JP4243111B2 - Post-treatment tape and disposable diapers - Google Patents

Description

【００２４】
また、本実施の形態にかかる後処理テープ（実施例）と比較例（即ち、従来品）とにおける第１展開部の接着強度（１８０°剥離）試験結果を表２に示す。
【００２５】
【表２】

【００２６】
上記結果によれば、前記軽剥離処理剤における接着強度を、１８０ｇ〜２５０ｇの範囲に設定するのが望ましく、そのようにした場合、実施例の展開性は、比較例の約７５％にまで落とせることとなっており、不用意に剥離することがなくなるとともに、展開時における第１展開部２の剥離に要する力を必要最小限とすることができる。
【００２７】
なお、この後処理テープは、使い捨ておむつ以外の吸収性物品にも適用可能である。
【発明の効果】
【００２８】
本願発明によれば、被処理物に粘着剤を介して接着された固定部と、該固定部に連結され且つ前記固定部の表面に対して粘着剤を介して接着された第１展開部と、該第１展開部に連結され且つ前記第１展開部の表面に対して粘着剤を介して接着された第２展開部と、該第２展開部の先端に設けられた摘まみ部とからなる後処理テープにおいて、前記固定部、前記第１展開部および前記第２展開部を、いずれもポリプロピレンにより構成し、前記後処理テープの摘まみ部を有する一端側において前記固定部は折り返されて前記第１展開部に接着される第１接続部を有する一方、他端側において前記第１展開部は折り返されて前記第２展開部に接着される第２接続部を有しており、前記第１展開部は前記第１接続部よりも前記後処理テープの前記一端側に延設され、前記第２展開部は前記第２接続部より も前記後処理テープの前記他端側に延設されて前記固定部の表面に対して粘着剤を介して接着されていて、前記固定部と前記第１展開部とを接着する粘着剤および前記第１展開部と前記第２展開部とを接着する粘着剤として同一の粘着剤を用いるとともに、前記固定部の表面と前記第１展開部の表面とには、それぞれ異なる剥離処理剤を塗布することにより、前記固定部の表面からの前記第１展開部の剥離を、前記第１展開部の表面からの前記第２展開部の剥離よりも軽くして、第１展開部を固定部から剥離させるに要する力（換言すれば、第１展開部と固定部との接着力）が小さくなるようにしたので、第１展開部の展開途中に固定部が剥離してしまうということがなくなるという効果がある。しかも、第１展開部の表面に、前記固定部の表面に塗布された剥離処理剤より剥離が難しい中剥離処理剤を塗布しているため、第１展開部が不用意に剥離するということもなくなるという効果もある。
【００２９】
また、上記後処理テープを使い捨ておむつの後処理用として用いた場合、使い捨ておむつの後処理がかさばることなく容易に行える。
【図面の簡単な説明】
【図１】 本願発明の実施の形態にかかる後処理テープを備えた使い捨ておむつの正面図である。
【図２】 本願発明の実施の形態にかかる後処理テープの拡大断面図（図１のＩＩ−ＩＩ断面図）である。
【図３】 本願発明の実施の形態にかかる後処理テープの展開時の状態を示す拡大断面図である。
【図４】 後処理テープの使用状態を示す斜視図である。
【符号の説明】
１は固定部、１ａは第１接続部、２は第１展開部、２ａは第２接続部、３は第２展開部、４は摘まみ部、１１はトップシート、１２はバックシート、１３は吸収体、Ａは被処理物（使い捨ておむつ）、Ｔは後処理テープ、Ｋは股、Ｗはウエスト。[0001]
BACKGROUND OF THE INVENTION
[0002]
The present invention relates to a post-processing tape and a disposable diaper.
[Prior art]
[0003]
As a post-processing tape used when rounding and processing a used disposable diaper or the like, a tape that is folded in triplicate and configured in a Z shape has been well known (see, for example, Patent Document 1). .
[0004]
As shown in FIG. 2, the post-processing tape T having the above configuration includes a fixing portion 1 bonded to a back sheet of an object to be processed (for example, a disposable diaper A) via an adhesive B, and one end of the fixing portion 1. The first unfolded portion 2 connected to the first connecting portion 1a folded back and bonded to the surface of the fixed portion 1 via the adhesive B, and folded at one end of the first unfolded portion 2 a second expansion part 3, which is bonded via an adhesive B with respect to the front surface of coupled and the first expansion unit 2 to the second connecting portions 2a, hysterectomy provided at the distal end of the second expansion section 3 It consists of a mami part 4.
[0005]
And this post-processing tape T lifts the knob | pick part 4 in the direction of arrow P, peels off the 2nd and 1st expansion | deployment parts 2 and 3, and expands, as shown in FIG. By adhering the 2nd expansion | deployment part 3 to the crotch K side, it acts so that the disposable diaper A can be hold | maintained in the rolled state. In this way, the disposable diaper A can be easily processed without being bulky.
[0006]
In the case of the conventional post-processing tape T having the above configuration, the crotch side end portion of the second development portion is made to coincide with the end portion of the second adhesive portion. With such a structure, the adhesive force of the second development portion becomes insufficient, and the second development portion may be peeled off during the manufacturing process or physical distribution. Therefore, as shown in FIG. 2, the extending portion 2 b formed by extending the end portion of the first expanding portion 2 on the waist W side is bonded to the object to be processed (for example, the back sheet 12), and the second expanding portion 3, the extended portion 3 b formed by extending the crotch K side is bonded to the fixed portion 1, so that the post-processing tape T is attached to the back sheet 12 on the waist W side and the crotch K side Attempts have been made to support the point and prevent inadvertent peeling of the post-processing tape T (see Patent Document 1).
[0007]
[Patent Document 1]
JP2001-258938.
[Problems to be solved by the invention]
[0008]
When comprised as mentioned above, the amount of glue which has adhered the 2nd deployment part 3 becomes larger than the amount of glue which has adhered the 1st development part 2. That is, the 1st expansion | deployment part 2 becomes a structure which is hard to peel.
[0009]
In the case of a conventional post-processing tape, the first development portion is not structured to be easily peeled off, so the surface of the fixing portion 1 and the surface of the first development portion 2 are the same (that is, can be peeled with the same force). Even if the treatment agent was applied, there was no problem. For example, a medium release treatment agent (that is, a treatment agent having an adhesive strength of 250 g or more) was applied.
[0010]
However, as described above, when the crotch K side of the second development part 3 is extended and adhered to the fixing part 1, the second development part 3 is adhered to the fixing part 1, When the intermediate peeling treatment agent is applied to the surface of the first developing part 2, the first developing part 2 and the fixing part 1 are difficult to peel off, and the fixing part 1 peels off during the development of the first developing part 2. There is a fear.
[0011]
The present invention has been made in view of the above points, and an object of the present invention is to make it possible to minimize the force required for deployment without causing inadvertent peeling.
[Means for Solving the Problems]
[0012]
In the present invention, as means for solving the above problems, through a fixing portion which is bonded via an adhesive to the object to be treated, the adhesive against linked and the surface of the fixing part to the fixed part A first development portion that is bonded, a second development portion that is connected to the first development portion and is bonded to the surface of the first development portion via an adhesive, and a tip of the second development portion. In the post-processing tape comprising the knob portion provided, the fixing portion, the first developing portion, and the second developing portion are all made of polypropylene, and one end side having the knob portion of the post-processing tape. The fixed portion has a first connection portion that is folded back and bonded to the first deployment portion, while the first connection portion is folded and bonded to the second deployment portion on the other end side. And the first deploying portion is the first contact portion. Extending to the one end side of the post-processing tape from the portion, and the second development portion is extended to the other end side of the post-processing tape from the second connection portion to the surface of the fixing portion. The same adhesive as the adhesive that adheres the fixed part and the first development part and the adhesive that adheres the first development part and the second development part. In addition, by applying different release treatment agents to the surface of the fixed part and the surface of the first developed part, the first developed part is peeled off from the surface of the fixed part. It is lighter than the peeling of the second development part from the surface of the part.
[0013]
By configuring as described above, the post-treatment tape is completely unfolded by peeling the second unfolding portion from the first unfolding portion with the knob and then peeling the second unfolding portion from the fixed portion. The same adhesive is used as an adhesive that adheres the fixing part and the first development part and an adhesive that adheres the first development part and the second development part, and the surface of the fixing part and the By applying different release treatment agents to the surface of the first development part, the separation of the first development part from the surface of the fixed part is caused to cause the second development part from the surface of the first development part. The force required to peel the first deploying portion from the fixed portion (in other words, the adhesive force between the first deploying portion and the fixing portion) is reduced and the first deploying portion is unfolded. The fixed part will not be peeled off in the middle. In addition, since the middle release treatment agent, which is more difficult to remove than the release treatment agent applied to the surface of the fixed portion, is applied to the surface of the first development portion, the first development portion may be carelessly peeled off. Disappear.
[0014]
Moreover, when the said post-processing tape is used for the post-processing of a disposable diaper, the post-processing of a disposable diaper can be easily performed without being bulky.
DETAILED DESCRIPTION OF THE INVENTION
[0015]
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
[0016]
This post-processing tape T is used for post-processing of the disposable diaper A as shown in FIG.
[0017]
The disposable diaper A includes a liquid-permeable top sheet 11, a liquid-impermeable back sheet 12, and an absorbent body 13 interposed between the back sheet 12 and the top sheet 11. ing.
[0018]
The post-processing tape T is attached to an appropriate position on the back sheet 12 of the disposable diaper A that is an object to be processed (for example, a position that is the central portion in the left-right direction at the time of rear view and close to the waist W) A fixing portion 1 that is bonded to the sheet 12 via an adhesive B and extends from the waist W side toward the crotch K side, and is connected to a first connection portion 1a that is folded back at one end of the fixing portion 1 on the waist W side; The first unfolded portion 2 bonded to the surface of the fixed portion 1 via the adhesive B, and the second unfolded portion 2 connected to the second connecting portion 2a folded at one end of the first unfolded portion 2 on the crotch K side, and It is comprised by the 2nd expansion | deployment part 3 adhere | attached through the adhesive B with respect to the surface of the 1st expansion | deployment part 2, and the knob | pick part 4 provided in the front-end | tip of this 2nd expansion | deployment part 3. FIG. And in this Embodiment, the extension part 2b formed by extending this edge part by a predetermined dimension toward the waist W side at the edge part by the side of the waist W of the said 1st expansion | deployment part 2 is provided. The extending portion 2b is bonded to the back sheet 12 via an adhesive B. Further, an extended portion 3a is formed at the end portion of the second developing portion 3 on the crotch K side so as to integrally extend the end portion toward the crotch K side by a predetermined dimension. The installation portion 3 a is bonded to the surface of the fixed portion 1 via an adhesive B. The reason for this is to make the tape rising point a position near the center of the non-woven fabric bonding portion (in other words, the bonding portion to the back sheet 12) so as to be dispersed at two points.
[0019]
As described above, the post-treatment tape T is lifted in the direction of the arrow P, peeled off the second and first unfolded portions 2 and 3, and unrolled to the crotch K side of the rolled disposable diaper A. By adhering the 2nd expansion | deployment part 3, it acts so that the disposable diaper A can be hold | maintained in the rounded state (refer FIG. 4). In this way, the disposable diaper A can be easily processed without being bulky.
[0020]
In the present embodiment, a light release treatment agent that can be peeled off with a lighter force than a medium release treatment agent applied to the surface of the first development portion 2 is applied to the surface of the fixed portion 1.
[0021]
By having comprised as mentioned above, the post-processing tape is obtained by peeling the second developing part 3 from the first developing part 2 with the knob part 4 and then peeling the second developing part 2 from the fixing part 1. Although A is completely developed, a light release treatment agent that can be peeled off with a lighter force than a medium release treatment agent applied to the surface of the first development portion 2 is applied to the surface of the fixed portion 1. The force (in other words, the adhesive force between the first developing part 2 and the fixing part 1) required for peeling the developing part 2 from the fixing part 1 is reduced, and the fixing part 1 is peeled off during the development of the first developing part 2. It wo n’t happen. In addition, since the intermediate release treatment agent is applied to the surface of the first development part 2, the first development part 3 is not inadvertently exfoliated.
[0022]
The specifications of each part in the post-processing tape having the above configuration are as shown in Table 1 below.
[0023]
[Table 1]

[0024]
Table 2 shows the adhesion strength (180 ° peel) test results of the first developed portion in the post-processing tape (Example) and the comparative example (ie, the conventional product) according to the present embodiment.
[0025]
[Table 2]

[0026]
According to the above result, it is desirable to set the adhesive strength in the light release treatment agent in the range of 180 g to 250 g. In such a case, the developability of the example can be reduced to about 75% of the comparative example. Thus, it is possible to prevent the careless peeling, and to minimize the force required for the peeling of the first developing part 2 during the development.
[0027]
In addition, this post-processing tape is applicable also to absorbent articles other than a disposable diaper.
【The invention's effect】
[0028]
According to the present invention, a fixing portion which is bonded via an adhesive to the object to be processed, a first expansion unit which is bonded through an adhesive to said being connected to the fixed portion and the surface of the fixing part A second unfolding portion connected to the first unfolding portion and bonded to the surface of the first unfolding portion via an adhesive, and a knob provided at the tip of the second unfolding portion. In the post-processing tape, the fixing part, the first developing part, and the second developing part are all made of polypropylene, and the fixing part is folded at one end side having a knob part of the post-processing tape. While having a first connection part bonded to the first development part, the first development part is folded at the other end side and has a second connection part adhered to the second development part, The first development portion is more than the first connection portion of the post-processing tape. Extends in the end side, the second expansion part are bonded via an adhesive to the other end extending to the surface of the fixed portion of the said post-treatment tape than the second connecting portion Te, along with using the same adhesive as an adhesive for bonding the fixed portion and the pressure-sensitive adhesive and the first expansion portion in which the first bonding the expansion portion and the second expansion portion, and the surface of the fixed portion By applying different release treatment agents to the surface of the first development part, the separation of the first development part from the surface of the fixed part is caused to occur in the second part from the surface of the first development part. Since the force required to peel the first developing portion from the fixing portion (in other words, the adhesive force between the first developing portion and the fixing portion) is made lighter than the peeling of the developing portion, the first The fixed part will not peel off during the development of the development part. There is a result. In addition, since the middle release treatment agent, which is more difficult to remove than the release treatment agent applied to the surface of the fixed portion, is applied to the surface of the first development portion, the first development portion may be carelessly peeled off. There is also an effect of disappearing.
[0029]
Moreover, when the said post-processing tape is used for the post-processing of a disposable diaper, the post-processing of a disposable diaper can be easily performed without being bulky.
[Brief description of the drawings]
FIG. 1 is a front view of a disposable diaper provided with a post-processing tape according to an embodiment of the present invention.
FIG. 2 is an enlarged cross-sectional view (II-II cross-sectional view of FIG. 1) of the post-processing tape according to the embodiment of the present invention.
FIG. 3 is an enlarged cross-sectional view showing a state when the post-processing tape according to the embodiment of the present invention is unfolded.
FIG. 4 is a perspective view showing a use state of the post-processing tape.
[Explanation of symbols]
1 is a fixing part, 1a is a first connecting part, 2 is a first developing part, 2a is a second connecting part, 3 is a second developing part, 4 is a knob part, 11 is a top sheet, 12 is a back sheet, 13 Is an absorbent, A is an article to be treated (disposable diaper), T is a post-treatment tape, K is a crotch, and W is a waist.

Claims (2)

A fixing portion which is bonded via an adhesive to the object to be processed, a first expansion unit which is bonded through an adhesive to said being connected to the fixed portion and the surface of the fixing portion, the first expansion portion a post processing tape comprising a second expanded portion which is bonded via an adhesive, a knob portion provided at a distal end of the second expansion unit relative concatenated and the first expansion portion surface of the The fixing portion, the first developing portion, and the second developing portion are all made of polypropylene, and the fixing portion is folded back at one end side having a knob portion of the post-processing tape, so that the first developing portion is folded. A first connection portion that is bonded to the second expansion portion, and a second connection portion that is folded and bonded to the second expansion portion on the other end side, and the first expansion portion is Extending to the one end side of the post-processing tape from the first connection part, 2 expansion unit have been bonded through the adhesive to the other end extending to the surface of the fixed portion of the post-processing tape than said second connecting portion, wherein the fixed portion first While using the same pressure-sensitive adhesive as the pressure-sensitive adhesive that bonds the developing portion and the pressure-sensitive adhesive that bonds the first and second developing portions, the surface of the fixed portion and the surface of the first developing portion are used. In addition, by applying different release treatment agents, the peeling of the first development part from the surface of the fixed part is made lighter than the peeling of the second development part from the surface of the first development part. Features post-processing tape.   A disposable diaper using the post-treatment tape according to claim 1.

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