KR920701537A - Fiber capable of spontaneously delivering fluids - Google Patents

Abstract

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Description

Fiber capable of spontaneously delivering fluids

Since this is an open matter, no full text was included.

Figure 1A illustrates the behavior of aqueous fluid droplets on conventional fibers that cannot be spontaneously delivered (t = o) after the oval shape has been made. The angle θ represents the general contact angle of the liquid drop on the fiber. The arrow labeled "LFA" indicates the interface of liquid-fibre-air. FIG. 1B illustrates the behavior of aqueous fluid droplets on conventional fibers that cannot spontaneously deliver at time t ₁ (t ₁ > 0). The angle θ still remains as in FIG. 1A. FIG. 1C illustrates the behavior of aqueous droplets on conventional fibers that cannot spontaneously deliver at time t ₂ (t ₂ > t ₁ ). The angle θ still remains as in FIG. 1A. Figure 2A illustrates the behavior of aqueous fluid droplets in membrane contact with fibers that can deliver themselves at time = 0. The arrow labeled "LFA" marks the interface of the liquid-fibre-air. FIG. 2B shows the behavior of aqueous fluid droplets on fibers that can deliver themselves at time = t ₁ (t ₁ > 0). The arrow "LAF" points to the interface of liquid-fibre-air. Figure 2C shows the behavior of aqueous fluid droplets on fibers capable of spontaneously delivering time = t ₂ ((t ₂ > t ₁ ). The arrow “LAF” points to the liquid-fibre-air interface. Figure is a schematic representation of an orifice of a spinneret that can be used to make a fiber that can deliver itself.

Claims (28)

Synthetic fiber that satisfies the following equation for the spontaneous delivery of water onto the surface (1-Xcosθ _a ) <0, In food; θ _a is made of the same material as the fiber and in some cases the advancing contact angle X of water measured on a plate-like film with the same surface treatment is The shape function of the fiber cross section satisfies, P _W is the wet peripheral length of the fiber, r is the radius of the circumference wound around the fiber cross section, D is the length of the minor axis across the fiber cross section. The method of claim 1, This fiber is between 1.5-5. equation In the fiber formula of claim 1, νLA is the surface tension (dynes / cm) of water in air, ρ is the density of the fiber g / cc, and dpf is the denier of the single fiber. The fiber of claim 1 wherein X is about 1.2-about 5. The fiber of claim 1 wherein the denier of the single fiber is between 10-70. The fiber of claim 1 consisting of a material selected from the group consisting of polyester, polypropylene, polyethylene, cellulose esters and nylon. Sixth fiber topped with a hydrophilic lubricant layer. The fiber of claim 1 wherein the width at all depths of each of the grooves in the fiber cross section is less than or equal to the width at the inlet of the groove. At least a portion of the fiber lies near the center of the absorbent article and is located at least away from the center of the absorbent article of the same fiber; The fiber may be in contact with the aqueous fluid for at least 10 seconds near the center of the swallow absorbent product; An absorbent article comprising at least two fibers of claim 1, wherein at least one sink in contact with the fiber at a distance from the center of the absorbent article is contained in the absorbent article. Tow composed of several fibers of claim 1. An absorbent core consisting of a topsheet, a backsheet, and at least one absorbent layer, longer than the width, consisting of a diaper or incontinence pad with a major axis and a minor axis, further comprised of the tow of claim 10 Product. 12. The product of claim 11, wherein the tow is spread evenly across all or part of the width of the product and the metal fibers of the tow are approximately horizontal to the major axis of the product and ... products that stretch throughout. The article of claim 11, wherein the fibers of the tow extend throughout the length of the diaper parallel to the major axis of the diaper. The article of claim 11, wherein said absorbent core consists of fluff pulp and a strong absorbent powder. The diaper containing up to three tows of claim 10, wherein the major axis of each row lies between ± 30 ° of the major axis of the diaper and the tow is directly below the topsheet, well mixed with the absorbent core, or adjacent to the backsheet. The product for absorption of claim 11. A staple fiber composed of several short cut fibers. An absorbent article comprising a sorbent core, a topsheet, and a backsheet, wherein the staple fiber of claim 12 is well mixed with fluff pulp, the diaper or incontinence pad being longer than wide and having a major and minor axis. Tampons, perspiration headbands or wristbands, surgical sponges or wound dressings, perspiration and dispensing insoles for footwear, wipes, pieces of fabric softeners for use in clothes dryers, wound drains or surgical drains, towels , Geotextiles, athletic socks, jogging suits, cosmetic applicators, furniture polishers, fab smear samplers, wood tissue culture materials, blood analysis test elements, ink cartridges, industrial, household deodorants, humidifying fabrics, moisture filtration media Orthopedic cast liners or spunbond structures; The fiber of claim 1 impregnated with one or more of the following. W is between 0.064-0.12 mm; X ₂ is 4W ; X ₄ is 2 W ± 0.5 W; X ₆ 2 W ; X ₈ is 6W ; X ₁₀ is 7W ; X ₁₂ is 9W ; X ₁₄ is 10 W ; X ₁₆ is 11 W ; X ₁₈ tooth 6W θ ₂ is 30 ° ± 30 ° θ ₄ is 45 ° ± 45; Spinnerette with at least one orifice as described in FIG. 3 with θ ₆ of 30 ° ± 30 ° θ ₈ of 45 ° ± 45 °. W is between 0.64-0.12 mm; X ₂₀ is 17W ; X ₂₂ is 3 W ± W; X ₂₄ teeth 4W ; X ₂₆ teeth 60 W ; X ₂₈ this 17W ; X ₃₀ is 2 W ± 0.5 W; X ₃₂ is 72W ; Spinneret having at least one orifice as described in FIG. 4 with θ ₁₀ of 30 ° ± 30 °. W is 0.064-0.12 mm; X ₃₄ is 2W ± 05. W; X ₃₆ teeth 58W ; X ₃₈ this 24W ; θ ₁₂ is 30 ° ; θ ₁₄ is Spinneret with at least one orifice as described in FIG. 5, where n = number of legs per 180 ° = 2-6. W is between 0.064-0.12 mm; X ₄₂ is 6W ; X ₄₄ is 11 W ± 5% W; X ₄₆ is 11 W ± 5 W; X ₄₈ is 24 W ± 10 W; X ₅₀ is 38 W ± 13 W; X ₅₂ is 3W ; X ₅₄ is 6W ; X ₅₆ is 11 W ± 5 W; X ₅₈ is 7W ±% 5W; X ₆₀ is 17 W ± 7 W; X ₆₂ is 28 W ± 11 W; X ₆₄ is 24 W ± 10 W; X ₆₆ is 17 W ± 7 W; X ₆₈ is 2W ± 0.5W; θ ₁₆ is 45 ° ; A spinneret having at least one orifice as described in FIG. 6 with θ ₁₈ of 45 ° ± 15 ° and ₂₀ of 45 ° ± 15 °. W is 0.064-0.12 mm; X ₂ is 4W ; X ₄ is 2 W ± 0.5 W; X ₆ 2 W ; X ₈ is 6W ; X ₁₀ is 7W ; X ₁₂ this 9W ; X ₁₄ is 10 W ; X ₁₆ is 11W ; X ₁₈ tooth 6W ; θ ₂ is 30 ° ± 30 ° θ ₄ is 45 ° ± 45 °; θ ₆ is 30 ° ± 30 ° θ ₈ is 45 ° ± 45 °, room with at least one orifice as described in FIG. dune. W is between 0.064-0.12 mm; X ₂ is 4W ; X ₄ is 2 W ± 0.5 W; X ₆ 2 W ; X ₈ is 6W ; X ₁₀ is 7W ; X ₁₂ this 9W ; X ₁₄ is 10 W ; X ₁₆ is 11W ; X ₁₈ tooth 6W at least one orifice as described in FIG. 8; θ ₂ is 30 ° ± 30 °, θ ₄ is 45 ° ± 45 °, θ ₆ is 30 ° ± 30 °, θ ₈ is 45 ° ± 45 ° and Spinneret with. W is between 0.064-0.12mm, X ₇₂ 8W ; X ₇₄ with 8W ; X ₇₆ is 12 W ± 4 W; X ₇₈ is 8 W ± 4 W; X ₈₀ is 24 W ± 12 W; X ₈₂ is 18 W ± 6 W; X ₈₄ is 8W ; X ₈₆ is 16 W ± 6 W; X ₈₈ is 24 W ± 12 W; X ₉₀ is 18 W ± 6 W; X ₉₂ is 2W ± 0.5W; θ ₂₂ is 135 ° ± 30 °, θ ₂₄ is 90 ° ± θ ₂₆ is 45 ° ± 15 °, θ ₂₈ is 45 ° ± 15 °, θ ₃₀ is 45 ° ± 15 °, θ ₃₂ is 45 ° ± 15 °, θ ₃₄ is 45 ° ± 15 ° θ ₃₆ is 45 ° A spinneret with at least one orifice as described in Figure 6A with ± 15 °, θ ₃₈ equals 45 ° ± 15 °. A fiber that satisfies the following equation, consisting of heating the fiber-forming material to a temperature above its melting temperature and extruding the heated material through a spinneret having at least one orifice to produce the desired fiber, followed by proper surface treatment. How to prepare. (1-Xcosθ _a ) <O Where θ _a is made of the same material as the fiber and in some cases the advancing contact angle of water measured on a plate-like film with the same surface treatment, X is the equation X = The shape function of the fiber cross section satisfies, P _W is the wet peripheral length of the fiber, r is the radius of the circumference wound around the fiber cross section, D is the length of the minor axis across the fiber cross section. A method of spontaneously delivering an aqueous fluid, which is capable of spontaneously delivering water onto a surface and contacting an aqueous fluid with synthetic fibers satisfying the following equation. (1-Xcosθ _a ) <0 Where θ _a is made of the same material as the fiber and in some cases the advancing contact angle of water measured on a plate-like film with the same surface treatment, X is the equation X = The shape function of the fiber cross section satisfies, P _W is the wet peripheral length of the fiber, r is the radius of the circumference wound around the fiber cross section, D is the length of the minor axis across the fiber cross section. A method of spontaneously delivering an alcoholic fluid, comprising contacting an alcoholic fluid with a synthetic fiber capable of spontaneously delivering water onto a surface and satisfying the following equation. (1-Xcosθ _a ) <0 Where θ _a is made of the same material as the fiber and in some cases the advancing contact angle of water measured on a plate-like film with the same surface treatment, X is the equation X = The shape function of the fiber cross section satisfies, P _W is the wet peripheral length of the fiber, r is the radius of the circumference wound around the fiber cross section, D is the length of the minor axis across the fiber cross section. ※ Note: The disclosure is based on the initial application.