M353210 八、新型說明： 【新型所屬之技術領域】 、本新型是㈣於-種彈性不織布，特別是指—種 以淋膜方式所形成的彈性層的彈性不織布。 一 【先前技術】 > ，、=以彈性層與不織布基材結合所製成的彈性不織布 通常疋將預先加工完成的不織I 離的❹Μ '或的不織布基材與預先製成薄臈型M353210 VIII. New description: [New technical field] The new type is (4) elastic non-woven fabric, especially the elastic non-woven fabric of elastic layer formed by lamination. [Prior Art] >, = an elastic nonwoven fabric made by combining an elastic layer and a non-woven fabric substrate, usually a non-woven fabric or a non-woven fabric substrate which has been pre-processed and pre-formed into a thin type
二的彈性層，利用貼合方式再將不織布基材與彈 在一起。 胃《 口 能將=1為非熱可塑彈性材料製成時，需使用黏膠才 , '、不織布基材黏合。而使用黏膠貼合不僅增加 黏膠材料成本的支出，人 曰 出貼β後的彈性層與不織布基材也容 易因為黏膠分布不均勻或者貼合不完全而剝離。 另外’若彈性層以熱可塑彈性體製成時，例如中華民 發月專利Α σ號第1282381號揭露—種彈性不織布之製造 :I利用熱塑性彈性體製成薄膜再與不織布基材熱 壓，口以形成彈性不織布。此製法雖可省去黏膠的使用， 疋仍需先將熱塑性彈性體製成薄膜，亦即，仍需先分別 形成彈性層與不織布基材，再將兩者以熱墨方式貼合，屬 合即具有壓點，斗^•旦立Α 一 奋易產生剝離，此外製造程序還是很繁 瑣而且也而要較長的生產時間。 【新型内容】 因此本新型之目的，即在提供一種結合強度較佳而 且生產速率較快的彈性不織布。 M353210 織布’包含：-不織布基材及至 淋膜被覆於該不織布基材之一侧 於是’本新型彈性不 少一以熱可塑彈性體直接 面所形成之彈性層。 該彈性不織布可以包含口 匕3 /、在該不織布基材之一側面形 成之一彈性層，或可包含 μ在該不織布基材之 成之二彈性層。 & 其中’該熱可塑彈性體句杯#7 括本乙烯系彈性體、聚烯烴The elastic layer of the second layer is used to bond the non-woven substrate together with the bonding method. When the stomach can be made of non-thermoplastic elastic material, it is necessary to use glue, ', the non-woven substrate is bonded. The use of adhesive bonding not only increases the cost of the adhesive material, but also the elastic layer and the non-woven substrate after the application of the β is easily peeled off due to uneven distribution of the adhesive or incomplete bonding. In addition, if the elastic layer is made of a thermoplastic elastomer, for example, the Chinese Unexamined Patent Publication No. 1,282,381 discloses the manufacture of an elastic nonwoven fabric: I use a thermoplastic elastomer to form a film and then heat-press the non-woven substrate. The mouth is formed into an elastic non-woven fabric. Although the method can eliminate the use of the adhesive, the thermoplastic elastomer needs to be first formed into a film, that is, the elastic layer and the non-woven substrate are separately formed first, and then the two are attached by hot ink. The combination has a pressure point, the bucket ^•丹立Α Yifen is easy to produce the peeling, in addition, the manufacturing process is still very cumbersome and also requires a long production time. [New content] Therefore, the object of the present invention is to provide an elastic nonwoven fabric having a better bonding strength and a faster production rate. The M353210 woven fabric' comprises: a non-woven substrate and a coating coated on one side of the nonwoven substrate. The present invention is not less elastic than an elastic layer formed directly on the thermoplastic elastomer. The elastic nonwoven fabric may comprise an opening 3/, an elastic layer formed on one side of the nonwoven substrate, or may comprise two elastic layers of the nonwoven substrate. & wherein 'the thermoplastic elastomer body cup #7 includes the vinyl elastomer, polyolefin
系彈性體、聚醋系彈性體及聚胺醋系彈性體。 適用於本新型之彈性層厚度以介於5_35_較佳。 適用於本新型之不織布基材以藉由梳棉方式製成的梳 棉網層且具有可伸縮性者較佳，可伸縮性係指該不織布基 材的縱向（MD方向）與橫向（CD方向）的強力比刪cd 不小於2。若以疏棉方式直接製成而未進行後加工，則該不 織布基材可具有橫向的伸縮性，若藉由後加工例如以切 气再加彳進一步使該不織布基材具有縱向伸縮性 或具有橫向及縱向之雙向伸縮性。該不織布基材的基重以 介於5-75g/m2較佳。 本新型的彈性不織布可防水、透氣，並可應用於個人 衛生用品如紙尿褲、衛生棉或護墊之包裝材、防水材或防 水透氣材，紙尿褲的褲圍及腰圍，口罩的耳帶，例如繃帶 之類的醫療用彈性包覆材料等。 本新型彈性不織布之彈性層是以熱可塑性彈性體直接 淋膜被覆於不織布基材所形成，不需要先形成薄膜再貼合 ，能與不織布基材具有良好的結合性，而且能大幅提昇生 M353210 產速率。 【實施方式】 有關本新型之前述及其他技術内容、特點與功效，在 、下配α參考圖式之—較佳實施例的詳細說明中，將可清 楚的呈現。 ' 4閱圖1與_ 2，說明本新型冑性不織布之一較佳實施 例。彈性不織布1包含-不織布基材11及-以熱可塑彈性 體直接淋膜被覆於該錢布基材11之-側面所形成之彈性 層12。在本實施中僅以含有—層的彈性層12為例說明，但 是彈性不織布1亦可依據使用需求在不織布基材U的兩侧 皆淋覆有彈性層12。 在本實施例中，不織布基材u Μ梳棉方式形成的疏 棉網層’其縱向與橫向的強力比MD/CD約為2，具有橫向 可伸縮性’其所使用的纖維材質為聚乙烯/聚丙烯（ΡΕ/ΡΡ) 心輔型複合纖維，不織布基材11的基重A 18g/m2。熱可塑 14 # |± ^ ^ ^ ^ ^ 1. ψ s$. g| (Thermoplastic polyurethane > TPU)。由於不織布基材u種類繁多，且熱可塑性彈性體的 種類也很多樣，在此僅舉—例說明，不織布基材丨丨及熱可 塑性彈性體的種類可依據實際需求選用，並*以本實施例 為限。 製作彈性不織_ 1時’先形成纖維網層的不織布基材 11後，再將熱可塑性彈性體熔融後，直接淋膜被覆於不織 布基材11表面，淋膜厚度約為15μιη，待熱可塑性彈性體 固化後即在不織布基材u上形成彈性層12。以直接淋膜方 M353210 a式形成彈性層12,相較於一般以黏膠貼合的製程，除了可 節省黏膠的材料成本及點膠設備成本的支出之外，還可具 有較佳的結合強度，避免彈性層12與不織布基材u剝離了 此外，相較於一般以熱壓貼合的製程，可省去預先形成薄 膜的步驟，以及免去將薄膜與不織布基材對位再壓合的麻 須。 藉由彈性層12可使彈性不織布1在垂直布面的方向（ :1所不之y方向）亦可具有彈性，且能增進彈性不織布i =行布面方向（圖i所示之x方向）的伸縮彈性，而且 還使彈性不織布1具有防太 丹有防水且透軋的功能。本新型的彈性 不〇布1可應用於個人衛生用品如紙尿褲、衛生棉或護塾 之匕裝材、防水材或防水透氣材，紙尿褲的褲圍及腰圍、 口罩的耳帶、例如端帶之類㈣療用彈性包覆材料等。 2上所述’本新型彈性不織布i具有輯財式直接 被覆於不織布基材n所形成 ^ . 坪f生層12，不需要先形成薄 膜再貼合，能與不織布基材 m β 具有良好的結合性，而且能 大11½¼昇生產速率。It is an elastomer, a polyester elastomer, and a polyurethane foam. The thickness of the elastic layer suitable for the present invention is preferably between 5 mm and 35 mm. The non-woven fabric substrate suitable for the present invention is preferably a carding web layer made by carding and has flexibility. The stretchability refers to the longitudinal direction (MD direction) and the transverse direction (CD direction) of the nonwoven fabric substrate. The strength of the cd is not less than 2. The nonwoven fabric substrate may have lateral stretchability if it is directly formed by a cotton-slurry method, and the nonwoven fabric substrate may be further stretched or stretched by post-processing, for example, by gas-cutting. Bidirectional flexibility in both horizontal and vertical directions. The basis weight of the nonwoven substrate is preferably from 5 to 75 g/m2. The elastic non-woven fabric of the present invention can be waterproof and breathable, and can be applied to packaging materials for personal hygiene products such as diapers, sanitary napkins or pads, waterproof materials or waterproof breathable materials, pants and waistbands of diapers, ear straps of masks, such as bandages. Medical elastic covering materials and the like. The elastic layer of the novel elastic non-woven fabric is formed by directly coating the thermoplastic substrate with the non-woven fabric substrate, and does not need to form a film to be laminated, and can have good bonding with the non-woven fabric substrate, and can greatly enhance the growth of M353210. Production rate. [Embodiment] The foregoing and other technical contents, features, and advantages of the present invention will be apparent from the detailed description of the preferred embodiments of the accompanying drawings. '4' Fig. 1 and _ 2 show a preferred embodiment of the present novel non-woven fabric. The elastic nonwoven fabric 1 comprises a non-woven substrate 11 and an elastic layer 12 formed by coating a side surface of the kraft substrate 11 with a thermoplastic coating directly. In the present embodiment, only the elastic layer 12 containing the layer is exemplified, but the elastic nonwoven fabric 1 may be coated with the elastic layer 12 on both sides of the nonwoven fabric substrate U depending on the use requirements. In the present embodiment, the nonwoven fabric layer formed by the non-woven substrate u Μ carding method has a longitudinal/horizontal strength ratio MD/CD of about 2, and has lateral scalability. The fiber material used is polyethylene. /Polypropylene (ΡΕ/ΡΡ) Heart-assisted composite fiber, the basis weight of the nonwoven substrate 11 is 18 g/m2. Thermoplastic 14 # |± ^ ^ ^ ^ ^ 1. ψ s$. g| (Thermoplastic polyurethane > TPU). Since there are many types of non-woven substrate u, and the types of thermoplastic elastomers are also various, only the examples show that the types of non-woven substrate 丨丨 and thermoplastic elastomer can be selected according to actual needs, and The example is limited. When the elastic non-woven _ 1 is made, the non-woven fabric substrate 11 of the fiber web layer is formed first, and then the thermoplastic elastomer is melted, and then directly coated on the surface of the non-woven fabric substrate 11 to have a thickness of about 15 μm, to be thermoplastic. After the elastomer is cured, the elastic layer 12 is formed on the nonwoven substrate u. The elastic layer 12 is formed by the direct laminating method M353210 a. Compared with the general adhesive bonding process, in addition to the material cost of the adhesive and the cost of the dispensing equipment, a better combination can be obtained. The strength prevents the elastic layer 12 from being peeled off from the non-woven substrate u. In addition, the step of pre-forming the film can be omitted, and the film is prevented from being aligned with the non-woven substrate. Hemp. By the elastic layer 12, the elastic nonwoven fabric 1 can also have elasticity in the direction of the vertical cloth surface (: 1 in the y direction), and can enhance the elastic nonwoven fabric i = the direction of the cloth surface (the x direction shown in Fig. i) The elastic elasticity of the elastic nonwoven fabric 1 also has the function of waterproofing and rolling through the anti-Tai Dan. The elastic non-woven fabric 1 of the present invention can be applied to personal hygiene products such as diapers, sanitary napkins or shackles, waterproof materials or waterproof breathable materials, trousers and waistbands, waistbands of masks, such as end belts. Class (4) therapeutic elastic covering materials, etc. 2 The above-mentioned elastic non-woven fabric i has a wealthy type directly coated on the non-woven fabric substrate n. The flat-foil layer 12 does not need to be formed into a film first, and can have a good relationship with the non-woven substrate mβ. Combining, and can produce a production rate of 111⁄21⁄4 liters.
准以上所述者，僅為本新型之b AThe above mentioned, only the b A of the present invention
At 令啊型之較佳實施例而已，當不 月fc*以此限定本新型實施之範 ^ #固即大凡依本新型申諸糞剎 範圍及新型說明内容所作之簡 H B單的等效變化與修飾，皆仍 屬本新型專利涵蓋之範圍内。 【圖式簡單說明】 圖1是-示意圖，說明本新型 施例；及 早乂佳貝 M353210 圖2是一圖1的側視示意圖，說明該較佳實施例。 M353210 【主要元件符號說明】 彈性層 I ..........彈性不織布 12 II .........不織布基材At the same time, the preferred embodiment of the ah type, when the month fc* is used to limit the implementation of the new type of implementation, the equivalent change of the simple HB list according to the new application of the fecal brake range and the new description content And modifications are still within the scope of this new patent. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing the novel embodiment; and FIG. 2 is a side view of FIG. 1 illustrating the preferred embodiment. M353210 [Description of main component symbols] Elastic layer I ..........elastic non-woven fabric 12 II .........non-woven fabric substrate