TW200306213A - Nonwoven web with improved adhesion and reduced dust formation - Google Patents

Abstract

Making suitable nonwoven webs requires good adhesion between the binder and the absorbent material. The present invention relates to a nonwoven web having improved adhesion based on tackifiers present in the binder. Optionally, the binder with tackifier may also contain an adhesion promoter, usually grafted polyolefins, and an enhancement agent, usually inactive inorganic compounds in powder form. The web comprises from about 5 to about 25% by weight binder fiber and from about 75 to 95% by weight absorbent. The absorbent may be a natural absorbent or a super absorbent polymer or a combination of these. The binder fiber contains less than about 40% by weight tackifier. Tackifier is selected form the class of rosin, rosin esters, terpene based, piperylene based, and hydrocarbon based compounds.

Description

200306213, A7 ......... B 7 V. Description of the invention (!) '' [Field of invention] The present invention relates to nonwoven fabrics made by dry laying and wet laying, which can be used in Diapers, incontinence pads, sanitary napkins, and other liquid-absorbent pads. In particular, these pads generally include adhesives and wood pulp, or other absorbent materials. When making suitable non-woven fabrics for these purposes, good adhesion between the adhesive and the absorbent material is needed. More specifically, the present invention relates to a non-woven fabric with improved adhesion. The adhesive is present in the adhesive. Tackifiers include: rosin, rosin esters, compounds with terpenes as the matrix, piperylene as the matrix, and compounds with the carbohydrate as the matrix. The adhesive with a tackifier may optionally include an adhesion promoter, usually a grafted polyolefin, and a reinforcing agent, usually an inactive inorganic compound in a powder form. ~ 11 [Prior art]

5 1A Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 2 Non-woven fabrics, especially absorbent articles in disposable form, such as disposable diapers, are very popular in the market, however, these products still need to be improved In particular, its adhesiveness, for example, during the manufacturing process, processing into articles, and use, so that it will not loosen. Prior to the present invention, it was known that existing non-wovens can be formed from absorbents (wood pulp and optionally up to 25% by weight superabsorbent polymer, SAP) and a binder, such as two-component fibers or low-melt polymer fibers. Woven fabrics, these existing compositions contain about 10% by weight binder and about 80 to 90% by weight absorbent. When manufacturing these nonwoven fabrics, firstly mix wood pulp (with selected SAp) with a binder, and then place the composition in a heating zone to polymerize the paper. The paper size applies the Chinese National Standard (CNS) A4 specification ( 210x297 public love) ~ -------- 200306213 V. Description of the invention (2 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 0 5 0 112 A7 B7 low-melting material, or two-component fiber low-melting material Can be pre-melted and coated on at least one mouth of most wood pulp fibers (with any selected SAp), and then put the composition into a cooling zone, so that the lower-melting adhesive material can be cured, so it can be cured. Wood pulp (with selected SAp) is bonded into a single fabric structure. Optionally, other fibers, such as other synthetic fibers or natural fibers, can be added to achieve other desired characteristics, such as low density and high air permeability. Resistance, compression resistance, and liquid absorption rate.

Hansen et al., U.S. Patent No. 5,981,41, disclose that blending two component fibers with cellulose fibers, such as wood pulp fibers or cotton fibers, to produce a nonwoven fabric that can be used in, for example, disposable diapers. .

Fujiwara et al., U.S. Patent No. 5,994,244, discloses a non-woven fabric comprising cellulose-based fibers, such as fluff pulp and low-melt fibers, which can be used to make disposable diapers and other articles. It also reveals that: adding inorganic particles (such as titanium oxide) to the two-component spinning-bonded filaments of ethylene-propionic acid | purpose-maleic anhydride sheath, this particles can reduce the filaments during spinning Adhesiveness makes for a more uniform fabric. Suitable component fibers can be found in US Patent No. 4,950,541 to Tabor et al. And US Patent No. 5,372,885 to Tabor et al., Both of which are incorporated herein by reference. These patents disclose the use of a low-melt maleic acid or maleic anhydride. Grafted polyethylene. In U.S. Patent No. 5,126,201, Shiba et al. Disclosed that titanium dioxide was simultaneously added to the core and sheath of the two-component binder fiber to improve the cutting efficiency of the nonwoven fabric. The amount of titanium dioxide in the core was greater than 15%. Applicable to China Paper Standard (CNS) A4 (210x297 mm)

200306213

V. Description of the invention (3) Consumer 10 15 20 The best is that the sheath does not contain dioxin and has low adhesion. Emulsification of titanium dioxide in the sheath will decrease

Mats⑽ et al., In Japanese Patent No. 2_169718, disclose that the sheath is made of two-component fibers with a magnetic core, and the sheath contains 0 to 10% organic particles (preferably dioxin is preferred). The fabric may be To obtain better softness and opacity, this patent shows that the addition of inorganic particles reduces the: strength. [Summary of the Invention] As mentioned above, there is still a technical need to improve the adhesion of these nonwoven fabrics. The present invention is to improve these existing nonwoven fabric products, in particular, the present invention uses a tackifier to To improve adhesion, tackifiers include: rosin, rosin esters, and compounds with terpenes as the matrix, pipexene as the matrix, and carbohydrates as the matrix. The invention relates to a two-component fiber or a low-melt polymer fiber, and a tackifier, so as to manufacture a bonding agent with improved adhesion. The two-component fiber contains a high-melting portion and a low-melting portion. The low-melting portion contains a tackifier. If a low-melting fiber (instead of a two-component fiber) is used, it also contains a tackifier and a tackifier. It is believed to act as an adhesion promoter, which binds the absorbent materials together to form a single fabric. The low-melt polymer fiber or the low-melt portion of a two-component fiber is defined as a "low-melt matrix". In the broadest sense, the present invention includes a binder fiber containing a tackifier. The binder fiber may be a two-component fiber or a typical low-melt polymer fiber. The low-melt matrix contains a tackifier and contains a tackifier. Adhesive fiber The paper size is in accordance with Chinese National Standard (CNS) A4 (210x297 mm) 200306213 A7 B7 V. Description of the invention (4) The dimension can optionally include one kind of adhesion promoter and one kind of enhancer. In the broadest sense, the fabric of the present invention includes a binder fiber that includes a tackifier and an absorbent, which may be synthetic or natural. In the broadest sense, the present invention also includes a fabric comprising from about 5 to about 25% by weight binder fibers, and from about 75 to 95% by weight absorbent. The absorbent can be a natural absorbent or a Superabsorbent polymer, or a combination of both. Based on the low-melt matrix, the binder_fiber contains less than about 40% by weight of a tackifier. ο 11 5 11 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 2 [Example method] Suitable absorbents are natural or synthetic absorbents. Synthetic absorbents are mainly known as superabsorbent polymers (SAP). The absorbent includes 75 To 95% by weight fabric. Natural absorbents are hydrophilic materials, such as cellulose fibers, wood pulp mill wrap, cotton, cotton linters, and regenerated cellulose fibers, such as: 嫘 萦, or a mixture of them. Cheap and easy to obtain. Absorbent pads using natural absorbents may not provide adequate liquid absorption in all environments, and natural absorbents are very large. Therefore, many absorbent pads use relatively small amounts of SAP. The cost of SAP is much higher than the cost of natural absorbents. High, the natural absorbent replaced by SAP can reduce the overall volume of the pad and / or provide super liquid absorption. As used herein, a superabsorbent polymer, or the term "SAP", refers to a material that is swellable and is generally water-insoluble. The amount of water that can be absorbed is at least about 10 times its weight. About 20 times, preferably about 50 times or more. Superabsorbent polymers can be produced from organic materials, which can include paper and paper sizes that apply Chinese National Standard (0NS) A4 specifications (210x297 mm) 200306213 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention ( 5) Natural materials, such as agar esters, pectins, and guar gum, and synthetic materials, such as synthetic hydrogel polymers. Synthetic hydrogel polymers include, for example: carboxymethyl cellulose, alkali metal salts of polyacrylic acid, polypropylene amidamine, polyvinyl alcohol, ethylene maleic anhydride copolymer, polyvinyl ether, hydroxypropyl cellulose, poly 5 Polymers and copolymers of vinylmorpholinone, ethylenesulfonic acid, polyacrylates, polyacrylamide, polyvinylpyridine, and the like. Other suitable polymers include: hydrolyzed acrylonitrile grafted starch, acrylic acid grafted starch, copolymers with isobutylene maleic anhydride, and mixtures thereof. Preferred hydrogel polymers are micro-parents to obtain materials that are substantially insoluble in water. Cross-linking can be achieved by, for example, radiation or 10-coupling, ionicity, van der Waals force, or hydrogen bonding. Suitable materials are available from various vendors such as The Dow Chemical Company, Alliance Colloids, and Stockhausen. The superabsorbent polymer may be in the form of particles, sheets, fibers, rods, films, or any number of geometrical forms. The binder fiber of the present invention may be in the form of a low-melt fiber or a form of 15 two-component fibers. The low-melt portion of the two-component fiber includes the same material as the low-melt fiber. The agent fiber is a two-component fiber. The binder fibers have an average length of from about 3 to about 75 mm. Preferred binder fibers have deniers between 1 and 10. The low-melt matrix can be a polyolefin, such as polyethylene (PE), polypropylene (PP), polybutene, or a mixture thereof. 20 Suitable polyethylenes can be: high density polyethylene (HDPE), medium density polyethylene (MDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), ultra low density polyethylene (ULDPE ), Or a mixture thereof, to make these polyethylenes, Ziegler-Natta or metal dicyclopentadiene complex catalysts can be used. Alternatively, the low-melt matrix can be a low-melt polyester, such as: polybutylene. This paper is sized to the Chinese National Standard (CNS) A4 (210 x 297 mm). &Quot; ----------- -

200306213

V. Description of the invention (6) 5

ο 1X

5 1X Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 2 Polyethylene terephthalate, phthalate (PBT), or polytrimethylene terephthalate (PTT) '' A low-melting copolyester, such as : A copolymer of PET, a comonomer with which it is copolymerized, such as: a suitable diol component, selected from: 1,4-cyclohexanediethanol, 1,2-propylene glycol, propylene glycol, M-butanediol, 2,2-Dimethylpropanol: Alcohol, 1,6-hexanediol, 1,2-cyclohexanediol, 14-cyclohexanediol,% hexanediethanol, 1,3-cyclohexane Alkanedimethanol, and diols containing one or more oxygen atoms in the chain, such as: diethylene glycol, triethylene glycol, dipropylene glycol, tripropylene glycol, or a mixture thereof; or one or more In addition to phthalic acid, (aliphatic, cycloaliphatic, or aromatic dicarboxylic acid), such as: m-dibenzoic acid, ^% hexanedicarboxylic acid, L3-cyclohexanedicarboxylic acid, amber Acids, glutaric acid, adipic acid, sebacic acid, 1,12-dodecanedioic acid, 2,6-diazeptasine, dibenzoic acid, or mixtures thereof. The shape of the two-component fiber can be a low-lying part next to a high-melting part, such as a side-by-side structure, or a sheath_Ruixin structure, whose sheath is a low-melting component, and the core is high. Melt components, high-melt parts can be selected from poly-ethylene, such as: polyhexylene, polypropylene, olefin, and polybutylene; poly-vinyl, such as polyethylene terephthalate (PET), polybutylene terephthalate Phthalic acid, polyvinyl naphthalate, and the like; polyamines, such as: nylon 6, nylon 66; polypropylene vinegars, such as: polymethacrylate, $ methacrylate , And analogs; and mixtures and copolymers thereof. The temperature of the low-melting portion of a suitable two-component fiber is at least about 5 ° lower than the so-called high-melting portion. A suitable two-component fiber has a low-melting portion, i includes about $ to about 75% by weight of the two-component fiber, and the rest is a hearing-melting portion. If a 50-50 two-component fiber is used for bonding, Agent fiber, 50 weight. shape

t 200306213 Α7 'Β7 V. Description of the invention (7) The melting part is a low-melt matrix with less than about 40% by weight of a tackifier (with or without an adhesion promoter, or a reinforcing agent, or a mixture thereof) , And 50% by weight of the high melting part can be PET. Regardless of other components, suitable two-component fibers are such as: polyethylene / 5 polypropylene, polyethylene / polyester (especially polyethylene terephthalate), polyethylene / nylon, polyester / PET, PBT / PET, PTT / PET, and mixtures thereof are preferably polyethylene / polyester fibers, such as: LLDPE / PET, or polyethylene / polypropylene, such as: LLDPE / PP. When both the low-melting portion and the high-melting portion of the two-component fiber contain polyenes, the high-melting polyene must have a lower 10 melting polyene having a melting point of at least 5 ° C. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. Commercialized tackifiers based on rosin are known as: Foral 85 from Hercules, Permalyn 2085 from Eastman Chemical, or Escorez 5400 from Mobil Exxon i 5 Chemical. Commercially available terpene-based tackifiers are: Zonarez, Zonatac, and Nirez from Arizona Chemical Company. Commercially available tackifying agents based on piperylene are: Picotac and Hercotac from Hercules. Commercially available hydrocarbon-based tackifiers are Escorez 5400 from ExxonMobil Chemical. A better tackifier than 20 is rosin ester, and the glyceride of pine oil rosin is the best. The tackifier is preferably a low-melt matrix containing about 0.1 to about 40% by weight, more preferably 0.5 to 10, and most preferably 1 to 5%. In addition to tackifiers, you can also choose to use adhesion promoters, such as: polyenes grafted with maleic acid or maleic anhydride (ΜΑΗ), which are converted after grafting to polyene Standard (CNS) A4 specification (210x297 mm) 200306213 A7 B7 V. Description of invention (8) 10 15 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 20% acid or succinic anhydride, and a better degree of grafting with MAA 10% by weight (by titration). Ethylene-acrylic acid copolymers and the composition with the aforementioned grafted polyolefins are also suitable as adhesion promoters. The polyethylene which has been commercialized with maleic anhydride is known as: ASPUN resin produced by The Dow Chemical Company. Commercialized ethylene-acrylic acid copolymers are: Bye 2022, Bynol 21E533 and Fusabond MC 190D from DuPont, and Escor acid terpolymers from ExxonMobil. Based on the weight of the low-melt matrix, the content of the 'ethylene-acrylic copolymer is about 1 to about 20 weight. /. It is more preferably 15% by weight. The amount of grafted polyene adhesion promoter is: based on the weight of the low-melt matrix, the amount of maleic acid or maleic anhydride added is about 0.05% by weight to about 2% by weight, and % By weight is preferred. In addition to tackifiers and selective adhesion promoters, enhancers can also be optionally used. The enhancers can include any of the following: titanium dioxide, talc, silica satin, calcium carbonate, calcium oxide, magnesium, and other oxides. Titanium dioxide is preferred. The amount of reinforcing agent in the polymer is about (M to about i%) based on the weight of the low-melt matrix. In order to achieve good dispersibility and good spinnability in the polymer, the particle size is @ 〇 The range of 〇4 to about 5 micrometers, and preferably the range of 0.05 to 2 micrometers. When a low-solubility grade containing a tackifier, any adhesion promoter, and any reinforcement = is prepared, the better is The masterbatch is blended into a low-density matrix, and then its melt-spun yarn is made into fibers according to conventional techniques. ▲ The fabric of the present invention can be prepared by dry-laying or wet-laying, and the dry-laying fabric can be laid by thread Method, carding method, stone right method, or random carding method. When air-laid fabrics are produced, fibers can be added to the air-to-air gauge scale rules. "Qx297 Gongfa 2003306213, A7

5 ο 11 5 11 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs ο 2. The fibers can be evenly mixed and then deposited on the surface of the net. The carding method combines or sorts the fibers into parallel lines, and separates the hair bundles into individual fibers. The stone right stone method combines fibers in a similar carding method, and then connects the fibers in the mouth to create a fabric, and multiple layers of fabric can be overlapped to increase the desired weight. The random carding method uses centrifugal force to throw the fibers into the weaving, so the fibers have a random orientation. It can also generate multiple layers of fabric to obtain the desired fabric weight, and then combine the dry-laying components together. Wet-laid fabrics can be made using a modified papermaking process in which the fibers are suspended in water, poured gently onto a web, dried, and then bonded together. The fabric is bonded using a binder fiber such as the aforementioned low-melt polymer fiber or two-component fiber. The fabric of the fiber (bonding fiber and absorbent) can be combined by heating method. The heating bonding system will melt the bonding fiber by the following methods: in an oven (hot air, radiation, or microwave), or a heated calender roll, Or borrow ultrasound energy. The fabric is then cooled to solidify the molten fusing fibers. At this point, the fabric has a sufficiently rigid structure and can be used as a component of an absorbent pad. Fabrics are manufactured using dry-laying or wet-laying techniques. Only the binder fibers (low-melt polymer fibers or two-component fibers, or both) and absorbent fibers (with or without SAP) are mixed and the absorbent is mixed. In the case of binder fibers, about 5 to about 25% by weight of binder fibers are required in the total fabric, and the rest is mainly an absorbent. The fabric composition of the present invention may be laminated until its weight S is in the range of about 20 to about 500 grams (gsm), preferably about 50 to about 250 gsm. The fabric can then be cut into a variety of lengths and widths for end-use applications, that is, window curtains, dentist paper, and paper standards that apply to Chinese National Standard (CNS) A4 (210 X 297 mm) 200306213 A7 B7 5. Description of the invention (10) Pockets, eye masks, diapers, incontinence pads, sanitary napkins, wound pads, air filters, liquid filters, and woven fabrics, such as curtains, bedding, or pillows. Test procedure 5 The dry strength of the fabric is determined in accordance with the TAPPI test method T498 om-88. For MD (machine direction) and CD (cross direction) fabric strengths were measured on a 25 · 4 × 203.2 mm strip, and the machine was tested using an Instron 1122. The test was performed at a starting distance of 127 mm and a speed of 304.8 mm per minute. The strength units are reported in grams per 25 mm. 10 The binding index is the square root of the product of the strength in the machine and transverse directions. Dust measurement is using a piece of 127 X 127 mm fabric, cut into 25.4 X 25.4 mm samples, put the samples in a fluff fiberizing machine, apply 100 PSI air flow to the samples for 300 seconds, and then use a filter Collecting loose fibers (dust), the percentage of weight loss is reported as 15% of dust. Examples Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economics In the following examples, various two-component fibers were prepared, with a core of 0.55 IV PET and a sheath of various compositions. The two-component fiber includes a 50/50 core / 20 sheath. The sheath is mainly LLDPE. LLDPE is Aspun XU 61800.34 (Dow 34) from The Dow Chemical Company, which contains 10% by weight of MAP. Before fiber spinning, pre-blended additives (tackifiers, adhesion promoters, and reinforcing agents) are mixed with the sheath polymer, and the tackifier is pre-blended with the 40% concentrated sheath polymer After spinning and elongation, two sets of 12 paper sizes are applicable to the Chinese National Standard (CNS) A4 specification (210x297 mm) A7 200306213 _B7_ · V. Description of the invention (11) Fibers are cut into 6 mm lengths. The fabric includes 12% by weight of two-component fiber and 88% by weight of wood pulp. The type of wood pulp used is Waco 416. The percentage of tackifier, adhesion promoter, and reinforcing agent used in the examples (as shown in the tables). , Based on the weight of the low-melt base 5 mass. Example 1

The various two-component fibers are shown in Table 1. The adhesion promoter was maleic anhydride-grafted polyene, which was obtained from The Dow Chemical Company's ASPUN XU 60769.07 10 (Dow07). The ethylene-acrylic acid copolymer was obtained from DuPont. BYNEL 2022 and ESCOR AT-325 from Exxon Mobil Corporation. The viscosity enhancer is a glycerin S purpose of pine oil and rosin. It is available from PERMLYN 2085 of Eastman Chemical Company. The non-woven fabric is manufactured from these two-component fibers using a wet-laying method. The basis weight obtained is 15 g / m 2. The fabric samples were dried at 100 ° C for 32 seconds, and then placed in a hot air oven for 15 seconds to be combined. The binding index is shown in Table 1 and compared with the control sample without the thickener. Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs of the Consumer Cooperatives The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210x297 mm) 200306213 A7 B7 Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs of the Consumer Cooperatives of the Ministry of Economic Affairs 5. Description of the invention (12) Table 1 Fiber Adhesion promoter,% tackifier,% bonding temperature,. C binding index, g / 25mm relative to control sample,% control sample Dow 07, 10% without 135 250.9 1 Bynel 2022, 5% Permalyn, 5% 135 368.9 47.0 2 Escor AT 325, 5% Permalyn, 5% 135 285.4 13.8 3 Dow 07, 5% Permalyn, 5% 135 388.1 54.7 4 Escor AT 325, 8% Permalyn, 2% 135 281.1 12.0 This example shows that the use of tackifiers and adhesion promoters can have improved 10 tensile strength. Example 2 In this example, the same method as in Example 1 was used to prepare a wet-laid fabric, and the effect of the amount of adhesion promoter and tackifier on the strength of the fabric was examined. The two-component composition and binding index are reported in Table 2. The control sample was a sheath that did not contain adhesion promoters or tackifiers. 14 This paper size is in accordance with China National Standard (CNS) A4 (210x297 mm) 200306213 A7 B7 V. Description of the invention (13) Table 2 Fiber adhesion promoter,% thickener,% binding temperature. C binding index, g / 25mm relative to the control sample,% control no without 135 314.3 sample 5 Dow 07, 5% without 135 267.0 -15.0 6 Dow 07, 10% without 135 339.7 8.1 7 without Permalyn, 5% 135 415.7 32.3 8 Dow 07, 5% Permalyn, 5% 135 442.2 40.7 9 Dow 07, 10% Permalyn, 5% 135 412.5 31.2 10 Without Permalyn, 10% 135 422.3 34.4 Control None 175 378.3 Sample 5 Dow 07, 5% None 175 345.7 -8.6 6 Dow 07, 10% without 175 401.6 62 7 without Permalyn, 5% 175 405.7 12 8 Dow 07, 5% Permalyn, 5% 175 493.4 30.4 9 Dow 07, 10% Permalyn, 5% 175 492.9 30.3 10 without Permalyn 10% 175 444.3 17.4 This example shows that only using a tackifier and not using an adhesion promoter, that is, 15 can improve the binding index of the fabric. Example 3 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs This example uses the fabric prepared according to Example 1 to study the effect of the amount of tackifier. The two-component composition and binding index are reported in Table 3 and the control sample is 20 Is a sheath containing 5% Dow 07 adhesion promoter. 15 This paper size is in accordance with China National Standard (CNS) A4 (210x297 mm) 200306213 A7 B7 V. Description of the invention (14) Table 3 Fiber adhesion promoter,% thickener,% binding temperature. C binding index, g / 25mm relative to control sample,% control sample Dow 07, 5% none 135 210.1 11 Dow 07, 5% Permalyn 2085, 1% 135 337.7 60.8 12 Dow 07, 5% Permalyn 2085, 2.5% 135 346.3 64.8 13 Dow 07, 5% Permalyn 2085, 3.75% 135 352.6 67.8 14 Dow 07, 5% Permalyn 2085, 5% 135 401.6 91.2 Control sample Dow 07, 5% None 175 268.2 11 Dow 07, 5% Permalyn 2085, 1 % 175 431.0 60.7 12 Dow 07, 5% Permalyn 2085? 2.5% 175 351.4 31.0 13 Dow 07, 5% Permalyn 2085, 3.75% 175 456.1 70.1 14 Dow 07, 5% Permalyn 2085, 5% 175 452.7 68.8 15 This example shows : Using only a low amount of tackifier at 1% by weight can still significantly improve the bond index. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Example 4 2 Two-component fibers were prepared according to Example 1. These fibers were air-laid with wood pulp to obtain a fabric with a basis weight of 175 g / m 2. Pass the fabric through A dryer was held at 140 or 175 ° C for 15 seconds. Its two-component composition and binding index are reported in Table 4. The control sample was a sheath containing 10% Dow 07 adhesion promoter. In this example, 16 paper sizes are in accordance with Chinese National Standard (CNS) A4 (210x297 mm) 200306213 A7 B7 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (15) Using a titanium dioxide enhancer, Titanium dioxide was prepolymerized with sheathed polyethylene (Dow34) at a concentration of 35%. Table 4 Fiber adhesion promoter,% tackifier,% titanium dioxide,% bonding temperature, ° C bonding index, g / 25 mm relative to the control sample,% control sample Dow 07, 10% none without 140 267.0 15 Dow 07, 5 % Permalyn 2085, 2.5% None 140 342.4 28.2 16 Dow 07, 5% Permalyn 2085, 2.5% 0.70 140 414.9 55.4 17 Dow 07, 5% Permalyn 2085, 2.5% 0.35 140 398.9 49.4 18 Dow 07, 5% Permalyn 2085, 5 % 0.35 140 413.8 55.0 19 Dow 07, 5% Permalyn 2085? 5% 0.70 140 348.0 30.3 The use of enhancers can improve the binding index. The easy-to-generate dust of the air laying method is worrying. The samples and the fabrics of Tests 16 and 19 were combined at 140 ° C and the dust was measured. The results are shown in Table 5. This paper size applies to China National Standard (CNS) A4 (210x297 mm) A7 200306213 B7 V. Description of Invention (16) Table 5 Fiber adhesion promoter,% thickener,% titanium dioxide,% binding temperature. C Dust,% Dust reduction control sample Dow 07, 10% None None 140 7.95 16 Dow 07, 5% Permalyn 2085, 2.5% 0.70 140 6.45 18.9 17 Dow 07, 5% Permalyn 2085, 5% 0.70 140 6.96 12.5 Contains enhancer The thickening agent can reduce the generation of dust. Therefore, according to the present invention, it is obvious to provide a binder fiber containing a tackifier and a fabric made therefrom, which can completely achieve the objectives, goals, and advantages set forth above. When the present invention is illustrated with its specific examples, it is obvious that a person skilled in this field can obviously make many choices, modifications, and changes to the foregoing description. Therefore, all such choices, modifications, and changes Changes are included in the essence and broad scope of the appended items of the scope of patent application of the present invention. [Schematic description] None Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs _18 This paper size applies to China National Standard (CNS) A4 (210x297 mm)

Claims (1)

200306213 A8 B8 C8 5 10 15 The Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs printed 20 kinds of improved adhesive binders, including a kind of adhesive fiber containing low dazzle matrix ~, and a combination of adhesives. The low melt matrix is low-melt polymerization Fiber, the low-melting portion of the two-component fiber, or both. 2. An improved adhesive according to item (j) of the scope of the patent application, wherein the tackifier is selected from the group consisting of: rosin, rosin g, osmium as a matrix, xanthoprene as a matrix, and carbohydrate A matrix compound. 3. The improved binder according to item 丨 of the patent application, wherein the two-component fiber has a high-melting portion. 4. In the root series, the improved cohesive cutting of item 3 of the patent is requested, wherein the high-melting part is selected from the group consisting of polyamide, poly-, poly-, poly-acrylic acid, and mixtures thereof. 5. The improved adhesive according to item 4 of the scope of the patent application, wherein the high melting part is polyester. 6. The improved adhesive according to item 4 of the patent application, wherein the high-melting portion is a polyolefin. 7. The improved adhesive according to item 丨 of the patent application, wherein the content of the tackifier is from about 0.1 to about 40% by weight of the low-melt matrix. 8. The bonding agent in item 3 of the patent, wherein the low-melting portion 3 is about 5% to about 75% by weight of the two-component fiber. 9. The improved adhesive according to item 1 of the patent application scope, wherein the low-solubility matrix is selected from the group consisting of polyethylene, polypropylene, polybutene, polyester, copolyester, or a mixture thereof. W. An improved adhesive according to item 9 of the scope of the patent application, wherein the polyethylene is selected from the group consisting of: HDPE, MDPE, LDPE, IHDPE, 19 cells (2iq x 297 Gongchu 200306213 Α8 Β8 C8--^ -__D8 VI. Patent application scope DLDPt; 5 ο 1 ± or mixture thereof. 11. Improved adhesive according to item 9 of the patent application scope, wherein the polyester and the copolymer 1 are selected from the category including: polybutene Terephthalate (PBT), or polytrimethylene terephthalate (ρττ), a low-melt copolyester, such as a copolymer of PET, and a comonomer copolymerized with it, such as: suitable A monoalcohol component selected from the group consisting of: 1,4 · cyclohexanedimethanol, 1,2-propanediol, 1,3_ = diol, L4-butanediol, 2,2-difluorenyl-1,3 " Propylene glycol, hexamethylene glycol, 1,2 'hexanediol, M · cyclohexanediol, I) · cyclohexane dimethanol 丨' Hong Niang hexane dimethanol, and one or more Oxygen diols, such as: ethylene glycol, triethylene glycol 5 1 × printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs or a combination thereof; or one or more Diacids other than terephthalic acid (using aliphatic, aliphatic%, or aromatic dicarboxylic acids) such as: isophthalic acid, 丨, 'cyclohexyl = monocarboxylic acid, 1, 3_ ring Hexanedicarboxylic acid, succinic acid, glutaric acid, adipic acid sebacic acid, 1,12-dodecanedicarboxylic acid, 2,6 "naphthalenedicarboxylic acid, di or mixtures thereof. Article 12. According to the improvement of Item 4 of Shen 4 vocational cement, wherein the low-superstructure fiber is mainly the low-melt matrix and the thickener. 13. ^ An improved bonding agent of Kang Shenqing's patent scope, the low solution base further contains an adhesion promoter. 1 = According to the improvement of item 13 of the patent, please note that the adhesion promoter is selected from the group consisting of maleic acid or maleic anhydride grafted polyene, ethylene-acrylic acid copolymer, or combination. Λ 15: ϊ: ΐ: The improved adhesive of item 14 in which the added maleic acid or maleic anhydride is added to the low-melt matrix 200306213 A8 B8 C8 D8 VI. Scope of Patent Application 5 10 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 20 The range of about 0.05 to about 2.0% by weight. According to the improved adhesive of claim 14 in the scope of Shen Qing's patent, the ethylene and acrylic acid copolymer is present in an amount ranging from about 丨 to about 20% by weight of the low-solution matrix. 17. The improved binder according to item 13 of the Chinese Patent Application, wherein the two-component fiber has a high-melting portion. 18. The improved bonding agent according to item 17 of the patent claim, wherein the high-melting portion is selected from the group consisting of polyamines, polystyrenes, polystyrenes, polyacrylic acid vinegars, and mixtures thereof. According to the stated patent, &i; the improved adhesive of item i 8, wherein the high melting part is polyester. 20. The improved adhesive according to item 18 of the scope of the patent application, wherein the high-melting portion is polypyrifole. ^ According to the improved bonding of item i in the scope of patent application! The low-carbohydrate base further contains an enhancer. 22. The improved bonding agent according to item 21 of the patent application, wherein the enhancer is selected from the group consisting of: titanium dioxide, talc, stone spar, clear edge, carbonic acid, iron oxide, and magnesium oxide. 23. The improved adhesive according to item 21 of the patent application, wherein the reinforcing agent is present in an amount ranging from about 0 to about 0 in the low-melt matrix. Ran 24. The improved binder according to item 21 of the Chinese patent application, wherein the two-component fiber has a high-melting portion. ^ 25. Improved adhesive according to item 24 of the scope of patent application, in which the 21-foot paper ruler Tang uses the Chinese National Standard (CNS1A4 specification (210xiZ97)) 200306213 A8 B8 C8 5 ο 11 5 Ι Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy ο 2, The financial component is selected from the categories including: polyamide, polyester, polyolefin, polypropylene, and mixtures thereof. 26. According to the patent, the improved adhesive according to item 25 of the patent, wherein the high-melting part is polyester. The improved adhesive according to item 25 of the Shen Qing patent, wherein the high-melting portion is a polyolefin. 28. A non-woven fabric comprising a bonding touch and an absorbent. The bonding agent fiber includes a tackifier and a low-melting matrix, and the low-melting matrix is a low-melting polymer fiber and a two-component fiber. Low melting components, or both. 29. The fabric according to item 28 of the patent application for towels, wherein the hybrid fiber is about 5 to 25 weight 0/0 of the fabric. 30. The fabric according to item 28 of the patent application, wherein the absorbent includes: a natural absorbent, a superabsorbent polymer, or both. 311 According to claim 28, the two-component fiber has a high-melting portion. 32. The fabric of claim 31, wherein the high-melting portion is selected from the group consisting of polyamide, polyacetate, polyolefin, poly, and mixtures thereof. 33. According to the scope of application for patent No. 32 # is polyacetic acid. Item of fabric, in which the south molten portion 34. According to the scope of the application for patents, the amount of 32 ounces is divided into paraffins. Item of fabric, in which the financial part 35. According to _Please specifically encircle the fabric of item 28, # is about 0.1 to about 40% by weight of the low-melt matrix per day, _ 22 paper rule ㈣ Use China National Pure Standard (CNS) A4 specification (2 runs 2_97 public power plant 1 200306213) 6. Scope of patent application A8 B8 C8 D8 5 10 15 Printed by the staff of the Intellectual Property Bureau of the Ministry of Economic Affairs 20 Printed by the cooperative The fabric of 28 items, wherein the tackifier is selected from the group consisting of: rosin, rosin esters, terpenes as a matrix, pipexene as a matrix, and a carbohydrate-based compound. 37. According to the patent application series The fabric surrounding item 28, wherein the low-melt polymerized & fiber is mainly a low-melt matrix and the tackifier. 38. The fabric according to item 28 of the claim, wherein the low-melt matrix is selected from the group consisting of The category includes: polyethylene, polypropylene, polyester, or copolyester, or mixtures thereof. 39. The fabric according to item 38 of the scope of the patent application, wherein the polyethylene is selected from the category including: HDPE, MDPE, LDPE, LLDPE , ULDpE, or a combination thereof. 4〇 · According to claim 38, the polyester and the fabric are selected from the group consisting of polybutylene terephthalate (PBT), or polytrimethylene terephthalate. Ester (ρττ), a low-melt copolyester, such as: a copolymer of PET and a comonomer with which it is copolymerized, such as: a suitable diol component 'selected from: 1,4-cyclohexanedimethanol, propylene glycol , Propylene glycol, 1,4-butanediol, 2,2-dimethyl ", propylene glycol, hexanediol, n-hexanediol, 1,4-cyclohexanediol, 1,2 -Cyclohexanedimethanol, 1,3-% hexanedimethanol, and diols containing one or more oxygen atoms in the chain, such as diethylene glycol, triethylene glycol, dipropylene glycol, tripropylene glycol, or A mixture thereof; or one or more diacids other than terephthalic acid, (aliphatic, cycloaliphatic, or aromatic dicarboxylic acid) such as: isophthalic acid, each cyclohexanedicarboxylic acid Acid, 1,3-% hexanedicarboxylic acid, succinic acid, glutaric acid, adipic acid, sebacic acid, 1,12-dodecanedicarboxylic acid, 2,6-naphthalenedicarboxylic acid, dibenzoic acid , Or its meter is too thin China National Wax Standard 23 200306213 VI. Patent application scope 8 8 81 B c DJ mud $, material 5 10 15 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 20 41 · According to the 28th item of the patent scope of the patent, the low外 Outside the matrix contains an adhesion promoter. 42. The fabric of Roots Patent _ item 41, wherein the adhesion promoter is selected from the group consisting of: maleic acid or maleic liver grafted polypox, acrylic copolymer , Or a combination thereof. 43. According to the scope of the patent application, a 42-shaped fabric, wherein the grafted polysmoke contains added maleic acid or maleic liver in the range of about 2.0% by weight of the fitness matrix. · 44. The fabric according to item 4 of the scope of the patent application, wherein the amount of the ethylenic acid · acrylic acid copolymer is in the range of about 1 to about 20 weights of the low-melt matrix. 45. The fabric according to claim 41, wherein the two-component fiber has a high-melting portion. 46. The fabric of item 45 of the patent scope, wherein the high-melting part is a k-type category including: polyamine, polyacetate, olefin, polypropylene, and mixtures thereof. 47. The fabric according to item 46 of the application is polyester. 48. The fabric according to item 46 of the scope of patent application is a polyolefin. 49. The fabric according to item 28 of the patent application also contains a reinforcing agent. 50 · According to the 49th scope of the application for the patent, among which 5 Hainan melting section > where the high melting section / where the low-melt base where the reinforcing agent is 24 tera paper rule iS prepared by the Chinese state iCNS) A4 Lai Grid (210 X 297 labor) 200306213 A8 B8 C8 Subcategories include: Chlorine Dioxide, Talc, Dream Stone, Mingxin, Carbonic Acid Dance, Calcium Oxide, and Magnesium Oxide. 51. The fabric according to item 49 of the scope of patent application, wherein the presence of the reinforcing agent is in the range of about 0.1 to about% by weight of the low-melt matrix. 5 52. The fabric according to item 49 of the application, wherein the two-component fiber has a high-melting portion. 53. The fabric according to item 52 of the application, wherein the high-melting portion is selected from the group consisting of polyamide, poly, poly, polyacrylic acid, and mixtures thereof. 10 54. According to the 53rd item of the scope of the patent application, 镛 仏 * 丄 * fiber, in which the high-melting part is polyacetate. 55. According to item 53 of the scope of application for patents, "bees, wherein the high-melting portion is polyolefin. Printed by the Consumer Property Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs of the People's Republic of China on the 25th paper ruler for the Chinese National Waco Standard (CNSU4 Specification (210x297 & ») '—, 200306213 (I), the representative representative of the case is: No._C None 2.) Brief description of the component representative symbols of this representative map: None If there is a chemical formula in this case, please disclose the best feature of the invention. Page 2-2