WO2017130899A1 - Fibre composite, matériau de poils de brosse utilisant une fibre composite et destiné à être utilisé dans une brosse, brosse utilisant une fibre composite - Google Patents

Fibre composite, matériau de poils de brosse utilisant une fibre composite et destiné à être utilisé dans une brosse, brosse utilisant une fibre composite Download PDF

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Publication number
WO2017130899A1
WO2017130899A1 PCT/JP2017/002109 JP2017002109W WO2017130899A1 WO 2017130899 A1 WO2017130899 A1 WO 2017130899A1 JP 2017002109 W JP2017002109 W JP 2017002109W WO 2017130899 A1 WO2017130899 A1 WO 2017130899A1
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Prior art keywords
composite fiber
fiber
resin
brush
resin phase
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PCT/JP2017/002109
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English (en)
Japanese (ja)
Inventor
山本健雄
土岐美鈴
二井克典
柴田剛志
増田正人
松浦知彦
Original Assignee
東レ・モノフィラメント株式会社
東レ株式会社
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Priority to JP2017509048A priority Critical patent/JPWO2017130899A1/ja
Publication of WO2017130899A1 publication Critical patent/WO2017130899A1/fr

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    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/04—Preparing bristles
    • A46D1/05—Splitting; Pointing
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers

Definitions

  • the present invention relates to a composite fiber having novel functionality and design, and a bristle material and a brush using the same.
  • sea-island composite fiber manufacturing techniques that can form the distribution of islands and the cross-sectional shape of the islands in various forms have been proposed (Patent Documents 1 to 3).
  • Patent Documents 1 to 3 sea-island composite fiber manufacturing techniques that can form the distribution of islands and the cross-sectional shape of the islands in various forms have been proposed (Patent Documents 1 to 3).
  • this proposed technology in the island-island composite fiber, it is possible to substantially freely design the size, arrangement, cross-sectional shape, arrangement density, etc. of the island part with respect to the sea part and meet various requirements in various fields. When it becomes possible, there are great expectations.
  • various fields for example, in the field of bristle materials for brushes, if such proposed technology is adopted, it becomes possible to manufacture composite fibers having new functionality and design in a new form that was not found in the prior art It is considered to be.
  • a technique using a monofilament of synthetic fiber as a brush hair material is widely known.
  • a brush using such a brush hair material for example, a toothbrush
  • Various functions for example, the effect of cleaning the teeth with the hair tips, the unique tactile sensation, the soft tactile sensation that does not damage the object to be cleaned, and the appearance (designability) must be excellent in a balanced manner. It is desired.
  • the bristle material for the brush is formed of a monofilament made of a single material up to the hair tip, it may be difficult to satisfy such a requirement.
  • the brush bristle material is made thicker, the brush becomes stronger and the effect of cleaning the tooth flat surface and the massage effect such as gums are enhanced.
  • the cleaning effect between the teeth may be reduced, or the feeling of touching the gums will be too strong, and it may be difficult to obtain a soft touch that makes it difficult to damage the gums.
  • the hair material for the brush is made thin with a single material monofilament up to the bristles, the cleaning effect between the teeth can be enhanced, but the waist of the brush hair material becomes weaker over the entire length, and the gums There is a risk that the massage effect such as, etc. may be reduced, or the durability of the hair material itself may be reduced.
  • the cleaning effect between the teeth usually it is required to make the hair tip soft, but if so, it is good for those who have weak gums due to periodontal disease, There is a risk that many people may feel unsatisfactory hair at their ends.
  • excellent design properties such as color tone cannot be expected.
  • sea-island composite fibers are used as the bristle material for the brush, and the sea-island component is contained at the base of the bristle when used for the brush.
  • a bristle material for a brush having an integrated composite fiber structure in which a large number of islands are exposed and separated at the tip Patent Document 4
  • sea-island composite fiber manufacturing technology that can design the island size, arrangement, cross-sectional shape, arrangement density, etc. with respect to the sea part, as described above, can be designed substantially freely.
  • a composite fiber having novel functionality and designability that can be produced can be produced.
  • JP 2011-174215 A JP 2012-127002 A JP 2013-14872 A Japanese Patent Laid-Open No. 3-99604
  • the object of the present invention is to focus on the recently proposed sea-island composite fiber manufacturing technology that allows virtually free design of the cross-sectional shape, and has novel functions and design features not found in the prior art. It is to provide a new type of composite fiber that can be developed in the field, and in addition, by using the new type of composite fiber, a hair material particularly suitable for brushes, and a brush using the hair material are provided. It is to provide.
  • the composite fiber according to the present invention is a composite fiber formed of at least two types of resin phases, and each resin formed of the at least two types of resin phases in a fiber cross section.
  • Each of the phase portions is formed in a resin phase portion extending in a spiral shape from the outer peripheral surface of the fiber toward the center portion, and the spiral shape is at least one imaginary straight line passing through the center of the fiber cross section.
  • the number of resin phase portions traversed by one is formed in a shape that is 3 or more.
  • each resin phase portion may extend in a spiral shape as a whole, and in addition to a shape in which the resin phase portion extends in a smooth curved shape, a spiral shape with a curved shape extending in a wavy shape And a form extending in multiple vortices.
  • the conjugate fiber is formed of at least two types of resin phases, it is possible to constitute a conjugate fiber that expresses at least two types of friction coefficients without being mixed. It becomes possible to constitute a composite fiber having a unique tactile sensation, and a composite fiber excellent in appearance (designability) by being formed of different resin phases (for example, resin phases of different colors) It becomes possible to configure.
  • a composite fiber with at least two types of resin phases having different thermal characteristics it becomes possible to give a self-crimping property by heating, and the bulkiness can be increased by crimping, It is also possible to realize a composite fiber with improved liquid or powder inclusion performance (holding performance), foaming performance, and the like.
  • each resin phase appears on the outer peripheral surface of the fiber.
  • the properties of each resin phase coefficient of friction, color tone, tactile sensation, etc. are surely expressed on the outer peripheral surface of the fiber, and the spiral shape is a shape having a predetermined number of windings, particularly the center of the fiber cross section.
  • the diameter of the conjugate fiber is preferably in the range of 0.5 to 15,000 ⁇ m, more preferably in the range of 5 to 5,000 ⁇ m, and still more preferably in the range of 50 to 1,000 ⁇ m.
  • the range is particularly preferably 80 to 500 ⁇ m.
  • the diameter of the composite fiber is smaller than 0.5 ⁇ m, the characteristic characteristics due to the spiral form of each resin phase part are hardly expressed, and it is less than 15,000 ⁇ m. When it becomes large, it becomes a form close to a rod rather than a fiber, and its use may be extremely limited.
  • the width of each resin phase portion extending in a spiral shape in the fiber cross section is not particularly limited, but the narrowest width of each resin phase portion is 0.1 to It is preferably in the range of 3,000 ⁇ m, more preferably in the range of 1 to 1,000 ⁇ m, still more preferably in the range of 10 to 300 ⁇ m, and particularly preferably in the range of 15 to 150 ⁇ m. Since the composite fiber according to the present invention is characterized in that each resin phase portion extends in a spiral shape as described above, the narrowest width of each resin phase portion is 0 although it depends on the diameter of the composite fiber.
  • the spiral-shaped extended form When the diameter is smaller than 1 ⁇ m, the spiral-shaped extended form is not easily apparent, and thereby the characteristic characteristics of this form are hardly expressed. If the narrowest part width of each resin phase part is larger than 3,000 ⁇ m, it becomes difficult to adopt a spiral-shaped extended form, or even if it is taken, the number of spiral turns is extremely reduced. Characteristics are less likely to be expressed.
  • At least one end portion in the longitudinal direction of the conjugate fiber can be formed in a tapered shape. If configured in this way, in particular, when it is desired to have excellent functionality at the longitudinal end of the composite fiber, for example, the composite fiber is applied to the brush hair material and the hair material end (hair tip) is superior. When it is desired to have high functionality (for example, better cleanability for fine parts), it is possible to satisfy the requirement more easily and reliably.
  • the tip of the hair It becomes easier to form spaces and grooves for scraping and capturing dirt.
  • the composite fiber according to the present invention when applied to a bristle material for a brush, as described later, hair ends of various specific forms are formed at one or both ends in the fiber longitudinal direction of the bristle.
  • the length in the fiber longitudinal direction of the tip is preferably in the range of 0.5 to 10 mm, and more preferably in the range of 1 to 5 mm.
  • the length of the bristles is shorter than 0.5 mm, it is difficult to obtain an excellent cleaning property for fine parts such as a space between the teeth by the bristles, and it is difficult to obtain a good soft touch.
  • the bristles that tend to weaken the waist may become too long, and the bristles will be deformed too much, resulting in a cleaning effect (e.g., dirt).
  • a cleaning effect e.g., dirt
  • the effect of entanglement) and massage effects such as gums may be insufficient.
  • resin phases having various characteristics can be adopted as the at least two types of resin phases.
  • Forms composed of resin phases with different speeds can be adopted.
  • the resin phase portion composed of at least one type of resin phase protrudes in the fiber longitudinal direction at at least one end in the fiber longitudinal direction. It is possible. Examples of various forms will be described later.
  • the resin phase portion protruding in the longitudinal direction of the fiber can be in a form protruding in a drill shape.
  • the spiral adjacent layer in the resin phase part protruding in the fiber longitudinal direction may be formed in a groove recessed in the fiber longitudinal direction.
  • Such a groove is preferably formed in a groove having a depth of 0.1 mm or more, more preferably in a groove having a depth of 0.5 mm or more, and further preferably in a groove having a depth of 1 mm or more.
  • the width of the groove is preferably in the range of 10 to 300 ⁇ m, more preferably in the range of 15 to 150 ⁇ m.
  • the type of the resin is not particularly limited.
  • medical agent dissolution rate is slower than this polyester-type resin can be illustrated.
  • the one resin phase is polybutylene terephthalate (PBT) and the other resin phase is nylon (Ny), or the one resin phase is polyethylene terephthalate (PET).
  • PBT polybutylene terephthalate
  • PET polyethylene terephthalate
  • a form in which the resin phase is made of polybutylene terephthalate (PBT) can be exemplified.
  • the outer shape of the cross section of the conjugate fiber is preferably substantially circular as shown in the following examples, but is set to any shape other than a circle. It is also possible to do.
  • the cross-sectional outer shape can be arbitrarily set according to the application and intended use.
  • the present invention is composed of a composite fiber as described above, and one or both ends in the longitudinal direction of the composite fiber are used as a hair tip part, and the brush hair material is used at least in part. Also provide about the brush that is.
  • the brush according to the present invention is a bristle material capable of exerting a good balance of excellent cleanability of the gap portion of the object to be cleaned, unique touch and soft touch to the object to be cleaned, excellent foaming performance, etc. Since it is used, it is particularly suitable as various brushes such as a toothbrush, a makeup brush, and a brush for precision cleaning.
  • a range of 1 to 50 mm is exemplified as a preferable range of bristle length (length from the brush root to the bristles), more preferably The range is 5 to 35 mm.
  • each resin phase portion extends in a spiral shape in the cross section, which is not found in the prior art.
  • Bicomponent fibers can be provided.
  • the hair material having a unique tactile sensation suitable for a brush, a design property, a cleaning property, a dirt scraping performance, a foaming performance, etc., formed using the above-described composite fiber. can be configured.
  • various brushes using at least a part of the brush bristle material as described above can be provided, and in particular, a brush suitable as a toothbrush, a makeup brush, a cleaning brush, or the like can be provided. .
  • FIG. 1 shows a composite fiber according to an embodiment of the present invention.
  • FIG. 1A is a schematic cross-sectional view of the composite fiber
  • FIG. 1B is a schematic side view of one end of the composite fiber.
  • It is a schematic cross-sectional view showing various embodiments of the conjugate fiber according to the present invention.
  • the one end part of the composite fiber which concerns on another various form of this invention is shown,
  • FIG. 3 (A) The schematic side view
  • FIG. B schematic perspective view
  • FIG. B schematic perspective view
  • It is a schematic block diagram which shows the flocking method at the time of using the bristle material for brushes for a toothbrush.
  • FIG. 1 shows a conjugate fiber 1 according to an embodiment of the present invention
  • FIG. 1 (B) shows one end of the conjugate fiber 1.
  • the composite fiber 1 is formed of two types of resin phases 2 and 3 (in this embodiment, two types of resin phases having different color tones and / or friction coefficients) and crossing the fibers.
  • Each of the resin phase portions formed of the two types of resin phases 2 and 3 is formed in a resin phase portion extending in a spiral shape from the fiber outer peripheral surface 4 toward the center portion, and
  • the spiral shape has a shape in which the number of resin phases 2 and 3 parts crossed by at least one of the virtual straight lines passing through the center 5 of the fiber cross section (for example, one of the center lines 6a and 6b) is 3 or more ( That is, it is formed so that the number of spiral windings is a predetermined number or more. Since the spiral shapes of the resin phases 2 and 3 are extended from the fiber outer peripheral surface 4 in the fiber cross section, the resin phases 2 and 3 appear on the fiber outer peripheral surface 4, respectively.
  • the surface 4 is formed of the resin phase 3, and the resin phase 2 appears in a strip shape in the fiber longitudinal direction.
  • the resin phases 2 and 3 are both made of polybutylene terephthalate (PBT) and have different color tones and / or friction coefficients.
  • PBT polybutylene terephthalate
  • the spiral cross-section composite fiber 1 having such a configuration should be designed substantially freely in terms of the size, arrangement, cross-sectional shape, arrangement density, and the like of the island relative to the sea described in Patent Documents 1 to 3 described above. It can be intentionally made using a technique capable of
  • the composite fiber 1 according to this embodiment is formed of the two types of resin phases 2 and 3 as described above, it forms a composite fiber that expresses two types of friction coefficients without being mixed. This makes it possible to form a composite fiber 1 having a unique tactile sensation, and to make the appearance (design) by being formed of different resin phases 2 and 3 (for example, resin phases having different color tones). It is possible to construct the composite fiber 1 having excellent properties. In addition, by forming the composite fiber 1 with two types of resin phases 2 and 3 having different thermal characteristics (for example, thermal expansion characteristics and thermal contraction characteristics), it is possible to have self-crimpability by heating.
  • thermal characteristics for example, thermal expansion characteristics and thermal contraction characteristics
  • the composite fiber 1 that has increased bulkiness, improved liquid or powder inclusion performance (holding performance), foaming performance, and the like.
  • the characteristics (friction coefficient, color tone, touch, etc.) of each resin phase 2 and 3 are the outer periphery of the fiber. It is surely expressed in terms.
  • the spiral shape of the resin phases 2 and 3 is formed into a shape having a predetermined number of windings or more, in particular, a shape in which the number of resin phase portions traversed by at least one imaginary straight line passing through the center of the fiber cross section is 3 or more.
  • a brush capable of exhibiting novel functions and design features that have not been conventionally achieved is realized.
  • the composite fiber according to the present invention can take various forms as shown in FIG.
  • the composite fiber 11 shown in FIG. 2 (A) has a form substantially equivalent to that shown in FIG. 1 (A), and is formed of two types of resin phases 12 and 13 in the fiber cross section.
  • the resin phase part is formed in the resin phase part extended in the spiral shape from the fiber outer peripheral surface 14 toward the center part, respectively.
  • each resin phase portion formed by the two types of resin phases 22 and 23 has a spiral shape from the fiber outer peripheral surface 24 toward the center portion.
  • the resin phase 22 part is extended not in a smooth curved fish shape but in a wave shape.
  • each resin phase portion formed by the two types of resin phases 32 and 33 is spirally formed from the fiber outer peripheral surface 34 toward the center portion.
  • the resin phase portion 32 in particular is extended not in a smooth curved shape but in a bent shape.
  • each resin phase part formed by the three resin phases 42, 43, 44 is spirally formed from the fiber outer peripheral surface 45 toward the center part. It is formed in the resin phase part extended in this.
  • the two resin phases 42, 43 parts are composed of the same or the same kind of resin phase, and are spirally formed from different positions on the fiber outer peripheral surface 45.
  • the number of resin phase portions extending in a spiral shape can be three or more.
  • each resin phase portion formed by the three types of resin phases 52, 53, 54 is spirally wound from the fiber outer peripheral surface 55 toward the center portion. It is formed in the resin phase part extended in the shape.
  • the resin phases 52 and 53 parts are substantially the same spiral in such a form that the resin phase 52 parts are wrapped from both sides by the resin phase 53 parts. It extends in shape.
  • each resin phase portion formed of the three types of resin phases 62, 63, 64 spirals from the fiber outer peripheral surface 65 toward the center portion. It is formed in the resin phase part extended in the shape.
  • the resin phase 62 parts and the resin phase 63 parts are both extended in substantially the same spiral shape so as to extend in parallel. .
  • each resin phase portion formed by the three types of resin phases 72, 73, 74 is spirally wound from the fiber outer peripheral surface 75 toward the center portion. It is formed in the resin phase part extended in the shape.
  • the resin phases 72 and 73 parts are substantially the same spiral in such a form that the resin phase 72 parts are wrapped from both sides by the resin phase 73 parts.
  • the resin phases 74 and 73 are both extended in substantially the same spiral shape in such a form that the resin phase 74 parts are wrapped from both sides by the resin phase 73 parts.
  • each resin phase part can be extended in a spiral shape in a complicated form related to each other, and can be designed in virtually any form as long as the requirements specified in the present invention are satisfied. It is.
  • the composite fiber according to the present invention can be suitably applied as a hair material for constituting various brushes as described above.
  • a bristle material for a brush When applied to a bristle material for a brush, one end portion or both end portions in the longitudinal direction of the applied conjugate fiber are used as a hair tip portion.
  • the bristles of the brush hair material can be formed in various forms.
  • the cross-sectional shape of the composite fiber 1 is held as it is to the end in the fiber longitudinal direction, and the end in the fiber longitudinal direction is the bristles of the brush hair material.
  • the form used as it is as a part can be adopted (Embodiment 1).
  • the hair material 81 is constituted by using a composite fiber 84 composed of two types of resin phases 82 and 83 as the brush hair material 81, and in the fiber longitudinal direction of the composite fiber 84. At least one end portion (hair tip portion) can be formed in a tapered shape portion 85 (Embodiment 2).
  • tapered tapered portion 85 On the outer peripheral surface of the tapered tapered portion 85, two kinds of resin phases 82 and 83 appear in a spiral shape and exhibit excellent design, and the tapered tapered portion 85 is excellent for fine parts, for example, between teeth. Cleanliness is obtained.
  • a tapered taper portion 85 can be formed, for example, by sequentially dissolving a predetermined length portion of one end portion of the hair material 81 by alkali treatment or by mechanical polishing.
  • the resin phases 82 and 83 are made of, for example, the same kind of polyester resin having different color tone and / or friction coefficient, for example, color tone or / And polybutylene terephthalate (PBT) having different friction coefficients.
  • the brush bristle material 91 is dissolved by a chemical, for example, a resin phase 92 (for example, a resin phase made of nylon (registered trademark) Ny) that is not dissolved by an alkali and an alkali. It is comprised using the spiral cross-section composite fiber 94 which consists of two types of resin phases with the other resin phase 93 (For example, the resin phase which consists of polybutylene terephthalate (PBT)).
  • PBT polybutylene terephthalate
  • the resin phase 92 protrudes in the fiber longitudinal direction (protruding portion 95), and the illustrated form in which the spiral adjacent layer is formed in the groove 96 recessed in the fiber longitudinal direction can be configured (Embodiment 3).
  • two types of resin phases 102 and 103 are made of a resin phase extending in a spiral shape having different drug dissolution rates, for example, a resin having a slower alkali dissolution rate.
  • a phase 102 for example, a resin phase composed of polybutylene terephthalate (PBT)
  • another resin phase 103 for example, a resin phase composed of polyethylene terephthalate (PET) having a higher alkali dissolution rate.
  • the hair tip portion shown in the figure can be configured by leaving the slower spiral-shaped resin phase 102 portion as a drill shape portion 105 protruding into a tapered shape as a whole while dissolving so that the dissolution progresses toward the tip side (Embodiment) 4).
  • the brush bristle material configured as in Embodiments 1 to 4 above is used at least in part for the production of various brushes.
  • a method for flocking a brush bristle material on a brush component two types of methods are typically known, but these two types of methods are illustrated with reference to the case of use in a toothbrush as an example. This will be described with reference to FIG.
  • FIG. 4 (A) shows a toothbrush 113 in which the brush bristle material 111 is planted on the head part of the toothbrush constituting member 112.
  • a- There are two types of methods as shown in FIGS. 4B and 4C, which are enlarged sectional views taken along line a.
  • the brush bristle material 111 folded in half is inserted into the flock hole 114, and the brush bristle material 111 is fixed to the toothbrush component 112 with a fixing tool called a flat wire 115.
  • the completed toothbrush is usually called a flat wire toothbrush.
  • both end portions of the brush bristle material 111 prepared in advance serve as the bristles of the brush.
  • one end portion of the brush bristle material 111 is inserted into the through hole 116 of the head surface side member 112a of the toothbrush constituting member 112, and the end portion of the brush bristle material 111 inserted is inserted.
  • the completed toothbrush is usually called a flat wire toothbrush.
  • one end portion of the bristle material for brush 111 prepared in advance becomes a brush tip.
  • the bristle material for brushes according to the present invention is used for a flat wire toothbrush, the above-mentioned bristle portions are formed at both ends of the bristle material for brushes.
  • the hair tip as described above is formed at one end of the brush bristle material.
  • Table 1 summarizes typical characteristics of various types of embodiments as described above, particularly Embodiments 1 to 4, when the conjugate fiber according to the present invention is applied to a bristle material for a brush, particularly a bristle material for a toothbrush. It was.
  • a hair tip portion having two kinds of color tones and / or friction coefficients is obtained, and a unique tactile sensation on the outer peripheral surface of the hair tip and an appearance (designability) excellent in a stripe tone are obtained.
  • the second embodiment in addition to the excellent design properties in the first embodiment, it is possible to further improve the cleaning performance for fine parts such as the interdental space.
  • an excellent massage effect can be obtained, the cleaning property can be further improved on the tooth surface and the like, and a hair tip portion excellent in edge effect (scraping and capturing of dirt) can be obtained.
  • the hair tip portion is particularly excellent in the dirt scavenging and capturing effect as well as excellent cleaning performance between the teeth and the tooth surface.
  • ⁇ indicates that the characteristic is equal to or higher than that of the comparison target, and ⁇ indicates that it is significantly superior to the comparison target.
  • Examples of the present invention will be described below. Examples 1 to 5, Comparative Example 1 [Production of brush hair]
  • PBT polybutylene terephthalate
  • PET polyethylene terephthalate
  • nylon 610 nylon 610, manufactured by Toray Industries, Inc.
  • Similar nylon 610, manufactured by Toray Industries, Inc.
  • a thermoplastic polyamide elastomer Ny11-PTMG (polytetramethylene glycol), “Pebax” (registered trademark) 72R53) manufactured by Arkema, Inc.
  • each resin layer, the color tone, the narrowest part width of the resin layer part, and the number of resin layer parts were as shown in Table 2, and a composite fiber having a spiral shape in the fiber cross section was melt-spun.
  • a composite fiber having a spiral shape in the fiber cross section was melt-spun.
  • an a layer and a b layer were sequentially formed from a resin layer having a higher dissolution rate.
  • the number of resin layer parts was made into the maximum value of the number of resin layer parts which the virtual straight line passing through the center of a fiber cross section crosses.
  • the eluted fiber was cooled and solidified in water, it was stretched 4.5 times in 60 ° C warm water as the first step and 120 ° C in a dry atmosphere as the second step, and then relaxed heat set in a dry heat atmosphere To obtain a composite fiber.
  • the fibers were bundled in a straight line with a bundle diameter of 45 mm and packaged, and then cut into an arbitrary length.
  • the tip was tapered to form a taper shape.
  • both ends were dissolved by immersing the bundle of composite fibers in a heated caustic soda solution with both cut ends exposed.
  • the tapered shape was formed by mechanical polishing, the composite fiber cut by the method described later was planted in a toothbrush, and then the finishing process was performed in Z.
  • SWORD 116 manufactured by Zahoranski Co., Ltd. was used to taper the toothbrush tip.
  • Example 5 after planting the conjugate fiber cut by the method described later, the hair ends are cut so that the hair length becomes 13 mm, deburring is performed, and then the toothbrush is dry-heated at 60 ° C. Self-crimped by heating in a dryer for 2 hours. Table 2 shows the characteristics of the obtained brush hair material.
  • a PBT fiber was dipped in a caustic soda solution in the same manner as described above, and a bristle material for a brush having both ends tapered into a tapered shape was produced.
  • the brush bristle material obtained by the above method was set in a flat wire type flocking machine, a predetermined number (about 15 to 40) was picked, and folded into the flock hole of the toothbrush head along with the flat wire and driven. .
  • a predetermined number about 15 to 40
  • As the toothbrush head one having a flocked portion with a diameter of 1.5 mm and 8 rows and 4 columns was used.
  • Table 2 shows the bristle length (mm) and the number of flocks (lines / hole) of the toothbrushes produced in Examples and Comparative Examples.
  • the composite fiber according to the present invention can be applied to various fields, and is particularly suitable for brushes, especially for toothbrushes, makeup brushes, various cleaning brushes, and the like.

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  • General Chemical & Material Sciences (AREA)
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Abstract

La présente invention concerne une fibre composite formée d'au moins deux types de phase de résine. La fibre composite est caractérisée en ce que, au niveau d'une fibre à section transversale horizontale, chaque section de phase de résine formée à partir d'au moins deux types de phase de résine est formée pour s'étendre en spirale depuis une surface circonférentielle externe de fibres vers une section centrale. La fibre composite est également caractérisée en ce que les formes en spirale sont formées de sorte que le nombre de sections de résine traversées par au moins une ligne droite imaginaire qui passe par le centre de la section transversale horizontale de fibre est de 3 ou plus. Un matériau de poils de brosse qui utilise ladite fibre composite et qui est destiné à une brosse, et une brosse qui utilise ladite fibre composite. La présente invention concerne une fibre composite qui possède la nouvelle fonctionnalité et des propriétés de conception du mode de réalisation, chaque phase de résine section s'étend en spirale au niveau d'une section transversale horizontale et peut être développée dans divers domaines. En particulier, la présente invention permet de configurer un matériau de poils de brosse qui offre une sensation unique, présente des propriétés de conception, des propriétés de nettoyage, des performances d'essuyage de salissures, des performances de moussage, etc. appropriées pour des brosses à dents et d'autres brosses.
PCT/JP2017/002109 2016-01-25 2017-01-23 Fibre composite, matériau de poils de brosse utilisant une fibre composite et destiné à être utilisé dans une brosse, brosse utilisant une fibre composite WO2017130899A1 (fr)

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JP2017509048A JPWO2017130899A1 (ja) 2016-01-25 2017-01-23 複合繊維及びそれを用いたブラシ用毛材とブラシ

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JP2016011488 2016-01-25
JP2016-011488 2016-01-25

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08503145A (ja) * 1992-11-05 1996-04-09 ザ、ジレット、カンパニー 改良されたぶらし繊条
JPH08158144A (ja) * 1994-12-13 1996-06-18 Mitsubishi Rayon Co Ltd 海島繊維の紡糸口金装置
JP2001505967A (ja) * 1996-12-12 2001-05-08 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー 共押出しモノフィラメント
JP2006149419A (ja) * 2004-11-25 2006-06-15 Sunstar Inc 歯ブラシ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08503145A (ja) * 1992-11-05 1996-04-09 ザ、ジレット、カンパニー 改良されたぶらし繊条
JPH08158144A (ja) * 1994-12-13 1996-06-18 Mitsubishi Rayon Co Ltd 海島繊維の紡糸口金装置
JP2001505967A (ja) * 1996-12-12 2001-05-08 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー 共押出しモノフィラメント
JP2006149419A (ja) * 2004-11-25 2006-06-15 Sunstar Inc 歯ブラシ

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