JPH06133808A - Surface fastener member - Google Patents

Abstract

PURPOSE:To make attachment and detachment smooth and soft and to lessen a crisp feel by studding engaging elements which have a T- or inverted L shape as front surface shapes and have the low height of posts on the male mold surface of the surface fastener at a high density. CONSTITUTION:The many engaging elements 4 consisting of the posts 2 having the T or inverted L shape as the front surface shapes and having the low height and heads 3 having small flat areas are studded like grids on a base material sheet 1. The spacing I between the rear surfaces of the heads 3 and the base material sheet 1 is set at 0.1 to 0.7mm, the projecting length E of the heads 3 at 0.06 to 0.4mm, the thickness D of the head 3 at 0.08 to 0.35mm, the width C of the heads 3 at 0.15 to 0.5mm, the flat area S of the heads 3 at 0.08 to 0.35mm<2>, the transverse spacing between the engaging elements 4 at 0.1 to 0.8mm and the longitudinal spacing therebetween at 0.3 to 1.0mm at this time. As a result, the crisp feel is eliminated and the smooth and soft attachment and detachment are executed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a male molded surface fastener member in a conventional so-called hook / pile type (male / female type) surface fastener, and in particular, its appearance and texture are fine, and the touch feeling and hand feel. The present invention relates to a male molded surface fastener member that has a soft and smooth tactile sensation and a soft and smooth engagement and disengagement sensation.

[0002]

2. Description of the Related Art Conventionally, as a surface fastener, a mechanism in which a tip of an engaging element engages with a loop-shaped engaging element in a hook shape, an umbrella shape, a bulging shape, or the engaging elements are engaged with each other. It is proposed that the engaging element row of the mechanism to be arranged is arranged, and the male type surface fastener is often a woven male type surface fastener in which the filament yarn is looped or the tip is expanded and processed into a mushroom shape. Further, in recent years, male molding surface fasteners made by casting or extruding a resin have been used.

By the way, the former woven male surface fastener has a high element height and a relatively small element head portion (planar area) due to the processing step of processing the hook portion. Since the arrangement is sparse, it has a strong sense of protrusion and is hard. As a result, the fastener has a considerably thick feeling, and when it is rubbed with a hand, it makes a jarring sound, and its feel is also tingling and rough.

Further, the latter molded surface fastener has a coarser element size than that of the former and has a thick feeling due to technical restrictions of the mold and the molding process, and its appearance feel. Has a rough, stiff, and strong plastic feeling, and in particular, its engagement feeling is rough, and it has a poor repeatability with a crunchy sound. Also, the female fastener of the mating partner has a good engaging property with a fastener having a large loop or pile, but the engaging property becomes insufficient for a fastener having a fine thin loop or a pile, so that as a fastener However, there is an inconvenience that it cannot be applied to a field requiring a thin fastener that does not stand out. Further, since this product is thick, it takes a long time to sew the cloth or the like and to weld it, and the attached state thereof is not good at all.

As described above, the conventional male surface fastener is
It is what is expressed by the words rough, rough, and rigid, and its engagement feeling is also poor. Therefore, it has not been sufficient as a fastener for applying it to a field in which it can be integrated with a clothing material and exhibit good skin feel and flexibility.

In order to improve the deficiency of these conventional surface fasteners, JP-A-2-5947 discloses a male surface fastener applicable to disposable underwear or diapers. That is, the surface fastener disclosed in this publication is hard and large as compared with the conventional one, and therefore the protruding key member (hook) may cause discomfort to the user or cause injury. In order to prevent the above, the disclosure is made to put the protruding key member into practical use as a "small size".

However, the idea of the protruding key member disclosed here is that the head of the key member must have a shape that cannot be easily removed by hooking a loop or pile on the other side. It doesn't change at all. That is, here, the head provided on the upper end of the pillar (stem) has a "recessed surface portion 19" in FIG. The idea is to hold the loop hanging under the head more firmly so that it does not come off. As shown in FIG. 2 or FIGS. 3 to 5 of this publication, the lower surface of the head is connected to a support. The angle formed with the pillar on the lower surface of the head at the location (in this specification,
As will be described later, this is referred to as a mounting angle θ of the head with respect to the support column, and this indication will be used hereinafter) is intended to be small, and this angle is 6 at most.
It is about 0 degrees. That is, the idea is that the direction of the tip of the head must be steeply descending in the direction of the surface of the base material sheet on which the columns are standing, and must be in the shape of an arrowhead or a hook.

And, in the case of the engaging element having the hook angle of the acute angle as described above with respect to the support pillar of the head, if it is "small size" as disclosed in the publication, In terms of appearance and texture, and in terms of softness such as touch and feel, they are all unsatisfactory, and, decisively, they still feel crunchy when they are removed. However, it is still insufficient to provide a fastener having a smooth detachable feeling.

Therefore, even if the conventional fastener is applied to the field of clothing, for example, the presence and discomfort of the fastener itself are too conspicuous, and the fastener cannot be used by being matched with the target clothing material. It cannot be applied to the clothing field that requires sensitivity, and can be applied only to the limited clothing field. This means that even in the medical field where presence as fastener, discomfort, crunchiness is disliked, or even in the field of fine orientation,
Further, the same is true in the decorative-oriented fields, and none of them is satisfactory as a connecting member in those fields, and there is a problem that the applicable range of the fastener cannot be expanded.

[0010]

The conventional hook / pile type engaging fasteners are coarse and hard, bulky, and have a feeling of crunching at the time of attachment / detachment. Thus, the object of the present invention is to be thin and supple, and yet to have a small feeling of crunchiness at the time of desorption, and to have a soft peeling feeling as if it was an adhesive tape, and to have a more delicate appearance, texture and smooth and soft touch. Feeling
It is intended to provide a surface fastener member having a feeling of touch.

[0011]

In order to create a novel fastener as described above, which is capable of eliminating the conventional ideas of conventional fasteners, the present inventors have proposed a hook / pile type engaging fastener as a fastener. I examined what it should be. As a result, the present inventor is not sufficient as a fastener for solving the above-mentioned problems by merely reducing the size of the key member as in the above-mentioned published example. It is necessary to have an engagement element and its arrangement state based on a new idea in a direction that denies the idea that it must be a shape that hooks the other side loop or pile and does not easily separate. The present invention has been reached.

The idea of the present invention is that the engagement element is shaped so as to weaken the engagement force with the loop or the pile when compared with the conventional engagement element, and the engagement force of the engagement element alone is The decrease is compensated for by the arrangement (number) of the engaging elements and balanced. The essence of the means for embodying this idea is that the protruding portion of the head mounted on the upper end of the pillar of the engaging element extending to the left and right of the pillar is flat and thin, and the mounting angle of the protruding portion to the pillar is large, Further, the vertical and horizontal gaps of the engaging elements are set to a specific minute gap and arranged.

That is, according to the present invention, an engaging element having a T-shape or an inverted L-shape in front view is composed of a strut and a head having a roof shape which is placed on the upper end of the strut and extends over at least one side of the strut. In the male surface fastener member in which the above is formed on the base material sheet surface in a forested state, the following (a) to
A surface fastener member that satisfies the requirement of (f), (a) the distance (I) between the lower surface of the head and the surface of the base material sheet is 0.
1-0.7 mm (b) Head protrusion length (E) is 0.06-0.4 mm (c) Head thickness (D) is 0.08-0.35 mm (d) Head width (C) Is 0.15 to 0.5 mm (e) The plane area (S) of the head is 0.08 to 0.35 mm
² (f) The horizontal clearance (J) and the vertical clearance (K) between the engaging elements are 0.1 to 0.8 mm and 0.3 to, respectively.
The above object is achieved by configuring "1.0 mm", and more preferably, "(a) to
A surface fastener member characterized by satisfying the following requirements (g) to (h) in addition to the requirement (f): (g) The mounting angle (θ) of the lower surface of the head to the column is 70.
.About.120 degrees (h) The maximum penetration depth from the upper end of the head when the sphere having a diameter of 2.5 mm is brought into contact with the head between the engaging elements is 0.
The above-mentioned object is achieved by the constitution of "2 mm or less".

In the above structure, the engaging element has a head that forms a flat and thin roof shape, has an appropriate width, and has a low height from the surface of the base material sheet. Has a large attachment angle (θ), that is, the head does not have an inclination angle that rapidly drops to the surface of the base material sheet, and the engaging element group is densely planted from the shape of the engaging element. It is necessary to have an element array, which allows the female surface fastener having fine loops and piles or the engaging property with the female member to be sufficiently strong in practical use, but to separate them from each other. At that time, there is little crunchiness, it can be removed smoothly as if the adhesive tape was peeled off, and the female fastener side or female member side is not significantly damaged by repeated detaching operations. It is possible to maintain a sufficient engaging force, and the appearance as a fastener, the texture is fine, and the feeling of smoothness is strong, and it is possible to remove the appearance and texture as a conventional hook and pile type fastener at all. .

The present invention will be described in more detail below with reference to the drawings. FIG. 1 is a partially enlarged external view of a surface fastener element according to the present invention, in which an engaging element 4 composed of a column 2 and a head 3 at its upper end is densely planted on a surface of a base material sheet 1 in a forested state. 2 shows the fastener formed in. Figure 2 (a)
1 is a further enlarged external view of the engagement element 4 in FIG. 1 for explaining the engagement element 4 in more detail, and illustrates a typical engagement element according to the present invention. The space between the lower surface of the head and the surface of the base material (the height of the support column 2) (I) in the engagement element 4 in the specification, the protrusion length (E) of the protrusion 5 of the head extending left and right from the support column, the head The thickness (D) at the central portion of the protrusion 5, the width (C) of the protrusion 5, and the attachment angle (θ) of the head lower surface to the column 2 are shown. See also FIG.
(B) to (e) show another typical modification of the engagement element 4 of the present invention. In FIG. 2 (b), the head of the engagement element has a round upper surface and a flat lower surface. 2 (c) shows the element when the mounting angle (θ) of the head of the element is 90 degrees or more, and FIG. 2 (d) shows the portion of the head of the element with the tip of the protrusion of 30% or less. 3A and 3B show elements each having a slightly protruding shape. It is preferable that the head of the engaging element of the present invention has a shape projecting to both sides from the viewpoint of engaging force, but in the case where directionality and softness are required, FIG.
As shown in (e), the head of the engaging element may have a shape protruding only on one side.

The distance (I) between the lower surface of the head of the engaging element 4 and the surface of the base material must be 0.1 to 0.7 mm. Reducing this height can reduce the overall height of the engaging element 4 together with the thickness (D) of the protruding portion 5 of the head, and as a result, the surface fastener formed with the engaging element 4 can be made thin. It is a direction that can make a smooth surface. However, when the height is less than 0.1 mm,
The insertability of loops or piles, which are the locking pieces of the mating member, deteriorates, and the overall engaging force becomes insufficient. When the height (I) exceeds 0.7 mm, the space for inserting loops and piles becomes large, but the space is excessive, and the space for inserting fasteners is thin, fine, and has a smooth surface. There will be no. More preferably, it is 0.12-0.5 mm.

The length (E) of the protruding portion 5 of the head 3 extending from the column 2 needs to be 0.06 to 0.4 mm. This is because if the length (E) is less than 0.06 mm, the other party's loop or pile is likely to come off and it becomes difficult to stop. If it exceeds 0.4 mm, the loops and piles engaged in the opposite direction will be excessively inserted and will not easily come off, and the space will be excessive and the number of elements will be insufficient. More preferable length is
It is 0.08 to 0.35 mm.

The head 4 may have a protrusion 5 having a substantially uniform thickness as shown in FIG.
Although the tip may have a taper thickness as shown in (b), the thickness (D) of the intermediate portion of the head protrusion 5 is
0.08 to 0.35 mm is preferable. If the thickness is less than 0.08 mm, the engaging element is weak and the engaging force becomes insufficient. However, if the thickness exceeds 0.35 mm, the insertability of fine loops and piles deteriorates, and the repeatability in the case of repeated desorption also deteriorates. A more preferable thickness is 0.1 to 0.3.

Similarly, the width (C) of the head protrusion 5 is preferably 0.15 to 0.5 mm. If it is less than 0.15 mm, the engaging element is weak and the engaging force becomes insufficient. On the other hand, if the width exceeds 0.5 mm, the insertability of fine loops and piles deteriorates, and the locking force per one element increases, so that the engagement is likely to be crunchy.

No matter how flat the head portion is, the filament yarn of a narrow head as in the case of a woven surface fastener or a fine head gives a rough feeling because it does not have a feeling of skin feel and a local feeling. Therefore, the plane area (S) of the head needs to have an area of 0.08 to 0.35 mm ² . Here, the plane area of the head means the area of the shadow when a parallel light beam is projected from above the engaging element (head) onto the hitting surface of the head. If this area is larger than 0.35 mm ² , the head becomes too large, resulting in excessive space and elements. It is preferably 0.1 to 0.32 mm ² .

The present inventors not only configure the engaging element 4 as described above, but also the engaging element is the base sheet 1.
In the above, the density, the element arrangement, the ratio of the element head area to the substrate sheet area, etc. should be sought. It was found that it is essential to make a specific element arrangement on the first example. As mentioned above,
In the present invention, in order to obtain a fastener that can be smoothly attached and detached without a sense of burrs in the engaging property of the fastener, it is possible to make it by making the engaging force weak in the engaging element unit. In that case, in order to make the engaging force as a fastener practically sufficient,
Even if the engaging force is weak in the engaging element unit, in order to cover that point as an aggregate, and also to make a smooth and soft fastener with a tactile sensation such as touch and touch while securing an appropriate engaging force. The effective gap distances (J) and (K) in the horizontal direction and the vertical direction between the engaging elements 4 on the base material sheet 1 are obtained.

FIG. 3 shows the relationship between the engaging elements 4, 4, 4, ... On the base sheet 1 in the horizontal and vertical directions, and accordingly, the horizontal gap (J) and the vertical length as referred to in the present specification. FIG. 7 is an enlarged partial plan view of the fastener, showing the gap interval (K), in which the up-down direction indicates the length direction (longitudinal direction) of the fastener. The engagement elements 4, 4, 4, ... Shown in FIG.
.Mutual lateral clearance (J) and vertical clearance (K)
Are 0.1 to 0.8 mm and 0.3 to 1.0, respectively.
It is important to set to mm. The smooth texture without a feeling of roughness as a zipper in the touch and feel,
Even if the gap distance is 0.1 mm or less, it is good, and the wider the gap, the worse. However, if the gap distance is less than 0.1 mm, the mating loop group is less insertable, which is not preferable for engagement. On the contrary, if the distance exceeds 0.8 mm, not only the touch and smoothness are deteriorated, the appearance and the feel are rough, but also the overall engaging force is deteriorated, which is not preferable. A more preferable lateral gap interval is 0.
It was found to be 2 to 0.7 mm. The same applies to the vertical gap, and it has been found that it is preferably within the above range, and more preferably 0.4 to 0.9 mm.

The interval (J) of the lateral gap is mainly changed by adjusting the gap between the protrusions forming the engaging element of the discharge hole in the die used in the extrusion molding method described later, Further, the interval (K) of the vertical gap is determined mainly by changing the stretch ratio of the discharged molded product.

It has been found that the density of the engaging elements 4 on the base material sheet 1 is preferably in the range of 50 to 400 pieces / cm ² . If it is less than 50 pieces / cm ² , the engaging performance cannot be obtained, and it is not possible to obtain the above-mentioned roughness. On the contrary, even if the density exceeds 400 pieces / cm ² , the insertion engagement gap of the mating loop becomes insufficient and the engagement performance deteriorates, which is not preferable. It has been found that the head area of the engaging element needs to be in the range of 8 to 32%, more preferably 12 to 30% with respect to that of the base material sheet 1.

The engaging element 4 according to the present invention for more effectively achieving the object of the present invention will be described. In the element 4, the mounting angle (θ) of the protrusion 5 of the head 3 with respect to the column 2 is set. Is 70 to 120 degrees. The attachment angle of the protrusion 5 is small only to prevent the loops and piles from being caught and not to be separated from each other.
It is preferred that the head be exactly hooked.
However, if the mounting angle (θ) of the protrusion 5 is small,
At the time of detaching from the hooked loop or pile, since the engagement is strong, there is a sense of crunching, and the mating pile and the engaging element are easily damaged. Therefore, it is impossible to realize a fastener having a strong engaging force without such a crunchy feeling. Therefore, in the engaging element 4 of the present invention, it is important that the mounting angle (θ) of the protruding portion 5 of the head 3 be a large angle as described above.

Although the lateral width (B) of the supporting column 2 on which the head 3 is mounted does not directly affect the above-mentioned object of the present invention in the above-described engaging element, the head receiving a locking force is From the viewpoint of balance, if it is too thin, it becomes brittle, and if it is too thick, it becomes stiff. Therefore, the range of 0.15 to 0.5 mm is preferable, and 0.2 to 0.45 mm is more preferable. In addition, the width (length) of the entire head including the protrusion 5 of the head 3 extending to the left and right of the column 2 including the column width (B)
The range of (A) is preferably 0.3 to 1.1 mm.
If the length is less than this range, a good element head cannot be formed, and if the length exceeds this range, it is too long, and the engaging property is coarse and rough, which is not preferable. A more preferable length is 0.35 to 0.95 mm.

The height (H) of the engaging element 4 is naturally determined by the sum of the distance (post height) (I) between the lower surface of the head and the surface of the base sheet and the thickness (D) of the head. The total height is preferably 0.25 to 0.8 mm. If it is lower than this range, the required I and D cannot be obtained, and even if it exceeds this range, the distance between the lower surfaces of the heads increases and the fitability with a fine mating pile deteriorates. A more preferable range is 0.35 to 0.7 mm.

The thickness (T) of the surface of the base material sheet is preferably 0.08 to 0.35 mm. When the thickness is less than this range, the physical properties of the base material as a fastener and the stability of engagement are uncertain, and the moldability is deteriorated. On the other hand, if the thickness exceeds this range, the distance from the direction in which the flexible fastener of the present invention is obtained is increased.

In the fastener for pursuing the object of the present invention, of course, the finest female side (type) loops or piles are the most suitable, but the fine loops or piles are the object. In this case, the head of the engaging element
Indeed, with a key shape in which the mounting angle (θ) of the protrusion is small, the fine loops and piles are cut, and the head side corresponding to the loops and piles is also fine, so the head side is also damaged. It was easy to realize that the engagement force cannot be maintained when repeated attachment / detachment is required. Therefore, in the present invention, the shape as the engagement element 4,
That is, the mounting angle (θ) of the protrusion 5 of the head 3 with respect to the column 2 is excluded from being an acute angle in the case of the conventional hook shape, and typically, as shown in FIGS. As shown, the projection 5 has a shape parallel to the surface of the base material sheet 1 or, rather, has an inclination that rises with respect to the surface of the base material sheet, and has a shape in a direction in which the engaging function as an engaging element is lost. The element itself is also miniaturized as described above, and by forming it with a high density, the mating of the element alone with respect to the female side (mold) surface fastener or the female side (mold) member of which the other party has a minute loop or pile structure. Even if the stopping force is small, the total engaging force is practically sufficient, and the engaging force can be maintained without significant damage to both engaging elements against repeated detachment. .

As can be understood from the above, when the mounting angle (θ) of the protrusion 5 of the head is less than 70 degrees, the engaging force sharply increases, but it is impossible to wipe off the crunchiness, and both the hook side and the pile side. The engagement element is easily damaged, and the removability is repeatedly deteriorated. Further, when the mounting angle (θ) exceeds 120 degrees, the elements are easily disengaged, and the engaging force between them is significantly reduced.

The present inventors have pursued a fastener which is one of the objects of the fastener member of the present invention and is capable of providing a smooth touch feeling without feeling in touch and touch, and the touch method is shown in FIG. It was found that the results match well with. That is, FIG. 4 is an explanation for measuring the amount of depression (X) of the spherical body 6 from the upper end of the head portion when the spherical body 6 having a diameter of 2.5 mm is circumscribed between the head portions of the surface fastener engaging element. As shown in the figure, the smaller the sinking amount of the circumscribing sphere, the smoother and smoother the feel of the hook-and-loop fastener is, and when the sinking amount of the sphere is 0.2 mm or less, the feel and the feel of the skin feel smooth. It will be something. In other words, in order to solve the above problem, in order to reduce the amount of depression of the sphere as described above, the structure and the arrangement of the engaging elements must be an appropriate structure, The surface fastener of the present invention realizes this.

By making the fastener satisfying each of the above constitutions, basically, the appearance and the feel are fine, the feel of touch and touch is soft, the engagement and disengagement feeling is extremely soft and smooth, and the repeatability is good. It can be an excellent fastener. Further, since the present fastener is ultrathin and has a smooth surface, it does not feel uncomfortable and has excellent flexibility, and also has good workability for sewing to an adherend and attaching a welder. Furthermore, it is important to note that this fastener has a strong engaging force with the mating material that the mating partner is made of extra-fine loops and extra-fine piles, but has low engagement with loops and piles of large fineness. Is. Therefore, the main fastener or the product using the main fastener is not easily caught by coarse dust and lint, and even if it is caught, the engaging force per element is weak so that it can be easily removed. Even if you wash it together
They are hard to get caught and are therefore less likely to be damaged.

As can be understood from the dimensions of the engaging elements in the present fastener, the female side (mold) member preferably used in the present fastener is a fine female fastener or a female side (mold side) made of ultrafine loops or ultrafine piles. Mold) member. The ultrafine loop and the ultrafine pile are preferably fibers having a single yarn fineness of 12 dr (denier) or less, more preferably a single yarn fineness of 6 dr or less so that at least the surface portion thereof forms a loop or a pile or a mixture of both. It refers to the woven or non-woven fabric made in. For example, the non-woven fabric means a spunbonded non-woven fabric, a melt blown non-woven fabric, a hydroentangled non-woven fabric, and the like, and also includes those obtained by wrinkling or gathering.

A fastener satisfying the above constitution can be manufactured, for example, by a molding method known as an extrusion molding method for this type of fastener. That is, as the discharge holes, there are provided holes for discharging as a base sheet, and holes for discharging as protrusions for forming engaging elements in a plurality of rows arranged on the base sheet. Using a die having matched holes, resin is extruded from the extruder through the die, and immediately after extrusion, it is rapidly cooled in a cooling bath such as a water bath to continuously form a base material and a plurality of rows of protrusions placed on the base material. The tape-shaped or sheet-shaped molded product. And then this
Make a cut in the ridge of the molded product with a cutter that rotates at a high speed set to a blade angle (see angle α in FIG. 3 above) with respect to the length direction of the molded product, and then stretch it. A group of engaging elements 4, 4, 4, ... Is densely planted in a forested state on the base material sheet 1 by guiding it to a stretching region using a roll and stretching it by 1.5 to several times. A tape-shaped or sheet-shaped fastener can be obtained.

Typical synthetic resins for manufacturing this fastener include polyamides made of nylon 6, nylon 66, nylon 610, nylon 11 or copolymers thereof, polyolefins such as polyethylene and polypropylene, polyethylene. Examples thereof include polyesters and polyurethanes represented by terephthalate and polybutylene terephthalate, but are not limited to these resins.

The elastic modulus of the resin used is not particularly limited, but is usually 80 from the viewpoint of workability and flexibility of the product.
Those having 0 to 12000 kg / cm ² are preferably used. The hook-and-loop fastener of the present invention is broadened in its application fields to wider clothing fields, medical member fields, fine-oriented fields, decoration-oriented fields, etc., where application of the conventional fasteners has been hindered due to its uncomfortable feeling. It is extremely useful as a coupling member that can be used.

[0037]

EXAMPLES The present invention will be described in more detail below with reference to examples. The peel strength of the samples in the examples was measured by JIS-L-3416 (1988). Examples 1 and 2 and Comparative Examples 1 to 3: Polypropylene resin was used as the resin material of the fastener, and the ordinary extrusion molding method as described above, which is known as a method for manufacturing a molded surface fastener, was used under the nozzle conditions. By changing the manufacturing method conditions, a male forming type surface fastener material was prepared in which a large number of engaging element groups shown in FIG. Table 1 below shows various form conditions and arrangement conditions of the engaging elements of the surface fastener material. The arrangement density of the engaging elements was 110 / cm ² in Example 1 and 130 / cm ² in Example 2.

[0038]

[Table 1]

Examples 1 and 2 are examples satisfying all the various form conditions and the arrangement conditions of the engaging elements defined in the present invention, while Comparative Example 1 has a head lower surface and a base material surface. When the distance between the two is smaller than the specified in the present invention, in Comparative Example 2 the mounting angle (θ) of the head is smaller than the specified in the present invention, and in Comparative Example 3, the vertical and horizontal gaps of the engaging elements are insufficient. Is an example of.

The male forming type surface fasteners obtained in Examples 1 and 2 and Comparative Examples 1 to 3 were used as female fastener materials to be engaged with the male forming type surface fasteners, which were generally commercially available and had about 20 denier. Peel engagement force when engaged with a female fastener member having fiber fineness and size loops or piles, and engagement with a woven fabric having ultrafine loops or ultrafine piles of ultrafine fiber of 3 to 5 denier Table 2 below shows the results of peeling engagement force, the appearance of each fastener, the feeling of engagement and disengagement at the time of attachment / detachment, and the smoothness to the touch and the skin.

[0041]

[Table 2]

[0042]

EFFECTS OF THE INVENTION The male surface fastener member of the present invention has a finer appearance and texture than conventional ones, a soft and smooth feel to the touch, a very thin and smooth surface, and fine loops and piles. Good engagement with the female fastener and the female member having the configuration, and the engagement is less likely to be crunchy.

[Brief description of drawings]

FIG. 1 is a partially enlarged external view of a fastener member of the present invention.

FIG. 2 is an enlarged external view for explaining an engaging element that constitutes the fastener member of the present invention.

FIG. 3 is an enlarged partial plan view of the present fastener for showing the vertical and horizontal clearances of the engaging element in the present invention.

FIG. 4 is an explanatory diagram illustrating a measuring method for checking the smoothness of a surface fastener.

[Explanation of symbols]

 1 Base Material Sheet 2 Support 3 Head 4 Engagement Element 5 Head Protrusion 6 Sphere

Claims (2)

[Claims] 1. A base sheet having a T-shaped or inverted L-shaped engaging element in front view, which is composed of a column and a roof-shaped head that is placed on the upper end of the column and extends over at least one side of the column. A male fastener member formed in a forested state on a surface, which satisfies the following requirements (a) to (f). (A) The distance (I) between the lower surface of the head and the surface of the base material sheet is 0.
1-0.7 mm (b) Head protrusion length (E) is 0.06-0.4 mm (c) Head thickness (D) is 0.08-0.35 mm (d) Head width (C) Is 0.15 to 0.5 mm (e) The plane area (S) of the head is 0.08 to 0.35 mm
² (f) The horizontal clearance (J) and the vertical clearance (K) between the engaging elements are 0.1 to 0.8 mm and 0.3 to, respectively.
1.0 mm. 2. The surface fastener member according to claim 1, which satisfies the following requirements (g) to (h). (G) The mounting angle (θ) of the lower surface of the head with respect to the column is 70.
.About.120 degrees (h) The maximum penetration depth from the upper end of the head when the sphere having a diameter of 2.5 mm is brought into contact with the head between the engaging elements is 0.
2 mm or less.