TW200825225A - Split type conjugate long fiber, nonwoven fabric consisted of split type conjugate long fiber, and split fiber nonwoven fabric - Google Patents

Abstract

The object of this invention is to improve the split properties of split type conjugate fiber consisted of polypropylene polymer and polyethylene polymer. A split type conjugate fiber formed by connecting a polypropylene polymer of loading 2160g, MTR at 230 DEG C no less than 40g/10min and high pressure process low density poly-ethylene is provided. Also a nonwoven fabric consisted of the split type conjugate fiber, split fiber nonwoven fabric formed by splitting the nonwoven fabric and fabricating method thereof are provided.

Description

200825225 IX. Description of invention: [Technical field of hair: households!] ΐΐ, ΐΐ: Wei Shijian sanitary materials, filter media, and cut-type composite long-fibers. The polymer is composed of split fibers with excellent splitting properties. ή 合 合 长 长 以及 以及 以及 以及 以及 以及 以及 以及 以及 以及 以及 以及 以及 以及 以及 以及 以及 以及 以及 以及 以及 以及 以及 以及 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前 先前One of Tian Weiwei’s methods, using a combination of polymers with Τ古,1· 矛里成/刀, into the W Bufa· will use more physical physics, ,,..., knives and sub-type composite fibers, Re-dividing _ complex: = resin shrinkage of chemicals, etc., will be obtained by this method. Moreover, the _dimensional' is obtained by the ultrafine fiber, and the g|!r/j type composite fiber is used to make (4) the polymer, using the polyamic acid and the polyglycolic polystyrene and polyolefin, and the age of the poly The split type composite fiber composed of polyamine and a hydrocarbon compound is inferior to the polyester and the polypyrene; the splitting property is improved, and various improvements are made by the splitting of the ethylene-filament compound. Different types of polypropylene with different fibers have been proposed to divide the flow rate of the 峨 峨 ) 比 ' ' ' ' ' 、 c c c c c c c c c c c c c c c c c c c c c c c c c c c c c (Patent Document 1: Japanese Patent Laid-Open No. 2000-328348, the split-type composite jet 200825225 mouth portion having a hollow portion at the center portion of the cross section is a poly-==: row r having a molecular weight distribution of at least 5, and is made larger than (four) Knife #禝& fiber method (Patent Document No. 2002-220740). . . . 曰 扣 是 是 是 是 是 是 是 是 是 是 是 ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' The composite long fiber is subjected to tension by applying a tension to the long fiber by the cooling fluid, and the woven fabric is made into a fine fiber. A split-type composite long-fiber structure which is excellent in the singularity of the present invention. The object of the present invention is to improve the singularity of a propylene-based compound, a vinyl-based polymer, and a sigma-type 1 composite fiber, and various studies have been carried out. It is possible to improve the segmentation by using the load fan g, the pit of the pit 2, and the (4) propylene polymer as (a) the propylene polymer, the = method, and the low-density polyethylene as the ethylene-based polymer. The cage provides a mfr greater than the load 2i6〇g, 23〇c>c, i, /1G (4) (A)-based polymer and (8) high-pressure method low-density acquisition / j, and (A) a split type composite long fiber formed by interconnecting a propylene-based polymer portion and (B) a high-pressure method and a low-density portion; the nonwoven fabric which is divided into fibers and the branching-J fiber non-woven fabric formed by dividing the nonwoven fabric. The invention also provides a non-woven fabric composed of a split type composite long fiber. The method is characterized in that the load of 216 吆, 230. 0, 200825225 25737pif fluid is applied to the long fiber to make the body cut into a file. - After the crystallization of the ancestry by the alignment, capture and make (A)_ (4) The part of the product is made of non-woven fabric ^. It is consumed on the listening band;

The split type long fiber of the invention has excellent segmentation property; the obtained composition is uncomfortable, and the composition is light, and the other objects, features and advantages can be more obvious. According to the closed type, the embodiment is described in detail. [Embodiment] Polymer The (A) propylene-based polymer of the split-type composite long fiber of the present invention has a melt flow rate (four) (four) (10), and is said to be loaded. 2l6〇g 'Temperature: (10). . } is greater than or equal to 4 〇 g / 1 〇 minutes, preferably 50 to 500 g / H) minutes, more preferably 55 to 1 〇〇 g / 1 〇 minutes. When the (A) propylene-based polymer having an MFR of less than 40 g/10 min is used, the obtained split type long fibers have poor splittability. The ratio of the weight average molecular weight (mw) to the number average molecular weight (?η) of the poly(A) propylene-based polymer Mw/Mn is usually from 1.5 to less than 5%, and the spinning property is good and the fiber strength is particularly high. In view of excellent composite fibers, Mw/Mn is more preferably 1.5 to 3.5. In the present invention, the term "good spinning 200825225 ^ ^ t if" means that no filament breakage occurs during the ejection from the spinning nozzle and during the stretching, and fusion of the filaments does not occur. When Mw/Mn is 5.0 or more Due to the high molecular weight of the two components, the yarn breaks easily; when Mw/Mn is less than or equal to L5, the crystallization in the stretching is slow, and there is a problem that filament fusion is likely to occur. In the present invention, MW and _ The measurement can be carried out by Gpc (gel permeation chromatography) according to a known method. The (A) propylene-based polymer according to the present invention may be exemplified by a single polymer of propylene; or propylene and a small amount of ethylene. a copolymer of 1-butene, ihexene, =decyl-1-pentene, or a olefin having a carbon number of 2 to 1 Å such as _ octene or linalene. The above (4) acryl The polymer is preferably a melting point (a polymer having a temperature of 155 ° C or more, more preferably a polymer having a melting point of 16 Å or more.) In the (A) propylene-based polymer according to the present invention, it is possible to Within the scope of the object of the present invention, a commonly used oxidation resistant weathering stabilizer is added and resistant. Additives such as stabilizers, antistatic agents, anti-clouding agents, anti-blocking lubricants, nucleating agents, pigments, or other polymers. Density polyethylene (B) High-pressure method of the split type composite long fiber of the present invention is called The high-cost ethylene is obtained by radical polymerization of ethylene, which is a single polymer of ethylene or a copolymer of ethylene and less. The above (9) high-pressure process low-density polyethylene, which is different from 'lean (LLDPE)' That is, using a Ziegler catalyst to catalyze the production of an ethylene-heart olefin copolymer obtained by copolymerizing ethylene and an α-bond having a carbon number of 3 to 1 Å; and different from the high density of 200825225. Polyethylene (HDPE, density 〇.95〇~〇.97〇g/cm3), ie, using Ziegler catalyst (low pressure 10~ withdraw g/cm2) or Phillips catalyst cadaver or standard catalyst (cap 3.~脉—2), a polymer obtained by self-reduction of B-rows. ............ -° (B) High-pressure method low-density polyethylene sulphide rate _, ASTM D_12 Then, it is recommended to g, and the temperature is not particularly limited as long as it can be melt-spun, and is usually from 0 to iOOOg/10 minutes, preferably 1 0 to 500 g/10 min, more preferably in the range of 2 〇 to 100 g/10 min. # (b) The melting point (Tm) of the high pressure method low density polyethylene according to the present invention, preferably % to 11 (^, more Preferably, it is 95 to 11 (a circumference). The density is preferably 0.900 to a935 g/cm 3 , more preferably 〇.925 g/cm, and a range. ^ · ^ (B) high pressure method low density polyethylene according to the present invention It may be added as needed within the scope of not impairing the object of the present invention: an oxidizing agent, a weathering stabilizer, a light stabilizer, an antistatic agent, an anti-clouding agent, an antimony agent, a nucleating agent, a pigment, a pigment, or the like. Other aggregations: The character rrt split type composite long fiber is a split type composite length _ using the above (a) _ 聚聚口^刀#(Β) high pressure method low density polyethylene. As a (Α) propylene-based polymer, a load of 216 〇 g and 23 使用 was used. When (a) a propylene-based polymer of 〇I at 4〇g/i〇 minutes, the score of the obtained split type 200825225 = long fiber 2 is difficult; when the line-like fitness is replaced by polyethylene (B) = [method] In the case of low-density polyethylene, the score of the composite long-fiber composite is also poor. • ... · ... ·---....... Person: The shape (section) of the type of hard-bonded long fibers, as long as it is (A) propylene-based polymer. The bismuth and (B) high-pressure method low-density polyethylene parts may be connected to each other, and there are various shapes such as [Fig. 1A to FIG. 1E], but from the viewpoint of ensuring good _ sex, Yuxian A curve consisting of a set of points at equal distances from the center, the so-called positive _ (10) (8) and (10). The split type composite long fiber of the present invention is formed by connecting the propylene-based Uchida knives and the ethylene-based fK compound portions having the same alignment pattern and having an orientation degree of at least _, preferably G 82 or more. Here, the "pattern" indicates that the structure in the molecular chain with respect to the fiber axis is required to be selectively biased toward a certain direction as a whole, for example, the orientation of the two axes is high, indicating that the lattice is _ It is selectively biased toward the fiber axis direction and has a high ratio. The alignment pattern is the same, and the higher the degree of alignment, the crystallization of the two components is preferably performed simultaneously or excellently. In the split type composite long fiber of the present invention, it is preferred that the main alignment pattern of the vinyl polymer has an alignment degree of at least 〇·7〇, more preferably equal to or greater than the average. The degree of alignment of the present invention was evaluated as follows: a wide-angle X-ray diffraction apparatus (rINT255 制 manufactured by RIGAC Co., Ltd., attached device: fiber sample stage '·, ?! line source: CuKa; round out: 40 kv, 37 〇); The counter can be arranged in the direction of the fiber axis and fixed on the sample holder to measure the crystal surface peak [polypropylene polymer: (11〇) surface; polyethylene polymer: 200825225 / ui yti (200) surface] azimuth distribution curve obtained by the azimuthal distribution intensity (X-ray interference®) towel, Xiangxia type price towel _ calculation __ direction of the right is less than 0.8, it is judged to be very directional Low, 1 alignment. Orientation (F), (r_a)/180. (α is a half-price of the peak in the azimuthal distribution curve). The fineness of the split type composite long fiber of the present invention is usually preferably smaller than

ί, 2 Danny. When the fineness is 6 denier or less, the fineness after the fiber-cutting treatment can be made fine, and the wiping property and the flexibility are excellent, which is preferable. Further, the division (four) of the (Α) propylene polymer portion and the ethylene polymer portion forming the split type composite long fiber may be not limited, and is usually 4 to 48 divisions, and is usually: Optional: Two to 24 split ranges. The fineness of the split fiber bundle obtained by the non-woven fabric of the split composite fiber structure can be made 0.001 to 2.00 Danny, preferably by dividing the split type composite long fiber _ fineness and the t fiber 't. It is a range of 0·001~〇·5 Danny. The non-woven fabric composed of the crucible, the non-woven fabric composed of the split type composite long fibers of the present invention is composed of the above-mentioned eight-type composite long fibers, and usually has a basis weight of 2 to 2 g/m, preferably 忉~l5〇g/ The range of m2. The non-woven fabric of the present invention is subjected to thermal fusion of 4 long fibers by embossing roll (emb〇SSr〇11) or ultrasonic fusion as needed. The area (embossed surface yield) during heat fusion can be appropriately selected depending on the use, and the area is preferably 5 to 3 %.贝200825225 The division of the 曰 曰 曰 曰 曰 曰 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长 长The range formed by the cutting of the material. The hanging is 0~20〇g/m2, preferably 10~150g/ni2.

The fineness of the split fiber in which the eighth embodiment of the present invention is usually 0·001 to 2 〇 is a cut fiber nonwoven fabric, and is preferably in the range of 0. 001 to 0·5 denier. The stress is applied by a nonwoven fabric composed of various known fibers and long fibers, and the so-called high-pressure water can be used, for example, by spraying a liquid such as water under high pressure, by a male jet method, or by using a gear stretching machine. The non-woven fabric flow composed of the split type composite long fibers of the high-pressure water stream i 1 is divided into a lining, and it is preferable to form air between the monofilaments, for example, at a high pressure liquid of :. Specifically, the liquid M is passed through the nozzle hole, and the high pressure pump is used. The aperture of the nozzle hole is usually 0.05~22~k selected as the range of ο.1~0.5mm. The pressure k of the high pressure liquid stream is in the range of ~4 MPa, preferably 50 to 300 MPa. In view of the ease of handling, water or warm water is preferably a pure water having a resistivity value measured by a water quality measuring device using 2 or more, preferably 10 Μ Ω·επι, more preferably 15 MjQ.cni. • The distance between the nozzle hole and the non-woven fabric is preferably 1 to 15 (10). If the distance exceeds 15 cm, the energy imparted to the nonwoven fabric by the liquid is lowered, and the effect of cutting or interlacing 12 200825225 tends to impair the texture of the non-woven fabric. If the distance is less than 1cm, chaos is 0. Generally, when the nozzle hole of the high-pressure liquid flow is arranged in the direction of the non-woven fabric by six ==, the V-direction is arranged in a single direction, and the CSS is cut and tightly combined, and the jet can be sprayed. The holes are arranged in two columns, preferably three columns or more. In order to make the texture uniform, the pressure of the south pressure liquid flow is lowered on the front side and raised on the rear side. Further, the appearance of the divided fiber nonwoven fabric according to the present invention: the so-called pattern ' can be changed by the pattern of the screen used for the treatment of appropriately selecting the high-pressure liquid stream. The S-body flow and the woven fabric are used to carry out the division and the fiber is buried. Thereafter, the excess water is removed by mechanical pressing, and then dried and heat-treated to form a final product. It is also possible to select the heat treatment temperature time so as not only to remove moisture but also to moderately (4) and promote crystallization. The heat treatment may be a dry heat treatment or a wet heat treatment.

In the non-woven fabric comprising the split type composite long fiber and the split plastic composite long fiber of the present invention, the above (A) propylene-based polymer and (8) high-rub weight-filament polyethylene can be used, and the known method is used. It is preferable to obtain a spun-bond from the viewpoint of obtaining a fiber having excellent productivity and excellent bottle size. The method for producing a split conjugated nonwoven fabric of the present invention is made by taking a spun bond as an example. The above (A) _ silky wonderful (B) high house method low ritual poly 晞 分 分 group turn the scales to mix, will melt each 13

200825225 23 Ιό /piT 合 纤维 却 赵 赵 赵 Μ Μ Μ 纺 纺 纺 纺 纺 ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( Next, according to the need to bribe embossing processing. The use of hot embossing and tearing of the melted mouth is determined by the fact that the embossed area ratio of the compacted light is usually 5 to 30%. Sound demon = U spinning good in the appropriate range of forming temperature 2:, money, cooling gas temperature, so that (eight) propylene polymer part, _ 线 part and (Β 法 健 健 in the above range Crystallization is carried out. Manufacture of π-knife woven fabrics The method of manufacturing the woven fabrics of the woven fabrics is a non-woven fabric composed of the above-mentioned soil U fibers, and various known two-component (4) acryl-based polymerizations described above are used. Embodiments and (8) High Pressure Process Low Density Polyethylene Examples Hereinafter, the present invention will be more specifically made according to the examples, and the present invention is not limited to these examples. It should be noted that the physical properties in the examples and comparative examples are as follows. The measurement is carried out in the following manner: (1) Division rate 14 200825225 25737pif S-35GG (four) made of the obtained split fiber non-woven fabric, scanning sentence: ^ using the % submicroscope [(share) Hitachi production of the cross-sectional image view _ $= Observe the test... The cut rate is !00%·, when the number of divisions of the domain dimension is 1, when the score is equal to 2, the number of divisions of the fractal dimension using the following formula is greater than Its = is the score;; the cut number of the cut #连, _ sub-fiber section Among them, the so-called total depot 彳 彳 日 纤 纤 纤 纤 纤 纤 纤 纤 纤 纤 ^ 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 ; ; ; In the case of the Weiwei section, the observed fiber (2) denier D', and the drunkenness calculated by the above formula is 62.5%. The S_35_^' piece made by Lisho, and then 'with an electron microscope [()) 曰, from The obtained cross-section mm!: 'Scanning electron microscope' was observed for the test product, and 30 undivided filaments were selected from the flats, and the cross-section of the cross-section was calculated, and the split ratio was used to determine the fineness of the split fiber = 1 fiber. Silk denier / (total number of divisions X division 15 200825225 25737pif rate / 100) (3) Hand feeling by 10 evaluators to carry out salty squatting # Result. W A' buckled to the following benchmarks to indicate Detective ◎ 〇 Δ 10 people 10 people feel good feel; = 9 to 7 people feel good; 6 to 3 people in the monk feel good; (4) Two people below - 5 ^JIS Z87〇3m^i#^ =): horizontal _ on the second stage, _ touch time, read with the ruler ^ - with the inclined surface to try __ length (stuffed) said = from == ^ = inside the face into the 彳, turn _ and horizontal (cd) each The " lower stiffness, the more non-woven determines softness. In general, the values of the stiffness of the preparation = (MD) and the transverse direction (CD) are less than 25 faces; the purpose varies, (5) tensile strength 16 200825225 ^ /pif 尸准 S^19G6 (6.12.1A Method), in the strange greenhouse of ns Z87G3 (the 3rd evil in the test site), the temperature is t, the humidity is 65±2%, as the tensile strength of the machine direction (MD), take 3 Λ r ... I defeat ( MD) is 25cm, and the birch (CD) is 2.5cm non-woven test piece as .Am, the private ', degree, take _ direction (_.5 coffee, birch: fc=(:): stretch right ~ Au ^ ^ 杈 (CD) is 25cm non-woven two H disc 2GGmm, 2 (K) mm / ^ _

Under the cow, a tensile test was performed on a miscellaneous tester (In_n; apan CGmpany Limited, =0=4 type), and the tensile load of the three test pieces was measured, and the average value of the maximum values was used as the tensile strength. . (6) Air permeability According to JIS L1_ (breathing method A), a test piece of 2〇^lOOxHKhnm was taken along the length of the sample, and a Frazier type tester was used (Dahong Science and Precision Co., Ltd. In order to determine the average value of the results as the air permeability. The lower the gas permeability, the higher the splitting property, and therefore it can be judged that the ultrafine fibers are uniformly present in the entire nonwoven fabric. Example 1 (A) A propylene-based polymer (density 〇.91〇g/cm3, melting point 157°C, Mw/Mn2.75) having an MFR of 2160 g and 230 C of 60 g/10 min was used as (A) The propylene-based polymer portion was loaded with 216 hectares and 19 Torr. MMFR is 20g/10 minutes (8) high pressure method low density polyethylene [density 〇.919g/cm3] as (B) high pressure method low density polyethylene part, using separate extruders respectively at the forming temperature 21〇t : Melting down. Using a spinneret for split type composite fiber spinning with a total cut length of 16 in the cross-sectional shape of 17 200825225 25737pif as shown in Fig. i(a), the (A) propylene-based polymer portion and (B) the high-pressure method are low. The density-type polyethylene portion was divided into 50/50 split-type composite long fibers, which were spun at a wire speed of 2,500 m/min by a so-called spunbonding method and deposited on a take-up belt. Next, (4) the fiber is divided, using the aperture (4): two, the distance from the nozzle to the non-woven fabric is 10cm, the linear velocity is 5m/min, the water pressure in the first segment is 60kgf/cm2, and the water pressure in the second segment is 1〇〇. Kgf/cm2, the third stage • The water pressure l〇0kSf/cm2, the water pressure of the fourth stage is 100kgf/cm2, and the surface and inner surface of the non-woven fabric are carried out four times in total, and eight times of water jet processing is performed to produce a unit area. The split fiber of 50 g/m is not woven. The division ratio, the fineness, the stiffness, and the tensile strength of the obtained nonwoven fabric were measured and evaluated. The results are shown in Table 1. _Example 2 Using a load of 2160g, 230C MFR of 60g/10 minutes (A) • Propylene polymer [density 0·910§^^, melting point urc, Mw/Mn2·75] as (A) propylene The polymer portion, using a load of 21.6 g, (10). (10) The side is (B) the low-pressure polyethylene part of the pressure method, which is separately extruded using a separate temperature. Use a total score of 16 in the face shoe as shown in Fig. 1(a). _ Composite fiber spinning with a spinneret ',) propylene polymer portion and (8) high pressure method low density polyethylene portion = weight The split type composite long fiber having a ratio of 50/50 is subjected to a so-called spinning method at a wire speed of 25 G〇m/min, and is deposited on a hardband. Next 18 200825225 2^/3/pit To 'for fiber splitting, use a nozzle with an aperture of Φ 0·1 lmm so that the distance from the nozzle to the non-woven fabric is l〇cm, at a line speed of 5 m/min, at the '1' The water pressure of the section is 6〇kgf/cm2, the water pressure of the second stage is l〇〇kgf/cm2, the water pressure of the third stage is 1 (10) kgf/cm2, and the water pressure of the fourth stage is 1 (10) kgf/cm2, and the surface of the non-woven fabric is Each of the inner surfaces was subjected to water jet processing four times in total, and a divided fiber nonwoven fabric having a basis weight of 50 g/m 2 was produced. The division ratio, the fineness, the stiffness, and the tensile strength of the obtained nonwoven fabric were measured and evaluated. The results are as shown in Table 1. Example 3 Using a load of 2160 g, an MFR at 230 ° C of 60 gA for 0 minutes (A) a B-based polymer [density 〇.91〇g/cm3, melting point i61.7°C, Mw/Mn 3.40] was used as A) propylene-based polymer portion, using a load of 2160 g, 190 t: MFR of 35 g / 1 〇 minutes) high-pressure method low-density polyethylene [density 〇 · 9 丨 6 g / cm 3 ] as (B) south pressure method low density poly The ethylene portion was separately used at a forming temperature of 210 using a separate extruder. Melt under the armpits. Using a split type composite fiber spinning spun yarn having a total cross-sectional number of 16 as shown in Fig. 1(a), (A) a propylene-based polymer portion and (B) a high-pressure method low density A split type composite long fiber having a polyethylene portion with a reset ratio of 50/50 was spun at a wire speed of 2,500 m/min by a so-called spunbonding method and deposited on a collecting belt. Next, in order to divide the fiber, a nozzle having a hole diameter of φ 〇 llmm is used, and the distance from the squeak to the non-woven fabric is 1 〇 cm, the linear velocity is 5 m/min, and the water pressure in the first stage is 60 kgf/cm 2 . The water pressure 丨(8) thief ^~the water pressure of 100kgf/cm2, the water pressure of the fourth stage is 100kgf/cm2, and the water is processed by the waterless processing of 2008, 25, 25, 25, p, pp, and 4 times. It is a non-woven fabric of 5_2. The yield, fineness, stiffness, and stretch of the resulting cloth are shown in Table i. ............................, into the price of sweat. Results __Comparative Example 1_ ^ 216〇g' 23〇〇C^ MFR ^ ^/10 ^^(A) = 5 substances [density 〇.91〇g/cm3, melting point 157t, —/μ polymer part Use the load g, the south density polyethylene [density 〇.972_3] of the clock should be used as a high-density two 'two-heart', respectively, using a separate squeezing machine, at a forming temperature of 240 hearts per 仃. Using the spinneret of the #彳 type composite fiber spinning, which is the total number of divisions in the cross-sectional shape as shown in Fig. 1(a), the weight ratio of the (4) propylene-based polymerization knife to the high-density polyethylene portion is The 5 〇/5 分割 split type complex 5 long fiber 'spun on the collecting belt at a wire speed of 25 (10) m/min by a so-called spunbonding method. Next, in order to divide the fiber, make the nozzle of 孑k <!> mm.limm so that the distance from the nozzle to the non-woven fabric is 〇Cm ' at a linear velocity of 5 m Yang, and the water in the first segment is gfW, the first / Water pressure lGGkgf / em2, water pressure in the third paragraph (8) kgf / em2, the fourth water t lOOkgf / em under the 'non-woven surface (four) surface each 4 times, a total of 8 water jet processing, production unit A split fiber non-woven fabric with an area weight of 5 〇 2 . The division ratio, the fineness, the stiffness, and the tensile strength of the obtained nonwoven fabric were measured and evaluated. The results are shown in Table 1. . b above example 2 20 200825225 ^ /J/pu

(A) propylene-based polymer having a load of 2,160 g and an MFR of 230 ° C of 3 〇g/l 〇 minutes [density: 0.910 g/cm 3 , melting point: 165.4 t:, Mw/Mn 6.79] • (A) propylene-based The polymer portion, using a load of 2160 g, MFR at 190 ° C. A high-density polyethylene of 16 g/10 min [density 0.972 g/cm 3 ] as a high-density polyethylene portion, respectively using a separate extruder at a forming temperature of 240 Melting is carried out at °C. Using a spinneret for a split type composite fiber spinning having a total number of divisions of 16 in the cross-sectional shape as shown in Fig. i(a), the weight ratio of the (A) propylene-based polymer portion to the high-density polyethylene portion is The 50/50 split-type complex a long fiber was spun by a so-called spunbond method at a wire grab of 25 〇〇 m/min and deposited on a collecting belt. Next, in order to divide the fiber, a nozzle having a hole diameter of 0.11 mm is used, and the distance from the nozzle to the non-woven fabric is l〇cm at a linear velocity of 5 m/min, and the water pressure of the first stage is 6 〇 kgf/cm 2 . The water pressure is 100 kgf/cm2, the water pressure in the third stage is 100 kgf/cm2, and the water in the fourth stage is 100 kgf/cm2. The surface and the inner surface of the non-woven fabric are subjected to water spraying four times in total, and the weight per unit area is 5〇g/m2 • The split fiber is not woven. The division ratio, the ironity, the stiffness, and the tensile strength of the obtained nonwoven fabric were measured and evaluated. The results are shown in the table. Captain's case

The MFR of the load of 2160g and 23CTC was 13g/1〇 minutes of the Aztec polymer [density of 0.910g/cm3, Hyun 165 generation, Mw/Mni〇^ is (A) propylene-based polymer part, using load test shoes _ ^ 16g / l 〇 minutes of high-density poly-wife [density (four) chat (five) for the poly-Women part, divided into separate Na Na presses, at the forming temperature I 21 200825225 25737pif °C. The spinneret for the split type composite fiber spinning in which the total cross-sectional shape as shown in Fig. 1(a) is 16 is the same as the weight ratio of the (4) acryl polymer portion and the high-density polyethylene portion. The split-type composite long fiber is spun on a collecting belt by a so-called spinning residue at a wire speed of 25 〇〇m/min & Next, in order to divide the fiber, use the aperture Φ (Uhnm nozzle, the distance from the nozzle to the non-woven fabric is l〇cm, the linear velocity is 5m/min, and the water pressure in the reservation is 2, 2ndOOkgW &gt ; f 3 100kgW . # 4 Section of the water pressure IGGkgW under the 'non-woven surface and the inner surface of each 4 = a total of 8 times narcissus processing, the production unit _ weight of 5 〇 coffee 2 is cut fiber non-woven fabric. Determination of the resulting non-woven division Rate, fineness, stiffness, and tensile strength were evaluated. The results are shown in Table 1. The upper layer was compared with the example 4 without using a load of 2160 g, and the MFR of 23 CTC was 3 minutes (eight) j糸 polymer [density 〇.91〇 g/cm3, melting point 157. 〇, Μ%/·· : (8) C-binding polymer part, using load measurement (4) 叱 leg minutes (8) high pressure method low density polyethylene baking [density 〇 919-3] The second (B)n1 method is a 9-degree low polyethylene portion, which is separately sown at a forming temperature of 2 HTC using a single weaving pressure of $1, and the total length of the keel is 16 in the shape of the surface of the _) (8). Spinning with a spinneret '()) _ polymer portion and (8) high pressure method low density polyethylene parts = 50/50 The split type composite long fiber is deposited on the crane belt by a so-called spinning method at a wire speed of .250 () 111 / min. Continued 22 200825225 2$737pif To 'divide the fiber, use a nozzle with a hole diameter of Φ 0.11mm, the distance from the nozzle to the non-woven fabric is 10cm, the linear velocity is 5ln/min, and the water pressure in the first segment is 60kgf/cm2. In the second stage, the water pressure is 100 kgf/cm2, the water pressure in the third stage is 100 kgf/cm2, and the water pressure in the fourth stage is 100 kgf/cm2. The surface and the inner surface of the non-woven fabric are subjected to water jet processing for a total of 8 times. A split fiber non-woven fabric having a basis weight of 5 〇g/m2. The evaluation of the obtained nonwoven fabric, the fineness, the stiffness, and the tensile strength were measured. The results are shown in Table 1. Comparative Example 5 A propylene-based polymer having a MFR of 2,160 g and 23 CTC of 60 g/10 min was used [density 〇.91〇g/cm3, melting point 157. (:, MW/MH2.75J as the (A) propylene polymer part, mfr ^ 30g/l 的 minute high density polyethylene [density 〇 95g/cm3] using load μ(10) as high-density B-baked P The knives were separately melted at a forming temperature a by using a separate extruder. The total number of divisions in the cross-sectional shape as shown in Fig. 1(a) was 16 for the twisting of the twisted-type twisted fiber. The head, the split type long fiber of (A) the weight ratio of the C part and the high density red thin part is 5), and is spun by a so-called spunbond method at a wire speed of 25 〇〇m/min. On the belt. Next, in order to perform _ minute #], a nozzle having an aperture Φ of 0.11 mm is used, and the distance from the nozzle to the non-woven fabric is set to be 5 m/min, and the water pressure in the first stage is (9) kgf/cm2, second. The water pressure of the section is lOOkgf/cm2, the water pressure of the third stage is gW, and the water pressure of the fourth stage is l〇〇kgf/cm2. The surface and the inner surface of the non-woven fabric are carried out 4 times in total, and the total amount is 23 200825225. Machining was carried out to produce a split fiber non-woven fabric having a basis weight of 5 〇g/m2. The division ratio, the fineness, the stiffness, and the tensile-degree of the obtained nonwoven fabric were measured, and the scalar price was measured. The results are shown in Table 1. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . The load 216〇g, 230 is used. (A) propylene-based polymer having a MFR of 60 g/10 min [density 〇 910 g/cm 3 , melting point 157 ° C, Mw / Mn 2.75] _ as a (A) propylene-based polymer portion, a load of 2160 g, 190t: a linear low-density polyethylene having a MFR of 15 g/10 minutes [density of 0.915 g/cm3] as a polyethylene portion, which was separately melted at a forming temperature of 210 c using a separate extruder. A spinnator for split type conjugate fiber spinning having a total number of divisions of 16 in the cross-sectional shape as shown in Fig. 1(a) was used, and (A) a propylene-based polymer. The split composite long fiber _..__ dimension of the 50/50 weight ratio of the file and the K 晞 , is spun by a so-called spunbond method at a wire speed of 2500 m/min, and is deposited on the trap T. . Next, in order to divide the fibers, a nozzle having a hole diameter of φ _ 0.11 mm is used, and the distance from the nozzle to the non-woven fabric is increased by 丨, at a linear velocity of 5 m/min, and the water pressure in the first stage is 6 〇 kgf/cm 2 . The water pressure of the second stage is 100kgf/cm, the water pressure of the third stage is i〇〇kgf/cm2, and the water pressure of the fourth stage is H^kgf/cm2. The surface and the inner surface of the non-woven fabric are carried out 4 times, for a total of 8 people. Water jet processing to produce a split fiber male woven fabric having a basis weight of 5 〇g/m2. The division ratio, the fineness, the stiffness, and the tensile strength of the obtained nonwoven fabric were measured and evaluated. The results are shown in the table. This Comparative Example 7 24 200825225 ^ 〇/pil 乂 (A) propylene-based polymer having a MFR of 2160 g and 230 〇C of 35 g/l 〇 minutes [density 〇.91〇g/cm3, melting point l57t:, JViw/ Mn2.7J - '--, 乍 is (A) propylene polymer portion, MFR using load 2160g, 19CTC - high density polyethylene of ^6g/10 minutes [density 〇.972g/cm3] as high The density polyethylene parts were separately melted using a separate extruder at a forming temperature of 240 and a lower L line. Using a spinneret of a 彳-type composite fiber spinning having a total division number of 6 in the cross-sectional shape as shown in Fig. 1(a), (a) a propylene-based polymer portion and a high-density polyethylene portion The split type composite long fiber having a weight ratio of 50/50 was spun at a wire speed of 25 〇〇m/min by a so-called spunbonding method, and was deposited on a collecting belt. Next, in order to divide the fibers, use a nozzle of hole 彳I Φ 〇.llmm so that the distance from the nozzle to the non-woven fabric is 10 cm, and the linear velocity is 5 m/min. The water pressure of the section is 6〇kgf/cm2, the water pressure of the second stage is l〇〇kgf/cm2, the water pressure of the third stage is l〇〇kgf/cm2, and the water pressure of the fourth stage is io〇kgf/cm2. The surface and the inner surface of the non-woven fabric were subjected to water jet processing for 4 times in total, and a divided fiber nonwoven fabric having a basis weight of 5 〇 2 was produced. The division ratio, the fineness, the hard climbability, and the tensile strength of the obtained nonwoven fabric were measured and evaluated. The results are shown in Table i. [Table 1] 25 200825225

Tensile strength MD; N/25mm CD; N/25mm stiffness MD; mm CD mm air permeability, cc/cm /sec hand sensitivity d segmentation % swallowing amount g/min forming temperature °C molecular weight distribution Mw/Mn 2 S3 1 s 1 Melting point °C 1 MFR g/10 min | Density g/cm3 Tensile strength MD N/25mm CD; N/25mm stiffness MD mm CD; mm Air permeability cc/cm2/sec Hand touch: 'dl split Sex % : 7 1 2nd paragraph kg/cm2 ® 1st paragraph: kg/cm2 Filament quantity g/min Forming temperature °c Molecular weight fraction Mw/Mn 2 i 2 丨. Η 〇° Melting point; °c MFR β/ lOmin Density g/cm -..... O 00 K> X Ia u> ΪΟ o 0.50 K) 2.75 56261 154532 ON o 0.910 Comparative Example 1 N) K) N) This K) One 〇SsO 1 ◎ 0.35 00 Lh ο LU Ο 0.50 to ο 2.75 56261 1 154532 >—* L/i Os Ο 0.910 Example 1 0.50 to o 8.17 9729 79460 U) to Os 0.972 W 0.50 Ν) 3.73 12549 46827 % K) Ο 0.910 OJ LO 0- 4 to έ > ob\ KJi 0.50 M Private o 6.79 30800 209000 165.4 U) o 0.910 Comparative Example 2 - K) Οι ο 〇 0.36 00 K) ο UJ Ο 0.50 Κ) Ο 2.75 56261 154532 Ui S 0.910 Example 2 0.50 K> o 8.17 9729 79460 Ui K> s: 0.972 trj 0.50 to ο 7.30 9903 72335 93.5 Η-* Ο ^J\ U) Lh 0.910 m UJ u> to ON U) oo N> X k> NJ Ui 0.50 o 10.97 30900 339000 165.4 Ui 0.910 | Comparative Example 3 - N) VO K) On 〇〇 0.37 oo ο ο U) ο 0.50 to ο 3.40 38293 130051 Κ) 161.7 s 0.910 Example 3 0.50 IM o 8.17 9729 79460 Ui N>Ξ; 0.972 s 0.50 ο 7.30 9903 72335 93.5 105.1 U) U\ 0.910 to — ro bj ON uj o 0 0.58 j 0.50 Ki K? o 2.80 20~300,000 j U\ U) o ! 0.910 弋Comparative Example 4 0.50 K) o 3.73 12549 46827 o 00 K) o 0.919 to — 00 UJ OJ o ro to X Lj Ux K? K) | 0.50 | 〇Ll75j | 56261 1 I 154532 I Ui as o 0.910 Comparative Example 5 0.50 K> | 3.00 OJ LO o 0.95 K> NJ ON ) so X 0.93 UJ | 0.50 | to o 1 2.75 I | 56261 | | 154532 U\ G\ o 0.910 Comparative Example 6 0.50 K) o | 3.00 Lh 0.915 m OJ UJ K3 o 〇t> o bs o 1 0.50 1 1 2.40 I | 2.70 I 30800 209000 U\ Ui 0.910 2 Comparative Example 7 [0.50 1 K) o 00 | 9729 1 1 79460 1 to 5: 1 0.972 | 25737pif 200825225 Acrylic and ί ^知\一例1 Example 2, composite long fiber non-woven fabric formed using poly 8 〇 0 / ene of Example 3, and the singability is greater than or equal to that of Comparative Comparative Example 2, Comparative Example 3, Comparative Example 4, and the use of polypropylene Forming and feeling poor with Polyethylene. , cloth, knife brake is difficult, the fineness can not be thinned, soft industry practicality method: the division is used for various (four) t 1 and the hand feel is excellent, can also be widely used non-woven;: = 4 clothing robes or industrial robes, etc. A table cloth such as a face material, a disposable diaper or a towel, and the like. l 巾上上用品, carpet or artificial leather lining: ί=, can be listed as: vtr or CD cloth, light materials, such as: glass, expensive all, ancient two two \ to the floor Use, etc., "mirror decontamination or degreasing film, although the invention has been disclosed in a preferred embodiment." Anyone skilled in the art, in the non-Linbenfa (4), can make some more coffee, so this The present invention is defined by the scope of the patent application. [FIG. 1A to FIG. 1E is a schematic view showing an example of a cross section of a composite long fiber according to the present invention. The four forms of Fig. 1A to Fig. 1D are listed. Fig. 1E is an example of the sectional form after the division process. In the figure, the white coating portion and the black coating portion respectively indicate the combined resin. 】 none

28

Claims (1)

200825225 X. Patent application scope: 1. A split type composite long fiber, which is used: (A) Load 2160g, 230 C]V[FR (melt flow rate) is greater than or equal to 4〇g/i〇分# a terpene-based image compound; and (B) a high-pressure process low-density polyethylene, and (A) the propylene-based polymer portion and (B) the high-pressure process low-density polyethylene portion are connected to each other. 2. The split type composite long fiber according to claim 1, wherein the (A) propylene-based polymer has a Mw/Mn (weight average molecular weight/number average molecular weight ratio) of less than 5.0. 3. The split type composite long fiber according to the invention of claim 2, wherein (B) the high pressure method low density polyethylene has a load of 216 〇g, 19 〇 < ^ MFR is greater than or equal to 2 〇 g / i 〇 minute. A non-woven fabric comprising the split type composite long fibers as described in claim 1 or 2. 5. A segmented fiber non-woven fabric which is subjected to stress applied to the non-woven fabric as described in claim 4, (A) a propylene-based polymer portion and (8) a high-pressure method low-density polymer. The division of the ethylene part is formed. 77. The split fiber nonwoven fabric of claim 5, wherein the application of stress is performed using a high pressure liquid stream. A method for producing a non-woven fabric comprising a split type composite long fiber, characterized in that: (A) a propylene-based polymer having a MFR of 2,160 g and 23 ° C and a MFR of 4 大于 or more and (B) a high pressure The low-density polyethylene is sprayed from a spinneret having a 29 200825225 composite spinning nozzle, and the composite of the (A) propylene-based polymer, the portion and the (B) high-pressure low-density polyethylene portion are spun together. The fiber is cooled by a cooling fluid, and the filament is applied to the long fiber by the fluid to refine it. After the l(A)^-thin polymer is partially aligned with the epi-crystal, it is trapped and accumulated on the collecting belt. The polyethylene part. ', τ σ part and (B) high pressure no % 疋 use the horse pressure night body flow to carry out. 30