CN111971012B - Pants-type disposable diaper - Google Patents

Pants-type disposable diaper Download PDF

Info

Publication number
CN111971012B
CN111971012B CN201980025757.7A CN201980025757A CN111971012B CN 111971012 B CN111971012 B CN 111971012B CN 201980025757 A CN201980025757 A CN 201980025757A CN 111971012 B CN111971012 B CN 111971012B
Authority
CN
China
Prior art keywords
extension
color
disposable diaper
pants
length
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201980025757.7A
Other languages
Chinese (zh)
Other versions
CN111971012A (en
Inventor
蔵前亮太
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kao Corp
Original Assignee
Kao Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kao Corp filed Critical Kao Corp
Publication of CN111971012A publication Critical patent/CN111971012A/en
Application granted granted Critical
Publication of CN111971012B publication Critical patent/CN111971012B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/551—Packaging before or after use

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

A disposal tape (10) is provided on the outer surface of the diaper (1). In the waste tape (10), a fixing part (12), an extension part (15) and a fastening part (18) are sequentially arranged along the length direction (X1) of the waste tape (10), and the waste tape is formed in a three-fold state by stacking in this order. In the disposal tape (10) in a three-folded state, the fixed portion (18) and the extended portion (15) are releasably joined, and the extended portion (15) and the fixed portion (12) are releasably joined. The extension part (15) can be extended in the longitudinal direction (X1) of the waste adhesive tape in an unfolded state in which the three-fold state is released. The extension (15) changes color after the start of extension and before breaking.

Description

Pants-type disposable diaper
Technical Field
The present invention relates to a pants-type disposable diaper having a disposal tape.
Background
There is known a diaper having a disposal tape capable of maintaining a rolled-up diaper from the viewpoint of easily and hygienically disposing of the disposable diaper. For example, patent document 1 describes a pants-type diaper as follows: a post-treatment tape having a colored holding tab portion on the pressure-sensitive adhesive layer side surface of the distal end portion of a buckle (tape holder) base material of the fastening portion is fixed to the back body, and the presence of the holding tab portion can be visually confirmed through the buckle base material.
Patent document 2 describes a laminated disposable band-shaped ear piece which includes a 1 st band-shaped ear piece member and a 2 nd band-shaped ear piece member which are adjacent to each other, and a plastically deformable, extensible film having a middle portion between both end portions, and which is formed by bonding one end portion of the film to the 1 st surface of the 1 st band-shaped ear piece member and bonding the other end portion of the film to the 1 st surface of the 2 nd band-shaped ear piece member. Further, with regard to an extensible film, patent document 2 describes that coloring is applied to the film and a design is applied to a portion covering the film in order to provide a visual indication of the degree of plastic deformation, and also describes that excessive extension can be avoided by this.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open No. 2001-258938
Patent document 2: european patent application publication No. 1762207
Disclosure of Invention
The present invention provides a pants-type disposable diaper having a waist opening and a pair of leg openings, and including a stomach-side portion disposed on the stomach side of a wearer in a worn state, a crotch portion disposed in a crotch portion, and a back-side portion disposed on the back side. A disposal tape is provided on the outer surface of the disposable diaper. The disposal tape is formed in a three-folded state in which a fixing portion, an extension portion, and a fastening portion fixed to an outer surface of the disposable diaper are sequentially connected in a longitudinal direction of the disposal tape, and the fixing portion, the extension portion, and the fastening portion are stacked in this order. In the waste tape in the three-folded state, the fixed portion and the extended portion are releasably joined to each other, and the extended portion and the fixed portion are releasably joined to each other. The extension portion is capable of extending in a longitudinal direction of the disposal tape in an expanded state in which the triple-folded state is released. The extension changes color after the onset of elongation and before breaking.
Drawings
Fig. 1 is a perspective view showing an embodiment of a pants-type disposable diaper of the present invention.
Fig. 2 is an expanded plan view schematically showing the skin-facing surface side in an expanded state of the pants-type disposable diaper shown in fig. 1.
Fig. 3 is a perspective view showing a disposal form of the pants-type disposable diaper shown in fig. 1.
Fig. 4 is a cross-sectional view showing the structure of a disposal tape provided on the pants-type disposable diaper shown in fig. 1.
Fig. 5 is a perspective view showing a state in which a disposal tape of the pants-type disposable diaper shown in fig. 1 is stretched.
Fig. 6 (a) and (b) are schematic views showing an example of a mode of changing the color of the extended part of the present invention.
Fig. 7 (a) and (b) are views corresponding to fig. 6 showing another embodiment.
Fig. 8 (a) and (b) are views corresponding to fig. 6 showing another embodiment.
FIG. 9 is a partial plan view showing an example of arrangement of the disposal tape of the present invention.
Detailed Description
The disposal tape having an extensible portion can be easily wound around a diaper in a rolled state, but conversely, if the disposal tape is excessively extended, the disposal tape may be broken. Therefore, there is a case where an operator who rolls a diaper into a waste form using a waste tape is not allowed to use the waste tape by sufficiently stretching the waste tape because of a fear of breaking the waste tape. In addition, in the process of elongation of the waste tape, the waste tape may be excessively elongated to the extent that breakage occurs.
Patent document 1 does not describe any elongation of the disposal tape.
Patent document 2 does not assume that the tape-like ear is extended long enough to be wound around the outer periphery of the rolled diaper. That is, even if the stretchable portion is colored or the portion covering the stretchable portion is designed as described in patent document 2, when the stretchable portion is stretched to a long length, it is difficult to reliably grasp how much the stretchable portion is stretched, and there is a concern that the band-shaped ear piece may be excessively stretched.
The present invention relates to a pants-type disposable diaper which can eliminate the above-described drawbacks of the prior art.
The present invention will be described below based on preferred embodiments of the present invention with reference to the drawings. Fig. 1 shows an embodiment of a pants-type disposable diaper of the present invention. A pants-type disposable diaper 1 (hereinafter, also simply referred to as "diaper 1") shown in the figure is one type of wearing article to be worn and used on the lower abdomen of a wearer.
As shown in fig. 1, the diaper 1 is a pants-type disposable diaper having a waist opening 1W through which a waist of a wearer passes and a pair of leg openings 1L, 1L through which lower limbs of the wearer pass.
The diaper 1 includes a front sheet, a back sheet, an absorbent body 4, and an outer cover 5 disposed on the non-skin-facing side of the absorbent body 4. The outer package 5 forms a non-skin-facing surface of the diaper 1, i.e., an outer surface of the diaper 1.
In the present specification, the "skin-facing surface" is a surface facing the skin side of the wearer when worn, i.e., a surface relatively close to the skin of the wearer, of the diaper 1 or a component thereof (e.g., the topsheet 2) as an absorbent article, and the "non-skin-facing surface" is a surface facing the opposite side (dressing side) to the skin side when worn, i.e., a surface relatively far from the skin of the wearer, of the diaper 1 or a component thereof. The term "worn" as used herein refers to a state in which the diaper 1 is maintained in a normal and proper wearing position, i.e., in a proper wearing position.
The diaper 1 includes a stomach-side portion a disposed on the stomach side of the wearer in a worn state, a crotch portion C disposed in the crotch portion, and a back-side portion B disposed on the back side of the wearer. In the diaper 1, both side edges of the outer package 5 in the longitudinal direction X of each of the front and back side portions a, B are joined to each other by a known joining means such as an adhesive, heat sealing, or ultrasonic sealing. This forms the waist opening 1W and the pair of leg openings 1L and 1L.
Fig. 2 shows the diaper 1 in an unfolded and extended state. The "developed and stretched state" of the diaper 1 means a state in which both side edge portions of the exterior body 5 in the longitudinal direction X of each of the front side portion a and the back side portion B are torn from a joined state to be brought into a developed state, and the elastic members of the respective portions are stretched to expand the diaper 1 in the developed state to a design size (the same size as when the diaper 1 is expanded to a flat shape in a state in which the influence of the elastic members is completely eliminated).
The diaper 1 has a longitudinal direction X corresponding to a direction extending from the stomach-side portion a to the back-side portion B via the crotch portion C, and a lateral direction Y perpendicular to the longitudinal direction X in a state where the diaper 1 is spread in a flat shape as shown in fig. 2. The longitudinal direction X coincides with the longitudinal direction of the absorbent main body 4. As shown in fig. 2, the diaper 1 is formed to be bilaterally symmetrical about a longitudinal centerline CL extending in the longitudinal direction X and bisecting the diaper 1 in the transverse direction Y.
The absorbent main body 4 of the diaper 1 has a front sheet 2 on the skin-facing surface side, a back sheet 3 on the non-skin-facing surface side, and an absorber 40 between the two sheets 2 and 3. In the absorber 40, the front sheet 2, the back sheet 3, and the absorber 40 are located at least in the entire crotch portion C, and extend from the crotch portion C in the longitudinal direction X to at least a part of the stomach-side portion a and the back-side portion B. In the diaper 1, the absorber 40 includes the liquid retentive absorbent core 41 and the core sheet 42 covering the absorbent core 41, but the absorber 40 may not include the core sheet.
As shown in FIG. 2, the diaper 1 has leakage preventing cuffs 6, 6 extending in the longitudinal direction X on both side portions of the absorbent main body 4 in the longitudinal direction X. The leakage- proof flanges 6 and 6 contain: a cuff-forming sheet 61 having water repellency that is continuous over the entire length of the absorbent main body 4 in the longitudinal direction X; and 1 or more cuff elastic members 62 fixed to the inside of the cuff forming sheet 61 in the transverse direction Y in an extended state in the longitudinal direction X. The leakage preventing cuffs 6 and 6 are fixed to the front sheet by cuff fixing portions (not shown) extending in the longitudinal direction X. The leakage preventing cuffs 6, 6 are provided with cuff elastic members 62 so as to rise toward the skin-facing surface side.
As materials used for the components of the diaper 1 such as the outer cover 5, the front sheet 2, the back sheet 3, and the absorber 40 included in the absorbent body 4, and the leakage preventing cuffs 6 and 6, the same materials as those conventionally used in the art can be used without particular limitation.
As shown in fig. 1, a disposal tape 10 is provided on the back side portion B of the diaper 1. The disposal tape 10 is a member for maintaining the disposal form of the diaper 1. The disposal tape 10 is located at a substantially central portion in the lateral direction Y of the back side portion B of the diaper 1. The disposal tape 10 is disposed so that the longitudinal direction thereof coincides with the longitudinal direction X of the diaper 1.
Fig. 3 shows the disposal form of the diaper 1 when it is discarded. When the diaper 1 is discarded, the diaper 1 is rolled up from the crotch portion C toward the waist opening portion 1W so that the abdomen portion a faces inward in the diaper 1 shown in fig. 1, thereby forming a rolled-up state shown in fig. 3. In the rolled diaper 1, the disposal tape 10 provided in the back side portion B is exposed outside the rolled diaper 1. As described later, the disposal tape 10 is stretched in the longitudinal direction of the tape 10, and then wound around the outer periphery of the diaper 1 which is wound up to be in a disposal form, thereby maintaining the diaper 1 in the disposal form.
The waste tape 10 is mainly composed of 3 portions. Specifically, the disposal tape 10 includes a fixed portion 12, an extended portion 15, and a fastening portion 18. These 3 portions are arranged in this order along the longitudinal direction X1 of the waste tape 10. These three portions are laminated in this order to form a three-fold state. Fig. 4 shows a cross-sectional structure of the disposal tape 10 in a three-folded state. No other parts are present between the fixing portion 12 and the extension 15, which are arranged directly in connection. Similarly, there is no other component between the extension 15 and the fastening portion 18, and they are directly connected to each other.
The fixing portion 12 of the disposal tape 10 has a fixing portion sheet 13. The fixing portion sheet 13 has a 1 st surface 13a and a 2 nd surface 13 b. In the disposal tape 10 in the three-folded state, the fixing portion sheet 13 has a 1 st surface 13a facing the extension portion 15 and a 2 nd surface 13b facing the outer surface of the diaper 1, except for a folded portion 13' described later. The fixing portion 12 has a fixing portion adhesive portion 14. The fixing portion adhesive portion 14 is provided on the 2 nd surface 13b of the fixing portion sheet 13. The fastening portion 12 is fastened to the outer surface of the back side portion B of the diaper 1 by a fastening portion adhesive portion 14. The disposal tape 10 is fixed to the outer surface of the back side portion B of the diaper 1 via the fixing portion adhesive portion 14 so as not to be attachable and detachable. As a method for fixing the waste tape 10 to the outer surface of the diaper 1, a known method such as an adhesive such as a hot-melt adhesive or welding can be used.
The extension portion 15 of the waste tape 10 is a portion that is easily extended with a weak tensile force when a tensile force is applied to the waste tape 10, and increases the length of the waste tape 10. The extension 15 has an extension sheet 16. The extension sheet 16 may have the same length as the fixing section sheet 13 described above, or may have a different length. The extension sheet 16 may have the same width as the fixing sheet 13 or a different width. The extension sheet 16 has a 1 st surface 16a and a 2 nd surface 16 b. In the disposal tape 10 in the three-folded state, the extension sheet 16 has a 1 st surface 16a facing the fastening portion 18 and a 2 nd surface 16b facing the fixing portion 12, except for a folded portion 16' described later. The extension 15 has an extension adhesive portion 17. The extension adhesive portion 17 is provided on the 2 nd surface 16b of the extension sheet 16. The extension adhesive portion 17 is a member for releasably joining the extension 15 and the fixing portion 12 of the triple-folded waste tape 10. Therefore, the extension adhesive portion 17 is preferably made of a low-adhesion adhesive.
In the above-described fastening portion 12, the fastening portion sheet 13 has a folded portion 13' in which one end of the disposal tape 10 in the longitudinal direction X1 is folded back toward the extended portion 15. The folded-back portion 13' is joined to one end of the extension sheet 16 of the extension 15 on the 2 nd surface 16b side. Thus, the fixing portion 12 is provided in direct connection with the extension portion 15. As a method of continuously providing the fixing portion 12 and the extension portion 15, a known method such as an adhesive such as a hot-melt adhesive or welding can be used.
The fastening portion 18 of the disposal tape 10 is a portion which can be fastened to any position on the outer surface of the diaper 1 and which is fastened to the outer surface of the diaper 1 when the disposal form of the diaper 1 is maintained by the disposal tape 10. The fastening portion 18 forms a tip end region of the disposal tape 10 and has a fastening portion sheet 19. The fastening portion sheet 19 may be the same length as the fixing portion sheet 13 or the extension portion sheet 16, or may be a different length. The fastening portion sheet 19 may have the same width as the fixing portion sheet 13 or the extension portion sheet 16, or may have a different width. The fixing portion sheet 19 has a 1 st surface 19a and a 2 nd surface 19 b. In the disposal tape 10 in the three-folded state, the 2 nd surface 19b of the sheet 19 for fastening portion faces the extension portion 15. The fastening portion 18 includes a fastening portion adhesive portion 20. The fastening portion adhesive portion 20 is provided on the 2 nd surface 19b of the fastening portion sheet 19. The fastening portion adhesive portion 20 is a member for releasably joining the fastening portion 18 of the three-folded disposal tape 10 to the extension portion 15, and securely fastening the fastening portion 18 to an arbitrary position on the outer surface of the diaper 1. From this viewpoint, the degree of adhesiveness of the adhesive section 20 for a fastening section is preferably determined.
In the extension sheet 16 of the extension 15 described above, one end in the longitudinal direction X1 is folded back toward the fastening portion 18 to form a folded-back portion 16'. The folded-back portion 16' is joined to one end of the fastening portion sheet 19 of the fastening portion 18 on the 2 nd surface 19b side. Thereby, the extension 15 and the fastening portion 18 are provided in direct connection. As a method of providing the extension portion 15 and the fastening portion 18 continuously, a known method such as an adhesive such as a hot-melt adhesive or welding can be used.
Further, a tab 21 is joined to the second end of the fastening portion sheet 19 of the fastening portion 18 on the 2 nd surface 19b side. The tab piece 21 is a piece separate from the fixing portion piece 19.
The disposal tape 10 composed of 3 portions as described above is folded into three in a zigzag shape (see fig. 4, folded into three layers). The disposal tape 10 is attached to the back side portion B of the diaper 1 so that the free end of the disposal tape 10 in the three-folded state, that is, the attachment portion of the grip piece 21 of the fastening portion 18 faces the waist opening 1W side of the diaper 1.
When the diaper 1 is maintained in the rolled-up state, the disposal tape 10 is brought from the three-folded state to the unfolded state in which the three-folded state is released. Here, the "unfolded state in which the three-folded state is released" refers to a state in which the three-folded waste tape 10 is linearly unfolded by peeling the extension portion 15 of the waste tape 10 from the fixing portion 12 and peeling the extension portion 15 from the fastening portion 18. Hereinafter, the "expanded state in which the triple-folded state is released" will also be simply referred to as "expanded state".
In the unfolded state, the disposal tape 10 has a fastening portion 18 at one end of the extension portion 15, a fixing portion 12 at the other end of the extension portion 15, and the fastening portion 18, the extension portion 15, and the fixing portion 12 are arranged linearly.
The extension portion 15 can be extended in the longitudinal direction X1 of the disposal tape 10 in the unfolded state in which the three-fold state is released. In the unfolded state, the disposal tape 10 can be stretched by the force of a person. For example, the fastening portion 18 can be grasped with a finger or the like and pulled in the longitudinal direction X1 of the disposal tape 10, whereby the extension portion 15 can be extended (see fig. 5).
A process of extending the extended portion 15 will be described. The extension 15 continues to elongate after the initiation of elongation until the extension breaks. Here, "start of elongation" of the elongated portion 15 means a time point at which the tensile strength exhibits the first maximum point in the process of elongation of the elongated portion 15 by the following [ method of elongating an elongated portion ], and "at break" of the elongated portion 15 is a time point at which the breaking strength exhibits in the process of the elongation. Hereinafter, the process of "after the start of elongation and before the breakage" of the elongated portion 15 is also referred to as "elongation process", and the elongated portion is elongated in the following manner unless otherwise specified.
[ method of elongating an elongated portion ]
The three-folded waste tape is unfolded by peeling the extension from the fixing portion to release the three-folded state. Subsequently, the length direction of the waste tape was aligned with the stretching direction, and the distance between the chucks was set to 10mm, and the extension portion was mounted on the chuck of a tensile tester (for example, model "AUTOGRAPH AG-X", manufactured by Shimadzu corporation). The extension portion attaches the portion between the two attachment points to the chuck avoiding the attachment point with the adjacent anchor or securing portion. Next, the stretched portion was stretched at a rate of 300mm/min, and the tensile strength (N) during the stretching process, which varied with the stretching distance, was measured. In this elongation process, the time point at which the first maximum point of the tensile strength is exhibited is defined as the "start of elongation" of the elongation portion. The first maximum is the earliest maximum in the curve of measured tensile strength (N). When the first local maximum point is not known or hardly observed, the maximum load at the time of elongation between 30% and 70% of the elongation is regarded as the first local maximum point strength. The maximum value of the tensile strength that varies with the tensile distance is defined as the breaking strength, the time point at which the breaking strength is exhibited is defined as "at break" of the extended portion, and the elongation at break is defined as "elongation 100%".
The diaper 1 is constructed such that the extensions 15 undergo a color change during extension. That is, the color of the extension portion 15 before the start of extension is different from the color of the extension portion before the start of extension until the break.
The diaper 1 can be easily rolled up by a guardian or caregiver of an infant who has rolled the diaper 1 into a disposal form, grasping the fastening portion 18 with his or her fingers or the like, and stretching the disposal tape 10 in the longitudinal direction X1 to extend the extension portion 15. In the case of using a conventional disposal tape configured such that the extension portion 15 is extensible, the extension portion 15 may be excessively extended to break, and the disposal form may not be maintained.
In contrast, in the diaper 1, since the color of the extension 15 changes when the extension 15 is extended to a certain extent in the process from the start of extension to the time of breakage, for example, when the color of the extension 15 changes, information can be provided to make the operator recognize that the extension 15 should not be further extended, thereby preventing the operator from excessively extending the extension 15 and breaking the extension.
This allows the operator to sufficiently extend the waste tape without excessively extending the extension portion 15 and without fear of breaking. Therefore, the workability of easily winding the waste tape around the rolled diaper is excellent.
The "information providing the operator with the recognition that the extension portion should not be further extended" is, for example, a phrase "do not need to be further extended if the color is changed", and may be a phrase, a symbol, a combination thereof, or the like, and such information may be displayed on, for example, a component of the diaper, a package of the diaper, an advertisement related to the diaper, or a web page.
From the viewpoint that a person easily perceives a change in color visually, the change in color of the extended portion 15 preferably satisfies the following condition (1) or the following condition (2).
Condition (1): the difference in haze value (haze value) (JIS K7105) between the elongation 15 before the start of elongation and the elongation 15 during elongation is 20 or more.
Condition (2): color difference (Δ E) between the extension 15 before the start of extension and the extension 15 during extension*Value) is 5 or more.
The haze value of condition (1) was measured in the following manner.
[ measurement method of haze value ]
The haze value (haze value) is measured based on JIS K7105 using a commercially available haze meter, for example, model NDH5000 manufactured by japan electrochromic industries, and is calculated by the following formula (1).
H＝(Td/Tt)×100……(1)
Here, H is a haze value (%), Td is a diffusion transmittance (%), and Tt is a total light transmittance (%). The measurement is performed so that the measurement position before the start of the elongation overlaps the measurement position during the elongation. 10 measurements were made, and the average value was taken as the measurement value.
The haze value is an index indicating the degree of transparency, and is used as one of indexes indicating the magnitude of change in color in the present invention.
Color difference (. DELTA.E) of Condition (2)*Value) was measured in the following manner.
[ color difference (Δ E)*Value) measuring method ]
As the color difference meter, a simple spectrocolorimeter NF333 (trade name) manufactured by japan electro-chromatic industries co. "L" defined in JIS Z8729*a*b*In the color system of*Indicates lightness, a*、b*Direction of the color, a*Indicating a generally red direction, -a*Indicating a substantially green direction, b*Indicating a substantially yellow direction, -b*Indicating a substantially blue direction. Delta E*Is a value obtained by the following formula (2).
ΔE*＝[(ΔL*)2+(Δa*)2+(Δb*)2]1/2……(2)
Here,. DELTA.L*、Δa*、Δb*Respectively L between 2 colors*Value a*Value b*The difference in value. For example Δ L*By Δ L*＝L* 2-L* 1And (4) calculating.
In the measurement method using the above-described simple spectrocolorimeter NF333, a spectroscopic colorimeter of a spacer type (stapler type) is previously mounted
Figure GDA0002723345170000091
ND1 (g)The sensor 10 was measured at a light source C/2 and a view angle of 2 DEG using an O-ring (small) at the tip of the sensor.
In the measurement, the waste tape in the expanded state is placed on white paper so that the visual side surface of the operator of the extension portion faces upward when the waste tape is stretched, the visual side surface is brought into contact with the tip portion of the sensor, and the extension portion and the tip portion of the sensor are pressed so as not to generate a gap therebetween, thereby performing measurement. L white paper with waste adhesive tape*a*b*L in the color system*A value of 90 to 100, a*The value is-1- +1, b*The value is-1- + 1. The measurement is performed so that the measurement position before the start of the elongation overlaps the measurement position during the elongation. Further, when the extension portion 15 includes a colored portion having a color and a white or transparent non-colored portion having no color, measurement is performed at the position of the colored portion. 10 measurements were made, and the average value was taken as the measurement value.
Whether or not the color of the extension 15 has changed is preferably determined by whether or not the above-described haze value or color difference (Δ E) is satisfied*Value) is equal to or greater than a predetermined value. That is, it is preferable that the difference satisfying only the haze value is 20 or more [ condition (1) ] and the color difference (. DELTA.E)*Value) is 5 or more (condition (2), and it is further preferable that the color difference (Δ E) is satisfied*Value) is 5 or more [ condition (2) ], it is determined that the elongated portion 15 has undergone a color change. The change in color of the extension may also satisfy the haze value and the color difference (Δ E)*Value) of the two conditions.
As described above, the extension 15 is formed such that the extension 15 undergoes a color change before and during the extension. As the structure for changing the color, preferably, the structure for changing the color after being elongated to a certain extent, there can be mentioned a method of using a member of a material whose color changes as a member constituting the elongated portion (hereinafter referred to as "primary processing method"), a method of using a member whose color changes by secondary processing as a member constituting the elongated portion (hereinafter referred to as "secondary processing method"), and the like.
As the primary processing method, a material that changes color when subjected to an elongation stimulus is preferably used. Examples of such a material include a polyester resin mixed with fluorescent dyes having different emission colors depending on the aggregation state and the dispersion state. In this polyester material, the fluorescent dye is in an aggregated state before the start of elongation, but the fluorescent dye is in a dispersed state with the elongation, and thus the display color of the fluorescent dye is different between before the start of elongation and during the elongation. The material may be, for example, a sheet in which colloidal photonic crystals are dispersed in an elastic resin such as an elastomer. In this sheet, the refractive index or lattice spacing of the colloidal photonic crystal is adjusted by elongation, and thus the color of the sheet before the initiation of elongation is different from that during elongation. Further, as the material, for example, an extensible sheet coated with a microencapsulated color former and developer can be cited. The sheet is a sheet in which microcapsules are broken when pressure is applied thereto by elongation, and a color former released from the microcapsules reacts with a developer to develop a predetermined color.
As the secondary processing method, it is preferable to use a member colored in a pattern in which the arrangement of colored portions having a color or the area ratio changes with elongation. Examples of such patterns are shown in fig. 6 to 8. Further, the area ratio of the colored portion is per unit area (1 mm)2) The ratio of the area of the colored portion (2).
The patterns shown in fig. 6 (a) and (b) are patterns in which the color tone of the colored portion becomes darker during the elongation than before the elongation. In the patterns shown in fig. 6 (a) and (b), the colored portions extend in the longitudinal direction X1, and the colored portions and the uncolored non-colored portions are alternately arranged in the width direction Y1 which is orthogonal to the longitudinal direction X1. The colored portions shown in fig. 6 (b) extend continuously in the longitudinal direction X1, and the colored portions shown in fig. 6 (a) extend at intervals in the longitudinal direction X1.
In the pattern shown in fig. 6 (a) and (b), the extension 15 is elongated in the longitudinal direction X1, whereby the length in the width direction Y1 is narrowed. As a result, the colored portions arranged at intervals in the width direction Y1 are arranged so as to be close to each other, and the area ratio of the colored portions is higher than that before the elongation. As a result, the color tone of the colored portion can be perceived to be darker than that before the extension.
The patterns shown in fig. 7 (a) and (b) are patterns in which the color tone of the colored portion becomes lighter during the elongation than before the elongation. The pattern shown in fig. 7 (a) has a colored portion having a certain size. In the pattern shown in fig. 7(b), the colored portions and the uncolored non-colored portions are alternately arranged in the longitudinal direction X1.
In the pattern shown in fig. 7 (a), the colored portion is stretched as the extension portion 15 is extended, and thus the color tone of the colored portion can be perceived to be lighter than before the extension. In the pattern shown in fig. 7(b), the non-colored portion stretches due to the elongation, and thus the area ratio of the colored portion becomes lower than that before the elongation. As a result, the color tone of the colored portion can be perceived to be lighter than before the extension.
The patterns shown in fig. 8 (a) and (b) are patterns in which a figure or a symbol can be perceived by stretching, and the color of the colored portion changes during the stretching. In this case, the color tone of the colored portion may be lighter or darker. In the pattern shown in fig. 8 (a), a pattern compressed before stretching and having no shape perceivable thereto expands as stretching occurs, and thus a predetermined shape can be perceived. In the pattern shown in fig. 8 (b), a symbol that is compressed before expansion and cannot be recognized is expanded by expansion, and thus a predetermined symbol can be recognized. Such a pattern can pass through a chromatic aberration (Δ E)*Value) to confirm a change in color of the colored portion.
The pattern to be colored by the secondary processing method may be any of the above-described pattern in which the color tone of the colored portion becomes darker during the elongation than before the elongation, the pattern in which the color tone of the colored portion becomes lighter during the elongation than before the elongation, and the pattern in which the figure or symbol is perceivable and the color of the colored portion changes with the elongation, or may be a combination of 2 or more of these patterns.
From the viewpoint of more reliably sensing the change in color, the difference in haze value between before and during extension of the extended portion 15 is preferably 20 or more, more preferably 30 or more, and furthermore preferably 90 or less, more preferably 80 or less, and furthermore preferably 20 or more and 90 or less, more preferably 30 or more and 80 or less.
From the same viewpoint as above, the difference in color (Δ E) between before and during extension of the extended portion 15*Value) is preferably 5 or more, more preferably 10 or more, and further preferably 80 or less, more preferably 50 or less, and further preferably 5 or more and 80 or less, more preferably 10 or more and 50 or less.
In the extension portion 15, the color during the extension process may be changed from the color before the extension, and the timing at which the color change occurs is not particularly limited. For example, the elongated portion 15 may change in color at a time point when the predetermined tensile strength is reached during the elongation process, or may change in color at a time point when the predetermined elongation length is reached. Further, the extension 15 may also vary in multiple colors. For example, the color may be varied in multiple stages according to the tensile strength and/or elongation length.
From the viewpoint of more reliably notifying the operator of the information that the fracture is about to occur, when the elongated portion 15 is elongated by the above-described [ method of elongating an elongated portion ], it is preferable that the color change occurs before the tensile strength reaches 70%, more preferably 60%, of the fracture strength Pe of the elongated portion 15. At this time, the color of the extension 15 has changed at the time point when the tensile strength becomes the value.
From the viewpoint of more reliably notifying the operator of the information of the approach to the elongation limit after the elongation of the elongated portion 15 to a certain extent, the tensile strength Pb at which the color of the elongated portion 15 changes is preferably equal to or greater than the intermediate strength between the tensile strength Pa at which the elongated portion 15 starts to elongate and the breaking strength Pe of the elongated portion 15. The intermediate strength is 1/2 strength which is the sum of the value of the tensile strength Pa at which the extension portion 15 starts to elongate and the value of the breaking strength Pe of the extension portion 15.
The tensile strength Pa at which the extension 15 starts to elongate and the breaking strength Pe of the extension 15 are measured by the above [ method of elongating an extension ].
The tensile strength Pb of the elongated portion 15 at which the color change occurs is such that elongation occurs during the elongation process of [ the method of elongating an elongated portion ]Tensile strength at the time point when the color of the long part changes. The time point at which the color change of the extension occurs is a time point at which the difference between the haze values (JIS K7105) of the extension 15 before the start of extension and the extension 15 during extension is 20, or the color difference (Delta E) between the extension 15 before the start of extension and the extension 15 during extension (Delta E)*Value) is 5.
From the viewpoint of facilitating the elongation of the disposal tape 10 and preventing accidental elongation, the tensile strength Pa at which the elongation portion 15 starts to elongate is preferably 1.0N or more, more preferably 3.0N or more, further preferably 6.5N or less, more preferably 5.0N or less, further preferably 1.0N or more and 6.5N or less, and more preferably 3.0N or more and 5.0N or less.
In order to sufficiently elongate the waste tape 10 and further suppress the breakage due to excessive elongation, it is preferable that the color change occurs until the tensile strength reaches 13N when the elongation 15 is elongated by the above-described [ method of elongating an elongation ]. From the same viewpoint as described above, the tensile strength Pb of the elongated portion 15, which undergoes a color change, is preferably 8N or more, more preferably 12N or more, and is preferably 18N or less, more preferably 15N or less, and is preferably 8N or more and 18N or less, more preferably 12N or more and 15N or less.
From the viewpoint of securing the strength of the extended portion 15, the breaking strength Pe of the extended portion 15 is preferably 20N or more, more preferably 25N or more, and furthermore, preferably 50N or less, more preferably 45N or less, and furthermore, preferably 20N or more and 50N or less, more preferably 25N or more and 45N or less.
From the viewpoint of more reliably securing the length to be wrapped around the diaper, the extension portion 15 is preferably extensible to 150mm or more, more preferably 200mm or more, and still more preferably 250mm or more. The extensible length is the maximum length that enables the extension 15 to be extended. The extended length of the extended portion 15 represented by the maximum length is a length including a joint region with a fixed portion or a fixed portion at both ends of the extended portion, and is measured by a [ method for measuring extended length in which color of the extended portion changes ] described later.
In addition, in order to notify the operator that the extension is sufficiently extended and further to suppress the excessive extension, when the extension 15 can be extended to 150mm or more, it is preferable that the extension 15 is changed in color before the extension length reaches 120 mm.
From the viewpoint of further suppressing the elongation of the elongated portion from being excessively elongated, when the elongated portion 15 can be elongated to 150mm or more, the elongation length at which the color of the elongated portion changes is preferably 120mm or more, more preferably 150mm or more, and further preferably 180mm or more.
[ method of measuring extension length in which color of extension changes ]
The elongation length of the elongated portion 15 and the elongation length at which the color changes are measured by the following method.
The disposal tape in the three-folded state is released from the three-folded state by peeling the extension portion from the fixing portion. Next, the waste tape was mounted so that the longitudinal direction thereof was aligned with the stretching direction, and the end of the chuck of a tensile tester (for example, model "AUTOGRAPH AG-X" manufactured by shimadzu corporation) was positioned at the joint between the extension portion and the fixing portion or the fastening portion. Next, the sheet was stretched at a speed of 300mm/min, and the tensile strength was measured while varying with the stretching distance. In this elongation process, the time point at which the first maximum point of the tensile strength is exhibited is defined as the "start of elongation" of the elongation portion. When the first local maximum point is not known or observed, the maximum load at the time of elongation between 30% and 70% of the elongation is regarded as the first local maximum point strength. The maximum value of the tensile strength that varies with the tensile distance is defined as the breaking strength, the time point at which the breaking strength is exhibited is defined as "at break" of the extended portion, and the elongation at break is defined as "elongation 100%". The length of the elongated portion in the process of elongating the elongated portion by this method is taken as an elongation length. In the above process, the total value of the stretching distance at the time point when the color of the elongated portion 15 changes and the length of the elongated portion 15 before the elongation is set as the elongation length at which the color of the elongated portion 15 changes. That is, in the present measuring method, elongation isThe total length of the extension 15 at the time point when the color change of the portion 15 occurs. The time point at which the color change of the elongated part occurs is a time point at which the difference between the haze values (JIS K7105) of the elongated part 15 before the start of the elongation and the elongated part 15 elongated by the present measuring method is 20, or the color difference (. DELTA.E) between the elongated part 15 before the start of the elongation and the elongated part 15 elongated by the present measuring method*Value) is 5.
From the viewpoint of informing the operator of the information on the length near break at the time of elongation and more appropriately elongating the elongated portion, the elongation process at the time of elongation of the elongated portion 15 by the above-described [ method for measuring the elongation length in which the color of the elongated portion changes ] is divided into: 2/3 stage 1 of elongation from the beginning of elongation to maximum length; and a 2 nd stage extending from 2/3 of the maximum length to the maximum length, the 2 nd stage preferably has a greater amount of color change than the 1 st stage. That is, the difference in color between before elongation and the 2 nd stage is preferably larger than the difference in color between before elongation and the 1 st stage. Further, in the present specification, "amount of change in color" is a difference or color difference (Δ E) in haze values of two objects to be compared*Value). The 1 st stage and the 2 nd stage are defined according to the extension length of the extended portion extended in the above-described [ method for measuring an extension length in which the color of the extended portion changes ].
From the viewpoint of more reliably achieving the above-described effects, when the difference in haze value represents the amount of change in color, it is preferable that H2 be larger than H1 when the difference in haze value between before elongation and the 2 nd stage is H2 and the difference in haze value between before elongation and the 1 st stage is H1. In this case, the difference between H2 and H1 is preferably 10 or more, more preferably 15 or more, and preferably 90 or less, more preferably 80 or less, and preferably 10 or more and 90 or less, more preferably 15 or more and 80 or less.
From the same viewpoint as above, the chromatic aberration (. DELTA.E) is used*Value) represents the amount of change in color, the difference in color (Δ E) between before extension and the 2 nd stage*Value) C2, the color difference (Delta E) between pre-elongation and stage 1*Value) is C1, C2 is preferably larger than C1. In this case, the difference between C2 and C1 is preferably 3 or more, more preferably 5 or moreFurther, it is preferably 80 or less, more preferably 50 or less, and further preferably 3 or more and 80 or less, more preferably 5 or more and 50 or less.
The amount of change in color is preferably a difference in haze value and a color difference (Δ E)*Values) are within the above ranges.
From the same viewpoint as described above, it is preferable that the extension portion 15 does not change its color in the 1 st stage. That is, it is preferable that the extension portion 15 does not change in color until it is extended from 2/3 at the maximum length from the start of extension.
In the present specification, "no color change occurs" means that the difference in haze value and the color difference (Δ E) in the above conditions (1) and (2)*Value) both are smaller than the prescribed value. In addition, when the change in color is caused by a pattern colored by the secondary processing method, and includes a pattern in which a figure or a symbol is perceived along with the above-described elongation and the color of the colored portion changes, "no change in color" means a color difference (Δ E)*Value) is less than the prescribed value.
The maximum length during the elongation process, that is, the maximum length at which the elongated portion 15 can be elongated is the entire length of the elongated portion 15 at the time point when the tensile strength is the maximum value, that is, the breaking strength is exhibited in the above-described [ method for measuring the elongation length in which the color of the elongated portion changes ].
For example, in the case where the maximum length of the extended portion 15 is 150mm in the extension process of [ the method for measuring the extension length in which the color of the extended portion changes ], the stage of the extended portion 15 extending from the start of the extension to 100mm is the 1 st stage, and the stage of the extension from 100mm to 150mm is the 2 nd stage.
From the viewpoint of sufficiently extending the extension portion to facilitate the operation of wrapping the diaper with the disposal tape, the extension portion 15 is preferably extendable to a length that is 4 times or more, more preferably 5 times or more, and even more preferably 6 times or more, a length that is 12 times or less, more preferably 10 times or less, and even more preferably 8 times or less, and a length that is 4 times or more and 12 times or less, more preferably 5 times or more and 10 times or less, and even more preferably 6 times or more and 8 times or less. The extensible length of the extended portion 15 is the total length of the extended portion 15 at the time point when the breaking strength is exhibited, which is measured by the above-described [ method for measuring an extended length in which the color of the extended portion changes ].
In addition, from the viewpoint of not breaking the extension portion and extending it sufficiently, when the extension portion 15 can be extended to 4 times or more the length before extension, the extension length at which the color of the extension portion changes is preferably 2 times or more the length before extension, and more preferably 3 times or more the length.
From the same viewpoint as above, when the extension portion 15 can be extended to 4 times or more the length before extension, it is preferable that the 4-time extension stage is larger than the amount of change in color in the 3-time extension stage when the extension process of the extension portion 15 when extended is divided into the 3-time extension stage of the length from the start of extension to 3 times the length before extension and the 4-time extension stage of the length from 3 times the length before extension to 4 times the length before extension. That is, the difference in color between the 3-fold elongation stage and the 4-fold elongation stage is preferably larger than the difference in color between the 3-fold elongation stage and the pre-elongation stage. The 3-fold elongation stage and the 4-fold elongation stage are defined according to the elongation length of the elongated portion to be elongated in the above-described [ method for measuring an elongation length in which the color of the elongated portion changes ].
From the viewpoint of more reliably achieving the above-described effects, when the difference in haze value represents the amount of change in color, it is preferable that H4 be larger than H3 when the difference in haze value in the 4-fold extension stage is H4 and the difference in haze value in the 3-fold extension stage is H3. In this case, the difference between H4 and H3 is preferably 10 or more, more preferably 15 or more, and preferably 90 or less, more preferably 80 or less, and preferably 10 or more and 90 or less, more preferably 15 or more and 80 or less.
From the same viewpoint as above, the chromatic aberration (Δ E) is used*Value) represents the amount of change in color, the color difference (Δ E) between the 3-fold extension stage and the 4-fold extension stage is set to be*Value) C4, elongationColor difference (Δ E) between pre-elongation and 3-fold elongation*Value) is C3, C4 is preferably larger than C3. In this case, the difference between C4 and C3 is preferably 3 or more, more preferably 5 or more, and further preferably 80 or less, more preferably 50 or less, and further preferably 3 or more and 80 or less, more preferably 5 or more and 50 or less.
The amount of change in color is preferably a difference in haze value and a color difference (Δ E)*Values) are within the above ranges.
From the same viewpoint as described above, it is preferable that no color change occurs in the 3-fold elongation stage.
The waste tape 10 is wound around the outer surface of the rolled diaper 1. From the viewpoint of making the color change of the extension 15 more perceptible, it is preferable that the difference in color between the extension 15 that undergoes the color change and the outer surface of the diaper 1 is greater than the difference in color between the extension 15 that does not undergo the color change and the outer surface of the diaper 1. At this time, the color of the extension 15 is compared with the color of the central portion in the lateral direction Y of the outer surface of the diaper 1.
From the same viewpoint as described above, the extension portion 15 before color change is preferably the same color or similar color as that of the vicinity of the fixed portion 12 in the outer surface of the diaper 1, and more preferably the same color or similar color as that of the portions of the outer surface of the diaper 1 located on both sides in the width direction Y1 of the fixed portion 12. The vicinity of the fixed portion 12 in the outer surface is a peripheral region of a portion of the outer surface joined to the fixed portion 12 via the fixing-portion adhesive portion 14.
From the same viewpoint as described above, it is preferable that the extension 15 having a color change be the same as or similar to the color of the fixing portion 12, the fastening portion 18, or the grip piece 21.
The same or similar color means that the difference in haze value between the two is less than 20 or the difference in color between the two is less than 5.0.
From the viewpoint of suppressing the separation of the fixed part 12 from the outer surface of the diaper 1 when the disposal tape is stretched, the tensile strength Pa at which the extension part 15 starts to extend is preferably lower than the separation strength Pg between the diaper 1 and the fixed part 12. From the viewpoint of more reliably achieving the above-described effects, the ratio (Pg/Pa) of the peel strength Pg between the diaper 1 and the fixed portion 12 to the tensile strength Pa at which the extension portions 15 start to be extended is preferably 3 or more, more preferably 4 or more, further preferably 8 or less, more preferably 7 or less, further preferably 3 or more and 8 or less, more preferably 4 or more and 7 or less. The tensile strength Pa at which the extension portion 15 starts to elongate is measured by the above-described [ method of elongating an extension portion ].
The peel strength Pg between the diaper 1 and the fixed part 12 is measured by the following method.
[ method of measuring the peel strength between diaper and fixed part ]
The disposal tape in the three-folded state of the diaper is brought into an unfolded state in which the three-folded state is released. Then, the longitudinal direction of the waste tape was aligned with the stretching direction, and the fixed portion and the sheet forming the outer surface of the diaper were mounted between chucks of a Tensilon tensile tester (for example, model "AUTOGRAPH AG-X", manufactured by Shimadzu corporation, Ltd.). In this attachment, the portion other than the joint of the extension portion is attached to the chuck on the disposal tape side, and the portion spaced apart by 10mm from the crotch side end portion of the fixing portion in the longitudinal direction is attached to the chuck on the diaper side. The distance between the chucks was set to 50 mm. Then, the diaper was stretched at a rate of 300mm/min to peel the fixed part from the outer surface of the diaper, and the maximum value of the tensile strength in this process was defined as the peel strength between the diaper and the fixed part.
The diaper 1 has a high rigidity region where the absorbent core 41 is present on the inner side in the thickness direction of the diaper 1, and a low rigidity region where the rigidity is lower than the high rigidity region. In the diaper 1, a waist gather WG and a leg gather LG (see fig. 1) are formed in the peripheral edge region of the diaper 1. The peripheral region is a region on the waist end side of the absorber 40. In order to improve the stretchability of the waist gathers WG and the leg gathers LG, the waist gathers WG and the leg gathers LG are often formed in a low stiffness region.
From the viewpoint of stably applying a tensile force to the extension portion 15 and the fastening portion 18, at least a part of the fixing portion 12 is preferably disposed in a high rigidity region located inward of the low rigidity region. In this case, the fixing portion 12 may be disposed entirely in the high rigidity region. The term "more inward than the low rigidity region" means that the region is located inward in both the longitudinal direction X and the transverse direction Y than the low rigidity region. As a mode of disposing the disposal tape 10 in the high rigidity region, for example, a mode in which the longitudinal direction inner side of the fixing portion 12 overlaps the absorbent core 41 can be cited. As shown in fig. 9, the fixing portion 12 may be entirely overlapped with the absorbent core 41.
As described above, the diaper 1 has the elastic member 62 extending and contracting in the longitudinal direction X in the leakage preventive cuff 6 in addition to the above elastic members. Hereinafter, a portion which is expanded and contracted in a predetermined direction such as the vertical direction X and the lateral direction Y by such an elastic member or the like is also referred to as an expansion/contraction portion.
There is a possibility that irregularities may be formed on the outer surface of the diaper 1 due to the stretchability of the stretchable portion, and when the disposal tape is disposed at a location where such irregularities are formed, there is a fear that accidental peeling may occur. From the viewpoint of reliably fixing the disposal tape 10 to the outer surface of the diaper 1, it is preferable that the fixing portion 12 of the disposal tape 10 is located at a position not overlapping with the stretchable portion in a plan view of the diaper 1. As such an aspect, there can be mentioned a configuration in which the end 12a of the fixed portion 12 on the crotch portion C side in the longitudinal direction X is positioned closer to the open end 50 of the waist opening 1W than the stretchable portion stretchable in the longitudinal direction X (see fig. 2). At this time, in the back portion B, the end portion 12a of the fixing portion 12 on the crotch portion C side is disposed on the open end 50 side of the waist opening 1W, compared with the end portion of the cuff elastic member 62 on the back portion B side and the end portion of the elastic member 52 on the back portion B side disposed along the leg opening. That is, in the longitudinal direction X, the length L10 between the end 12a of the fixed portion 12 on the crotch portion C side and the waist opening end 50 of the back portion B is shorter than the length L12 between the cuff elastic member 62 and the waist opening end 50 and the length L14 between the elastic member 52 disposed at the leg opening portion and the waist opening end 50 (see fig. 2).
In order to more reliably join the disposal tape 10 to the outer surface of the diaper 1, when the length between the end portion 12a on the crotch portion C side of the fixed portion 12 and the waist opening end 50 of the back portion B is set to L10 (see fig. 2) and the length between the cuff elastic member 62 and the waist opening end 50 is set to L12 (see fig. 2), the ratio of L12 to L10 (L12/L10) is preferably 1.05 or more, more preferably 1.1 or more, further preferably 2.0 or less, more preferably 1.75 or less, and further preferably 1.05 or more and 2.0 or less, more preferably 1.1 or more and 1.75 or less.
From the same viewpoint as described above, when the length between the elastic member 52 disposed in the leg opening portion 1L and the waist opening end 50 is set to L14 (see fig. 2), the ratio of L14 to L10 (L14/L10) is preferably 1.1 or more, more preferably 1.2 or more, further preferably 2.5 or less, more preferably 2.2 or less, further preferably 1.1 or more and 2.5 or less, more preferably 1.2 or more and 2.2 or less.
In order to make the extension portion 15 extensible, an appropriate material may be selected as the sheet 16 constituting the extension portion 15. Specifically, as a constituent material of these sheets 16, for example, an extensible film can be used. Examples of such a film include multilayer films such as a monolayer film and a coextruded film. As a material constituting the extensible film, for example, polyolefin such as linear low density polyethylene is preferable. Further, at least 1 material selected from the group consisting of polyvinyl chloride, ethylene-vinyl acetate copolymer, and polyvinyl alcohol is also preferable. Further, it is also advantageous to use a material having a permanent set of at least 50%, more preferably at least 70%.
As the sheets 13 and 19 constituting the fixing portion 12 or the fastening portion 18, conventionally used known materials such as a resin sheet (plastic sheet, film, etc.) made of polyolefin-based, polyester-based, polyamide-based, or polyurethane-based resin (including a combination of 2 or more types), a nonwoven fabric, and a woven fabric can be used without particular limitation. Even if the constituent material of the fixing section sheet 13 is stretchable, the stretchability is not exhibited in the portion fixed to the outer surface of the diaper 1.
As the extension adhesive portion 17 for releasably joining the extension 15 and the fixed portion 12 and the fastening portion adhesive portion 20 for releasably joining the fastening portion 18 and the extension 15, for example, a rubber adhesive and an acrylic adhesive are generally used, and a rubber adhesive is preferably used. Examples of the rubber-based adhesive include synthetic rubbers such as styrene-butadiene block copolymers and hydrogenated styrene-butadiene block copolymers, and mixtures of these synthetic rubbers and resins. Further, a pressure-sensitive adhesive composed of heat sealing, a hot-melt type pressure-sensitive adhesive, a melt-blown or fibrous pressure-sensitive adhesive, a liquid adhesive requiring a curing time, or the like may be used.
The extension adhesive portion 17 may be formed on the entire 2 nd surface 16b of the extension sheet 16. The fastening portion adhesive portion 20 may be formed on the entire surface of the 2 nd surface 19b of the fastening portion sheet 19. These adhesive portions 17 and 20 may be formed at intervals. In this case, the adhesive portions 17 and 20 can be formed at intervals by applying the adhesive at intervals.
The disposal tape 10 provided on the outer surface of the diaper 1 can be produced by: the fixing sheet 13 is partially laminated on one end side of the extension sheet 16, the fixing sheet 19 is partially laminated on the other end side of the extension sheet 16, and the laminated portions are joined and integrated by a known method such as an adhesive. When forming the laminated portion, the fastening portion sheet 19 may be laminated at a position inside the other end portion of the extension portion sheet 16 in the longitudinal direction X1. The fixing portion sheet 13 may be laminated on the inner side of the one end of the extension sheet 16 in the longitudinal direction X1. In the laminated portion, a folded portion may be formed by folding a part of the sheet as in the above-described embodiment.
The present invention has been described above based on preferred embodiments of the present invention, but the present invention is not limited to the embodiments. For example, in the above embodiment, the disposal tape 10 is provided on the back portion B of the diaper 1, but the location where the disposal tape 10 is provided is not limited thereto, and may be, for example, the abdomen portion a or the crotch portion C.
In the above embodiment, the disposal tape 10 is provided at the substantially central portion in the lateral direction Y of the diaper 1, but the portion where the disposal tape 10 is provided is not limited thereto, and may be provided in, for example, one of the left and right side regions of the diaper 1. Further, in the above embodiment, the disposal tape 10 is disposed so that the longitudinal direction X1 thereof coincides with the longitudinal direction X of the diaper 1, but the orientation of the disposal tape 10 is not limited thereto, and for example, the disposal tape 10 may be disposed so that the longitudinal direction X1 thereof coincides with the lateral direction Y of the diaper 1.
In the above embodiment, the other end of the fixing section sheet 19 is joined to the tab sheet 21, but the disposal tape 10 may not have the tab sheet 21.
The pants-type wearing article of the present invention may be a pants-type sanitary napkin or the like, in addition to a pants-type disposable diaper for infants or adults.
The present invention further discloses the following pants-type disposable diaper according to the above embodiment.
<1>
A pants-type disposable diaper having a waist opening and a pair of leg openings and including a stomach-side portion disposed on the stomach side of a wearer in a worn state, a crotch portion disposed in the crotch portion, and a back-side portion disposed on the back side,
a disposal tape is provided on the outer surface of the disposable diaper,
the disposal tape is formed in a three-folded state in which a fixing portion, an extension portion, and a fastening portion fixed to an outer surface of the disposable diaper are sequentially connected in a longitudinal direction of the disposal tape, and the fixing portion, the extension portion, and the fastening portion are laminated in this order,
in the waste tape in a three-folded state, the fixed portion and the extended portion are releasably joined to each other, and the extended portion and the fixed portion are releasably joined to each other,
the extension portion is capable of extending in the longitudinal direction of the waste tape in an unfolded state in which the three-fold state is released,
the extension changes color after the onset of elongation and before breaking.
<2>
The pants-type disposable diaper according to the above <1>, wherein the fastening portion has a fastening portion adhesive portion on a surface facing the extension portion, the fastening portion adhesive portion releasably joining the fastening portion of the disposal tape in the three-folded state and the extension portion.
<3>
The pants-type disposable diaper according to the above <1> or <2>, wherein a difference between a haze value (JIS K7105) of the extension before the start of extension and a haze value of the extension during the extension is 20 or more in the change of the color of the extension.
<4>
The pants-type disposable diaper according to any one of the above <3>, wherein a difference in haze value between before and during extension of the extension portion is 20 or more, preferably 35 or more, and 90 or less, preferably 80 or less.
<5>
As described above<1>Or<2>The pants-type disposable diaper, wherein a color difference (Δ E) between the extension before the start of extension and the extension during extension is caused in the change of the color of the extension*Value) is 5 or more.
<6>
The pants-type disposable diaper according to the above <5>, wherein a color difference (Δ E value) between before and during extension of the extension portion is 5 or more, preferably 10 or more, and 80 or less, preferably 50 or less.
<7>
The pants-type disposable diaper according to any one of the above <1> to <6>, wherein a material which changes color in response to an extension stimulus of the extension portion is used as a member constituting the extension portion.
<8>
The pants-type disposable diaper according to any one of the above <1> to <6>, wherein as the member constituting the extension portion, a member colored in a pattern in which arrangement and area ratio of colored portions change with extension is used.
<9>
The pants-type disposable diaper according to any one of the above <1> to <8>, wherein the extension portion undergoes the color change before the tensile strength reaches 70%, preferably 60%, of the breaking strength of the extension portion.
<10>
The pants-type disposable diaper according to any one of the above <1> to <9>, wherein a tensile strength Pb at which the color of the extension portion changes is equal to or higher than an intermediate strength between a tensile strength at which the extension portion starts to be extended and a breaking strength of the extension portion.
<11>
The pants-type disposable diaper according to any one of the above <1> to <10>, wherein a tensile strength Pa at which the extension portion starts to extend is 6.5N or less,
the extension undergoes the color change before the tensile strength reaches 13N.
<12>
The pants-type disposable diaper according to any one of the above <1> to <11>, wherein a tensile strength Pa at which the extension portion starts to extend is 1.0N or more, preferably 3.0N or more, and is 6.5N or less, preferably 5.0N or less.
<13>
The pants-type disposable diaper according to any one of the above <1> to <12>, wherein a tensile strength Pb at which the color of the extension portion changes is 8N or more, preferably 12N or more, and 18N or less, preferably 15N or less.
<14>
The pants-type disposable diaper according to any one of the above <1> to <13>, wherein the breaking strength Pe of the extension portion is 20N or more, preferably 25N or more, and 50N or less, preferably 45N or less.
<15>
The pants-type disposable diaper according to any one of the above <1> to <14>, wherein the extension portion is extensible to 150mm or more, preferably 200mm or more, and more preferably 250mm or more.
<16>
The pants-type disposable diaper according to any one of the above <1> to <15>, wherein the extension portion is extensible to 150mm or more,
the extension undergoes the colour change before the extension length reaches 120 mm.
<17>
The pants-type disposable diaper according to any one of the above <1> to <16>, wherein the extension portion is extensible to 150mm or more,
the extension length of the extension portion in which the color changes is 120mm or more, preferably 150mm or more, and more preferably 180mm or more.
<18>
The pants-type disposable diaper according to any one of the above <1> to <17>, wherein when the process of extension of the extension portion is divided into a 1 st stage of 2/3 extending from the start of extension to a maximum length and a 2 nd stage of extension from 2/3 of the maximum length to the maximum length, the amount of change in the color in the 2 nd stage is larger than the amount of change in the color in the 1 st stage.
<19>
The pants-type disposable diaper according to the above <18>, wherein the extension portion does not undergo the color change in the 1 st stage of 2/3 where the extension is started to the maximum length from the extension during the extension.
<20>
The pants-type disposable diaper according to the above <18> or <19>, wherein when the amount of change in color of the extension portion is represented by a difference in haze value, the difference in haze value between before extension and the 2 nd stage is H2, and the difference in haze value between before extension and the 1 st stage is H1, H2 is larger than H1,
the difference between H2 and H1 is 10 or more, preferably 15 or more, and 90 or less, preferably 80 or less.
<21>
As described above<18>Or<19>The pants type disposableDiaper, wherein the color difference (Delta E) is used*Value) represents the amount of change in the color of the elongated portion, and the difference (Δ E) between the color before elongation and the color at the 2 nd stage*Value) C2, the difference in color (Delta E) between pre-elongation and the 1 st stage*Value) is C1, the C2 is greater than the C1,
the difference between C2 and C1 is 3 or more, preferably 5 or more, 80 or less, preferably 50 or less, 3 or more and 80 or less, preferably 5 or more and 50 or less.
<22>
The pants-type disposable diaper according to any one of the above <1> to <21>, wherein the extension portion is extensible to a length 4 times or more, preferably 5 times or more, more preferably 6 times or more, and further extensible to a length 12 times or less, preferably 10 times or less, more preferably 8 times or less, the length before extension.
<23>
The pants-type disposable diaper according to any one of the above <1> to <22>, wherein the extension part is extensible to 4 times or more the length before extension,
the extension length at which the color of the extension portion changes is 2 times or more, preferably 3 times or more, the length before extension.
<24>
The pants-type disposable diaper according to any one of the above <1> to <23>, wherein the extension part is extensible to a length 4 times or more the length before extension,
the extension length at which the color of the extension portion changes is a length that is 3 times or more the length before extension.
<25>
The pants-type disposable diaper according to any one of the above <1> to <24>, wherein the extension portion is extensible to a length 4 times or more the length before extension, and when the process of extension of the extension portion is divided into a 3-fold extension stage of extending from the start of extension to a length 3 times the length before extension and a 4-fold extension stage of extending from the length 3 times the length before extension to a length 4 times the length before extension, the amount of change in the color in the 4-fold extension stage is larger than the amount of change in the color in the 3-fold extension stage.
<26>
The pants-type disposable diaper according to any one of the above <1> to <24>, wherein the extension portion is extensible to a length 4 times or more the length before extension, and when the extension process of the extension portion is divided into a 3-fold extension stage of extending from the start of extension to a length 3 times the length before extension and a 4-fold extension stage of extending from the length 3 times the length before extension to a length 4 times the length before extension, the color change does not occur in the 3-fold extension stage.
<27>
The pants-type disposable diaper according to the above <25> or <26>, wherein a difference in color between before extension of the extension portion and the 4-fold extension stage is larger than a difference in color between before extension and the 3-fold extension stage.
<28>
The pants-type disposable diaper according to any one of the above <1> to <27>, wherein a difference in color between the extension and the outer surface in which the change in color occurs is larger than a difference in color between the extension and the outer surface before the change in color occurs.
<29>
The pants-type disposable diaper according to any one of the above <1> to <28>, wherein the color of the extension portion before the color change is caused is the same as or similar to the color of the outer surface in the vicinity of the fixed portion.
<30>
The pants-type disposable diaper according to any one of the above <1> to <29>, wherein a grip piece is joined to an end portion of the fastening portion opposite to a side to which the extension portion is joined,
the elongated portion in which the color change has occurred is the same as or similar to the color of the fixing portion, the fastening portion, or the grip piece.
<31>
The pants-type disposable diaper according to any one of the above <1> to <30>, wherein a tensile strength Pa at which the extension portion starts to extend is lower than a peel strength Pg between the disposable diaper and the fixed portion.
<32>
The pants-type disposable diaper according to any one of the above <1> to <31>, wherein a ratio (Pg/Pa) of a peel strength Pg between the disposable diaper and the fixed portion to a tensile strength Pa at which the extension portion starts to extend is 3 or more, preferably 4 or more, and 8 or less, preferably 7 or less.
<33>
The pants-type disposable diaper according to any one of the above <1> to <32>, wherein the fixing portion is disposed in a high rigidity region located inside a low rigidity region located in a peripheral region of the disposable diaper.
<34>
The pants-type disposable diaper according to any one of the above <1> to <33>, wherein the disposable diaper comprises an absorbent core,
the longitudinal inner side of the fixing portion overlaps the absorbent core.
<35>
The pants-type disposable diaper according to any one of the above <1> to <34>, wherein the disposable diaper has an extensible part that extends and contracts in the longitudinal direction when a direction extending from the abdomen-side part to the back-side part via the crotch part is taken as a longitudinal direction and a direction orthogonal to the longitudinal direction is taken as a transverse direction,
the waste tape is provided on the back portion, and an end portion of the fixing portion on the crotch portion side is located closer to an opening end side of the waist opening portion than the stretchable portion in the longitudinal direction.
<36>
The pants-type disposable diaper according to the above <35> comprising an absorbent body having a front sheet on a skin-facing surface side and a back sheet on a non-skin-facing surface side, and an absorbent body between the front sheet and the back sheet, the pants-type disposable diaper having leakage preventive cuffs extending in the longitudinal direction at both side portions of the absorbent body in the longitudinal direction,
the leak protection turn-ups contain: a sheet for forming a turned-up edge; and 1 or more cuff elastic members fixed in an extended state in the longitudinal direction,
when the length between the crotch-side end of the fastening portion and the open end of the waist opening of the back portion is L10 and the length between the cuff elastic member and the open end is L12, the ratio of L12 to L10 (L12/L10) is 1.05 or more, preferably 1.1 or more, and 2.0 or less, preferably 1.75 or less.
<37>
The pants-type disposable diaper according to the above <35> or <36>, wherein a ratio of L14 to L10 (L14/L10) is 1.1 or more, preferably 1.2 or more, and 2.5 or less, preferably 2.2 or less, when a length between the crotch-side end portion of the fastening portion and the open end of the waist opening of the back side portion is L10, and a length between the elastic member disposed in the leg opening and the open end of the waist opening is L14.
Industrial applicability of the invention
According to the present invention, the waste tape can be stretched without excessively extending the waste tape.

Claims (35)

1. A pants-type disposable diaper having a waist opening and a pair of leg openings, and including a stomach-side portion disposed on the stomach side of a wearer in a worn state, a crotch portion disposed in the crotch portion, and a back-side portion disposed on the back side, characterized in that:
a disposal tape is provided on the outer surface of the disposable diaper,
the disposal tape is formed in a three-folded state in which a fixing portion, an extension portion, and a fastening portion fixed to an outer surface of the disposable diaper are sequentially connected in a longitudinal direction of the disposal tape, and the fixing portion, the extension portion, and the fastening portion are laminated in this order,
in the waste tape in a three-folded state, the fixed portion and the extended portion are releasably joined to each other, and the extended portion and the fixed portion are releasably joined to each other,
the extension portion is capable of extending in the longitudinal direction of the waste tape in an unfolded state in which the three-fold state is released,
the extension changes color after the beginning of extension and before breaking,
the disposable diaper has an extensible part that extends and contracts in the longitudinal direction when a direction extending from the stomach-side part to the back-side part via the crotch part is taken as a longitudinal direction and a direction orthogonal to the longitudinal direction is taken as a transverse direction,
the waste tape is provided on the back portion, and an end portion of the fixing portion on the crotch portion side is located closer to an opening end side of the waist opening portion than the stretchable portion in the longitudinal direction,
a grip piece is connected to an end of the fixed portion opposite to the side to which the extended portion is connected,
the elongated portion in which the color change has occurred is the same as or similar to the color of the fixing portion, the fastening portion, or the grip piece.
2. A pants-type disposable diaper according to claim 1, characterized in that:
the fastening portion has a fastening portion adhesive portion on a surface thereof opposite to the extension portion, and the fastening portion of the waste tape in a three-folded state and the extension portion are releasably joined to each other.
3. A pants-type disposable diaper according to claim 1 or 2, characterized in that:
in the change in color of the extension, the difference between the haze value of the extension before the start of extension and the haze value of the extension during extension is 20 or more.
4. A pants-type disposable diaper according to claim 3, characterized in that:
the difference between the haze value before and during the extension of the extended portion is 20 or more and 90 or less.
5. A pants-type disposable diaper according to claim 1 or 2, characterized in that:
the color difference between the extension before the start of the extension and the extension during the extension is Delta E in the change of the color of the extension*The value is 5 or more.
6. A pants-type disposable diaper according to claim 5, characterized in that:
a color difference Δ E between before and during elongation of the elongated portion*The value is 5 or more and 80 or less.
7. A pants-type disposable diaper according to claim 1 or 2, characterized in that:
as the member constituting the extension portion, a material that changes color upon the extension stimulus of the extension portion is used.
8. A pants-type disposable diaper according to claim 1 or 2, characterized in that:
as the member constituting the extension portion, a member colored in a pattern in which the arrangement and the area ratio of colored portions change with extension is used.
9. A pants-type disposable diaper according to claim 1 or 2, characterized in that:
the elongation undergoes the color change before the tensile strength reaches 70% of the breaking strength of the elongation.
10. A pants-type disposable diaper according to claim 1 or 2, characterized in that:
the tensile strength Pb at which the color of the extension changes is equal to or greater than the intermediate strength between the tensile strength Pa at which the extension starts to elongate and the breaking strength Pe of the extension.
11. A pants-type disposable diaper according to claim 1 or 2, characterized in that:
a tensile strength Pa at which the elongation of the elongation starts is 6.5N or less,
the extension undergoes the color change before the tensile strength reaches 13N.
12. A pants-type disposable diaper according to claim 1 or 2, characterized in that:
the tensile strength Pa at which the elongation portion starts to elongate is 1.0N or more and 6.5N or less.
13. A pants-type disposable diaper according to claim 1 or 2, characterized in that:
the tensile strength Pb of the color change of the extension part is more than 8N and less than 18N.
14. A pants-type disposable diaper according to claim 1 or 2,
the elongation section has a breaking strength Pe of 20N to 50N.
15. A pants-type disposable diaper according to claim 1 or 2, characterized in that:
the extension portion can be extended to 150mm or more.
16. A pants-type disposable diaper according to claim 1 or 2, characterized in that:
the extension portion is capable of extending to 150mm or more,
the extension undergoes the colour change before the extension length reaches 120 mm.
17. A pants-type disposable diaper according to claim 1 or 2, characterized in that:
the extension portion is capable of extending to 150mm or more,
the extension length of the extension part with the color changed is more than 120 mm.
18. A pants-type disposable diaper according to claim 1, characterized in that:
when the elongation process of the elongation part is divided into a 1 st stage of 2/3 elongating from the beginning of elongation to the maximum length and a 2 nd stage of elongating from 2/3 of the maximum length to the maximum length, the amount of change of the color in the 2 nd stage is larger than the amount of change of the color in the 1 st stage.
19. A pants-type disposable diaper according to claim 18, characterized in that:
the extension does not undergo the color change during the extension in stage 1 of 2/3 from the beginning of extension to the maximum length.
20. A pants-type disposable diaper according to claim 18 or 19, characterized in that:
wherein the H2 is larger than the H1 when the change amount of the color of the extension part is represented by a difference in haze value, the difference between the haze value before the extension and the haze value at the 2 nd stage is H2, and the difference between the haze value before the extension and the haze value at the 1 st stage is H1,
the difference between the H2 and the H1 is 10 or more and 90 or less.
21. A pants-type disposable diaper according to claim 18 or 19, characterized in that:
in-use color difference Δ E*The value represents the amount of change in the color of the extension and the color difference Δ E between before extension and the 2 nd stage*A value C2, a difference Δ E between the color before elongation and the color in phase 1*At a value of C1, the C2 is greater than the C1,
the difference between the C2 and the C1 is 3 to 80 inclusive.
22. A pants-type disposable diaper according to claim 1 or 2, characterized in that:
the extension portion is capable of extending to a length that is 4 times or more and 12 times or less the length before extension.
23. A pants-type disposable diaper according to claim 1 or 2, characterized in that:
the extension portion is capable of being extended to 4 times or more the length before extension,
the extension length at which the color of the extension portion changes is a length that is 2 times or more the length before extension.
24. A pants-type disposable diaper according to claim 1 or 2, characterized in that:
the extension portion is capable of extending to a length 4 times or more the length before extension,
the extension length at which the color of the extension portion changes is a length that is 3 times or more the length before extension.
25. A pants-type disposable diaper according to claim 1, characterized in that:
the extension portion is capable of extending to a length 4 times or more the length before extension, and when the extension process of the extension portion is divided into a 3-time extension stage of extending from the start of extension to a length 3 times the length before extension and a 4-time extension stage of extending from the length 3 times the length before extension to a length 4 times the length before extension, the amount of change in the color in the 4-time extension stage is larger than the amount of change in the color in the 3-time extension stage.
26. A pants-type disposable diaper according to claim 1, characterized in that:
the extension portion is capable of extending to a length 4 times or more the length before extension, and when the extension process of the extension portion is divided into a 3-time extension stage of extending from the start of extension to a length 3 times the length before extension and a 4-time extension stage of extending from the length 3 times the length before extension to a length 4 times the length before extension, the color change does not occur in the 3-time extension stage.
27. A pant-type disposable diaper according to claim 25 or 26, wherein:
the difference in color between the stretched portion before stretching and the 4-fold stretching stage is greater than the difference in color between the stretched portion before stretching and the 3-fold stretching stage.
28. A pants-type disposable diaper according to claim 1 or 2, characterized in that:
the difference in color between the outer surface and the extension where the change in color occurred is greater than the difference in color between the outer surface and the extension before the change in color occurred.
29. A pants-type disposable diaper according to claim 1 or 2, characterized in that:
the elongated portion before the color change occurs is the same or similar color as the fixed portion in the outer surface.
30. A pants-type disposable diaper according to claim 1 or 2, characterized in that:
the tensile strength Pa at which the extension portion starts to extend is lower than the peel strength Pg between the disposable diaper and the fixed portion.
31. A pants-type disposable diaper according to claim 1 or 2, characterized in that:
a ratio of a peel strength Pg between the disposable diaper and the fixing portion to a tensile strength Pa at which the extension portion starts to extend is 3 or more and 8 or less.
32. A pants-type disposable diaper according to claim 1 or 2, characterized in that:
the fixing portion is disposed in a high rigidity region located inward of a low rigidity region located in a peripheral region of the disposable diaper.
33. A pants-type disposable diaper according to claim 1 or 2, characterized in that:
the disposable diaper includes an absorbent core having a core portion,
the longitudinal inner side of the fixing portion overlaps the absorbent core.
34. A pants-type disposable diaper according to claim 1, characterized in that:
comprising an absorbent body having a front sheet on a skin-facing surface side and a back sheet on a non-skin-facing surface side, and an absorbent body between the front sheet and the back sheet, wherein the pants-type disposable diaper has leakage preventive cuffs extending in the longitudinal direction on both side portions of the absorbent body in the longitudinal direction,
the leak protection turn-ups contain: a sheet for forming a turned-up edge; and 1 or more cuff elastic members fixed in an extended state in the longitudinal direction,
when the length between the crotch-side end of the fastening portion and the open end of the waist opening of the back portion is L10 and the length between the cuff elastic member and the open end is L12, the ratio of L12 to L10 is 1.05 or more and 2.0 or less.
35. A pants-type disposable diaper according to claim 1, characterized in that:
when the length between the crotch-side end of the fastening portion and the open end of the waist opening of the back portion is L10 and the length between the elastic member disposed in the leg opening and the open end of the waist opening is L14, the ratio of L14 to L10 is 1.1 or more and 2.5 or less.
CN201980025757.7A 2018-04-24 2019-04-05 Pants-type disposable diaper Active CN111971012B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2018082801A JP6762985B2 (en) 2018-04-24 2018-04-24 Pants type disposable diaper
JP2018-082801 2018-04-24
PCT/JP2019/015229 WO2019208178A1 (en) 2018-04-24 2019-04-05 Underpants-type disposable diaper

Publications (2)

Publication Number Publication Date
CN111971012A CN111971012A (en) 2020-11-20
CN111971012B true CN111971012B (en) 2022-05-06

Family

ID=68294094

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201980025757.7A Active CN111971012B (en) 2018-04-24 2019-04-05 Pants-type disposable diaper

Country Status (4)

Country Link
JP (1) JP6762985B2 (en)
CN (1) CN111971012B (en)
RU (1) RU2750795C1 (en)
WO (1) WO2019208178A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7212458B2 (en) * 2017-08-08 2023-01-25 花王株式会社 Pants-type disposable diaper
JP6724063B2 (en) 2018-04-24 2020-07-15 花王株式会社 Pants-type disposable diaper

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4033850A1 (en) * 1990-10-24 1992-04-30 Minnesota Mining & Mfg INTO A ROLE ENDLESSLY WINDED, COMPOSED LAMINATE ADHESIVE TAPE AND METHOD FOR PRODUCING THE ROLE OF LAMINATE ADHESIVE TAPE
JP3007564B2 (en) * 1995-03-17 2000-02-07 花王株式会社 Absorbent articles
JPH09194801A (en) * 1996-01-11 1997-07-29 Nitto Denko Corp Extensible fixing tape
JPH11332910A (en) * 1998-05-25 1999-12-07 Daio Paper Corp Post-processing tape of shorts type diaper
JP3754333B2 (en) * 2001-06-29 2006-03-08 ユニ・チャーム株式会社 Disposable diapers
US20030153891A1 (en) * 2002-02-14 2003-08-14 Molee Kenneth John Multifunctional disposal tape on an absorbent article
US7704589B2 (en) * 2004-09-30 2010-04-27 Kimberly-Clark Worldwide, Inc. Absorbent garment with color changing fit indicator
JP2007236967A (en) * 2007-05-14 2007-09-20 Daio Paper Corp Disposable paper diaper
US8740869B2 (en) * 2011-03-11 2014-06-03 Kimberly-Clark Worldwide, Inc. Personal care articles with tactile visual cues
US9676164B2 (en) * 2011-07-18 2017-06-13 Kimberly-Clark Worldwide, Inc. Extensible sheet material with visual stretch indicator
MY161714A (en) * 2012-11-16 2017-05-15 Toyo Boseki Biaxially stretched polyester film and method for producing same
JP6532725B2 (en) * 2015-03-26 2019-06-19 ユニ・チャーム株式会社 Disposable Wearables
JP6680586B2 (en) * 2016-03-16 2020-04-15 タキロンシーアイ株式会社 Porous elastic film, method for producing the same, and composite sheet
JP6236569B1 (en) * 2017-07-28 2017-11-22 ユニ・チャーム株式会社 Absorbent article and package of absorbent article
JP7004529B2 (en) * 2017-09-11 2022-01-21 ユニ・チャーム株式会社 Elastic tape and the resin composition used for it

Also Published As

Publication number Publication date
JP2019187717A (en) 2019-10-31
WO2019208178A1 (en) 2019-10-31
CN111971012A (en) 2020-11-20
JP6762985B2 (en) 2020-09-30
RU2750795C1 (en) 2021-07-02

Similar Documents

Publication Publication Date Title
JP4460878B2 (en) Disposable pants-type wearing articles
RU2762027C1 (en) Disposable diaper type underpants
CN111971012B (en) Pants-type disposable diaper
CN110868981B (en) Pants-type disposable diaper
CN111971013B (en) Pants-type disposable diaper
JP6924295B2 (en) Pants-type disposable diapers
JP7117350B2 (en) pants type disposable diaper
JP5793382B2 (en) Disposable diapers
TWI801593B (en) Packaging for absorbent articles
RU2750576C1 (en) Disposable pants type diaper
RU2768220C1 (en) Panties type disposable diaper
JP7315432B2 (en) absorbent article
RU2612933C1 (en) Absorbent product containing system for mounting with visual sign
CN110368192B (en) Absorbent article
JP5662125B2 (en) Pants-type absorbent article
WO2023276530A1 (en) Pants-type absorbent article
CN117479910A (en) Underpants type absorbent article
CN116209415A (en) Pants-type absorbent article
WO2017056634A1 (en) Packaging body for absorbent articles

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant