Packaging bag for disposable absorbent products

Abstract

The utility model discloses a packaging bag for a disposable absorption product, which comprises an opening part integrally formed on at least one side surface and a sealing part matched with the opening part, the packaging bag is constructed to form an opening which allows access to the disposable absorption product in the packaging bag and is provided with two spaced opposite sides by means of external acting force; the sealing part comprises a first sealing part and / or a second sealing part which are / is arranged on the inner side and / or the outer side of the side surface close to one side of the opening; and at least one of the first sealing component and / or the second sealing component can be mechanically combined with the other opposite side of the opening so as to repeatedly seal the opening.

Description

Technical Field

[0001] This utility model relates to the field of packaging bags, and more particularly to a packaging bag for disposable absorbent products, which is especially helpful in protecting the disposable absorbent products stored inside. Background Technology

[0002] Non-fragile, compressible, disposable absorbent products, such as diapers and training pants, disposable adult incontinence pants, and feminine hygiene pads, are often used to collect and retain bodily secretions containing, for example, urine and / or blood. In addition to the three main product attributes of comfort, absorbency, and portability, consumers are particularly concerned about the safety and hygiene of their use.

[0003] Given practical needs, after opening the packaging of a disposable absorbent product and removing one or more items needed immediately, consumers may wish to leave any unused items in the packaging for storage until the next need for other items. Furthermore, due to the increasing emphasis on outdoor activities for infants and toddlers in modern households, and the growing number of women working in technical and engineering-related fields, disposable absorbent products may be stored not only in high-humidity environments such as bathrooms, but also in environments with particulate matter, such as dusty workplaces or outdoor activity areas. For these reasons, packaging for disposable absorbent products requires not only maintaining its shape and structural integrity, but also the ability to reclose to a certain extent to effectively protect unused items.

[0004] In the prior art, the invention patent with authorization publication number CN113423650B provides a tearing method for a packaging bag, wherein the packaging bag can be torn along the nominal tear lines on both sides of the packaging bag from the tear initiation point on the first side edge located on one side towards the second side edge on the opposite side. However, once the packaging bag is torn, it is separated into two loose and no longer connected parts, and cannot be closed again.

[0005] In view of this, the packaging disclosed in the invention patent with authorization announcement number CN109803904B can be used to contain multiple disposable absorbent articles and has a perforated or scored path for defining the opening structure of the cover. In particular, the cover can be configured as an effective packaging reclosing device, so that the packaging can still maintain its shape and structural integrity to a certain extent after opening and has the ability to reclose. Therefore, the packaging can reclose to a certain extent, thereby helping to protect unused products from airborne contaminants and can be used to store the unused articles. However, according to the specification and accompanying drawings, the tear line between the cover and the packaging body is located on the side of the packaging and completely covers the outer perimeter of the packaging body. Therefore, when the cover is subjected to circumferential external force, this polymer film-formed soft packaging is likely to separate from the packaging body; furthermore, during the lifting of a large volume package and after the package is transported, the perforated path surface between the cover and the packaging body may separate or shift due to the gravity of the package, thus limiting the protective effect of the packaging.

[0006] Therefore, in the packaging provided by the invention patent with authorization announcement number CN115667090B, a first weakening line extending along the width direction is formed on the front and rear surfaces of the packaging, and a second weakening line is formed across the corners. Unlike the aforementioned invention patent CN109803904B, the first and second weakening lines do not have a longitudinal length and transverse width that completely penetrate the circumference of the packaging bag; however, the weakening lines further extend in the vertical direction of the packaging. Therefore, although the weakening lines of this packaging can generally remain closed in a static state after being torn, when the packaging needs to be moved with the help of a handle, the torn portions on the front and rear surfaces of the packaging may still be further opened due to the weight of the packaging itself. In other words, the sealing and protective effect of the packaging is still limited.

[0007] In view of this, there is a need in the prior art to improve the packaging bags for disposable absorbent products, so as to provide more effective protection for the packaging bags through a more preferred handle and a design that is different from the tear-out parts set in the circumference of the packaging bags in the prior art. Utility Model Content

[0008] Therefore, the objective of this invention is to overcome the deficiencies in the prior art and provide a packaging bag for disposable absorbent products that can be effectively closed and sealed multiple times or repeatedly after being torn, thereby preventing contamination when storing and protecting disposable absorbent products such as feminine hygiene products and diapers.

[0009] This utility model provides a packaging bag for disposable absorbent articles, comprising a pair of opposing first and second sides, a pair of opposing third and fourth sides, and a pair of opposing fifth and sixth sides, and further comprising: an opening portion integrally formed on at least one of the sides and a corresponding sealing portion, wherein the opening portion is configured to form an opening with spaced-apart opposing sides that allows access to the disposable absorbent article inside the packaging bag by means of an external force; the sealing portion includes a first sealing member and / or a second sealing member disposed on the outer surface of the side adjacent to the opening and / or pointing towards the inner surface of the bagged product; wherein at least one of the first sealing member and / or the second sealing member is mechanically engaged with the opposite side of the opening to repeatedly seal the opening.

[0010] In one non-limiting embodiment of the present invention, the opening extends along the longitudinal direction X, the longitudinal height direction Z, or the longitudinal width direction Y and penetrates at least one of the sides, or is partially provided along the longitudinal direction X, the longitudinal height direction Z, or the longitudinal width direction Y in at least one of the sides.

[0011] Furthermore, the opening is arranged on one of the sides along the center line of the longitudinal direction X, the longitudinal height direction Z, or the longitudinal width direction Y.

[0012] Furthermore, the length of an opening partially provided on one of the sides is approximately 20% of the longitudinal length, longitudinal width, or longitudinal height of the side.

[0013] In one non-limiting embodiment of the present invention, the packaging bag further includes a handle component, wherein a single handle component can be disposed on one of the sides, or a pair of handle components can be disposed on two opposite sides.

[0014] Furthermore, a single handle component covers the opening portion, and a first sealing component is provided on its surface pointing towards the opening portion.

[0015] In one non-limiting embodiment of the present invention, at least one of the first sealing member and the second sealing member is a mechanical fastener capable of being connected to a flexible material, and it is positioned on the longitudinal bisector of the opening.

[0016] In one non-limiting embodiment of the present invention, the second sealing member has a generally square second sealing body and a sealing section extending from the second sealing body; wherein the sealing section includes a first fold, a second fold, and a sealing portion arranged along its longitudinal direction.

[0017] Furthermore, the second sealing component is arranged generally transversely to the opening and is located on the longitudinal bisector of the opening.

[0018] Furthermore, the second sealing member has a first use state and a second use state, wherein, in the first use state, the first fold and the second fold of the second sealing member overlap from bottom to top, and the sealing section extends beyond the second sealing body in its longitudinal direction; in the second use state, the sealing section of the second sealing member extends completely in its longitudinal direction, and the sealing part can mechanically engage with its side or with the first sealing member.

[0019] In view of this, the present invention effectively protects the openings constructed on the side of the packaging bag by providing matching openings and sealing parts on a single side of the packaging bag, and avoids further tearing of the openings on the side surface as is seen in the prior art when the user handles the packaging, thus achieving more effective protection for the absorbent products inside the packaging bag. Its technical features and advantages will be further described below through specific embodiments. Attached Figure Description

[0020] Figure 1 The diagram shows a schematic three-dimensional perspective view of a non-limiting embodiment of a packaging bag for disposable absorbent articles according to the present invention, with particular emphasis on two different constructions of the opening portion and a first adhesive component in the sealing portion.

[0021] Figure 2 The diagram shows a schematic three-dimensional perspective view of a non-limiting embodiment of a packaging bag for disposable absorbent articles according to the present invention, with particular emphasis on a first adhesive component in the handle, opening, and sealing portions that can be resealed.

[0022] Figure 3 The diagram shows a schematic three-dimensional perspective view of a non-limiting embodiment of a packaging bag for disposable absorbent articles according to the present invention, with particular emphasis on a first adhesive member and a second adhesive member disposed below the handle component.

[0023] Figure 4 A schematic three-dimensional perspective view of another non-limiting embodiment of a packaging bag for disposable absorbent articles according to the present invention is shown in line drawing.

[0024] Figure 5 A schematic three-dimensional perspective view of yet another non-limiting embodiment of a packaging bag for disposable absorbent articles according to the present invention is shown in line drawing.

[0025] Figures 6-8A top-down view shows three different arrangements of weakening lines in the packaging bag for disposable absorbent articles according to the present invention.

[0026] Figure 9 The diagram shows a top view of the packaging bag for disposable absorbent articles according to the present invention, viewed from top to bottom, with a line drawing showing another arrangement of weakening lines, as well as a first adhesive member and a second adhesive member that can join together.

[0027] Figures 10 to 11 Two non-limiting embodiments of the structure of a handle component used in a packaging bag for disposable absorbent articles according to the present invention are illustrated in line diagrams.

[0028] Figures 12 to 13 The second adhesive component of the handle part used in the packaging bag for disposable absorbent articles according to the present invention is shown in the line drawing, wherein... Figure 12 The second adhesive component shown is in an overlapped state, while Figure 13 The second adhesive component shown is in the unfolded state;

[0029] Figures 14-17 The different forms of the weakening line of the opening of the packaging bag for disposable absorbent articles according to the present invention are illustrated in line diagram.

[0030] Reference numerals used repeatedly in this specification and drawings are intended to indicate the same or similar elements of this utility model.

[0031] Figure Labels

[0032] 1. Packaging bag; 10. Main body of packaging bag; 11. First side; 12. Second side; 13. Third side; 14. Fourth side; 15. Fifth side.

[0033] 151 First edge 152 Second edge 153 Third edge 154 Fourth edge

[0034] 16 Sixth side 17 Corner brace

[0035] 2 Opening section 20 Handle component 201 Handle body 202 First end 203 Second end

[0036] 21 Opening 21a First opening line 21b Second opening line

[0037] a. First endpoint b. Second endpoint c. Third endpoint d. Fourth endpoint

[0038] junction of e and f

[0039] 211 Weakening line 212 First boundary point 213 Second boundary point

[0040] W1 First interval W2 Second interval

[0041] 3 Sealing part 30 First sealing component 31 Second sealing component 310 Second sealing body

[0042] 311 Sealing section; 3111 First fold; 3112 Second fold; 3113 Sealing part

[0043] 1000 absorbent products

[0044] X (Length direction), Y (Width direction), Z (Height direction)

[0045] X1 is the longitudinal direction of the absorbent product; Y1 is the longitudinal width direction of the absorbent product; Z1 is the longitudinal height direction of the absorbent product.

[0046] L1, L2, L3: Perforation lengths; N1, N2, N3: Minimum distance between unperforated / unmarked portions. Detailed Implementation

[0047] Those skilled in the art will understand that the following detailed description of embodiments is merely an illustration of exemplary models and is not intended to limit the broader aspects of this disclosure.

[0048] Terminology Definition

[0049] Absorbent products

[0050] As used herein, the term "absorbent article" refers to an article that can be placed close to or near the wearer's body (i.e., adjacent to the body) to absorb and contain various liquid, solid, and semi-solid exudates from the body. As described herein, such absorbent articles are intended to be discarded after a limited period of use, rather than washed or otherwise restored for reuse. It should be understood that, without departing from the scope of this invention, the term may refer to any article constructed to absorb and retain bodily exudates, including such products in packaged and unpackaged states. Bodily exudates include urine, feces, blood, and menstrual blood. Therefore, personal care products as used herein include, but are not limited to, diapers, baby bath training underwear, adult incontinence clothing, male incontinence products, tampons, vaginal suppositories, panty liners, cotton pads, sanitary napkins, tissues, wipes, etc. Examples of commercially available personal care products include, but are not limited to, Poise feminine care products, including panty liners and cotton pads, and Kotex feminine care products, including cotton pads, tampons, and liner pads, all of which are available from Kimberly-Clark Corporation, Neenah, Wisconsin.

[0051] As used herein, the term "lateral aspect of an absorbent article" refers to the direction parallel to a horizontal line tangent to the front surface of the upper portion of the wearer's legs adjacent to the torso when the absorbent article is worn normally and the wearer is in a flat, square, normal standing position. The "width" dimension of any part or feature of an article, such as a women's or infant absorbent article, is measured in the lateral direction. When the article or its parts are laid flat on a horizontal surface, the "lateral aspect of an absorbent article" corresponds to the lateral direction relative to the structure when it is worn, as defined above. For articles such as women's absorbent articles that are opened and laid flat on a horizontal plane, "lateral aspect of an absorbent article" refers to a direction perpendicular to the longitudinal direction and parallel to the horizontal plane.

[0052] As used herein, the term "body-facing" is a relative positional term that refers to a feature of a component or structure that is closer to the wearer than another feature during use. For example, a top sheet layer has a body-facing surface that is closer to the wearer than the opposite, outward-facing surface of the top sheet.

[0053] As used herein, the term "facing the garment" is a relative positional term that refers to a feature or structure that is further away from the wearer than another feature when in use. For example, a topsheet layer has a garment-facing surface that is further away from the wearer than the opposite, wearer-facing surface of the topsheet.

[0054] Packaging materials

[0055] As used herein, the term "packaging bag material" refers to packaging bags for disposable absorbent products for women and infants, which in particular require safety, barrier properties, and sealing properties. Packaging materials must be non-toxic and harmless, and comply with relevant safety standards. According to GB 43631-2023 "Basic Safety Technical Specifications for Paper Products for Infants and Children," packaging materials that come into direct contact with the product should be non-toxic and harmless. Furthermore, the packaging material needs to have good barrier properties to prevent the penetration of moisture, air, and light, in order to maintain the freshness of the product and prevent spoilage. More importantly, the packaging bag should have good sealing properties to prevent the product from being contaminated during transportation and storage. Specifically, the term "packaging bag material" may include:

[0056] Composite plastic materials: Multi-layer composite plastic materials (such as PET / AL / PE structure) are commonly used in packaging bags. PET acts as the load-bearing layer, providing strength and transparency; AL aluminum foil acts as a barrier layer, preventing the penetration of light, oxygen, and moisture; and the inner PE film is used for heat sealing and direct contact with the product.

[0057] Single-material packaging: such as all-polypropylene (PP) spout bags, which are easy to recycle and environmentally friendly.

[0058] As used herein, the term "polymer" as used with respect to the term "packaging bag material" generally includes, but is not limited to, homopolymers, copolymers such as block copolymers, graft copolymers, random polymers and alternating copolymers, terpolymers, etc., as well as their blends and variants. Furthermore, unless otherwise specified, the term "polymer" will include all possible material geometries. These geometries include, but are not limited to, isotactic, syndiotactic, and random symmetric geometries.

[0059] Packaging film

[0060] As used herein, the term "packaging film" refers to a sheet structure of a certain length, width, and thickness (calipers) suitable for flexible packaging bags of disposable absorbent products for women and children, wherein each of the length and width is significantly greater than the thickness, that is, more than 1,000 times or more, and the structure has one (single layer) or more of each adjacent layer (multilayer), each of which is a substantially continuous structure formed of one or more thermoplastic polymers (including blends thereof).

[0061] As used in this article, "maintaining shape" means that the shape of the flexible packaging containing the items is the same as the shape of the packaging when the items are being removed and after all the items have been removed from the internal compartments. That is, the packaging surface does not collapse inward toward or outward toward the internal compartments, and the top surface does not collapse inward toward the internal compartments. It should be noted that a change of less than approximately 20% in the width and / or length of the top surface when the packaging is full compared to the length and width when the items are removed is considered to maintain shape. For example, if the packaging has a top surface width of 10 cm when containing the items, and if the packaging still has a width of 8-12 cm at the same point after the items are removed, then the packaging is considered to maintain its shape.

[0062] As used herein, the term "packaging film," and the terms "outer" and "inner," which will be further referred to herein, refer to the positioning of the layer relative to the interior and exterior of the finished flexible packaging; thus, the "inner layer" faces the contained item, and the "outer layer" faces outward and has an exposed outer surface for shoppers, for example, in a retail store, to view and touch.

[0063] As used in this article, terms such as “top”, “bottom”, “upper”, “lower”, “above”, “below”, “under”, “upper adjacent”, “lower adjacent”, and similar related terms.

[0064] Opening section

[0065] As used herein, the term "opening" refers to a packaging area that can be operated by a consumer to access any articles contained within the flexible packaging. Once opened, the opening can be removed from the flexible packaging or retained attached to it. The opening can be part of the top surface or a separate material attached to the top surface.

[0066] As used herein, the term "opening" as used in the term "opening" refers to a portion of flexible packaging that has been removed or otherwise cut off, allowing for the storage of items in an internal compartment and for the removal of items from that internal compartment.

[0067] As used herein, the term "weak line," associated with the term "opening," refers to a weak area or region of any material, preferably having a certain length but not necessarily a defined width. A "weak line" can include linear and non-linear patterns, such as weakened curve patterns, or other shapes, such as circles, rectangles, etc. A weak line includes perforations or other series of cuts, weak or broken or separating portions of a material, or strips of different kinds of material bridging adjacent portions of a material that are more easily torn or broken than the adjacent portions, and which allow a consumer or manufacturer to separate adjacent portions along the weak line. A weak line can also include a single extended slot or cut.

[0068] heat sealing of packaging film

[0069] As used herein, the term "heat seal" refers to the bonding between individual portions of a membrane material achieved by applying direct or indirect (e.g., ultrasonic) heat and pressure, which causes the individual portions of the membrane to at least partially melt and fuse together to a certain extent, thereby forming an adhesive area, joint, or seam that cannot be separated without causing substantial damage to the remaining portions of one or both joined parts. If bag forming and / or packaging machines form welds in the membrane (welding that bonds the membrane material itself by applying heat that causes the membrane to fuse itself), it may be desirable... Package The membrane material is a multilayer membrane, and the layers to be contacted and fused are formed of a polymer having a lower melt temperature than the polymer used to form the other layer. This allows heat energy to be applied sufficiently to heat the layers in contact and cause them to fuse, but not enough to cause undesirable melting and deformation of the other layer. Undesirable melting and deformation of the other layer can lead to packaging deformation and / or displacement and / or... Package Printing distortion on the membrane material.

[0070] Packaging bags

[0071] According to one aspect of this utility model Figures 1 to 5 The basic configuration of a packaging bag 1 according to the present invention is shown, wherein the packaging bag 1 can be made of a single sheet of raw material of packaging film, which is generally hexahedral. Further, the packaging bag 1 includes a pair of opposing first side surfaces 11 and second side surfaces 12, a pair of opposing third side surfaces 13 and fourth side surfaces 14, and a pair of opposing fifth side surfaces 15 and sixth side surfaces 16. Specifically, the first side surfaces 11 and second side surfaces 12 are... Figures 1 to 5 The third and fourth sides are shown as being located at the front and rear of the packaging bag 1 along the width direction Y, respectively, while the opposite third and fourth sides are located at the left and right sides of the packaging bag 1 along the length direction X, respectively. The two edges of the third side 13 along the Z-axis coincide with the Z-axis edges located to the left of the first side 11 and the second side 12; and the two edges of the fourth side 14 along the Z-axis coincide with the Z-axis edges located to the right of the first side 11 and the second side 12. Furthermore, the fifth side 15 and the sixth side 16 are... Figures 1 to 5The top and bottom of the packaging bag 1 along the vertical direction (Z-axis) are shown respectively, and are joined by their outer peripheries to the opposing first side 11 and second side 12, and the opposing third side 13 and fourth side 14 along the vertical direction (X) and vertical direction (Y) respectively. Specifically, the minimum size of the packaging bag 1 according to this invention is set to 100x20x50mm (length x width x height), and the maximum size is set to 600x500x300mm (length x width x height).

[0072] According to one aspect of the present invention, the aforementioned packaging film is a substantially continuous structure formed of one or more thermoplastic polymers and blends thereof, preferably a single-layer material, a co-extruded material, a two-layer laminate, or a three-layer laminate. Specifically, individual layers can be independently formed and joined together after forming by suitable layers and adhesives or by heat sealing. The multilayer according to the present invention can be divided into outer and inner layers, particularly, the inner layer is a polymer with a relatively low melting point, while the outer layer is a polymer with a relatively high melting point. More particularly, the outer layers of the multilayer can be joined together by heat sealing via gussets 17 arranged on the left and right sides of the fifth side 15 and the sixth side 16, respectively. Alternatively, the gussets 17 can also be arranged on the top and bottom sides of the third side 13 and the fourth side 14, respectively. More particularly, the multilayer film may include one or more bonding layers disposed between the other layers. When the polymers of adjacent layers are not otherwise miscible or soluble, multiple layers can be bonded together during extrusion by forming a bonding layer. This bonding layer may consist substantially of one or more functionalized polyolefins. In other aspects, the bonding layer may be a resin combination as disclosed in U.S. Patent 8,114,522. In some embodiments, the outer layers and the bonding layer are substantially merged into a single outer layer on the gusset 17 by incorporating one or both of the functionalized polyolefins into the outer layers.

[0073] According to one aspect of this utility model, an opening portion 2 can be provided on one of the sides of the packaging bag 1. For example, the opening portion 2 can be provided on one of the first side 11, or the second side 12, or the third side 13, or the fourth side 14, or the fifth side 15, or the sixth side 16. See [reference needed] Figures 1 to 5 Furthermore, the opening portion 2 can be integrally formed on at least one of the sides, see [reference]. Figure 1The diagram schematically illustrates two arrangements of opening portions, and those skilled in the art can implement various other effective opening portion arrangements based on this diagram. Furthermore, the opening portion 2 is configured to form an opening 21 with spaced-apart opposing sides, allowing access to the disposable absorbent article 1000 inside the packaging bag 1 by means of external force. Specifically, the opening 21 can extend along the longitudinal direction X, the vertical direction Z, or the longitudinal width direction Y and penetrate at least one of the sides, or it can be partially provided along the longitudinal direction X, the vertical direction Z, or the longitudinal width direction Y at at least one of the sides. More particularly, the opening 21 can also be partially provided on one or more of the sides, thereby allowing the user to access the hygiene product 1000 from different orientations, while also ensuring the overall rigidity of the packaging bag 1 by means of the partial opening. The corresponding embodiments will be described in detail below.

[0074] In a non-limiting embodiment of the opening portion according to the present invention, the opening portion 2 may be provided on the fifth side 15 located at the top of the packaging bag 1 along the vertical direction Z. See [reference needed]. Figure 1 The opening portion 2 includes at least a handle component 20 and an opening 21, wherein the opening 21 can be opened along... Figure 2 The longitudinal direction X shown extends and penetrates the entire longitudinal length of the fifth side 15, that is, the longitudinal length of the opening 21 is approximately equal to the longitudinal length of the fifth side 15; furthermore, a single handle component 20 can be provided on one of the sides, such as the fifth side 15. Alternatively, a pair of handle components 20 can be provided on two opposite sides. Specifically, when a single handle component 20 is provided, the handle component 20 can completely cover the opening 2, especially the opening 21, along the longitudinal direction X. Preferably, the opening 21 is provided on the center line of the fifth side 15 in the longitudinal direction X, so that the fifth side 15 is symmetrically arranged along the opening 21 in the longitudinal width direction Y. Further, a partially provided opening 21 that does not completely penetrate the entire length of the fifth side 15 can be provided on one of the sides of the packaging bag 1. Such a partially provided opening is described below using the fifth side 15 as an example. Specifically, such a partially provided opening 21 can also be 20% of the longitudinal length of the fifth side 15. See Figure 3 Specifically, in a non-limiting embodiment, the opening 21 may be arranged along the centerline of the fifth side 15 of the packaging bag 1 in the longitudinal direction X, and the longitudinal length of the opening 21 is symmetrical about the centerline of the fifth side 15 of the packaging bag 1 in the longitudinal width direction Y, such as... Figure 3 and Figure 7As shown. Alternatively, in another non-limiting embodiment, the opening 21 may be arranged along the centerline of the fifth side 15 of the packaging bag 1 in the longitudinal direction X near the left side, wherein a first boundary point 212 located on the left side of the opening 21 forms a first gap W1 with the left edge of the fifth side 15. Alternatively, in another non-limiting embodiment, the opening 21 may be arranged along the centerline of the fifth side 15 of the packaging bag 1 in the longitudinal direction X near the right side, wherein a second boundary point 213 located on the right side of the opening 21 forms a second gap W2 with the right edge of the fifth side 15. In these non-limiting embodiments, the handle component 20 may completely cover the longitudinal length of the fifth side 15 of the packaging bag 1 in the longitudinal direction X. Alternatively, the handle component 20 only covers the opening 21, and the longitudinal outer edge of the first end 202 of the handle component 20 is substantially separated from the first boundary point 212 on the left side of the opening 21 by a first interval W1, and the longitudinal outer edge of the second end 203 of the handle component 20 is substantially separated from the second boundary point 213 on the right side of the opening 21 by a first interval W2. Preferably, the first interval W1 and the second interval W2 are substantially the same in size to facilitate the setting of the cutting start point and end point of the opening 21, as detailed in [reference needed]. Figure 6 , Figure 7 and Figure 8 .

[0075] Similarly, openings 21, either integrally or partially provided in the opening portion 2 described above, can also be provided on other sides along the longitudinal direction X, or the longitudinal width direction Y, or the longitudinal height direction Z. Furthermore, the length of such partially provided openings 21 can be 20% of the longitudinal length, longitudinal height, or longitudinal width of the side on which they are located.

[0076] According to another aspect of the present invention, the packaging bag 1 is further provided with a sealing portion 3, which includes a first sealing member 30 and / or a second sealing member 31 disposed on the outer surface of the side adjacent to the opening 21 and / or on the inner surface of the built-in bagged product 1000, so as to be used in conjunction with an opening portion 2 that can be disposed on any of the different sides. In other words, the sealing portion 3 is adapted to an opening portion 2 integrally formed on at least one of the sides. Further, the sealing portion 3 includes at least a first sealing member 30 and / or a second sealing member 31. Further still, the sealing portion 3 is disposed on the side adjacent to the opening 21, disposed on the inner and / or outer side of the side; wherein at least one of the first sealing member 30 and / or the second sealing member 31 is mechanically engaged with the opposite side of the opening 21 to repeatedly seal the opening 21. In particular, at least one of the first sealing member 30 and the second sealing member 31 is a mechanical fastener capable of being attached to a flexible material, and it is disposed on the longitudinal bisector of the opening 21.

[0077] In a non-limiting embodiment of the sealing portion according to the present invention, the sealing portion 3, particularly the first sealing member 30, is capable of resisting contamination of the contents of the packaging bag 1. Its main objective is to protect the absorbent article 1000 contained therein from moisture and contamination, and to prevent its integrity from being compromised, etc. The first sealing member 30 may include a mechanical fastener attached to a flexible material, and may preferably be of the hook or loop type, and more preferably a re-adhesive member, which allows the consumer to open and securely close the packaging bag 1 multiple times as the product in the bag is used. For example, in the aforementioned embodiment where the opening portion 2 is located on the fifth side 15 at the top of the packaging bag 1 along the longitudinal height direction Z, the first sealing member 30 may be arranged near the longitudinal centerline of the fifth side 15. The opening 21 may be arranged along... Figure 1 When the longitudinal direction X extends and penetrates the entire longitudinal length of the fifth side 15 as shown, the first sealing member 30 is generally positioned at the intersection of the longitudinal centerline and the transverse centerline of the fifth side 15. When the fifth side 15 is provided as a partial opening that does not completely penetrate the entire length of the fifth side 15, the first sealing member 30 may be generally positioned near the opening 21, closer to the first side 11. Alternatively, the first sealing member 30 may be generally positioned near the opening 21, closer to the second side 12. Alternatively, the first sealing member 30 may be generally positioned at the opening 21 and arranged symmetrically with respect to the opening 21 along the longitudinal width direction Y. Further, the first sealing member 30 is located below and completely covered by the single handle member 20, as detailed in [see...]. Figure 6 , Figure 7 and Figure 8Alternatively, if a single handle component 20 covers the opening portion 2, a first sealing component 30 may be provided on the surface of the single handle component 20 pointing towards the opening portion 2, thereby sealing the opening portion 20 by means of the single handle component 20.

[0078] Since the handle component 20 is made of a material substantially the same as that of the packaging bag 1, and is also a substantially continuous structure formed of one or more thermoplastic polymers (including blends thereof), a hook or hook-type component corresponding to the first sealing component 30 may be provided below the handle component 20 at a position opposite to the first sealing component 30 to form an engagement between the handle component 20 and the first sealing component 30, thereby sealing the opening 21. Alternatively, if the first sealing component 30 is a re-adhesive component, the handle component 20 may also be directly adhered to the first sealing component 30 to form a seal for the opening 21.

[0079] According to another aspect of the present invention, for example in a non-limiting embodiment where the handle component 20 can completely cover the longitudinal length of the fifth side 15 of the packaging bag 1 along the longitudinal direction X, the two ends of the handle component 20, namely the first end 202 and the second end 203, can respectively have a first interval W1 and a second interval W2, thereby enabling it to... Figure 10 As shown, the first end 202 with a first interval W1 and the second end 203 with a second interval W2 are respectively joined to the third side 13 and the fourth side 14 located on both sides of the longitudinal axis of the fifth side 15 by heat sealing. Alternatively, the first end 202 with the first interval W1 and the second end 203 with the second interval W2 are directly joined to the fifth side 15, as shown. Figure 11 As shown.

[0080] According to another aspect of this invention, an opening portion 2 with a special configuration can also be provided, wherein the opening 21 is configured to extend from the first endpoint a and the second endpoint b at both ends of the first edge 151 of the fifth side 15 toward the third endpoint c and the fourth endpoint d at both ends of the opposite second edge 152, respectively, to form a first opening line 21a and a second opening line 21b. Additionally, a third opening line 21c, generally horizontal to the first edge 151, is provided, wherein the two ends of the third opening line 21c intersect the first opening line 21a and the second opening line 21b at junction points e and f. Therefore, a trapezoidal opening 21 is constructed on the fifth side 15, see [reference]. Figure 9 Those skilled in the art can also construct openings 21 of other shapes on the fifth side 15 in the same manner, such as generally elliptical, generally triangular, or other types of openings. Furthermore, generally rectangular or other types of openings 21 extending from the second edge 152, the third edge 153, or the fourth edge 154 can also be constructed.

[0081] In a non-limiting embodiment of the opening portion according to the present invention, see [reference needed]. Figure 9 A second sealing member 31 may also be specifically provided for sealing the linear, trapezoidal, or other shaped openings. The second sealing member 31 is configured to have a generally square second sealing body 310 and a sealing section 311 extending from the second sealing body 310. The sealing section 311 may, for example, be configured as an elongated rectangle, having a plurality of folds and sealing portions 3113 sequentially arranged along its length, see [reference needed]. Figure 12 and Figure 13 Specifically, in a non-limiting embodiment of the second sealing member according to the present invention, a first fold portion 3111 and a second fold portion 3112 are provided. Those skilled in the art can also determine the number of fold portions and their length and width dimensions according to the specific dimensions of the packaging bag 1. In particular, the second sealing member 31 is arranged generally transversely to the opening 21 and is located on the bisector of the longitudinal length of the opening 21. The multiple fold portions provided are particularly useful in preventing the sealing portion 311 of the second sealing member 31 from covering the opening 21 before the packaging bag 1 is opened, thereby providing sufficient operating space for opening the opening 21 of the packaging bag 1. In use, the second sealing member 31 has a first use state and a second use state. The second sealing body 310 and the sealing portion 3113 of the second sealing member 31 can be respectively glued to one of the sides of the packaging bag 1, for example, to... Figure 9 On the fifth side 15 shown, in particular, the second sealing body 310 of the second sealing member 31 can be bonded to the fifth side 15 by aligning the longitudinal end of the second sealing body 310 substantially with the first edge 151 of the fifth side 15. Preferably, the longitudinal centerline of the second sealing member 31 substantially coincides with the longitudinal centerline or longitudinal width centerline of one of the sides of the packaging bag 1, so that the second sealing member 31 is arranged substantially symmetrically on one of the sides of the packaging bag 1, thereby enhancing the sealing effect of the opening 21. In the first use state, the sealing section 311 of the second sealing member 31 can be stacked vertically so that the second fold 3112 overlaps the first fold 3111. In particular, the second fold 3112 extends beyond the first fold 3111 in its longitudinal direction, and especially the sealing section 311 extends beyond the second sealing body 310 in its longitudinal direction. More specifically, the sealing portion 3113 is configured to be coated with adhesive and covered with release paper, so that the sealing portion 3113 can be dragged by the user, see [link to documentation]. Figure 12In the second usage state, the user can drag the sealing portion 3113 covered with release paper to extend the sealing portion 311 fully along its longitudinal direction. Therefore, by peeling off the release paper, the user can engage the sealing portion 3113 with one of the sides of the packaging bag 1, allowing the consumer to open and securely close the packaging bag 1 multiple times as the contents are used. Specifically, the sealing portion 311 can also be configured to be generally located above the first sealing member 30, and the opening 21 can be sealed by the sealing portion 311 and the first sealing member 30, preferably in the form of a hook or loop. Furthermore, the second sealing member 31 is further covered by the handle member 20 described in the foregoing embodiment, so that the pressure of the handle member 20 strengthens the seal of the second sealing member 31 on the opening 21.

[0082] According to another aspect of this invention, the opening 21 can be formed by various types of weakening lines 211. See also Figures 14 to 17 The weakening line 211 may include multiple perforations individually created by mechanical methods or multiple perforations individually created by laser marking methods. It is desirable that the path of the weakening line 211 has a cut facet ratio of at least 0.67:1 and no greater than 3:1. For the packaging film of the type of packaging bag 1 envisioned herein, a cut facet ratio within this range achieves a suitable balance between making the packaging easy to open and minimizing strain deformation of the film along the path during opening, avoiding premature, unintended packaging breakage or opening, and maintaining the structural integrity of the packaging during shipment, handling, and other events. For the purposes of this document, the “cut facet ratio” of the perforation path is the ratio of the sum of the lengths of the perforations extending along the path direction of the weakening line 211 to the sum of the minimum distances of the unperforated / unmarked portions of the film between successive perforations. See also Figure 15 For example, a portion of a series of diagonally inclined rectangular perforations is a perforation along the path direction, and the "cutting face ratio" of the path of the perforation is (L1+L2+L3):(N1+N2+N3).

[0083] In use, the absorbent article 1000 can be arranged in the packaging bag 1, with its top and bottom surfaces along the vertical direction Z1 and abutting against each other along the longitudinal direction X of the packaging bag 1, see [reference]. Figures 2 to 4 The absorbent article 1000 is arranged on the far left, and Figure 5 The absorbent article 1000 is arranged on the far right. Alternatively, the absorbent article 1000 can be stacked in the packaging bag 1 along the vertical Z1 direction using its top and bottom surfaces, as shown in the figure. Figures 3 to 4 The absorbent article 1000 shown is arranged in the middle of the packaging bag 1, and Figure 5An absorbent article 1000 is arranged on the bottom side. It is particularly noteworthy that, in this invention, the handle component 20 and the opening 21, as well as the sealing portion 3, are arranged in a matching manner on one of the opposing first side surface 11 and second side surface 12, or on one of the third side surface 13 and fourth side surface 14, or on one of the fifth side surface 15 and sixth side surface 16. Specifically, the handle component 20 and the opening 21 are arranged on the center line along the longitudinal direction X of one of the first side surface 11 and second side surface 12, or alternatively on the center line along the longitudinal height direction Z of one of the third side surface 13 and fourth side surface 14, or alternatively on the center line along the longitudinal direction X of one of the fifth side surface 15 and sixth side surface 16.

[0084] In a non-limiting embodiment of the present invention, specifically, when an opening 21 extending through the longitudinal length or longitudinal height is provided on one of the sides, particularly when only the first sealing member 30 of the sealing part 3 is provided, the absorbent product 1000 can be removed one by one as needed by pulling the handle member 20 to separate it from the first sealing member 30 and by pushing the weakening line 211 of the opening 21 with fingers. When it is not necessary to remove the absorbent product 1000, the handle member 20 can be lowered so that the falling force of the handle member 20 combines with the first sealing member 30, thereby sealing the opening 21 and further separating the opening 21 from the external environment, especially the polluted environment. The method of use is also applicable to packaging bags 1 with partial openings 21, which will not be described in detail here.

[0085] In a non-limiting embodiment of the present invention, specifically, when an opening 21 extending through the longitudinal length or height is provided on one of the sides, particularly when a first sealing member 30 and a second sealing member 31 of the sealing portion 3 are provided therein, the absorbent articles 1000 can be removed one by one as needed by pulling the handle member 20 so that the handle member 20 no longer abuts against the second sealing member 31 and the opening 21, and further by pushing the weakening line 211 of the opening 21 with fingers. When it is not necessary to remove the absorbent articles 1000, the sealing section 311 of the second sealing member 31 can be dragged to extend the second sealing body 310, as described above. This is particularly suitable for packaging bags 1 with large geometric dimensions. Furthermore, the adhesive portion of the sealing section 311 of the second sealing member 31 is combined with one of the sides of the packaging bag 1, or alternatively, the sealing section 311, preferably of the hook or loop type, is combined with the first sealing member 30 located substantially below the sealing section 311, thereby achieving the sealing of the opening 21. Furthermore, the user can release the handle component 20, and the downward pressure of the handle component 20 strengthens the seal of the second sealing component 31 on the opening 21, further isolating the opening 21 from the external environment, especially a polluted environment. The method of use is also applicable to packaging bags 1 with partial openings 21, and will not be described in detail here.

[0086] Therefore, according to the design concept of the packaging bag for disposable absorbent products of this utility model, the opening constructed on the side of the packaging bag can be effectively protected by providing a matching opening and sealing part on at least one side of the packaging bag. Furthermore, when the user handles the packaging, the opening on the side surface is prevented from being further torn, as is the case in the prior art, thus achieving more effective protection for the absorbent product inside the packaging bag. In particular, the separately provided second sealing member further contributes to a tight seal of the opening.

[0087] The embodiments of this utility model have been illustrated and described herein, but those skilled in the art should understand that various modifications, omissions, and additions can be made without departing from the spirit and scope of this utility model. It should not be understood as limited to the specific embodiments described herein, but encompasses all possible embodiments embodied within the scope and equivalents of the features described in the appended claims.

[0088] The dimensions and values ​​disclosed herein should not be construed as strictly limited to the precise numerical values ​​stated. Rather, unless otherwise specified, each such dimension is intended to represent the value and a functionally equivalent range around that value. For example, a dimension disclosed as “40 mm” is intended to represent “approximately 40 mm”.

[0089] All documents referenced in the “Detailed Description” section are incorporated herein by reference in the relevant sections; no reference to any document should be construed as an admission that it is prior art concerning this utility model. In the event of any conflict between the meaning or definition of any term in this written document and the meaning or definition of any term in the referenced documents, the meaning or definition assigned to the term in this written document shall prevail.

[0090] While specific embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that many other changes and modifications can be made without departing from the spirit and scope of the present invention. Therefore, the appended claims are intended to cover all such changes and modifications within the scope of the present invention.

[0091] When describing elements of the present invention or their preferred embodiments(s), the articles “a,” “an,” “the,” and “the” are intended to indicate the presence of one or more elements. The terms “comprising,” “including,” and “having” are intended to be inclusive and mean that additional elements may be present in addition to the listed elements. Many modifications and variations may be made to the present invention without departing from the spirit and scope thereof. Therefore, the above embodiments are not intended to limit the scope of the present invention.

Claims

1. A packaging bag for disposable absorbent articles comprising a pair of first side (11) and second side (12) opposite each other, a pair of third side (13) and fourth side (14) opposite each other, and a pair of fifth side (15) and sixth side (16) opposite each other, characterized in that, Also included are: an opening portion (2) and a sealing portion (3) integrally formed on at least one of the side surfaces, wherein the opening portion (2) is configured to form an opening (21) with two opposite sides spaced apart to allow access to the disposable absorbent article (1000) in the packaging bag (1) by means of an external force; the sealing portion (3) includes a first sealing member (30) and / or a second sealing member (31) arranged on the outer surface of the side surface adjacent to one side of the opening (21) and / or on the inner surface side of the side surface facing the packaged product (1000) inside; wherein at least one of the first sealing member (30) and / or the second sealing member (31) is capable of mechanically combining with the other side of the opening (21) opposite to the one side to repeatedly seal the opening (21).

2. The packaging bag for disposable absorbent articles according to claim 1, wherein the opening (21) extends along the longitudinal direction (X) or the longitudinal height direction (Z) or the longitudinal width direction (Y) and penetrates at least one of the side surfaces, or is partially arranged on at least one of the side surfaces along the longitudinal direction (X) or the longitudinal height direction (Z) or the longitudinal width direction (Y).

3. The package for disposable absorbent articles according to claim 2, characterized in that, The opening (21) is arranged on the center line of one of the side surfaces along the longitudinal direction (X) or the longitudinal height direction (Z) or the longitudinal width direction (Y).

4. The package for disposable absorbent articles according to claim 2, characterized in that, The length of the opening (21) partially arranged on one of the side surfaces is about 20% of the longitudinal length or the longitudinal width or the longitudinal height dimension of the side surface.

5. The package for disposable absorbent articles according to claim 1, characterized in that, The packaging bag (1) further comprises a handle member (20), wherein a single handle member (20) can be arranged on one of the side surfaces, or a pair of handle members (20) can be arranged on two side surfaces opposite to each other, respectively.

6. The package for disposable absorbent articles according to claim 5, characterized in that, The single handle member (20) covers the opening portion (2) and is provided with the first sealing member (30) on the surface thereof facing the opening portion (2).

7. The package for disposable absorbent articles according to claim 1, characterized in that, At least one of the first sealing member (30) and the second sealing member (31) is a mechanical fastener capable of being connected to a flexible material, and is arranged on the longitudinal bisector of the opening (21).

8. The package for disposable absorbent articles according to claim 1, characterized in that, The second sealing member (31) has a substantially square-shaped second sealing body (310) and a sealing segment (311) extending from the second sealing body (310); wherein the sealing segment (311) includes a first folding portion (3111), a second folding portion (3112) and a sealing portion (3113) arranged along the longitudinal direction thereof.

9. The package for disposable absorbent articles according to claim 8, characterized in that, The second sealing member (31) is arranged substantially transversely to the opening (21) and on the longitudinal bisector of the opening (21).

10. The package for disposable absorbent articles according to claim 9, characterized in that, The second sealing member (31) has a first use state and a second use state, wherein in the first use state, the first folding portion (3111) and the second folding portion (3112) of the second sealing member (31) are superimposed from bottom to top, and the sealing segment (311) extends beyond the second sealing body (310) in the longitudinal direction thereof; In the second state of use, the sealing section (311) of the second sealing member (31) extends completely along its longitudinal direction, and the sealing site (3113) is capable of being mechanically engaged with the side surface on which it is located or with the first sealing member (30).

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