CN1130185C - Mechanical fastening tapes and method for their construction - Google Patents
Mechanical fastening tapes and method for their construction Download PDFInfo
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- CN1130185C CN1130185C CN94193607A CN94193607A CN1130185C CN 1130185 C CN1130185 C CN 1130185C CN 94193607 A CN94193607 A CN 94193607A CN 94193607 A CN94193607 A CN 94193607A CN 1130185 C CN1130185 C CN 1130185C
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- interlocking material
- interlocking
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- Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
Abstract
Disclosed is an improved fastening tape for use on a disposable garment. The fastening tape comprises a first substrate and an interlocking material attached to said first substrate. The interlocking material extends the entire width of the fastening tape, and the interlocking material is longitudinally spaced from both transverse edges of the fastening tape. Also disclosed is a process for manufacturing the fastening tape. The process involves providing a continuous length of an interlocking material having a width and traveling in a first direction. The interlocking material is attached to a first substrate to form a composite. The composite is then cut along a second direction to form fastening tapes suitable for attachment on a disposable absorbent garment. The second direction is substantially perpendicular to the first direction.
Description
Technical field
Mechanical type connecting band of the present invention and manufacture method thereof particularly are applied to connecting band and the manufacture method thereof of disposable absorbent with goods.
Background technology of the present invention
Mechanical connecting device is applied to disposable absorbent, and for example diaper, training with on goods or the like, belong to well-known technology with goods, feminine hygiene with medicated underpants, adult-incontinence with goods.A kind of disposable absorbent that is applied to is a kind of hook-loop type connector with the mechanical type connector of the general type on the goods, and wherein being provided with a kind of hook or claw can releasably engage with a kind of ring or ring-shaped article material.This hook-loop type connector also belongs in the prior art well-known.
Though mechanical type hook-loop type connector is applied to disposable absorbent with being well-known on the goods, this application does not generalize.Why like this, part is because this kind hook-loop type connector is compared with the more common splicing tape on the goods with the current disposable absorbent that is used in, and has increased cost.Hook-loop type connector fails extensively to be used in disposable absorbent with another reason on the goods, relate to be difficult to produce disposable absorbent and form this hook-loop type connector under with the high speed of universal relation in the goods.The problem of the processing method relevant with forming this hook-loop type connector can influence the relative cost of this connector equally.Have, the difficult point of the processing method relevant with this hook-loop type connector not only relates to the formation of specific hook-loop material pieces again, also relates to this hook-loop material pieces is attached to form on other parts to be applicable to that disposable absorbent is with the connecting band on the goods.This kind hook-loop material pieces must fully be attached to securely on the connecting band and the safety problem of goods not occur.In order to make hook-loop type connector more easily be applied to disposable absorbent, need provide the improved connecting band of hook-loop section bar materials and parts and the method that is used for making this connecting band of including with on the goods.
General introduction of the present invention
One aspect of the present invention relates to a kind of like this disposable absorbent that is used in the connecting band on the medicated clothing.This kind connecting band has a width and a length, and one first widthwise edge and one second widthwise edge.This connecting band comprises first substrate that a width arranged and a kind ofly is attached on this first substrate and extends the interlocking material of the whole width of connecting band so far.This interlocking material longitudinally separates with first and second horizontal edge of connecting band.
Another aspect of the present invention relates to a kind of like this disposable absorbent that is applied in the connecting band on the medicated clothing.This kind connecting band has a width and a length and one first widthwise edge and one second widthwise edge.This connecting band comprises first substrate and an a kind of interlocking material that is attached on this substrate with a width.This interlocking material has a width and a length and two longitudinal edges.Interlocking material is attached on first substrate, and making this interlocking material have a vertical limit at least is not directly to be attached on first substrate.
Another aspect of the present invention relates to a kind of like this disposable absorbent that is applied in the connecting band on the medicated clothing.This kind connecting band has a width and a length and one first widthwise edge and one second widthwise edge.This connecting band comprises first substrate and an a kind of interlocking material that is attached on first substrate with a width.This interlocking material has a width and a length and two longitudinal edges.This interlocking material is to be attached on first substrate by binding agent and heat bonding.
The present invention proposes a kind of manufacturing and is used for the continuous constructive method of disposable absorbent with the connecting band on the medicated clothing, and the method comprises the steps: to provide the interlocking material that has a width and advance along a first direction of a continuous length; Described interlocking material is attached on one first substrate of advancing along described first direction to form a composite material element; It is characterized in that, the width of described interlocking material is less than the width of first substrate, and described interlocking material is attached on described first substrate, make described interlocking material be attached on described first substrate, so that interlocking material form the not edge of attachment along whole width less than described interlocking material; Also comprise: open described composite material element to form two composite material elements that are cut into along described first direction cutting; Wherein said interlocking material and described first substrate are all opened by cutting, make each composite material element that is cut into all include described interlocking material and described first substrate thus; And cut described composite material element and form along a second direction and be fit to be attached to a moisture absorption with the connecting band on the medicated clothing, described second direction is perpendicular to described first direction.
The present invention proposes a kind of method of disposable absorbent with the continuous formation of the connecting band on the medicated clothing that be used to make, the method comprises the steps: to provide an interlocking material that has an overall width and advance along a first direction, and it is laterally separated is the interlocking material of two continuous lengths; The interlocking material of described two separated continuous lengths is attached on one first substrate that has a width and advance along described first direction, to form a composite material element; The overall width of the interlocking material of wherein said two separated continuous lengths is less than the width of described first substrate, and described two interlocking materials of separating continuous length are to be attached on described first substrate along each the whole width less than the interlocking material of these two separated continuous lengths, so that determine the not edge of attachment along each longitudinal edge of the interlocking material of two separated continuous lengths; Described composite material element is attached on one second substrate that has a width and advance along described first direction, to form a band assembly; Open described band assembly along the cutting between the interlocking material of described two separated continuous lengths of described first direction; And cut described band assembly along a second direction, to form connecting band, described second direction is perpendicular to described first direction.
The present invention proposes a kind of disposable absorbent that is used for the connecting band on the medicated clothing, described connecting band has a width, a length, one first horizontal edge and one second horizontal edge, described connecting band comprises: first substrate with a width and length, and described first substrate defines the width and the length of described connecting band; And a kind of interlocking material that is attached on described first substrate and extends to the whole width of described connecting band with its length; It is characterized in that, the width of described interlocking material is less than the length of described first substrate, and described interlocking material is to be attached on described first substrate along the whole width less than interlocking material, so that interlocking material forms the not edge of attachment that width is the 5-35% of interlocking material width.
Another aspect of the present invention relates to the method that is used for making on medicated clothing at disposable absorbent a kind of continuous formation of connecting band.The method comprises the following steps: that (1) provides a kind of interlocking material that has a width and advance along a first direction of continuous length; (2) this interlocking material is attached on one first substrate of advancing along first direction, to form a kind of composite material element, and (3) cut this composite material element along a second direction, forms the connecting band that is suitable for being attached on the hygroscopicity medicated clothing, and this second direction is substantially perpendicular to first direction.
Of the present invention one desirable especially aspect in, it includes a kind of like this method that is used for the continuous formation of the connecting band made on medicated clothing at disposable absorbent.The method comprise the steps: (1) provide a continuous length have a width and along the interlocking material of advancing in the first direction; (2) this interlocking material is attached on one first substrate that has a width and advance along first direction, to form a kind of composite material element; (3) this composite material element is cut along first direction, to form two composite material elements that are cut into; (4) these two composite material elements that are cut into are attached on second substrate that has a width and advance along first direction, to form a band assembly, above-mentioned two composite material elements that are cut into are spaced apart in the horizontal before being attached on second substrate; (5) cut second substrate that this is with assembly along first direction; And (6) cut this band assembly along a second direction, and to form connecting band, this second direction is substantially perpendicular to first direction.
Of the present invention another desirable especially aspect in, it includes a kind of like this method that is used for making on medicated clothing at disposable absorbent the continuous formation of connecting band.The method comprises the steps: that (1) provides the interlocking material that has a width and advance along a first direction of two continuous lengths, and the interlocking material of these two continuous lengths separates in the horizontal; (2) interlocking material of these two continuous lengths is attached on first substrate that has a width and advance along first direction, to form a kind of composite material element; (3) this composite material element is attached on second substrate that has a width and advance along first direction, to form a band assembly; (4) this band assembly is cut along first direction; And (5) cut this band assembly to form connecting band along a second direction, and this second direction is substantially perpendicular to first direction.
In another desirable especially direction of the present invention, it includes a kind of like this method that is used for making with medicated clothing at disposable absorbent the continuous formation of connecting band.The method comprise the steps: (1) provide two continuous lengths have a width and along the interlocking material of advancing in the first direction, the interlocking material of these two continuous lengths separates in the horizontal; (2) interlocking material of these two continuous lengths is attached on first substrate that has a width and advance along first direction, to form a kind of composite material element, the interlocking material of these two continuous lengths is attached on this first substrate with the thermal dual mode by bonding; (3) this composite material element is attached on second substrate that has a width and advance along first direction; To form a kind of band assembly; (4) this band assembly is cut along first direction; And (5) cut this band assembly to form connecting band along a second direction, and this second direction is substantially perpendicular to first direction.
Brief description of drawings
Fig. 1 is the plane graph according to connecting band of the present invention;
Fig. 2 is the decomposition diagram of connecting band shown in Figure 1;
Fig. 3 is the profile of the connecting band shown in Fig. 1 along 3-3 intercepting among this figure;
Fig. 4 A shows bright according to one of the connecting band of the present invention first selective embodiment;
Fig. 4 B shows bright according to one of the connecting band of the present invention second selective embodiment;
Fig. 5 schematically illustrates one first embodiment of processing method of the present invention;
Fig. 6 schematically illustrates one second embodiment of processing method of the present invention;
Fig. 7 schematically illustrates one the 3rd embodiment of processing method of the present invention;
Fig. 8 A schematically illustrates one the 4th embodiment of processing method of the present invention;
Fig. 8 B is a preferred embodiment of the processing method shown in the key diagram 8A schematically;
Fig. 9 A is the plane graph according to the connecting band of the manufacturing of the processing method shown in Fig. 8 A;
Fig. 9 B is the plane graph according to the connecting band of the manufacturing of the processing method shown in Fig. 8 B;
Figure 10 A is the profile along the intercepting of the 10A-10A line among Fig. 9 A;
Figure 10 B is the profile along the intercepting of the 10B-10B line among Fig. 9 B;
Figure 11 shows the bright disposable diaper for baby that includes connector of the present invention;
Figure 12 is the profile along the intercepting of the 12-12 line among Fig. 1;
Figure 13 shows bright below in conjunction with used test specimen in peeling off of carrying out of described example and the shearing test; With
Figure 14 shows a test stand and the test specimen in the bright shearing test of carrying out in conjunction with described example below.
DETAILED DESCRIPTION OF THE PREFERRED
The present invention relates to a kind of connecting band that is applicable to disposable absorbent with medicated clothing.Term " disposable absorbent medicated clothing " is meant any disposable medicated clothing of attempting to be used for to absorb the body fluid of discharge at this.Disposable absorption for example has diaper, adult-incontinence goods, training medicated underpants, women sanitary towel, binder and similar articles with medicated clothing.For ease of understanding, following major part is described and will be undertaken by the situation that connecting band of the present invention is used for disposable diaper.Even so, but it should be understood that connecting band of the present invention is equally applicable to other any disposable absorbent medicated clothing, and suitable equally other application of associated methods described here, for example be used in the others of disposable absorbent with the medicated clothing structure.
One aspect of the present invention relates to a kind of like this connecting band that is used for disposable absorbent with medicated clothing.By consulting accompanying drawing, can understand this connecting band better, wherein, Fig. 1 shows the plane graph of understanding according to this a kind of connecting band on the one hand of the present invention.The length of connecting band 10 be L and width be W according to used here, the length of so-called connecting band refers to connecting band and is approximately perpendicular to disposable absorbent that it is attached to the size on the length of medicated clothing.Disposable absorbent then refers to such size of this medicated clothing with the length of medicated clothing, it from then on the low back zone of medicated clothing arrive by its crotch area the belt district relative.This is generally corresponding to the machine direction of this medicated clothing in manufacture process and the maximum planes size of goods.The width of connecting band then refers to the size that is generally perpendicular to its length direction of this connecting band.
Connecting band 10 is determined one first horizontal edge 12 and one second horizontal edge 14.Connecting band 10 comprise one have width W ' first substrate 16.In the embodiment shown, the full duration W interlocking material 18 of the width W of first substrate 16 ' be equivalent to connecting band 10 is attached on first substrate 16 and to extend to this interlocking material of overall with W of connecting band 10 spaced apart with first horizontal edge 12 and second horizontal edge 14 in the vertical.Interlocking material has the length of a width W of extending along the length direction of connecting band " and perpendicular to width W " direction.
According to used here, so-called interlocking material is meant a kind of material that is fit to do with one second kind of material mechanical interlock.In illustrated this embodiment, this interlocking material is meant the hook portion or the loop section of hook-loop connector.The hook-loop connector is that to be familiar with the technical staff of this technology known.The hook-loop connector generally includes a hook material and a ring-shaped material.Hook material generally includes a kind of substrate material of extended rod-like protrusions from it.One termination of this rod-like protrusions is attached on the substrate material, and the other end then defines a hook or hook formation, and the latter is fit to and a ring or ring-type moulding mixture interlocking.This ring or ring-type moulding mixture generally include a kind of weaving or non-woven material, the latter determine can with each ring of hook or hook material interlocking.Other interlocking material comprises jointing material, fastener, or the like.
Be applicable to that of the present invention one typical hook material can be from Velcro Groupcompany, Manchester, New Hampshire, trade names are to obtain among CFM-22 and the CFM-15.A kind of hook material that is fit to generally comprises about 300～about 1000 hooks (every square centimeter comprises about 46 to about 155 hooks) per square inch, preferably comprises about 700 per square inch to about 900 hooks (every square centimeter comprises about 108 to about 140 hooks).The height of this hook should be from about 0.015 inch (0.038 centimetre) to about 0.050 inch (0.127 centimetre), and preferably from about 0.025 inch (0.0635 centimetre) to about 0.035 inch (0.0889 centimetre).
Be applicable to that typical ring-shaped material of the present invention can be from Guilford Mills, Inc., Greensboro, North Carolina obtains in trade names 19902 types or 30020 types.Suitable a kind of ring-shaped material is a kind of weaven goods of circulus of protuberance, and it is handled through napping and heat cure stability, makes ring-shaped material easily hold up from the substrate material.This kind weaven goods can be a kind of twobar fabric structure, this structure has the stringer (10.24 to 18.1 stringers/centimetre) of per inch 21～41 lines (8.27～16.4 lines/centimetre) and per inch 26～46, preferably such polyester yarn, wherein 15～35% yarn has about 15 or less long filament, and the danier of yarn (denier) is in the scope of about 15～30d.In addition, about 65～85% this yarn then has 1～30 various long filaments, and the danier of yarn is in the scope of about 30～50d.The diameter of every yarn is 0.010～0.040 inch (0.0254～0.1 centimetre), and basic weight is every square yard of 1.0～3.0 ounces of ((33.91-101.3g/m
2).The ring-shaped material that is suitable for for example is shown in the 5th, 019, No. 073 United States Patent (USP) (mandate on May 28th, 1991) of authorizing Roessler etc., and wherein disclosed content has been incorporated into this as a reference.
Though be attached to the first on-chip interlocking material promptly can be that hook material also can be a ring-shaped material, and generally speaking, this interlocking material preferably includes a hook material.Those skilled in the art will be appreciated that, second kind of interlocking material that interlocking material 18 intends being interlocked is arranged on disposable absorbent with on such position of medicated clothing, so that can utilize connecting band 10 to be attached disposable moisture absorption medicated clothing around wearer's waist.Generally, connecting band 10 will be attached to this disposable absorbent with on the rear perimeter edge of medicated clothing, and second kind of interlocking material will be attached to this disposable absorbent contiguous one leading edge place on the outer surface of medicated clothing.To illustrate in greater detail this aspect of the present invention below.In addition, connecting band 10 also may be attached to this disposable absorbent with on the preceding periphery of medicated clothing, and second kind of interlocking material may be attached to the rear edge of this disposable absorbent with contiguous medicated clothing on the outer surface of medicated clothing.
Connecting band of the present invention can comprise first substrate 16 and interlocking material 18.In specific embodiment shown in Figure 1, connecting band 10 also includes one second substrate 20, is attached with first substrate above.This aspect of the present invention can obtain best understanding referring to Fig. 2, and Fig. 2 is the decomposition diagram of connecting band 10 shown in Figure 1.As can see from Figure 2, the length that first substrate 16 is had is less than the length of second substrate 20, but its width then equates with the width of second substrate 20.The length that second substrate 20 extends to outside first substrate, 16 length is partly determined a pulling-on piece of generally indicating with label 22, it in use plays a kind of effect of grip tab, can allow user easily from the relation of one second interlocking material or interlocking move down interlocking material 18.In addition, pulling-on piece 22 can also be used for preventing twinge skin that when not having it, the edge of interlocking material 18 will produce the influence of this twinge skin.
Should be appreciated that above-mentioned first and second substrate 16 and 20 can have multiple different relevant configuration each other.For example they can have consistent configuration (seeing Fig. 4 A and 4B).In addition, the length of second substrate or width can less than or greater than the length or the width of first substrate 16.
Any have the elastomeric material that can realize the required physical strength of above-mentioned linkage function, it is believed that all to be suitable for the material of making this first and/or second substrate.The material that is suitable for use as first and second substrate for example comprises: thermoplasticity or thermoset film, and for example poly-hydrocarbon thin film, polyurethane film, or the like; Non-woven material for example melts and sprays or spunbond poly-hydrocarbon; Weaving material; Non-woven synthetic; Non-woven/the thin film synthetic; Or the like.
Anyly first and second substrate can be attached and/or be made first interlocking material to be attached to method on first substrate mutually, be sure of all to be applicable to the present invention.For example, can be with heat or cold hot-melt adhesive, thermal (comprising combination of ultrasound), sew up or the combining form of these methods, or the like, above-mentioned these materials are attached to together.In a preferred embodiment of the invention, this interlocking material is attached on first substrate with binding agent and thermal.
Fig. 3 is the profile along the intercepting of the 3-3 line among Fig. 1.Fig. 3 shows among the bright embodiment that first substrate 16 and second substrate 20 are bonding with adhesive phase 24.Similarly, interlocking material is to adhere on first substrate 16 with adhesive phase 26.Those skilled in the art can know the suitable jointing material that is used for forming adhesive phase 24 and 26.Typical this class jointing material can be available from Findley Adhesives, Inc., and Wauwatosa, Wisconsin, trade names are H-2096.Referring to Fig. 3 as can be known, this first and second substrate is not attached in their eclipsed zones, and in other words, adhesive phase 24 is not the horizontal edge 12 that always extends to connecting band 10.Therefore, a part of first substrate 16 and second substrate 20 will can be not bonded to each other at vertical end 12.
Have found that, have not edge 27 on the attachment and can reduce the probability that interlocking material 18 and connecting band 10 are separated.Specifically, in the embodiment shown in Fig. 4 A, may separate with connecting band 10 by interlocking material 18 and separating of adhesive phase 26 urging to cause interlocking material 18 without the existence at edge 27 of attachment.When not having edge 27 (see figure 3)s of this not attachment, interlocking material 18 separates with connecting band 10 with regard to separation that may be by first and second substrates and first the tearing of substrate.But general rule is to make interlocking material 18 and adhesive phase 26 separate the power of required usefulness mutually greater than making first substrate and second substrate separate required power mutually.
Find in addition, can improve the performance of hook-loop connected system without the edge 27 on the attachment.Specifically, the not existence at the edge 27 on the attachment, particularly, found to cause interlocking material (hook material) 18 and ring-shaped material to make initially-separate by cut mode (power generally is parallel to the plane of interlocking) rather than by peeling off mode (power is generally perpendicular to the plane of interlocking) in pulling-on piece one side of interlocking material 18.Those skilled the in art will appreciate that by cut mode and separate the required power of a hook material and a ring-shaped material generally greater than separating this two kinds of power that material is required to peel off mode.
Width (about 5% to about 35% of the W ") that the edge 27 general width that have on not being attached are interlocking material 18.And preferably about 10% to about 35%.Interlocking material 18 and adhesive phase 26 can be along the whole peripheries of interlocking material 18 or are only formed not adherent edge along the part of this periphery.
Fig. 4 B shows one second embodiment that preferably Gong selects for use of clear the present invention.Fig. 4 B is consistent with content shown in Fig. 4 A except that including heat joining part 25.Like this, in the embodiment shown in Fig. 4 B, interlocking material 18 is that both are that binding agent and thermal are attached on first substrate 16 by adhesive phase 26 and heat joining part 25.In addition, first substrate 16 is that both are attached on second substrate 20 by adhesive phase 24 and heat joining part 25.
Each applicant of the present invention finds, by binding agent and thermal interlocking material 18 is attached on first substrate 16, can form an attachment system with good shear adhesion power (creep mode) and good peel adhesion (dynamically).Specifically, adhesive bond is as above-mentioned.Just as described above, this binding agent is bonding to have good peel adhesion.But under certain conditions, for example at high temperature, found only be binding agent in conjunction with the time, its shear adhesion power is in some cases will be less than required power.The applicant also finds, adopts thermal again except that the binding agent combination, can form an attachment system with good shearing and good peel adhesion.Applicant's supposition (but being not intended to retrained by this) existence of binding agent joint portion helps to improve the peel adhesion of attachment system significantly, and the existence of heat joining part then can improve the shear adhesion power of this system significantly.
According to used here, so-called " heat " is in conjunction with being meant the bonded result who causes the energy of local heat to form owing to application.Therefore, so-called thermal comprises application of electromagnetic radiation and combining that the using ultrasound the subject of knowledge and the object of knowledge forms.
In a preferred embodiment, this kind thermal is a combination of ultrasound.Those skilled in the art is when knowing the method that is suitable for forming combination of ultrasound.The apparatus and method for of using for combination of ultrasound for example is shown in No. the 5th, 096,532, the United States Patent (USP) (1992,3,3 authorize) of the United States Patent (USP) the 5th, 110, No. 403 (1992,5,5, authorize) of Ehlert and Neuwirth etc.This combination of ultrasound should be enough to impel interlocking material 18 to come adhesive effect with first substrate, 16 melt-flow.
Any form of thermal is be sure of all applicable to the present invention.The combining form that this respect is suitable comprises various independent adhesion area, for example circular, square, triangle, rhombus or the like; Linear, bar shaped, sinusoidal wave form, chain-dotted line form or the like.Those skilled in the art should know, when interlocking material 18 is the hook material of hook-loop connector, forms the function that aforementioned this thermal can be damaged existing each hook in the thermal district.Therefore, generally needing the combining form of design is the function of the least possible damage hook.For this reason, the percentage ratio of the interlocking material surface region that thermal district (also being referred to as the land) covered is from about 1 to about 20, or from about 1 to about 10, or from about 1 to 5.Therefore, when reserving the space of this heat joining part on the whole surf zone of hope at interlocking material, the surface area that each heat joining part had that may use is about 0.0001 to about 1.5 square centimeters, or from about 0.001 to about 0.013 square centimeter.
May find in some cases can have synergistic effect between this adhesive joint and the thermal.The applicant thinks, the combination that this synergistic effect most probable betides continous way for example formed in linear or the waveform, and is to have reached about 7% or bigger in total land, until about 20% o'clock.
In some cases, interlocking material need be designed so that thermal can not damage the function of hook material.For example, can will not have the marginal portion of hook material to be set on the interlocking material in the substrate material, thermal then can take place on some marginal portions like this.In addition, the zone of some discrete no hook-shaped materials can be set on the whole surface region of interlocking material, heat joining part then can be positioned in the zone of this no hook-shaped material.
In a preferential embodiment, heat joining part is by the combination of ultrasound form and is the form of about 0.064 centimetre a kind of one circular joint portion, cut-off footpath, and is covered with the surface region of about 2% interlocking material.Some joint portions normally evenly separate on the surface of interlocking material like this.This kind joint portion is fit to form with about 0.064 centimetre of base diameter, about 15 ° of tapering, high about 0.15 centimetre cone pin.These pins are positioned on the anvil of a combination of ultrasound equipment, and this anvil combines with a ultrasonic horn bulk phase to produce heat joining part.In order further to protect the function that comes across each hook material on the interlocking material, the anvil of this combination of ultrasound equipment is contacted with interlocking material, the horn body of combination of ultrasound equipment is contacted with first substrate.In addition, preferably make pin or limit the height that other rising zone had of combining form, claw is damaged to underproof degree even as big as preventing.Exactly, the thickness of the material handled greater than pending thermal of the height that other rising zone had that generally requires this pin or define combining form.
In Fig. 4 A and 4B illustrated embodiment, first substrate 16 has identical length with second substrate 20.24 of adhesive phases extend between first and second substrate since then, up to second horizontal edge 14 of connecting band 10 but do not extend to first horizontal edge 12.
In the embodiment shown in Fig. 3,4A and the 4B, connecting band 10 is used for being attached in this wise disposable absorbent with on the medicated clothing, promptly the not bonding part of first substrate 16 is attached to this disposable absorbent with on the inner surface of medicated clothing, simultaneously the not bonding part of second substrate 20 is attached to this disposable absorbent with on the outer surface of medicated clothing.Just this absorbent garments is clipped in first substrate 16 and not between the stick portion of second substrate 20.Below in conjunction with accompanying drawing 11 and 12 this one side of the present invention is described in more detail.
Nature can be attached to this disposable absorbent with on the medicated clothing with connecting band 10 with other method.For example, first and second substrate can be bonded together on their whole length.Connecting band can be attached on the interior or outer surface of this medicated clothing then.Perhaps can between the discrete part of this medicated clothing connecting band 10 is attached to this disposable absorbent with medicated clothing on.Other attachment method is the power that equates to be applied to comprise single first substrate and do not have on the connecting band of second substrate more like this.
Interlocking material 18 preferably separates with second horizontal edge 14 with first horizontal edge 12 of connecting band 10 in the vertical mutually.This interlocking material will separate one at least about 2 millimeters with each horizontal edge, better is about 8 millimeters at least, and particularly preferably is about 16 mm distance at least.Under this mode, a pulling-on piece 22 can be set.Generally, can make first interlocking material 18 be positioned at a position nearer and far away with first horizontal edge 12 with second horizontal edge 14.But when interlocking material 18 is softer, then can make it be positioned at the first or second horizontal edge place of connecting band.
Another aspect of the present invention relates to a kind of manufacture method that is used for disposable absorbent with the connecting band on the medicated clothing.Can understand this method best referring to accompanying drawing, Fig. 5 has wherein schematically shown a kind of processing method of the present invention.The interlocking material 18 of a common continuous length is provided.This interlocking material 18 is supplied with from feed roller 28.The interlocking material of this continuous length has a width and advances along a first direction D.The above-mentioned width of this interlocking material is to go out in an orientation measurement that is approximately perpendicular to direction D.In the embodiment shown in fig. 5, by spreader 30 a kind of PUR is applied on this interlocking material.Provide one first substrate 16 from feed roller 32.First substrate 16 has a width W
1And D advances along first direction.Because spreader 30 is the result of adhesive coated to the interlocking material 18, interlocking material 18 promptly is attached on first substrate 16 and near a longitudinal edge of first substrate.Guarantee forming bonding the contact between interlocking material 18 and first substrate 16 with a pair roller 34.Interlocking material just forms a kind of composite material element when joining on first substrate.
Those skilled in the art should be known in that any method that first interlocking material can be attached on first substrate all is applicable to the present invention.For example, except that with the binding agent attachment, can also be thermally bonded (comprising combination of ultrasound), or interlocking material is sewn onto on first substrate.In addition, in a preferred embodiment, be first interlocking material to be attached on first substrate with binding agent and thermal dual mode.Similarly, above-mentioned spreader 30 can comprise plane-of-weakness joint type coater, jet printing type spreader, thin pearl formula spreader or curtain formula spreader.
Cut the composite material element of the interlocking material 18 and first substrate 16 then with cutting knife 36, to form each connecting band 38.Cutting knife 36 is to come this composite material element of cutting along a second direction D ' who is substantially perpendicular to first direction D.Again connecting band 38 is delivered to a position that is applied to disposable absorbent with medicated clothing on conveyer 40.
One of ordinary skill in the art appreciates that above-mentioned cutting knife 36 can comprise rotor, air knife, hot cutter, clamp cutter, ultrasonic cutting knife, laser scalpel, or the like.
One second embodiment of this method of the present invention is shown among Fig. 6.Processing method shown in Fig. 6 and processing method basically identical shown in Figure 5, just interlocking material 18 generally is to be administered on first substrate 16 in the center of first substrate 16.After the composite material element that has formed the interlocking material 18 and first substrate 16, with the cutter 42 that cracks this composite material element is cracked, to form two composite material elements that are cut into 44 and 46.Every composite material element that is cut into 44 and 46 all includes first substrate 16 and interlocking material 18.In method shown in Figure 5, cutting knife 36 cuts into connecting band 38 along a second direction D ' who is substantially perpendicular to first direction D with this composite members that is cut into 44 and 46.Conveyer 40 is delivered to connecting band 38 and can makes it be connected to the position of disposable absorbent with medicated clothing.
Referring to Fig. 6 as can be known, by described composite material element being cut into two composite material elements that are cut into 44 and 46 before cutting along second direction, can form two connecting bands along cutting each time of doing of above-mentioned second direction by cutting knife 36.Obviously, if wish to make formed connecting band have the stock size identical with connecting band shown in Figure 5, the original width that first substrate 16 and interlocking material 18 are had need double the width of the interlocking material shown in Fig. 5 18 and first substrate 16.
Processing method shown in Figure 6 may be better than processing method shown in Figure 5, once can form two connecting bands because cutting knife 36 whenever cuts.Being familiar with those skilled in the art should know, can adopt the disposable absorbent of connecting band of the present invention generally will use two such connecting bands at least with medicated clothing above.Like this, at every turn cutting of cutting knife 36 can form two connecting bands, so just be enough to provide all required connecting bands for a specific disposable absorbent with medicated clothing.
Fig. 7 shows bright foundation a kind of particularly preferred processing method of the present invention.
According to processing method shown in Figure 7, supply with interlocking material 18 by feed roller 28 once more.To interlocking material, this interlocking material promptly is attached to then on first substrate 16 that is provided by feed roller 32 and forms a composite material element with adhesive coated for spreader 30.Interlocking material 18 generally is that the central authorities at substrate 16 are applied on first substrate 16.Roll 34 guarantees to form adhesive bond between first substrate 16 and interlocking material 18.At the longitudinal edge 50 of folding region 48, the first substrates 16 and 52 folded to the top of above-mentioned composite material element, so that this limit 50 is contacting the flat surfaces of first substrate 16 that interlocking material is attached with 52.Cut this composite material element in 42 minutes and formed two composite material elements that are cut into 44 and 46 by the cutter that cracks then.So these two composite material elements that are cut into 44 are separated on side direction by separator 54 along direction D ' mutually with 46.These two composite material elements that are cut into are advanced along first direction continuously.
By adhesive applicator 56 with adhesive coated to these two composite material elements that are cut into.One second substrate 20 of advancing along first direction D is provided by feed roller 58.By adhesive coated apparatus 60 with adhesive coated on second substrate 20.Under these two composite material elements that are cut into 44 and 46 conditions of separating mutually, they are attached on second substrate then along side direction.Under this mode, the part of second substrate is separated these two composite material elements that are cut into mutually.This part of second substrate constitutes pulling-on piece 22 as shown in Fig. 1～3 just.With the composite material element 44 and 46 that is cut into be attached to just form on second substrate 20 one the band assembly 62.Band assembly 62 guarantees first substrate is adhesively sealed on second substrate by roll 64.
Cut at that part of upper edge first direction D that second substrate separate this two composite material elements of being cut into 44 and 46 with the cutter 66 that cracks this moment, to form two band assemblies that are cut into.In a preferred embodiment, second substrate is to interlock for example sinusoidal wave pattern of form and cut along first direction along a kind of.Cut the band assembly that this kind be cut into by cutting knife 36 along a second direction D ' again and form connecting band 38.Specifically, first substrate 16 is to cut along second direction D ' with interlocking material 18, and then the while cuts in a position adjacent with cutting off first substrate along this second direction second substrate 20.This second direction D ' is still and is substantially perpendicular to first direction.Then connecting band 38 is delivered to them with the disposable absorbent that is applied to medicated clothing part by carrier 40.
In a preferred embodiment, interlocking material 18 is to combine dual mode and be attached on first substrate with heat (ultrasonic) with bonding.Those skilled in the art will be appreciated that all change patterns that must have processing method shown in Figure 7, and producing such connecting band, interlocking material wherein combines dual mode with heat (ultrasonic) and ties and be attached on first substrate with bonding.For example, in this course of processing, can be right after roll 34, roll 64 or cutting knife 66 for example aforesaid a kind of combination of ultrasound equipment is set afterwards.
Fig. 8 A shows clear according to another preferred processing method of the present invention.According to the processing method shown in Fig. 8 A, supply with interlocking material 18 by feed roller 28 once more.This interlocking material is formed with a weak line along its length direction.This weak line does not for example have hook material and has an end thinner than material around.So just can make interlocking material 18 be divided into two.These two interlocking materials are also isolated along laterally separating for separator 54 along direction D '.Shown among bright this embodiment, separator 54 includes a forming rolls.Make then on the roller 33 of these two interlocking materials 18 by heating, and be coated with binding agent by spreader 30 on these two interlocking materials 18.These two interlocking materials being adhered on one first substrate of being supplied with from feed roller 32 16, serves as the composite material element that guarantees that the roll 34 of adhesive bond is pressed into to form one again.The width of these two interlocking materials is less than the width of first substrate.Longitudinal edge 50 and 52 at fold domain 48, the first substrates 16 folds on the top of the synthetic material spare that is comprising first substrate 16 and interlocking material 18.When folding, make limit 50 can contact with the flat surfaces of first substrate 16, and make the substrate 16 of winning cover the surface of the exposure of interlocking material 18 with 52.One second substrate 20 of advancing along first direction D is provided by feed roller 58.By adhesive applicator 60 with adhesive coated on second substrate 20.Then the composite material element of first substrate 16 with interlocking material 18 is attached on second substrate.Under this mode, this both part of first and second substrate is two interlocking materials 18 separately.These parts of this first and second substrate have constituted the pulling-on piece shown in Fig. 4 A just.The synthetic material spare of first substrate 16 with interlocking material 18 is attached on second substrate 20 to form a band assembly 62.Band assembly 62 is adhesively sealed on second substrate to guarantee first substrate by roll 64.
, along first direction D on a such part of first and second substrate that separate two interlocking materials 18 cut open, and form the two bar band assemblies that are cut into the cutter 66 that cracks this moment.In a preferred embodiment, this first and second substrate is to cut into along a sine wave pattern in first direction.Then by adhesive applicator 56 with adhesive coated to the band assembly that is cut into.This kind binding agent makes and is used for connecting band is adhered to disposable absorbent with on the goods.Cut the band assembly that this is syncopated as with cutting knife 36 along second direction D ' then, and form connecting band 38.This second direction D ' is substantially perpendicular to first direction.By conveyer 40 connecting band 38 is delivered to and will they be applied to disposable absorbent goods part then.
Fig. 8 B shows an embodiment who understands processing method shown in Fig. 8 A, and interlocking material 18 wherein is to combine dual mode with hot (ultrasonic) and be attached on first substrate with bonding.Exactly, the processing method shown in Fig. 8 B is consistent with processing method shown in Fig. 8 A except the ultrasonic horn body 65 comprising ultrasonic anvil 63 that rotation is arranged and rotation.From Fig. 8 B, can see, the pattern of combination of ultrasound is the whole surface of cover tape assembly 62 not, and usually be limited to the zone of forming by two interlocking material spares, exceed the outer peripheral zone of interlocking material slightly, and with these two zones that interlocking material separates mutually.Remove this, processing method shown in Fig. 8 B is different from that part also is shown in Fig. 8 A, first substrate here in the fold domain 48 places folding, make this first substrate 16 not cover interlocking material 18, and in fact be to terminate in from this interlocking material about 0.125 inch (3.175 millimeters) to locate.This will have in Fig. 9 B and illustrate in greater detail.
Fig. 9 A and Figure 10 A show the clear connecting band that is formed by processing method shown in Fig. 8 A.Fig. 9 B and Figure 10 B show the clear connecting band that is formed by processing method shown in Fig. 8 B.Can see that from Fig. 9 A and Figure 10 A the connecting band of being made by processing method shown in Fig. 8 A comprising one second substrate 20, folded and determine first substrate 16 and the interlocking material 18 of fold line 68.The binding agent that is used for forming connecting band 38 does not then show bright in Fig. 9 A, 9B, 10A and 10B.Fold line 68 is formed on the fold domain 48 of Fig. 8 A and Fig. 8 B.The cutter 66 that cracks is determined line of cut 70, and cutting knife 36 is determined line of cut 72.From to can more clearly realizing that the description of Figure 11 and Figure 12, in application, each connecting band can be by adhering to second substrate 20 on the surface of described medicated clothing, adhere on the apparent surface of this medicated clothing with the first substrate drawout and with it then, and be attached to this disposable absorbent with on the medicated clothing.
From Fig. 9 B and Figure 10 B, can see, the connecting band here is except that having heat (ultrasonic) joint portion 69, be consistent with in conjunction with described in Fig. 9 A and Figure 10 A, end at apart from latter's about 0.125 inch (3.175 millimeters) so first substrate 16 is folded into not with interlocking material 18 lappings and locate.
The applicant has found that, when making first substrate 16 cover interlocking material 18 as the result folding at regional 48 places (shown in Fig. 9 A), can improve the processing method of connecting band 38.Specifically, saw already that connecting band 38 is being transported to when making it with position that diaper combines, this part first substrate 16 that is covered with interlocking material (hook material) 18 just was adhered on the interlocking material 18.Find in addition, with first substrate 16 assign to cover interlocking material 18 in the folding part the time, can make used binding agent in manufacture process, can not touch the hook material of interlocking material.
The width that connecting band of the present invention is fit to have is from about 15 millimeters to about 100 millimeters, and preferably from about 25 millimeters to about 70 millimeters; Its length that has then is from about 25 millimeters to about 150 millimeters, preferably from about 50 millimeters to about 100 millimeters.Therefore, the width that first and second substrate generally has is from about 15 millimeters to about 100 millimeters, preferably from about 25 millimeters to about 70 millimeters; The length that it is fit to have then is from about 50 millimeters to about 175 millimeters, and preferably from about 60 millimeters to about 125 millimeters.
Include among those embodiment of one first and one second substrate at described connecting band.The width of first substrate and/or length can equal, be greater than or less than the width and/or the length of second substrate, otherwise also are like this.Have among the embodiment of different length and/or width at first and second substrate, the length of connecting band and width can be determined according to the combining form of first and second substrate.For example, the length of this connecting band can a length greater than this first or second substrate.
(W ") can be from about 5 millimeters to about 50 millimeters, preferably from about 10 millimeters to about 35 millimeters for the width that interlocking material had.
Figure 11 and Figure 12 show the clear connecting band of use of the present invention on disposable diaper.Those skilled in the art should be known in that diaper 75 generally comprises the bodyside liner 78 of 76, one inside of a cover sheet, and the absorbent core material 80 between cover sheet 76 and liner 78.On two longitudinal edges of diaper 74, generally be provided with lower limb side elastic component 82.This diaper also comprises an Attacking Midfielder's elastic component 84 and a low back elastic component 86.Connecting band of the present invention generally is to be attached in this wise on the rear side of diaper, is about to cover sheet 76 and bodyside liner 78 and is clipped in the zone that these two substrates between first substrate 16 and second substrate 20 are not attached part mutually.This aspect of the present invention can obtain referring to Figure 12 the most clearly to understand.In the embodiment shown in fig. 12, second substrate 20 is not attached on the diaper 74 along the such length that reaches first substrate 16.In described embodiment, interlocking material 18 is comprising the hook material of hook-loop connector.Above-mentioned diaper also comprises one second interlocking material 88 on the cover sheet 76 that is attached to the place, front side that generally is in this diaper.In this embodiment, second interlocking material 88 is comprising the ring-shaped material of hook-loop connector.Those skilled in the art should know that the relative position of hook-loop shape material in this hook-loop part can be conversely on diaper 74.
Can be disclosed in connecting band of the present invention in the following United States Patent (USP) and U.S. Patent application with thereon disposable absorbent object lesson: the 4th, 798, No. 603 (1989,1,17 mandates) of authorizing people such as Meyer with medicated clothing; Authorize Bemardin the 5th, 176, No. 668 (1993,1,5, authorize); Authorize people such as Bruemmer the 5th, 176, No. 672 (1993,1,5, authorize); Authorize people's such as people such as Proxmire the 5th, 192, No. 606 (1993,3,9 authorize) and Hanson No. the 07/757th, 760, U.S. Patent application series, 1991,9,11 submit to.
Example
Test method
Peel strength
This test procedure is the peak load (unit: gram force) that is used for being determined as required usefulness when a connecting band that is used for diaper removes hook material down.
Equipment
1. can obtain a peak load and be equipped with the tensile testing machine of suitable force cell.A kind of pull test system that is suitable for is the Sintech tensile testing machine, can be available from MTSSintech, Research Triangle Park, North Carolina, trade names: the InstronMode14201 tensile testing machine has Sintech QAD (quality assurance portion) software.
2.QAD software can be available from MTS Sintech, trade names: QAD software.
3.6.2 * 10
5(90 pounds/inch of Pa
2) anchor clamps, can be available from Instron Corporation, Conton, Massachusetts, trade names: " Grips Instron 2712 (6.2 * 10
5Pa (90psi)), Instron 2712-003. ".
The fixture supports face of centimetre 4.1.27 (0.5 inch), zigzag can be available from InstronCorporation, Conton, Massachusetts.
5. assay device: 23 ± 1 ℃ of temperature, and relative humidity 50 ± 2%.
Test procedure
1. for example the sample of testing shown in Figure 13 placed above-mentioned assay device at least 4 hours before test.
2. with force cell calibration and fit on QAD software.
3. anchor clamps are installed on the tensile testing machine, are inserted on the maxillar part of tensile testing machine, closed then jaw portion with jagged fixture supports face.
4. measuring length is set for: the distance from the base of fixture supports face to the top of bottom anchor clamps is 1 inch (2.54 centimetres).
5. peel away lentamente in a bight 90 that will come across the hook material 18 of sample to be tested (seeing Figure 13), makes this hook material separate 8 mm distance from its sidepiece and edge with first substrate.
6. the experimental condition of tensile testing machine is as follows:
Crosshead speed: 250 mm/min (mm/min)
At full capacity: 10kg
Threshold value: 5%
Fracture criterion: 95%
Measuring length: 1 inch (2.54 centimetres)
Sample width: 2 inches (5.08 centimetres)
7. the weight of anchor clamps is deducted.
8. the edge of hook material being peeled away inserts the upper jaw, makes that the edge of fixture supports face is concordant with the edge 92 of hook material.
9. the longer part 94 of test specimen is inserted lower jaw, make that the position of hook material is parallel with the edge of lower jaw.Closed this lower jaw.
10. make the crosshead setting in motion.
11. the peak load when noting fracture.This fracture mode is to refer to because due to the hook material and first substrate delamination.If, then give up the result of record if hook material is opened or peak load is lower than 2500 gram forces along the marginal laceration of fixture supports face.
Shear strength
This is a kind of by/obstructed overtesting, and the hook material that is used for measuring connecting band can keep being attached to the time on one first substrate.
Equipment
1. test stand 100, form for example shown in Figure 14, it can be coupled in the forced ventilation baking oven, and this baking mutually can be available from Blue M Electric Co., Blue Island, IL, trade names: Stabil-Therm
TM
2. sleeve pipe #4 anchor clamps (3 inches (7.62 centimetres) are wide) are provided with emery cloth on the clamping part.Can be available from Publix Office Supplies with these class anchor clamps of emery cloth, trade names are 3 inches (7.62 centimetres) Bulldog Clips.Emery cloth adheres to binding agent.
3.Nalgene bottle (170 gram (6 ounces)), the screw mandrel fishhook of 1.905 centimetres (3/4 inches) or 2.22 centimetres (7/8 inches) is arranged at the top.This class bottle can be available from NalgeneBrand Products, trade names: the square bottle of wide-mouth Nalgene_170 gram (6 ounces).
4. lead sweat comprises that above 2,3 sections of described Nalgene bottles and anchor clamps can produce 1000 gram gross weights.
5. annular material spare, it can be available from Guilford Mills, Greesborough, NorthCarolina, trade names Lp086.This kind ring-shaped material spare 102 is mounted on the transverse arm of the surface of solids of test stand shown in Figure 14.This ring-shaped material spare is necessary in shape down, with the combination that guarantees and the hook material work is consistent.Therefore, such ring-shaped material spare should be changed frequently, and this replacing is preferably carried out after each test period.
6. a baking oven (for example at the forced ventilation baking oven described in the peeling strength test), it can keep the test stand shown in Figure 14, and this baking oven has 37.8 ± 1 ℃ temperature.
7. assay device: it has 23 ± 1 ℃ of temperature, and relative humidity 50 ± 2%.
8. balance, it can read 0.01 gram, and minimum load amount 1000 grams.
Test procedure
1. will treat that test specimen is delivered in the assay device, and carry out displaying at least 4 hours processing.The sample that this is to be tested is attached on the test stand, and (3/4 ") located to make the bottom margin that is present in hook material 18 on the test specimen be positioned at apart from the bottom margin 104 of ring-shaped material shown in Figure 14 1.905 centimetres.One anchor clamps 106 are attached on the bottom of test specimen shown in Figure 14.Test stand is put into baking oven.
2. the bottle (not showing bright) with 1000 grammes per square metres is attached on the anchor clamps, makes this bottle be in free suspension status, and makes to have 1.905 centimetres (3/4 inches) at the bottom of this bottle and between the bottom surface of test stand or baking oven at least.
3. per hour sample survey once notices that those samples lost efficacy.This test was carried out 20 hours altogether.The regulation that lost efficacy is meant the situation that the hook material part gets loose from connecting band fully.If hook material and ring-shaped material become completely or partially unclamped, then discarded such result of the test.The laminated piece of above-mentioned bottle, anchor clamps and ear shape will place on the bottom surface of test stand or baking oven.Result of the test is by passing through/obstructed overwriting.
Example 1
It is as follows to be ready to the connecting band test specimen.One first substrate is provided, and it comprises 23.8 gram/rice
2Polypropylene spunbond.The wide of this first substrate is 14.6 centimetres, and length comes down to successive.Hook material wide is 1.27 centimetres (being that 2.54 centimetres original width is divided into 1.27 centimetres), and length comes down to successive.Such hook material can be available from Velcro U.S.A, trade names: CFM～22.Three microballons that will have the hot-melt adhesive that to buy for 2096 times in trade names H from Findley Adhesives of about 1 mm dia, be applied on the Wugou surface of hook material, make a microballon be positioned at the center of this hook material, and two microballons are positioned at apart from the about 4.5 millimeters places of the binding agent microballon at this center in addition.Such hook material is applied on first substrate, and 3.45 * 10
5(50 pounds/inch of Pa
2) pressure down pressurization is bonding to guarantee.
One second substrate is provided, and it comprises 57.8 gram/rice
2Spunbond/meltblown/spunbonded (SMS) material.This kind SMS fabric comprises two 21.25 gram/rice
2Polyacrylic spunbond skin also is in 15.3 gram/rice
2The polypropylene melt spray-up on.The wide of this second layer substrate is 15.24 millimeters, and length comes down to successive.Employing is the hot-melt adhesive of H2096 available from Findley Adhesives trade names, and this first and second substrate stack is bonded together.This hot-melt adhesive then is with 0.0043g/ centimetre
2(0.0275 gram/inch
2) adding rate according to the vortex pattern application to second substrate.This first and second substrate is 3.45 * 10
5(50 pounds/inch of Pa
2) load under press to bonding to guarantee together.
The laminated piece of hook material, first substrate and second substrate is carried out combination of ultrasound under the following conditions.Preparation for example has No. the 5th, 110,403, United States Patent (USP) and the 5th, 096, No. 532 described rotary type ultraphonic horn bodies and rotary figuratum anvil.The peak-peak load of this horn body is 0.001 inch (25.4 microns), applies 177.9N (40 ft lbf) between horn body and anvil.By about 67 feet per minutes of the speed between rotary horn body and the anvil (20.4 meters/minute).The gait of march that is suitable for of above-mentioned laminated piece from about 0 to about 500 feet per minutes (0 to 152 meter/minute) or from about 50 to about 200 feet per minutes (15.2 meters/minute to 60.9 meters/minute).Along with the increase of this laminated piece gait of march, the peak-peak of horn body load ground increases to obtain required in conjunction with the result.
The combination of ultrasound pattern is some round dots, and the diameter of round dot is 0.064 centimetre, evenly separates on the flat surfaces of hook material, makes about 2～3% combinations under ultrasonication of hook material surface region.
Cut down test specimen from the laminated piece of above-mentioned hook material, first substrate and second substrate.These test specimens are 2 inches (5.08 centimetres) wide and 2～3 inches (5.08～7.6 centimetres) length.Hook material is extended on the width of test specimen, and making this hook material be positioned at apart from a horizontal edge of test specimen is 0.25～0.5 inch (0.64～1.27 centimetre), and is 1～2 inch (2.54～5.08 centimetres) apart from the relative horizontal edge of this test specimen.In other words, this kind test specimen generally has the configuration shown in Figure 13, and will be appreciated that first and second substrate is common the extension.
Allow these test specimens stand above-mentioned shearing and disbonded test then.
Prepared comparative sample by the above program, different just comparative sample A only are attached to hook material on first substrate by binding agent, comparative sample B then only is attached to (because the essence of combination of ultrasound, it combines first and second substrate simultaneously) on first substrate by combination of ultrasound with hook material.Make these comparative sample stand above-mentioned peeling off and shearing test then.Result of the test is listed in the table 1.
Table 1 sample is peeled off
1Shear
21 5058
30/20 comparative sample A
44637
510/10 comparative sample A
63105
70/20
(1) peel adhesion of representing with gram force.
(2) shear adhesion breaks/test number (TN).For example 0/20 refers to that promptly 0 fracture is arranged in 20 test specimens.
The meansigma methods of (3) 10 samples, standard deviation=917.
(4) only use binding agent.
The meansigma methods of (5) 99 samples, standard deviation=989.
(6) only use combination of ultrasound.
The meansigma methods of (7) 20 samples, standard deviation=982.
Can see that from table 1 during only with binding agent combination (comparative sample A), the connecting band of producing has general qualified peel adhesion, but shear adhesion power is defective.During only with combination of ultrasound (comparative sample B), the connecting band of producing has general qualified shear adhesion power, but peel adhesion is defective.Make up the connecting band that this two classes combination (sample 1) produced and then had qualified shearing and peel adhesion.
With specific embodiment the present invention has been described above, but those skilled in the art it should be understood that in the scope of appended claim book the present invention can have numerous modification and improved form.
Claims (27)
1. a manufacturing is used for the continuous constructive method of disposable absorbent with the connecting band on the medicated clothing, and the method comprises the steps:
The interlocking material that has a width and advance along a first direction of one continuous length is provided;
Described interlocking material is attached on one first substrate of advancing along described first direction to form a composite material element; It is characterized in that, the width of described interlocking material is less than the width of first substrate, and described interlocking material is attached on described first substrate, make described interlocking material be attached on described first substrate, so that interlocking material form the not edge of attachment along whole width less than described interlocking material;
Also comprise: open described composite material element to form two composite material elements that are cut into along described first direction cutting; Wherein, described interlocking material and described first substrate are all opened by cutting, make each composite material element that is cut into all include described interlocking material and described first substrate thus; And
Cut described composite material element and form along a second direction and be fit to be attached to a moisture absorption with the connecting band on the medicated clothing, described second direction is perpendicular to described first direction.
2. the method for claim 1, it also includes such step: before cutting described composite material element the described composite material element that is cut into is attached on one second substrate of advancing along described first direction.
3. method as claimed in claim 2, wherein, the described composite material element that is cut into edge before being attached on described second substrate laterally is spaced from each other.
4. method as claimed in claim 3, wherein, described second substrate was cut into before described cutting step.
5. method as claimed in claim 4, wherein: described second substrate is that cutting is opened between described two composite material elements that are cut into.
6. method as claimed in claim 5, wherein, described second substrate is to open along a sine wave pattern cutting between described two composite material elements that are cut into.
7. as the described method of one of claim 1-6, wherein, described interlocking material is to be attached on described first substrate with the thermal dual mode with bonding simultaneously.
8. as the described method of one of claim 2-6, wherein, cut described second substrate along described second direction with the position adjacent place, position that cuts described composite material element.
9. as the described method of one of claim 2-6, wherein, described interlocking material is a kind of hook material, and has from 5 millimeters to 50 millimeters width, described first substrate has from 15 millimeters to 100 millimeters width, and described second substrate has from 15 millimeters to 100 millimeters width.
10. one kind is used to make the method for disposable absorbent with the continuous formation of the connecting band on the medicated clothing, and the method comprises the steps:
Provide an interlocking material that has an overall width and advance, and it is laterally separated is the interlocking material of two continuous lengths along a first direction;
The interlocking material of described two separated continuous lengths is attached on one first substrate that has a width and advance along described first direction, to form a composite material element; Wherein, the overall width of the interlocking material of described two separated continuous lengths is less than the width of described first substrate, and described two interlocking materials of separating continuous length are to be attached on described first substrate along the whole overall width less than the interlocking material of these two separated continuous lengths, so that determine the not edge of attachment along each longitudinal edge of the interlocking material of two separated continuous lengths;
Described composite material element is attached on one second substrate that has a width and advance along described first direction, to form a band assembly;
Open described band assembly along the cutting between the interlocking material of described two separated continuous lengths of described first direction; And
Cut described band assembly along a second direction, to form connecting band, described second direction is perpendicular to described first direction.
11. method as claimed in claim 10, wherein, described interlocking material is a kind of hook material, and the described hook material of each continuous length has from 5 millimeters to 50 millimeters width, described first substrate has from 15 millimeters to 100 millimeters width, and described second substrate has from 15 millimeters to 100 millimeters width.
12. method as claimed in claim 10, wherein, described band assembly is opened by a sine wave pattern cutting between the interlocking material of described two separated continuous lengths.
13. method as claimed in claim 10, wherein, the interlocking material of described two separated continuous lengths is to be attached on described first substrate with the thermal dual mode by bonding simultaneously.
14. method as claimed in claim 12, wherein, the interlocking material of described two separated continuous lengths is to be attached on described first substrate with the thermal dual mode by bonding simultaneously.
15. one kind is used for disposable absorbent with the connecting band on the medicated clothing, described connecting band has a width, a length, one first horizontal edge and one second horizontal edge, and described connecting band comprises:
First substrate with a width and length, and described first substrate defines the width and the length of described connecting band; And
A kind ofly be attached on described first substrate and extend to interlocking material on the whole width of described connecting band with its length; It is characterized in that, the width of described interlocking material is less than the length of described first substrate, and described interlocking material is to be attached on described first substrate along the whole width less than interlocking material, so that interlocking material forms the not edge of attachment, and the width at the edge of attachment is not the 5-35% of the width of interlocking material.
16. connecting band as claimed in claim 15, wherein, described interlocking material separates one at least 2 mm distance in described first and second horizontal edge of vertically going up with described connecting band.
17. connecting band as claimed in claim 15, wherein, it also includes second substrate that is attached on described first substrate, and described first and second substrate is determined the width and the length of described connecting band.
18. connecting band as claimed in claim 15, wherein, described interlocking material separates one at least 8 mm distance in described first and second horizontal edge of vertically going up with described connecting band.
19. connecting band as claimed in claim 18, wherein, a part is for attachment is not regional between described second substrate and first substrate.
20. connecting band as claimed in claim 15, wherein, described interlocking material is to be attached on described first substrate with the thermal dual mode by bonding.
21. connecting band as claimed in claim 17, wherein, described interlocking material is to be attached on described first substrate with the thermal dual mode by bonding.
22. connecting band as claimed in claim 20, wherein, the part on the described thermal cover described interlocking material surface region 1% to 20%.
23. connecting band as claimed in claim 22, wherein, the part on the described thermal cover described interlocking material surface region 1% to 10%.
24. connecting band as claimed in claim 23, wherein, the part on the described thermal cover described interlocking material surface region 1% to 5%.
25. connecting band as claimed in claim 15, wherein, described interlocking material separates with described first and second horizontal edge of described connecting band in the vertical.
26. connecting band as claimed in claim 25, wherein, described interlocking material forms two not edges of attachment.
27. connecting band as claimed in claim 25, wherein, described interlocking material is to be attached on described first substrate with the thermal dual mode by bonding.
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10570193A | 1993-08-17 | 1993-08-17 | |
| US105701 | 1993-08-17 | ||
| US105,701 | 1993-08-17 | ||
| US14813093A | 1993-11-05 | 1993-11-05 | |
| US148130 | 1993-11-05 | ||
| US148,130 | 1993-11-05 | ||
| US263281 | 1994-06-21 | ||
| US08/263,271 US5608839A (en) | 1994-03-18 | 1994-06-21 | Sound-synchronized video system |
| US263,281 | 1994-06-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1132472A CN1132472A (en) | 1996-10-02 |
| CN1130185C true CN1130185C (en) | 2003-12-10 |
Family
ID=29715987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94193607A Expired - Fee Related CN1130185C (en) | 1993-08-17 | 1994-08-10 | Mechanical fastening tapes and method for their construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1130185C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4745628B2 (en) * | 2003-08-19 | 2011-08-10 | ユニ・チャーム株式会社 | Disposable wearing items |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4655760A (en) * | 1985-07-30 | 1987-04-07 | Kimberly-Clark Corporation | Elasticized garment and method of making the same |
| US5019073A (en) * | 1988-12-20 | 1991-05-28 | Kimberly-Clark Corporation | Disposable diaper with improved mechanical fastening system |
| EP0235014B1 (en) * | 1986-02-21 | 1991-07-31 | Kaysersberg Sa | Disposable with fastening means of the touch-and-close type |
| US5053028A (en) * | 1988-01-11 | 1991-10-01 | Minnesota Mining And Manufacturing Company | Disposable diaper with improved hook and loop fastener system |
-
1994
- 1994-08-10 CN CN94193607A patent/CN1130185C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4655760A (en) * | 1985-07-30 | 1987-04-07 | Kimberly-Clark Corporation | Elasticized garment and method of making the same |
| EP0235014B1 (en) * | 1986-02-21 | 1991-07-31 | Kaysersberg Sa | Disposable with fastening means of the touch-and-close type |
| US5053028A (en) * | 1988-01-11 | 1991-10-01 | Minnesota Mining And Manufacturing Company | Disposable diaper with improved hook and loop fastener system |
| US5019073A (en) * | 1988-12-20 | 1991-05-28 | Kimberly-Clark Corporation | Disposable diaper with improved mechanical fastening system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1132472A (en) | 1996-10-02 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Applicant after: Kimberly-Clark Worldwide, Inc. Applicant before: Kimberly-clark Corp. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: KIMBERLY-CLARK CORPORATION TO: KIMBERLY-CLARK WORLDWIDE INC. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |