A layered structure of wiping material and an integrated folding device
By using a structure that interlocks Z-shaped and W-shaped folding components, the problems of paper towels being easily soiled and loosened are solved, achieving stability and convenient dispensing of wet wipes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YIXIANG PERSONAL HOME CARE HEALTH RESEARCH (HENAN) CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-30
Smart Images
Figure CN224426765U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hygiene products technology, specifically to a wiping material layered structure and an integrated folding device. Background Technology
[0002] Tissues can be directly pulled out and used after opening the packaging, offering advantages such as convenience and reduced waste. Currently, there are two main types of tissue folding methods: one is the continuous pull type, which uses a V-shaped staggered fold, commonly known as "hand-in-hand." The advantage is that it allows for continuous pulling, but the disadvantage is that too much of the folded tissue is exposed, especially wet wipes and toilet paper, which are easily contaminated if exposed for extended periods. Manually stuffing the tissues back into the packaging can easily contaminate the wet wipes.
[0003] Another type is the Z-fold, which requires going deep into the packaging and pulling out the tissue every time you need to use it. This is inconvenient and may also contaminate the wet wipes. Utility Model Content
[0004] This invention provides a layered structure for wiping materials and an integrated folding device to solve the technical problems in the prior art.
[0005] To solve the above problems, the wiping material stacking structure provided by this utility model adopts the following technical solution: it includes several stacking units stacked in the vertical direction, and the stacking units include, from top to bottom, a first Z-shaped folding member, a first W-shaped folding member, a second Z-shaped folding member, and a second W-shaped folding member;
[0006] The first W-shaped fold and the second W-shaped fold are staggered in the vertical direction to make the thickness of the left and right sides of the wiping material stack structure uniform; the second Z-shaped fold is used to connect the first W-shaped fold and the second W-shaped fold to improve the stability of the wiping material stack structure.
[0007] As a further improvement, the first Z-shaped folding member includes an upper bending portion, a middle portion and a lower bending portion, and the structure of the second Z-shaped folding member is the same as that of the first Z-shaped folding member; the second Z-shaped folding member is arranged in the opposite direction to the first Z-shaped folding member to cooperate with the first W-shaped folding member and the second W-shaped folding member.
[0008] As a further improvement, the first W-shaped folding member includes an upper folding portion, a middle folding portion, and a lower folding portion, and the structure of the second W-shaped folding member is the same as that of the first W-shaped folding member.
[0009] As a further improvement, the sides of the first W-shaped fold and the second W-shaped fold extend beyond the first Z-shaped fold or the second Z-shaped fold to form protrusions. The protrusions fit tightly against the packaging bag so that the packaging bag reacts to the protrusions to prevent the wiping material layer structure from loosening.
[0010] As a further improvement, the width of the protrusion is 5-10 mm.
[0011] As a further improvement, the upper or lower bend has an overlap with the adjacent upper or lower fold, forming a physical overlap to improve stacking stability and achieve a continuous pulling effect.
[0012] As a further improvement, the width of the overlapping portion is 1-10 mm.
[0013] This utility model also provides an integrated folding device for preparing the above-mentioned wiping material stacked structure, including a Z-shaped folding mechanism for folding the first Z-shaped folding piece or the second Z-shaped folding piece, and a W-shaped folding mechanism for folding the first W-shaped folding piece or the second W-shaped folding piece.
[0014] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:
[0015] 1. The present invention adopts a structure of Z-shaped folding parts combined with W-shaped folding parts, which reduces the leakage of wet wipes, eliminates the need to stuff the wet wipes back into the packaging bag, reduces the risk of contamination, and the overall structure is stable and not easily loosened during transportation.
[0016] If the Z-shaped folding component is used as an overlap, and is directly folded in an alternating W-shape, it will collapse in the middle due to gravity. Furthermore, if all components use alternating W-shapes, stress concentration will occur if the composite folding component is subjected to lateral forces or if the stacking is unbalanced. This stress will concentrate at the overlap, making it prone to disintegration during transportation and production, affecting the user experience. This invention uses a Z-shaped folding component as the overlapping component. The Z-shaped folding overlaps the upper and lower W-shaped folds, forming a natural interlock. Simultaneously, the Z-shaped folding component is located between the two W-shaped folding components, forming a "wall-like alternating overlap." From the perspective of the composite folding body as a whole, the stress distribution is more even. From the perspective of a single folding component structural unit, the Z-shaped fold runs through the entire composite folding body, which can more evenly distribute the pressure of the upper folding components. Based on these two aspects, the composite folding body structure can reduce stress concentration and is more stable.
[0017] 2. When in use, the paper of the W-shaped fold is located on one side. When the paper is pulled out, it gradually unfolds along the direction of the force when the W-shaped fold is subjected to an upward pulling force, making it easier to pull out.
[0018] In addition, in this structure of tissue paper, the lower fold of the first Z-shaped fold and the upper fold of the second Z-shaped fold are in contact with each other. When the first Z-shaped fold is pulled out, the second Z-shaped fold will be stressed in advance due to friction, achieving a pre-loosening effect, making it easier to pull out, while ensuring continuous pulling effect.
[0019] 3. The adjacent folds are in full contact with each other, so that the small exposed part is exposed on one side of the whole edge. When pulling out, you can pinch the whole edge instead of just one corner, which makes the paper towel less likely to break when pulled out.
[0020] 4. The composite stacked units overlap and couple with each other, making the paper towels more stable when stacked.
[0021] When the tissues are stacked to the set height, they are packaged in a bag. After packaging, the top layer of tissues is pressed to make the stacked tissues flatter. At the same time, the sides of the tissues will expand to a certain extent, and the protrusions on the sides of the tissues will fit tightly against the bag. The packaging will give a reaction force to the composite folds, which will make the W-shaped and Z-shaped folds interlock more tightly. Attached Figure Description
[0022] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:
[0023] Figure 1 This is a schematic diagram of the layered structure of the wiping material of this utility model;
[0024] Figure 2 This is a schematic diagram of the first Z-shaped folded component of the wiping material layered structure of this utility model;
[0025] Figure 3 This is a schematic diagram of the first W-shaped folding component in the layered structure of the wiping material of this utility model;
[0026] Figure 4 This is a reference diagram showing the extraction state of the layered structure of the wiping material of this utility model;
[0027] Figure 5 The first W-shaped folded component of the wiping material layered structure of this utility model is shown in the unfolded force diagram.
[0028] Figure 6 The first Z-shaped folded component of the wiping material layered structure of this utility model is shown in the unfolded force diagram.
[0029] Figure 7 This is a force diagram of the first W-shaped folded component of the layered structure of the wiping material of this utility model;
[0030] Figure 8 This is a schematic diagram of the Z-shaped folding mechanism of the wiping material stacking structure of this utility model;
[0031] Figure 9This is a schematic diagram of the W-shaped folding mechanism of the wiping material layered structure of this utility model;
[0032] Figure 10 This is a schematic diagram of the structure of Embodiment 2 of the W-shaped folding mechanism of the wiping material layering structure of this utility model.
[0033] Explanation of reference numerals in the attached figures:
[0034] 1. First Z-shaped folding piece; 101. Upper bend; 102. Middle section; 103. Lower bend; 2. First W-shaped folding piece; 201. Upper fold; 202. Middle fold; 203. Lower fold; 3. Second Z-shaped folding piece; 4. Second W-shaped folding piece; 5. Overlapping section; 6. Protrusion; 7. Z-shaped folding mechanism; 701. First left rear folding plate; 702. First right rear folding plate; 703. First overlapping rod; 704. First side folding plate; 705. First horizontal guide plate; 706. First upper horizontal folding plate; 707. First lower horizontal folding plate; 708. First upper auxiliary folding plate; 709. First fixing piece; 8. W Folding mechanism; 801, second left rear folding plate; 802, second right rear folding plate; 803, second right side folding plate; 804, second bending plate; 805, second pressure roller; 806, second base plate; 807, second auxiliary pressure plate; 808, second left side folding plate; 809, second overlapping rod; 901, third overlapping rod; 902, third upper guide folding piece; 903, third lower guide folding piece; 904, third fixing piece; 905, third upper horizontal folding plate; 906, third side auxiliary folding plate; 907, third upper auxiliary folding plate; 908, third horizontal guide rod; 909, third side folding plate; 910, third lower horizontal folding plate. Detailed Implementation
[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0036] In existing technologies, the folding methods for tissue paper products are mainly divided into two types: V-shaped staggered folding and Z-shaped folding. V-shaped staggered folding is widely used in toilet paper or wet wipes. Its advantage is that it can be pulled out continuously, but too much of it comes out at once. This is generally not a problem for ordinary toilet paper, but for wet wipes, too much leakage can easily lead to contamination of the wet wipes. If the wipes are put back into the packaging bag, they are likely to become contaminated.
[0037] The Z-shaped fold requires going deep into the packaging and pulling out the tissue every time it is pulled out, which is inconvenient and may also contaminate the wet wipes.
[0038] To address the aforementioned issues, this invention features a W-shaped folding design. The advantage of the W-shaped fold is its ease of extraction. Compared to the Z-shaped fold, which moves from left to right, the direction of the force changes during a Z-shaped fold. With a W-shaped fold, the paper unfolds gradually along the direction of the upward pulling force, making extraction easier. Furthermore, the overlapping portion of the W-shaped fold is relatively narrow, allowing for continuous extraction while preventing excessive leakage of wet tissues.
[0039] However, the W-shaped folding method also has obvious drawbacks. The W-shaped folding parts are set on the left and right sides. Due to the narrow overlap in the middle, the W-shaped folding parts are easy to unfold or even deform during transportation, making it difficult to achieve continuous drawing when in use.
[0040] To address this, we installed a Z-shaped folding component between the two W-shaped folding components. The Z-shaped folding component acts as an overlap, with the Z-shaped folding overlapping the upper and lower W-shaped folds to form a natural lock. At the same time, the Z-shaped folding component is located in the middle of the two W-shaped folding components, forming a "wall-like staggered overlap". From the perspective of the composite folding body as a whole, the stress is more evenly distributed.
[0041] After introducing the basic principles of this utility model, various non-limiting embodiments of this utility model are described in detail below. Any quantity of elements in the accompanying drawings is for illustrative purposes only and not for limitation, and any naming is for distinction only and has no limiting meaning.
[0042] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.
[0043] Example 1 of the wiping material layered structure and integrated folding device provided by this utility model:
[0044] like Figures 1-7 As shown, the wiping material stacked structure includes several stacked units arranged vertically. From top to bottom, each stacked unit includes a first Z-shaped fold 1, a first W-shaped fold 2, a second Z-shaped fold 3, and a second W-shaped fold 4. In this embodiment, the tissue is primarily a wet wipe (toilet paper can also use this structure, but the effect is not significantly different from the V-shaped fold), such as wet wipes, wet toilet paper, and down jacket wipes.
[0045] like Figures 1-3 As shown, the first W-shaped folding member 2 and the second W-shaped folding member 4 are staggered in the vertical direction to make the thickness of the left and right sides of the wiping material stack structure uniform; the second Z-shaped folding member 3 is used to connect the first W-shaped folding member 2 and the second W-shaped folding member 4 to improve the stability of the wiping material stack structure.
[0046] like Figure 2 As shown, the first Z-shaped folding member 1 includes an upper bending portion 101, a middle portion 102, and a lower bending portion 103. The structure of the second Z-shaped folding member 3 is the same as that of the first Z-shaped folding member 1. The second Z-shaped folding member 3 is arranged in the opposite direction to the first Z-shaped folding member 1 to cooperate with the first W-shaped folding member 2 and the second W-shaped folding member 4.
[0047] like Figure 3 As shown, the first W-shaped folding member 2 includes an upper folding part 201, a middle folding part 202 and a lower folding part 203, and the structure of the second W-shaped folding member 4 is the same as that of the first W-shaped folding member 2.
[0048] The sides of the first W-shaped fold 2 and the second W-shaped fold 4 extend beyond the first Z-shaped fold 1 or the second Z-shaped fold 3, forming a protrusion 6. The protrusion 6 fits tightly against the packaging bag so that the packaging bag reacts to the protrusion 6, preventing the layered structure of the wiping material from loosening. The width of the protrusion 6 is 5-10mm.
[0049] After packaging, press the top layer of tissue paper to make the stacked tissue paper flatter. At the same time, the sides of the tissue paper will expand to a certain extent. The protrusions 6 on the sides of the tissue paper are tightly attached to the packaging bag. The packaging body will give a reaction force to the composite folded body. Under the reaction force, the W-shaped folded body and Z-shaped folded body will be intertwined more tightly.
[0050] The upper bend 101 or lower bend 103 overlaps with the adjacent upper fold 201 or lower fold 203, forming a physical overlap to improve stacking stability and achieve continuous draw. The width of the overlap 5 is 1-10mm, generally set to 10mm. Through the cooperation of Z-shaped and W-shaped folding components, the width of the overlap 5 can be relatively narrow, thus preventing excessive leakage of wet tissues. Furthermore, adjacent folding components are in full-edge contact, ensuring that the exposed portion is a single edge, allowing for a full-edge pinch during draw, rather than just a corner, thus preventing the tissue from tearing during extraction.
[0051] like Figure 5 As shown, when the paper is pulled out, the entire paper of the W-shaped fold is located on one side. When the paper is pulled out, it gradually unfolds along the direction of the force when the W-shaped fold is subjected to an upward pulling force, making it easier to pull out.
[0052] like Figure 8 and Figure 9 As shown, this embodiment also provides an integrated folding device for preparing the above-mentioned wiping material stacked structure, including a Z-shaped folding mechanism 7 for folding the first Z-shaped folding piece 1 or the second Z-shaped folding piece 3, and a W-shaped folding mechanism 8 for folding the first W-shaped folding piece 2 or the second W-shaped folding piece 4.
[0053] The Z-shaped folding mechanism 7 includes a first left rear folding plate 701, a first right rear folding plate 702, a first overlapping rod 703, a first side folding plate 704, a first horizontal guide plate 705, a first upper horizontal folding plate 706, a first lower horizontal folding plate 707, a first upper auxiliary folding plate 708, and a first fixing piece 709.
[0054] During the production process, the spunlace fabric is continuously guided and enters the Z-folding device along the rear surfaces of the first left rear folding plate 701 and the first right rear folding plate 702. On one side, the Z-folding and lower folding layer is completed by the first left rear folding plate 701, the first side folding plate 704, and the lower folding plate. The lower end of the first left rear folding plate 701 gradually shortens (narrows), and part of it passes under the lower surface of the first horizontal guide plate 705. The excess width of the wet paper towel covers the outer surface of the first side folding plate 704 and passes under the first side folding plate 704, and together they enter the device from the first left rear folding plate 702. The upper surface of the horizontal folding plate 707 passes through to complete the downward folding layer of the Z-shaped fold. On the other side, the first right rear folding plate 702, the first upper horizontal folding plate 706, and the first upper auxiliary folding plate 708 jointly complete the upward folding layer of the Z-shaped fold. Similarly, the lower end of the first right rear folding plate 702 retracts, and the excess part moves along the outer side of the first right rear folding plate 702 and the outer side of the first upper horizontal folding plate 706, and enters the gap between the first upper auxiliary folding plate 7089 and the first upper horizontal folding plate 706. As it moves continuously, it gradually presses down to form the upward folding layer. The W-shaped fold passed under the Z-shaped fold and through the upper surface of the first fixing piece 709, and was manually overlapped here to complete the overlap between the W and Z shapes. A pressure roller is set in front, and the height difference between the pressure roller and the first fixing piece 709 is used to complete the first reinforcement on the first fixing piece 709, and the second reinforcement is completed at the pressure roller.
[0055] The W-shaped folding mechanism 8 includes a second left rear folding plate 801, a second right rear folding plate 802, a second right side folding plate 803, a second bending plate 804, a second pressure roller 805, a second base plate 806, a second auxiliary pressure plate 807, and a second left side folding plate 808.
[0056] The spunlace fabric passes over and adheres to the lower surfaces of the second left rear fold plate 801 and the second right rear fold plate 802. The lower ends of the second left rear fold plate 801 and the second right rear fold plate 802 gradually narrow. When the spunlace fabric passes the second right rear fold plate 803, the side of the spunlace fabric abuts against the side of the second right rear fold plate 803. At this time, the spunlace fabric bends inward to the top of the second bottom plate 806. When it passes the second bending plate 804, the bent part of the spunlace fabric adheres tightly to the surface of the second bending plate 804, forming an intermediate fold 202. A gap is reserved between the second pressure roller 805 and the second bottom plate 806 for the spunlace fabric to pass through. When the bent part of the spunlace fabric continues to move towards the second pressure roller 805, it is squeezed and folded by the second pressure roller 805, forming an upward fold 201. On the other side, the spunlace fabric passes sequentially through the second right rear folding plate 802 and the second left folding plate 808. When the other side of the spunlace fabric passes the second left folding plate 808, it partially wraps around the outer surface of the second left folding plate 808. The second auxiliary pressure plate 807 cooperates with the second left folding plate 808. When the portion wrapped around the outer surface of the second left folding plate 808 passes the second auxiliary pressure plate 807, it is forced to fold downwards by the restriction of the second auxiliary pressure plate 807, causing the spunlace fabric on that side to fold into a downward folded portion 203. Then, it overlaps with the spunlace fabric of the Z-shaped folding mechanism through the second overlapping rod 809. Example 2
[0057] like Figure 10 As shown, this embodiment provides a W-shaped folding mechanism 8, which includes a third overlapping rod 901, a third upper guide folding member 902, a third lower guide folding member 903, a third fixing piece 904, a third upper horizontal folding plate 905, a third side auxiliary folding plate 906, a third upper auxiliary folding plate 907, a third horizontal guide rod 908, a third side folding plate 909, and a third lower horizontal folding plate 910.
[0058] The W-shaped folding mechanism 8 is an improvement on the Z-shaped folding mechanism 7. Specifically, by setting a third horizontal guide rod 908, it folds the Z-shaped folding piece again to form a W-shaped folding piece. In actual operation, the dimensions of the W-shaped folding mechanism 8 can be adjusted according to the required size of the W-shaped folding piece.
[0059] While this specification has shown and described numerous embodiments of the present invention, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and intent of the present invention. It should be understood that various alternatives to the embodiments of the present invention described herein may be employed in the practice of the present invention. The appended claims are intended to define the scope of protection of the present invention and therefore cover the modular compositions, equivalents, or alternatives within the scope of these claims.
Claims
1. A wipe material laminate structure characterized by, It includes several stacked units arranged in the vertical direction. The stacked units, from top to bottom, include a first Z-shaped folding piece (1), a first W-shaped folding piece (2), a second Z-shaped folding piece (3), and a second W-shaped folding piece (4). The first W-shaped fold (2) and the second W-shaped fold (4) are staggered in the vertical direction so that the thickness of the left and right sides of the wiping material stack is uniform; the second Z-shaped fold (3) is used to connect the first W-shaped fold (2) and the second W-shaped fold (4) to improve the stability of the wiping material stack.
2. The wipe material laminate structure according to claim 1, characterized in that: The first Z-shaped folding member (1) includes an upper bending part (101), a middle part (102) and a lower bending part (103). The structure of the second Z-shaped folding member (3) is the same as that of the first Z-shaped folding member (1). The second Z-shaped folding member (3) is set in the opposite direction to the first Z-shaped folding member (1) to cooperate with the first W-shaped folding member (2) and the second W-shaped folding member (4).
3. The wipe material laminate structure according to claim 2, wherein: The first W-shaped folding piece (2) includes an upper folding part (201), a middle folding part (202) and a lower folding part (203), and the structure of the second W-shaped folding piece (4) is the same as that of the first W-shaped folding piece (2).
4. The wipe material laminate structure according to claim 3, wherein: The sides of the first W-shaped fold (2) and the second W-shaped fold (4) extend beyond the first Z-shaped fold (1) or the second Z-shaped fold (3) to form a protrusion (6). The protrusion (6) fits tightly against the packaging bag so that the packaging bag reacts to the protrusion (6) to prevent the wiping material layer structure from loosening.
5. The wiping material laminate structure according to claim 4, characterized in that: The width of the protrusion (6) is 5-10 mm.
6. The wiping material laminate structure according to claim 4, characterized in that: The upper bend (101) or lower bend (103) has an overlap (5) with the adjacent upper fold (201) or lower fold (203), forming a physical overlap to improve stacking stability and achieve continuous pulling effect.
7. The wiping material laminate structure according to claim 6, characterized in that: The width of the overlapping portion (5) is 1-10 mm.
8. An integrated folding device for preparing a laminated structure of wiping material as described in any one of claims 1 to 7, characterized in that, It includes a Z-type folding mechanism (7) for folding the first Z-type folding piece (1) or the second Z-type folding piece (3), and a W-type folding mechanism (8) for folding the first W-type folding piece (2) or the second W-type folding piece (4).