurality of peaks across its surface at spaced-apart intervals separated by channels. Disposed within the peaks is a liquid absorbing material capable of absorbing body exudates and liquids in general. Due to the materials and the nature of the construction of the present invention, when used as a liner material for personal care absorbent articles such as diapers, it tends to reduce the total surface area in contact with the infant's skin and it also provides a plurality of air channels within the diaper from the front waistband to the back waistband of the diaper thereby providing a path for increased air circulation. The material of the present invention has other uses as, for example, a packing or liner material for packaging and shipping materials containing liquids. In addition, the peaks can contain other additive such as soaps so the material can be used as a wash pad or cloth.
摘要:
Stretchable film laminates including a layer of elastomeric openwork, such as a plurality of elastic strands or an elastomeric mesh structure. The stretchable film laminates may include a film layer bonded to the layer of elastomeric openwork, with the film layer having cross-directional stretch and the laminate having a multi-phase stretchability profile. The stretchable film laminates may be made by extruding a film from a die, stretching the film, forming and stretching a layer of elastomeric openwork, conveying the stretched elastomeric openwork onto the film while the film is stretched, and passing the film and the elastomeric openwork through a nip. The invention also includes a machine capable of producing machine-direction, cross-direction, and biaxial stretch materials. The machine includes at least one extruder, at least one filament die and at least one film die both attached to the extruder(s), and at least one nip downstream of the extruder(s).
摘要:
A biaxially extendible, breathable laminate having liquid barrier properties and low retractive force. The laminate includes a nonwoven web neck-stretched in a first direction to impart extendibility of the web in a second direction mutually perpendicular with the first direction, and a film that is extendible in the second direction. The film can be a breathable, microporous film, and can either be an inelastic film stretched to form rugosities in the second direction, or can be made of an extendible polymer that is extendible in the second direction. Using an appropriate elastomeric lamination and/or creping adhesive, the laminate is creped to produce extendibility in the first direction with some retractive force. The biaxial extendible laminate is particularly useful as an outer cover for diapers and other personal care products.
摘要:
An extensible laminate having improved set and hysteresis is disclosed. The extensible laminate includes an extensible nonwoven web laminated to an elastomeric sheet that have been mechanically stretched in the cross direction after lamination. A method for making the extensible laminate includes laminating an extensible nonwoven web to an elastomeric sheet to form a laminate and mechanically stretching the laminate in a cross direction by at least about 50 percent.
摘要:
A one-step method of making a necked-bonded laminate, wherein the layers of the laminate are formed and laminated within the same process. The method includes forming a nonwoven web, necking the nonwoven web, and immediately feeding the nonwoven web into a laminator where an elastomeric film is laminated to the nonwoven web. The elastomeric film may also be formed during the process prior to being fed into the laminator. Additionally, more than one nonwoven web may be formed and laminated to the elastomeric film during the process. The invention further includes apparatus for carrying out the one-step method.
摘要:
The present invention provides a method of achieving low tension, highly conformable elasticized areas in a nonwoven web construction such as may be suitable for the waistbands or leg openings of disposable absorbent pant garments, cuffs on sleeves of medical garments, or the like. A web, or webs, of nonwoven material which make up the substrate for the elasticized area are provided to be very light weight and flexible and provide the minimal amount of substrate to which an elastomeric liquid barrier material is affixed. The absorbent, or liquid retention, section of an absorbent garment article made according to the present invention will have its own barrier layer facing the backsheet, in order that the backsheet may be composed of a light and conformable material.