Claims (24)
一種不織布，其係利用熱熔接部固定包含長纖維之網者，且具備：上述長纖維之一部分斷裂，僅一端部利用上述熱熔接部予以固定，且另一端部側之自由端部變粗大之纖維。
A non-woven fabric in which a web comprising long fibers is fixed by a heat-welding portion, and one of the long fibers is partially broken, and only one end portion is fixed by the heat-sealing portion, and the free end portion on the other end portion is thickened. fiber.
如請求項1之不織布，其中自由端部變粗大之上述纖維之前端纖維徑之增加比率為15%以上。
In the non-woven fabric of claim 1, the increase ratio of the fiber diameter at the front end of the fiber in which the free end portion is coarsened is 15% or more.
如請求項1或2之不織布，其中僅一端部利用上述熱熔接部予以固定之纖維中之自由端部變粗大之上述纖維之比率為20%以上。
In the non-woven fabric of claim 1 or 2, the ratio of the fibers in which the free end portion of the fiber fixed at one end portion by the heat-fusible portion is coarsened is 20% or more.
如請求項1或2之不織布，其於上述熱熔接部之間具有立起為環狀之環狀之纖維，該環狀之纖維及僅一端部利用上述熱熔接部予以固定之纖維之總數中該環狀之纖維之比率小於50%。
The non-woven fabric of claim 1 or 2, wherein the heat-fusible portion has a ring-shaped annular fiber, and the annular fiber and the total number of fibers fixed at one end by the heat-welding portion are The ratio of the looped fibers is less than 50%.
如請求項1或2之不織布，其中構成上述不織布之纖維之纖維徑之分散度為0.33~100。
The non-woven fabric of claim 1 or 2, wherein the fibers constituting the non-woven fabric have a fiber diameter of 0.33 to 100.
如請求項1或2之不織布，其中上述不織布原本係基於紡黏不織布、或紡黏層與熔噴層之積層不織布所形成。
The non-woven fabric of claim 1 or 2, wherein the nonwoven fabric is originally formed based on a spunbonded nonwoven fabric or a laminated nonwoven fabric of a spunbond layer and a meltblown layer.
如請求項6之不織布，其中上述紡黏不織布、或紡黏層與熔噴層之上述積層不織布包含含有5重量%以上之乙烯-丙烯共聚物樹脂、或25重量%以上之再生聚丙烯樹脂之聚丙烯樹脂。
The non-woven fabric of claim 6, wherein the above-mentioned spunbonded nonwoven fabric or the laminated nonwoven fabric of the spunbonded layer and the meltblown layer contains 5% by weight or more of an ethylene-propylene copolymer resin or 25% by weight or more of a recycled polypropylene resin. Polypropylene resin.
如請求項6之不織布，其中上述紡黏不織布係含有柔軟劑者。
The non-woven fabric of claim 6, wherein the spunbond nonwoven fabric contains a softening agent.
如請求項6之不織布，其中上述不織布原本係基於紡黏層與熔噴層之上述積層不織布所形成，該積層不織布之該紡黏層包含複數層，並且具備上述長纖維之一部分斷裂，僅一端部利用上述熱熔接部予以固定，且另一端部側之自由端部變粗大之纖維的紡黏層係含有柔軟劑者。
The non-woven fabric of claim 6, wherein the non-woven fabric is originally formed based on the laminated non-woven fabric of the spunbond layer and the meltblown layer, the spunbond layer of the laminated non-woven fabric comprises a plurality of layers, and one of the long fibers is partially broken, only one end The spunbond layer of the fiber which is fixed by the heat-sealing portion and the free end portion of the other end portion is thickened contains a softening agent.
如請求項1或2之不織布，其中微小荷重時之壓縮特性值為18.0(gf/cm2
)/mm以下，CD方向之斷裂強度之值為5.00N/5cm以上，單位面積重量為5~25g/m2
。If the non-woven fabric of claim 1 or 2, the compression characteristic value at the time of the minute load is 18.0 (gf/cm2)
Below /mm, the value of the breaking strength in the CD direction is 5.00 N/5 cm or more, and the weight per unit area is 5 to 25 g/m 2
.
如請求項1或2之不織布，其中起毛纖維之平均纖維徑小於同一面之未起毛部位之表面纖維之平均纖維徑。
The non-woven fabric of claim 1 or 2, wherein the average fiber diameter of the raised fibers is smaller than the average fiber diameter of the surface fibers of the uncovered portion of the same side.
如請求項1或2之不織布，其中起毛纖維為8根/cm以上，且起毛纖維之高度為1.5mm以下。
The non-woven fabric of claim 1 or 2, wherein the raised fibers are 8 pieces/cm or more, and the height of the raised fibers is 1.5 mm or less.
如請求項1或2之不織布，其中上述長纖維之一部分之斷裂係於上述熱熔接部之周邊部。
The non-woven fabric of claim 1 or 2, wherein the break of one of the long fibers is at a peripheral portion of the heat-fusible portion.
一種不織布，其係原本係基於紡黏不織布、或紡黏層與熔噴層之積層不織布所形成者，並且微小荷重時之壓縮特性值為18.0(gf/cm2
)/mm以下，CD方向之斷裂強度之值為5.00N/5cm以上，單位面積重量為5~25g/m2
。A non-woven fabric, which is originally formed based on a spunbonded non-woven fabric, or a laminated non-woven fabric of a spunbonded layer and a meltblown layer, and has a compression characteristic value of 18.0 (gf/cm2) at a minute load.
Below /mm, the value of the breaking strength in the CD direction is 5.00 N/5 cm or more, and the weight per unit area is 5 to 25 g/m 2
.
一種吸收性物品，其係將請求項1或14之不織布用作構成構件。
An absorbent article which uses the nonwoven fabric of claim 1 or 14 as a constituent member.
一種不織布之製造方法，其係於50℃以下之溫度下分別對不織布之複數處實施部分延伸加工，再對該經部分延
伸加工之不織布實施使該不織布之構成纖維起毛之起毛加工。
A method for manufacturing a non-woven fabric, which is subjected to partial extension processing on a plurality of non-woven fabrics at a temperature below 50 ° C, and then partially extended
The non-woven fabric that has been stretched is subjected to a raising process for raising the constituent fibers of the nonwoven fabric.
如請求項16之不織布之製造方法，其中上述部分延伸加工係將上述不織布之上述複數處分別以1.05~20倍之機械延伸倍率進行延伸。
The non-woven fabric manufacturing method according to claim 16, wherein the partial extension processing extends the plurality of the nonwoven fabrics at a mechanical stretching ratio of 1.05 to 20 times.
如請求項16或17之不織布之製造方法，其係藉由上述部分延伸加工，向搬送方向及與搬送方向正交之方向分別對上述不織布之上述複數處實施延伸加工。
The manufacturing method of the non-woven fabric of claim 16 or 17, wherein the stretching process is performed on the plurality of the nonwoven fabrics in the transport direction and the direction orthogonal to the transport direction by the partial extension processing.
如請求項16或17之不織布之製造方法，其中上述部分延伸加工係使用一對凹凸輥而進行；一個輥於周面上具有複數個凸部，另一個輥於周面上之與上述一個輥之上述凸部對應之位置具有該凸部可進入之凹部；將上述不織布供給於一對上述凹凸輥間，而對該不織布實施上述部分延伸加工。
A non-woven fabric manufacturing method according to claim 16 or 17, wherein said partial extension processing is performed using a pair of embossing rolls; one roller has a plurality of convex portions on the circumferential surface, and the other roller has a plurality of convex portions on the circumferential surface The position corresponding to the convex portion has a concave portion into which the convex portion can enter, and the non-woven fabric is supplied between the pair of the uneven rollers, and the partial stretch processing is performed on the nonwoven fabric.
如請求項19之不織布之製造方法，其中一對上述凹凸輥係對相對於所供給之上述不織布之總面積為10%~80%之部分實施上述部分延伸加工。
The non-woven fabric manufacturing method according to claim 19, wherein the pair of embossing roller pairs are subjected to the partial extension processing in a portion of 10% to 80% with respect to the total area of the supplied nonwoven fabric.
如請求項19之不織布之製造方法，其中將上述不織布供給於一對上述凹凸輥之間時之供給速度V1與一對上述凹凸輥之圓周速度V2之關係設為V1>V2。
The manufacturing method of the non-woven fabric of claim 19, wherein the relationship between the supply speed V1 when the non-woven fabric is supplied between the pair of the uneven rollers and the peripheral speed V2 of the pair of the uneven rollers is V1 > V2.
如請求項16或17之不織布之製造方法，其中上述起毛加工係使用周面具有複數個凸部之凸輥而進行；使上述凸輥之旋轉方向相對於上述不織布之搬送方向
為反方向而進行旋轉；將上述經實施部分延伸加工之不織布之搬送速度V3與上述凸輥之圓周速度V4之關係設為V4/V3=0.3~10。
The manufacturing method of the non-woven fabric of claim 16 or 17, wherein the raising process is performed using a convex roller having a plurality of convex portions on a circumferential surface; and a direction of rotation of the convex roller relative to a conveying direction of the non-woven fabric
Rotation is performed in the reverse direction; the relationship between the transport speed V3 of the non-woven fabric subjected to the extension processing described above and the peripheral speed V4 of the convex roller is V4/V3 = 0.3 to 10.
如請求項16或17之不織布之製造方法，其中上述不織布之總延伸倍率為1.3~4.0倍。
The manufacturing method of the non-woven fabric of claim 16 or 17, wherein the total stretch ratio of the non-woven fabric is 1.3 to 4.0 times.
如請求項16或17之不織布之製造方法，其中原本之上述不織布具備於平面方向上規則地分散之熱壓接部，上述熱壓接部之間距與一對上述凹凸輥之上述凸部之間距之比(熱壓接部之間距/凸部之間距)為0.05~0.7。
The non-woven fabric manufacturing method according to claim 16 or 17, wherein the non-woven fabric is provided with a thermocompression-bonding portion which is regularly dispersed in a plane direction, and a distance between the thermo-compression bonding portion and the convex portion of the pair of the uneven roller The ratio (the distance between the thermocompression bonding portions / the distance between the convex portions) is 0.05 to 0.7.