WO2020004732A1 - Composition de polyester pour fibre thermo-adhésive, fibre composite thermo-adhésive mise en œuvre en faisant appel à celle-ci, et textile non tissé - Google Patents

Composition de polyester pour fibre thermo-adhésive, fibre composite thermo-adhésive mise en œuvre en faisant appel à celle-ci, et textile non tissé Download PDF

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Publication number
WO2020004732A1
WO2020004732A1 PCT/KR2018/014657 KR2018014657W WO2020004732A1 WO 2020004732 A1 WO2020004732 A1 WO 2020004732A1 KR 2018014657 W KR2018014657 W KR 2018014657W WO 2020004732 A1 WO2020004732 A1 WO 2020004732A1
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Prior art keywords
heat
compound represented
polyester composition
formula
mol
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English (en)
Korean (ko)
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최중현
김도현
이주현
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Toray Chemical Korea Inc
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Toray Chemical Korea Inc
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Priority to CN201880096897.9A priority Critical patent/CN112601774B/zh
Publication of WO2020004732A1 publication Critical patent/WO2020004732A1/fr
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/16—Dicarboxylic acids and dihydroxy compounds
    • C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
    • C08G63/181—Acids containing aromatic rings
    • C08G63/183—Terephthalic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D01D5/34—Core-skin structure; Spinnerette packs therefor
    • 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
    • D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/435—Polyesters
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H13/00—Other non-woven fabrics

Definitions

  • the present invention relates to a polyester composition for heat-adhesive fibers, and more particularly, to the fiber, excellent heat adhesiveness over a wide temperature range, minimizing changes over time even in summer storage conditions, storage stability is improved,
  • the present invention relates to a polyester composition for heat-adhesive fibers capable of expressing excellent touch and dyeing properties in an embodied product, and a heat-adhesive composite fiber and a nonwoven fabric embodied therefrom.
  • synthetic fibers have a high melting point and are rarely limited in use.
  • the fiber fabric itself when used as a wick or an adhesive that is inserted between the fabrics on a tape and press-bonded, the fiber fabric itself may deteriorate by heating, and special equipment such as high frequency sewing should be used. Since it is a hassle, it is desired to adhere easily by the usual simple heat press, without using such a special equipment.
  • U.S. Patent No. 4,129,675 introduces a low melting point polyester copolymerized using terephthalic acid (TPA) and isophthalic acid (IPA), and also Korean Patent No. 10-1216690
  • TPA terephthalic acid
  • IPA isophthalic acid
  • the patent discloses low melting polyester fibers embodied by isophthalic acid, diethylene glycol to improve adhesion.
  • the conventional low melting polyester fibers as described above may have a certain level of radioactivity and adhesion, but due to the ring structure of the rigid modifier, there is a problem of obtaining a non-woven fabric or fabric structure of a hard feeling after thermal bonding.
  • the present invention has been devised in view of the above, and has excellent spinning properties to fibers, excellent heat adhesiveness, and significantly improved touch and dyeing properties in applied articles, and at room temperature
  • the purpose is to provide a polyester composition for heat-adhesive fibers with minimal change over time and improved storage stability, and heat-adhesive composite fibers and nonwoven fabrics implemented through the same.
  • the present invention is a polycondensation of an acid component containing terephthalic acid, and an esterified compound reacted with ethylene glycol and a diol component including a compound represented by Formula 1 and a compound represented by Formula 2
  • a polyester composition for heat adhesive fibers comprising a copolyester.
  • the total content of the compound represented by Chemical Formula 1 and the compound represented by Chemical Formula 2 may be included in 30 to 45 mol% of the diol component.
  • the content (mol%) of the compound represented by Formula 1 in the diol component may be greater than the content (mol%) of the compound represented by Formula 2.
  • the diol component may be substantially free of diethylene glycol.
  • the acid component may further include isophthalic acid in an amount of 1 to 10 mol% based on the acid component.
  • the compound represented by the formula (1) of the diol component may be contained in 1 to 40 mol%
  • the compound represented by the formula (2) may be included in 1 to 20 mol%, more preferably in the formula 1 of the diol component
  • the compound is represented by 20 to 40 mol%
  • the compound represented by the formula (2) is 1 to 10 mol%, more preferably the compound represented by the formula (1) is 30 to 40 mol%
  • the compound represented by the formula (2) It may be included in 1 to 6 mol%.
  • the acid component may further include isophthalic acid, and the total content of the isophthalic acid, the compound represented by Chemical Formula 1, and the compound represented by Chemical Formula 2 in the copolyester may be included in an amount of 55 mol% or less.
  • the composition does not have a melting point, exhibits softening behavior
  • the glass transition temperature may be 60 ⁇ 75 °C, more preferably 65 ⁇ 72 °C.
  • composition may have an intrinsic viscosity of 0.500 ⁇ 0.800dl / g.
  • the present invention also provides a polyester chip comprising the polyester composition for heat-adhesive fibers according to the present invention.
  • the present invention also provides a heat-adhesive composite fiber comprising a core portion comprising a polyester-based component, and a sheath comprising a polyester composition for heat-adhesive fibers according to the present invention surrounding the core portion.
  • the present invention provides a non-woven fabric molded in a predetermined shape including the heat-adhesive composite fiber alone, or the heat-adhesive composite fiber and polyester-based fibers according to the present invention.
  • the non-woven fabric may be any one selected from the group consisting of automobile mattress, building interior material, bedding material, clothing insulation material and agricultural insulation material.
  • the present invention it is excellent in the spinning property to the fiber, and excellent heat adhesiveness can be expressed, and at the same time, a significantly improved feel and dyeability can be expressed in the applied article.
  • changes over time at room temperature is minimized, and storage stability may be improved.
  • the drying time can be significantly reduced, thereby significantly shortening the manufacturing time.
  • the article implemented using this also minimizes the change over time even in storage conditions (for example, 40 °C or more), such as summer, and excellent storage stability can prevent the deformation of the initial shape of the article or deformation during use.
  • FIG. 1 is a cross-sectional view of a composite fiber according to an embodiment of the present invention.
  • the polyester composition for heat-adhesive fibers according to the present invention is an esterified compound reacted with an acid component containing terephthalic acid, and a diol component comprising ethylene glycol, a compound represented by the following formula (1), and a compound represented by the following formula (2): Polycondensed copolyesters.
  • the acid component may include terephthalic acid, and may further include an aromatic polyvalent carboxylic acid having 6 to 14 carbon atoms other than terephthalic acid, or an aliphatic polyvalent carboxylic acid and / or sulfonic acid metal salt having 2 to 14 carbon atoms.
  • aromatic polyhydric carboxylic acid having 6 to 14 carbon atoms can be used without limitation those known as acid components used for the production of polyester, preferably any one selected from the group consisting of dimethyl terephthalate, isophthalic acid and dimethyl isophthalate It may be one or more, and more preferably isophthalic acid in terms of stability of reaction with terephthalic acid, ease of handling and economics.
  • aliphatic polyhydric carboxylic acid having 2 to 14 carbon atoms can be used without limitation those known as acid components used for the production of polyester, but non-limiting examples thereof, oxalic acid, malonic acid, succinic acid, glutaric acid Acid, adipic acid, suberic acid, citric acid, fimer acid, azelaline acid, sebacic acid, nonanoic acid, decanoic acid, dodecanoic acid, and hexanodecanoic acid.
  • the sulfonic acid metal salt may be sodium 3,5-dicarbomethoxybenzene sulfonate.
  • isophthalic acid in the case where other kinds of acid components are further included, and in this case, isophthalic acid is 1 to 10 moles based on the acid component. It is preferably included in%. If isophthalic acid is provided in less than 1 mol% based on the acid component, it may be difficult to express high thermal adhesion properties at additional low temperatures of interest, and if it is provided in excess of 10 mol%, the article to be realized is hard.
  • the soft touch is significantly lowered, and the glass transition temperature is excessively lowered, thereby lowering heat resistance.
  • the compound represented by the formula (1), the compound represented by the formula (2), and isophthalic acid is excessively increased in the copolyester, it acts as a main component capable of forming crystals at the desired temperature. It may be difficult to achieve the object of the invention, such as significantly lowering the thermal adhesive properties.
  • the diol component includes ethylene glycol, a compound represented by Chemical Formula 1, and a compound represented by Chemical Formula 2.
  • the compound represented by Chemical Formula 1 may reduce the crystallinity and glass transition temperature of the polyester composition to be produced to express excellent heat adhesion performance.
  • the compound represented by Formula 1 in the diol component may be included in 13 to 40 mol%, more preferably 20 to 40 mol%, even more preferably 30 to 40 mol%.
  • the radioactivity is excellent, but there is a fear that the adhesion temperature is high or the heat adhesion characteristics are lowered, and the use thereof may be limited.
  • the compound represented by Formula 1 is provided in excess of 40 mol%, there is a problem in that it is difficult to commercialize due to poor radioactivity, and rather there is a concern that the thermal adhesion characteristics are lowered due to increased crystallinity.
  • the compound represented by the formula (1) may be provided with 20 mol% or more, through which it is possible to further improve the thermal adhesive properties at low temperatures of the polyester composition together with the compound represented by the formula (2), There is an advantage that the drying time can be significantly shortened when chipping the polyester composition.
  • Compound represented by the formula (2) is to improve the heat adhesion properties of the polyester composition prepared with the compound represented by the formula (1) while preventing a significant decrease in the glass transition temperature of the compound represented by the formula (1) to 40 °C or more Despite the storage temperature, changes over time can be minimized and storage stability can be improved.
  • the compound represented by the formula (2) in relation to the heat adhesiveness is used in combination with the compound represented by the formula (1) to express the appropriate shrinkage characteristics to the heat-adhesive fiber using the polyester composition implemented and when heat-bonding due to such characteristics By further increasing the point adhesion, higher heat adhesive properties can be expressed.
  • the compound represented by Formula 2 in the diol component may be included in 1 to 20 mol%, more preferably 1 to 10 mol%, even more preferably 1 to 6 mol%.
  • the compound represented by the formula (2) is included in less than 1 mol% based on the diol component, it is difficult to improve the target heat resistance, and there is a concern that the storage stability is not good and the change over time may be very large.
  • the compound represented by the formula (2) is used in combination with the compound represented by the formula (1) above 20 mol% if included in the radioactivity is not good because it may be difficult to commercialize, in some cases even added isophthalic acid In this case, the crystallinity is sufficiently lowered and there is no further effect, and when the amount of added isophthalic acid is increased, the crystallinity is increased, which may significantly lower the excellent thermal adhesion property at the target temperature. There is a fear of failing to achieve the purpose. In addition, when implemented in a fibrous form, such shrinkage is significantly greater, there is a difficulty in processing.
  • the total content of the compound represented by Formula 1 and the compound represented by Formula 2 is preferably included in 30 to 45 mol% of the diol component, more preferably 33 to 41 mol% may be included. If the content is less than 30 mol%, the copolyester has increased crystallinity and high melting point or softening point is difficult to realize at low temperature. It may not be. In addition, if the compound represented by the formula (2) is included in excess of 45 mol% there is a concern that the polymerization reactivity and radioactivity is remarkably lowered, the crystallinity of the copolyester produced is rather increased and high heat adhesion at the desired temperature It can be difficult to express traits.
  • the compound represented by the formula (1) in the diol component may be included in a larger content (mol%) than the compound represented by the formula (2). If the compound represented by Formula 1 is included in an amount less than or equal to the compound represented by Formula 2, it is difficult to express the desired thermal adhesive properties, and may be limited in the use of the developed product as it must be adhered at a high temperature. Moreover, there exists a possibility that processing to the product developed by the expression of excessive shrinkage characteristic may be difficult. Furthermore, there may be a problem that the use for the intended use is difficult.
  • the diol component may further include other types of diol components in addition to the compound represented by Chemical Formula 1, the compound represented by Chemical Formula 2, and ethylene glycol.
  • the other kind of diol component may be a known diol component used for preparing polyester, but the present invention is not particularly limited thereto, and as a non-limiting example, an aliphatic diol component having 2 to 14 carbon atoms may be used.
  • Nona methylene glycol, decamethylene glycol, undecamethylene glycol, dodecamethylene glycol and tridecamethylene glycol may be any one or more selected from the group consisting of.
  • it is preferable not to further include the other type of diol component in order to have heat resistance at the same time as the desired level, it is preferable not to further include the other type of diol component, in particular, diethylene glycol may not be substantially included in the diol component.
  • the glass transition temperature may be drastically reduced, and thus, even when the compound having the compound represented by Formula 2 is provided, the desired level of heat resistance may not be achieved.
  • the fact that diethylene glycol is substantially not included in the diol component means that diethylene glycol is not intentionally added during the preparation of the copolyester, and esterification reaction of the acid component and the diol component, and poly / condensation reaction. This does not mean that it does not contain naturally occurring diethylene glycol.
  • the content of naturally occurring diethylene glycol included in the polyester composition may be less than 3% by weight of the total composition. If the content of naturally occurring diethylene glycol exceeds an appropriate level, the pack pressure is increased when spinning into fibers, and there is a problem that the radioactivity may be significantly reduced by causing frequent trimming.
  • the above-mentioned acid component and diol component may be prepared as copolyesters through esterification reaction and polycondensation using known synthetic conditions in the field of polyester synthesis. At this time, the acid component and the diol component may be added to react in a molar ratio of 1: 1.1 to 2.0, but is not limited thereto.
  • the acid component and the diol component are mixed at a time in the appropriate molar ratio as described above and then made into a copolyester through an esterification reaction and poly-condensation, or between the ethylene glycol and the compound represented by the formula (1) in the acid component and the diol component
  • a compound represented by Chemical Formula 2 may be added to produce a copolyester through esterification and polycondensation, and the present invention is not particularly limited thereto.
  • the esterification reaction may further include a catalyst.
  • the catalyst may be used a catalyst commonly used in the preparation of polyester, and as a non-limiting example, it may be prepared under a metal acetate catalyst.
  • the esterification reaction may be preferably carried out at a temperature of 200 ⁇ 270 °C and pressure of 1100 ⁇ 1350 Torr (Torr). If the above conditions are not satisfied, there may be a problem in that an esterification time may be long or a problem may occur in which an esterification compound suitable for a polycondensation reaction cannot be formed due to a decrease in reactivity.
  • the polycondensation reaction may be carried out at a temperature of 250 ⁇ 300 °C and 0.3 ⁇ 1.0 Torr (Torr), and if the conditions are not satisfied, there may be problems such as delayed reaction time, lowering the degree of polymerization, causing thermal decomposition. .
  • the polycondensation reaction may further include a catalyst.
  • the catalyst may use an antimony compound or a phosphorus compound to prevent discoloration of color through pyrolysis at high temperature in order to secure proper reactivity and lower production cost.
  • the antimony compounds include antimony oxides such as antimony trioxide, antimony tetraoxide, antimony pentoxide, halogenated antimony such as antimony trisulfide, antimony trifluoride, antimony trichloride, antimony triacetate, antimony benzoate, antimony tristearate, and the like. Can be used.
  • antimony oxides such as antimony trioxide, antimony tetraoxide, antimony pentoxide, halogenated antimony such as antimony trisulfide, antimony trifluoride, antimony trichloride, antimony triacetate, antimony benzoate, antimony tristearate, and the like. Can be used.
  • the amount of antimony compound used as the catalyst is preferably 100 to 600 ppm based on the total weight of the polymer obtained after the polymerization.
  • the phosphorus compound it is preferable to use phosphoric acid such as phosphoric acid, monomethyl phosphoric acid trimethyl phosphoric acid, tributyl phosphoric acid and derivatives thereof, and among these, trimethyl phosphoric acid or triethyl phosphoric acid or triphenyl phosphoric acid is preferable because of its excellent effect.
  • the amount of the phosphorus compound is preferably 100 to 500ppm based on the total weight of the polymer obtained after the polymerization.
  • Polyester composition according to the present invention prepared by the above method may be intrinsic viscosity of 0.5 ⁇ 0.8dl / g. If the intrinsic viscosity is less than 0.5dl / g there may be a problem in the cross-sectional formation, if the intrinsic viscosity exceeds 0.8dl / g may be a problem in the radioactivity due to the high pack (Pack) pressure.
  • Pack high pack
  • the polyester composition has no melting point, may have a thermal property showing a softening behavior, preferably a softening point may be 90 ⁇ 110 °C and may be more advantageous to achieve the object of the present invention.
  • the polyester composition may have a glass transition temperature of 60 ⁇ 75 °C.
  • polyester chips, fibers, or articles implemented through the polyester composition changes over time even at temperatures above 40 °C, such as summer, and between chips or fibers
  • chip-to-chip bonding occurs, there is a fear that the radiation failure.
  • the shrinkage characteristics are excessively expressed after being implemented with fibers, there is a concern that the bonding characteristics may be lowered.
  • due to the limitation of heat treatment required for drying after chip formation, spinning after fiber, and the like there may be a problem of prolonging the processing time or performing the corresponding process smoothly.
  • the glass transition temperature exceeds 75 ° C., there is a fear that the thermal bonding properties are significantly lowered, and there is a possibility that the development of the application may be limited as the performing temperature of the bonding process is limited to a high temperature.
  • polyester composition according to an embodiment of the present invention described above may be implemented as a polyester chip, the method of manufacturing the polyester chip, the specification of the chip may be in accordance with known manufacturing methods and specifications in the art The present invention will not be described in detail.
  • the present invention includes a core portion 21 including a polyester-based component as shown in Figure 1, and a second portion comprising a polyester composition for heat-adhesive fibers according to the present invention surrounding the core portion 21 ( To implement a heat-adhesive composite fiber comprising 20).
  • the polyester-based component forming the core portion may be a known polyester having a high heat resistance and mechanical strength compared to the first portion, and may be, for example, polyethylene terephthalate, polybutylene terephthalate, polypropylene terephthalate, and the like. It is not.
  • the core portion and the second portion may be a composite spinning in a weight ratio of 8: 2 to 2: 8, but is not limited thereto, and may be radiated by appropriately adjusting the ratio according to the purpose.
  • the process of spinning the composite fibers in spinning conditions, spinning equipment and the composite fibers after spinning, stretching, etc. can be carried out through known conditions, apparatuses and processes in the art or by appropriately modifying the present invention. It does not specifically limit.
  • the composite fiber may be spun at a spinning temperature of 270 ⁇ 290 °C, it may be stretched 2.5 to 4.0 times after spinning.
  • the fineness of the composite fiber is 1 to 15 denier, the fiber length may be 1 to 100mm as an example.
  • the present invention includes a non-woven fabric including the above-mentioned heat-adhesive composite fiber.
  • the nonwoven fabric may be implemented by including heat-adhesive composite fibers alone or the heat-adhesive composite fibers and polyester-based fibers.
  • the heat-adhesive composite fiber and the polyester-based fiber may be short fibers, and the nonwoven fabric may be manufactured by heat treatment after each of the short fibers is mixed and opened.
  • the heat-adhesive composite fiber and polyester-based fiber may be mixed in a ratio of 3: 7 to 1: 9, but is not limited thereto and may be appropriately changed in consideration of use. .
  • the heat treatment may be 100 ⁇ 180 °C, more preferably 120 ⁇ 180 °C, it can express more improved adhesive properties through this.
  • the porous structure may be any one selected from the group consisting of, for example, an automobile mattress, a building interior material, a bedding material, a clothing insulation material, and an agricultural insulation material, but is not limited thereto.
  • the formed ester reactant was transferred to a polycondensation reactor, and 300 ppm of antimony trioxide as a polycondensation catalyst and 150 ppm of phosphoric acid as a heat stabilizer were added thereto, and the resultant polycondensation reaction was carried out by gradually increasing the temperature to 285 ° C. while gradually reducing the final pressure to 0.5 torr.
  • the polyester composition was prepared by a polyester chip having a width, length, and height of 2 mm x 4 mm x 3 mm, respectively, by a conventional method.
  • the polyester chip embodied with the polyester composition, PET After the chips were put into the hopper and melted, they were put into the vinegar spinnerets, respectively, and then spun at a core speed and a superstructure at a rate of 1000mpm at 275 ° C. at a 5: 5 weight ratio, stretched 3.0 times, and the fiber length was 51 mm.
  • Example 2 Prepared and carried out in the same manner as in Example 1, by changing the composition ratio of the monomer for preparing the copolyester as shown in Table 1, Table 2 or Table 3 and the polyester chip as shown in Table 1, Table 2 or Table 3 and A heart sheath composite fiber was prepared using the same.
  • the glass transition temperature and melting point were measured using a differential calorimeter and the analysis condition was a temperature increase rate of 20 ° C./min.
  • the moisture content was measured at 55 °C, 4 hours intervals in a vacuum dryer, the time was measured as a moisture content of 100ppm or less, the time was expressed as a drying time.
  • Spinning workability occurs for drips (means lumps formed by partial fusion of fiber strands passing through the detention or irregularly fused strands after trimming) with respect to cardiac-type composite fibers spun in the same amount by Examples and Comparative Examples.
  • the value was counted through the drip detector, and the number of drips generated in the remaining examples and the comparative example was expressed as a relative percentage based on the drip occurrence value in Example 1 as 100.
  • a non-woven fabric manufactured by heat treatment at a temperature of 140 ° C. was subjected to a sensory test by a group of 10 industry experts. 6-7 were good ( ⁇ ), 5-4 were normal ( ⁇ ), and less than 4 were classified as bad ( ⁇ ).
  • Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Acid component (mol%) TPA 100 100 100 100 100 100 100 100 IPA 0 0 0 0 0 0 total 100 100 100 100 100 100 100 100 100 100 100 100 Diol component (mol%) EG 59 56 53.5 50 66 69.5 71.5 Compound of Formula 1 38 39 40 47 32.8 27.5 25.5 Compound of Formula 2 3 5 6.5 3 1.2 3 3 DEG 0 0 0 0 0 0 total 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100
  • Example 8 Example 9 Example 10 Example 11 Example 12 Acid component (mol%) TPA 100 100 100 100 100 IPA 0 0 0 0 0 total 100 100 100 100 0 Diol component (mol%) EG 69.5 69.5 67 72 66 Compound of Formula 1 21 18.5 21 18.5 33.5 Compound of Formula 2 9.5 12 12 9.5 0.5 DEG 0 0 0 0 0 total 100 100 100 100 100 100 Formula 1 + Formula 2 30.5 30.5 33 28 34 Polyester Chip IV 0.643 0.640 0.642 0.643 0.638 Melting Point (°C) none none none none none none none none none none none 187 none Tg (°C) 72 73 72 73 67 Drying time (Hr) 24 20 24 20 48 Composite fiber Spinning Workability (%) 86 84 98 81 108 Short fiber storage stability ⁇ ⁇ ⁇ ⁇ ⁇ Dyeing rate (%) 13 11 13 11 15 Non-woven 120 °C Adhesive Strength (N) 72 46 60 Unbonded 43 140 °C Adhesive Strength (
  • Comparative Examples are significantly longer drying time (Comparative Examples 1 to 3), poor spinning workability (Comparative Example 2, Comparative Example 3), or short fiber storage stability is very poor (Comparative Example 2, Comparative Example 3 ), It can be seen that the shape is deformed (comparative example 4) in the evaluation of the adhesive strength by temperature, but it can be confirmed that all the physical properties cannot be satisfied at the same time, but the examples can confirm that all the physical properties are expressed at excellent levels. .
  • Example 15 also contains a greater amount of the compound represented by the formula (2) than the compound represented by the formula (1) compared to the other examples to change the shape of the temperature-specific adhesive strength to achieve the desired physical properties It can be confirmed that it is not suitable for.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Multicomponent Fibers (AREA)
  • Artificial Filaments (AREA)

Abstract

La présente invention concerne une composition de polyester pour une fibre thermo-adhésive et, plus particulièrement : une composition de polyester pour une fibre thermo-adhésive, qui présente une excellente propriété de filage et une excellente adhérence thermique par rapport à une fibre, vieillit le moins possible et est stockée de manière stable à température ambiante, et peut procurer une sensation très agréable lorsqu'elle est mise en œuvre dans un produit ; et une fibre composite thermo-adhésive et une structure poreuse qui sont mises en œuvre en faisant appel à celle-ci.
PCT/KR2018/014657 2018-06-27 2018-11-27 Composition de polyester pour fibre thermo-adhésive, fibre composite thermo-adhésive mise en œuvre en faisant appel à celle-ci, et textile non tissé Ceased WO2020004732A1 (fr)

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CN201880096897.9A CN112601774B (zh) 2018-06-27 2018-11-27 用于热粘合性纤维的聚酯组合物、由此实现的热粘合性复合纤维及无纺布

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KR10-2018-0074192 2018-06-27
KR1020180074192A KR102061805B1 (ko) 2018-06-27 2018-06-27 열접착성 섬유용 폴리에스테르 조성물, 이를 통해 구현된 열접착성 복합섬유및 부직포

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KR102172280B1 (ko) * 2019-05-13 2020-10-30 도레이첨단소재 주식회사 열접착성 섬유용 폴리에스테르 조성물, 이를 통해 구현된 열접착성 복합섬유 및 부직포
KR102306736B1 (ko) 2020-03-31 2021-09-29 코오롱인더스트리 주식회사 스펀본드 부직포 및 이를 이용한 타일카페트
KR102787209B1 (ko) 2022-08-23 2025-03-26 도레이첨단소재 주식회사 항균성 및 소프트성이 우수한 열접착형 복합섬유 및 이의 제조방법
KR102898651B1 (ko) * 2024-04-02 2025-12-09 도레이첨단소재 주식회사 고내열성 멜트블로운 부직포 및 이를 포함하는 자동차용 흡차음재

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CN112601774A (zh) 2021-04-02
KR102061805B1 (ko) 2020-01-03
TW202000724A (zh) 2020-01-01
CN112601774B (zh) 2023-08-01

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