WO2025223545A1 - 包装袋和带有包装袋的洗涤用产品 - Google Patents

包装袋和带有包装袋的洗涤用产品

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Publication number
WO2025223545A1
WO2025223545A1 PCT/CN2025/091207 CN2025091207W WO2025223545A1 WO 2025223545 A1 WO2025223545 A1 WO 2025223545A1 CN 2025091207 W CN2025091207 W CN 2025091207W WO 2025223545 A1 WO2025223545 A1 WO 2025223545A1
Authority
WO
WIPO (PCT)
Prior art keywords
packaging bag
sheet
height
width
insert
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.)
Pending
Application number
PCT/CN2025/091207
Other languages
English (en)
French (fr)
Inventor
荣嘉绍
田晓
徐丹
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.)
Procter and Gamble Co
Original Assignee
Procter and Gamble Co
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 Procter and Gamble Co filed Critical Procter and Gamble Co
Publication of WO2025223545A1 publication Critical patent/WO2025223545A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D29/00—Sacks or like containers made of fabrics; Flexible containers of open-work, e.g. net-like construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture

Definitions

  • the embodiments of this disclosure generally relate to the field of packaging technology, and more specifically, to a packaging bag and a washing product with the packaging bag.
  • granular detergents such as laundry powder are sold in bags made of waterproof or water-resistant flexible film.
  • the most common granular detergent bags are rectangular pillow-shaped, formed by sealing two rectangular sheets together.
  • These detergent products are sold in physical stores, due to the flat shape of the bags, they are usually stacked on top of each other for storage or shelf display.
  • the detergent granules in the bags at the bottom are compacted and no longer fluffy, making it inconvenient to pour them out and reducing consumer comfort.
  • the stacked shelf arrangement makes it difficult for consumers to quickly identify and pick up the products, which is detrimental to sales.
  • the flat shape of the packaging bag is inconvenient for daily storage.
  • sealing such openings with clips or rubber bands can still lead to accidental leakage, and they may not form an effective moisture/water barrier, causing the detergent to become damp and clump, making it difficult to pour out of the packaging bag, and over time, degrading the detergent's washing effect.
  • the packaging bag needs to be equipped with a spout for dispensing granular solids and a component to assist in pouring so that consumers can use detergents easily.
  • the purpose of this disclosure is to address at least one aspect of the aforementioned problems and defects existing in the prior art.
  • a packaging bag comprising a first sheet and a second sheet, wherein at least a portion of the edges of the first sheet and the second sheet are joined together to form a receiving space of the packaging bag, characterized in that the ratio of the width to the height of the first sheet and the ratio of the width to the height of the second sheet are both in the range of 1-1.5.
  • the ratio of the width to the height of the first sheet and the ratio of the width to the height of the second sheet are both in the range of 1.2-1.5.
  • At least a portion of the edges of the first sheet and the second sheet are joined together to form an edge banding with a width of 8 mm to 12 mm.
  • the packaging bag further includes a bottom insert, wherein the bottom edges of the first sheet and the second sheet are respectively joined to the periphery of the bottom insert, and the remaining portions of the edges of the first sheet and the second sheet are joined to form a receiving space of the packaging bag, wherein the bottom insert can be folded in half and sandwiched between the first sheet and the second sheet, so that the entire packaging bag forms a flat shape.
  • the bottom edge of the first sheet and the bottom edge of the second sheet are respectively joined to the periphery of the insert to form an edge band with a width of 8 mm to 12 mm.
  • the first sheet, the second sheet, and the insert all include multiple composite material layers.
  • the first sheet, the second sheet, and the insert each comprise two composite material layers.
  • the outermost material layer of the plurality of composite material layers is a uniaxial tensile composite material layer, and the density of the innermost material layer is less than the density of the other material layers.
  • the middle material layer among the plurality of composite material layers is a biaxially oriented composite material layer.
  • the width of the first and second sheets of the packaging bag is 350 mm to 420 mm, the height is 240 mm to 300 mm, and the height of the bottom after being folded is 30 mm to 70 mm.
  • a first inclined edge is provided at one corner of the top of the packaging bag, which is inclined toward the top center line of the packaging bag.
  • the packaging bag also includes a handle, which is disposed at the first inclined edge and the grip portion of the handle is inclined toward the top center line of the packaging bag.
  • the handle is rigid and ear-shaped.
  • the top corner of the packaging bag is provided with a second inclined side that is inclined toward the top center line of the packaging bag, and the packaging bag also includes a mouth portion disposed at the second inclined side, the axis of the mouth portion being inclined relative to the top of the packaging bag and the opening of the mouth portion facing away from the bottom of the packaging bag.
  • the mouth is rigid and cylindrical in shape, wherein the diameter of the cylinder is 21 mm to 28 mm.
  • a packaged washing product comprising a packaging bag according to any one of claims 1-14, characterized in that the packaging bag contains granular solids.
  • the height of the remaining space after the packaging bag is filled with the granular solid is 9 cm to 11 cm.
  • the median weight particle size of the particulate solid is between 200 ⁇ m and 1000 ⁇ m; the bulk density is between 0.3 g/ cm3 and 0.9 g/ cm3 .
  • the median weight particle size of the particulate solid is between 250 ⁇ m and 950 ⁇ m; the bulk density is between 0.35 g/ cm3 and 0.8 g/ cm3 .
  • the median weight particle size of the particulate solid is between 300 ⁇ m and 850 ⁇ m.
  • the packaging bag provided according to the foregoing exemplary embodiments of the present disclosure has the advantage that the packaging bag can be easily erected after containing particulate solids, and the particulate solids inside remain loose after being erected for a long time, making it easy to pour out.
  • the packaging bag is provided with a spout for dispensing particulate solids and a component for assisting in pouring so that the particulate solids contained in the packaging bag can be discharged and distributed in a controlled and smooth manner.
  • Figure 1 shows a schematic diagram of the back structure of a packaging bag according to an exemplary embodiment of the present disclosure, wherein the insert bottom is folded.
  • Figure 2 is a schematic diagram of the front structure of a packaging bag according to an exemplary embodiment of the present disclosure, wherein the bottom is folded;
  • Figure 3 is a schematic diagram of the bottom structure of a packaging bag according to an exemplary embodiment of the present disclosure, wherein the insert is unfolded.
  • a packaging bag comprising a first sheet and a second sheet, wherein at least a portion of the edges of the first sheet and the second sheet are joined together to form a receiving space of the packaging bag, characterized in that the ratio of the width D to the height H of the first sheet and the ratio of the width D to the height H of the second sheet are both in the range of 1-1.5.
  • This disclosure also provides a packaged washing product comprising the above-described packaging bag, wherein the packaging bag contains granular solids.
  • granular detergent refers to a solid powder or granular detergent, preferably a free-flowing powder or granular detergent, such as a multipurpose detergent or heavy-duty detergent for fabrics, as well as detergent auxiliaries, such as bleaching actives, rinsing aids, additives, or pretreatment products.
  • the packaging bags disclosed herein can be used to package a variety of solid granular detergent products. These packaging bags can hold the following products: cleaning products, disinfectants, dishwashing solutions, laundry detergents, fabric conditioners, fabric dyes, surface protectants, hair care products, food, pharmaceuticals, supplements, automotive supplies, and aviation supplies.
  • Figure 1 shows a schematic diagram of the back structure of a packaging bag according to an exemplary embodiment of the present disclosure, wherein the insert bottom is folded.
  • Figure 2 is a schematic diagram of the front structure of a packaging bag according to an exemplary embodiment of the present disclosure, wherein the insert bottom is folded in half; and
  • Figure 3 is a schematic diagram of the bottom structure of a packaging bag according to an exemplary embodiment of the present disclosure, wherein the insert bottom is unfolded.
  • a packaging bag 10 mainly includes a first sheet 10a and a second sheet 10b.
  • the upper edges of the first sheet 10a and the second sheet 10b are joined together to form an upper receiving space of the packaging bag 10.
  • the joined portion of the edges of the first sheet 10a and the second sheet 10b forms a sealing edge with a width d of 12mm.
  • the ratio of the width D to the height H of the first sheet 10a and the ratio of the width D to the height H of the second sheet 10b are both in the range of 1-1.5.
  • the ratios of the width D to the height H of the first sheet 10a and the ratios of the width D to the height H of the second sheet 10b are both in the range of 1.2-1.5.
  • the above ratio range ensures that when the packaging bag 10 is in an upright position, the granular solids contained inside are generally spread out on the plane where the packaging bag 10 is placed, and the gravity of the granular solids is evenly distributed, so as not to compact or harden the loosely packed granules inside the packaging bag 10.
  • the packaging bag 10 provided according to the exemplary embodiment of this disclosure further includes a bottom insert 10c.
  • the bottom edges 11 of the first sheet 10a and the second sheet 10b are respectively joined to the periphery of the bottom insert 10c.
  • the remaining portion of the edge of the first sheet 10a is joined to the remaining portion of the edge of the second sheet 10b, thereby forming the entire receiving space of the packaging bag 10.
  • the portions where the bottom edges 11 of the first sheet 10a and the second sheet 10b are joined to the periphery of the bottom insert 10c form a sealing edge with a width d of 12 mm.
  • the bottom insert 10c can be folded in half and sandwiched between the first sheet 10a and the second sheet 10b, so that the entire packaging bag 10 forms a flat shape.
  • the insert bottom 10c When the insert bottom 10c is folded in half, the entire packaging bag 10 is emptied of the granular solids, forming a flat shape. When the insert bottom 10c is unfolded, a flat bottom is formed, allowing the packaging bag 10 containing the granular solids to stand stably upright.
  • the first sheet 10a and the second sheet 10b are joined together at least at the first side 13 and the second side 14, and the first sheet 10a, the second sheet 10b, and the insert 10c are joined together at the bottom edge 11.
  • the first sheet 10a, the second sheet 10b, and the insert 10c together form an accommodating space, wherein the insert 10c can be folded in half and sandwiched between the first sheet 10a and the second sheet 10b.
  • the packaging bag 10 is jointly constituted by the first sheet 10a, the second sheet 10b, and the insert 10c.
  • the packaging bag 10 may also be constituted only by the first sheet 10a and the second sheet 10b, i.e., excluding the insert 10c.
  • the width d of the sealing edge of the packaging bag 10 is not limited to 12mm, and the width of the sealing edge d can be between 8mm and 12mm.
  • the first sheet, the second sheet, and the insert of the packaging bag each comprise multiple composite material layers.
  • the first sheet, the second sheet, and the insert each comprise two composite material layers.
  • the outermost layer of the multiple composite material layers is a uniaxial tensile composite material layer, and the density of the innermost layer is lower than the density of the other layers.
  • the middle layer of the multiple composite material layers is a biaxial tensile composite material layer.
  • the first sheet and/or the second sheet and/or the insert of the packaging bag 10 may be formed of at least one flexible film material layer.
  • the first sheet and/or the second sheet and/or the insert of the flexible bag body 10 may be formed of at least one flexible film material.
  • the flexibility coefficient (elastic modulus) of the flexible film material is in the range of 100 MPa (N/ mm2 ) to 1500 MPa (N/ mm2 ), preferably in the range of 400 MPa (N/ mm2 ) to 1100 MPa (N/ mm2 ), and the thickness of the flexible film material is in the range of 20 microns to 250 microns, preferably in the range of 100 microns to 160 microns.
  • the first sheet and/or second sheet and/or insert of the packaging bag may be made of multiple or two composite film layers.
  • the inner layer is in contact with the granular detergent contained in the packaging bag, while the outer layer forms the outermost surface of the packaging bag.
  • the outer layer is preferably polyester, the inner layer is preferably polyethylene, and the middle layer is preferably nylon.
  • the outer layer is preferably uniaxially oriented polyethylene, the inner layer is preferably low-density polyethylene, and the middle layer is preferably biaxially oriented polyethylene.
  • the outer layer is preferably polyester, and the inner layer is preferably polyethylene.
  • the outer layer is preferably nylon
  • the inner layer is preferably polyethylene.
  • the first sheet and/or second sheet and/or insert of the packaging bag may also be made of any suitable flexible film layer and/or composite film layer as needed, and this disclosure is not limiting.
  • first and/or second sheets and/or part, multiple parts, or all of the insert of the packaging bag may be coated or uncoated, treated or untreated, processed or unprocessed in any manner known in the art.
  • the flexible film and/or composite film materials used to manufacture the packaging bags disclosed herein may be formed in any manner known in the art and may be joined together using any kind of joining or sealing method known in the art, including, for example, heat sealing (e.g., conductive sealing, pulse sealing, ultrasonic sealing, etc.), welding, curling, bonding, adhesion, etc., and any combination thereof.
  • the width D of the first sheet 10a and the second sheet 10b of the packaging bag 10 is 350 mm to 420 mm
  • the height H is 240 mm to 300 mm
  • the height h of the folded bottom 10c is 30 mm to 70 mm.
  • the width D of the first sheet 10a and the second sheet 10b is 350mm
  • the height H is 260mm
  • the height h of the insert 10c after being folded is 55mm.
  • the width D of the first sheet 10a and the second sheet 10b is 380mm
  • the height H is 280mm
  • the height h of the insert 10c after being folded is 55mm.
  • the width D of the first sheet 10a and the second sheet 10b is 420mm
  • the height H is 320mm
  • the height h of the insert 10c after being folded is 65mm.
  • the top corner of the packaging bag 10 is provided with a first inclined side 15 that slopes towards the top center line of the packaging bag 10.
  • the packaging bag 10 also includes a handle, which is provided at the first inclined side 15 and the gripping part of the handle is inclined towards the top center line of the packaging bag 10.
  • the handle is rigid and roughly ear-shaped.
  • the handle 30 may include a peripheral portion 31 and a through portion 32 defined by the peripheral portion 31, the through portion 32 penetrating the packaging bag 10.
  • the peripheral portion 31 has at least two finger receiving grooves 33 formed on its inner periphery toward the through portion 32.
  • the handle 30 may be heat-sealed between a first sheet 10a and a second sheet 10b of the packaging bag 10 via the outer periphery of the peripheral portion 31.
  • the handle may also be a through hole formed by cutting/piercing one or more sealed portions of the packaging bag 10 (i.e., a completely open space through which fingers and/or thumbs can be inserted).
  • the top corner of the packaging bag 10 is provided with a second inclined side 16 that slopes toward the top centerline of the packaging bag 10.
  • the packaging bag 10 also includes a spout 20 disposed at the second inclined side 16.
  • the axis of the spout 20 is inclined relative to the top of the packaging bag 10, and the opening of the spout 20 faces away from the bottom of the packaging bag 10.
  • the spout 20 is rigid and has an overall cylindrical shape.
  • the spout 20 is configured to dispense the contents contained in the packaging bag 10 (in an exemplary embodiment, granular laundry detergent) via the spout 20.
  • the top edge 12 of the packaging bag 10 is connected to the first side edge 13 via a first inclined edge 15, and a handle 30 is formed near the first inclined edge 15.
  • the top edge 12 of the packaging bag 10 is connected to the second side edge 14 via a second inclined edge 16, and the mouth portion 20 is attached to the second inclined edge 16.
  • the mouth axis A1 of the mouth portion 20 can be perpendicular to the second inclined edge 16.
  • the rigid nozzle 20 is generally cylindrical, communicates with the internal receiving space of the packaging bag 10, and is configured to dispense granular detergent from the internal receiving space of the packaging bag 10.
  • the diameter of the cylinder is in the range of 20 mm to 50 mm, preferably, the opening diameter of the cylinder is in the range of 20 mm to 30 mm, more preferably 21 mm to 28 mm, and most preferably 22 mm to 26 mm. Testing has shown that rigid nozzles with opening diameters within the above ranges are particularly suitable for dispensing granular detergent. If the nozzle opening diameter is less than 20 mm, for example, 15 mm, the volumetric flow rate for dispensing granular detergent is too slow and may result in insufficient feeding.
  • the length L of the nozzle is in the range of 20 mm to 50 mm, preferably 30 mm to 40 mm, and more preferably 32 mm to 38 mm.
  • the rigid mouthpiece 20 may also include a cap (not shown).
  • the cap removably covers the mouthpiece 20.
  • the cap is removably engaged to the rigid mouthpiece 20 via an internal thread that engages with a corresponding external thread on the periphery of the mouthpiece 20 to close the mouthpiece and prevent accidental leakage of particulate detergent.
  • the spout 20 has a relatively rigid structure and can be made of any suitable rigid material, such as glass, metal, polymer, etc., but preferably of polymer.
  • the spout and/or the cap can be made of the same or different materials.
  • each of them is independently made of a group selected from polypropylene (PP), polyethylene (PE), polycarbonate (PC), polyamide (PA), polyethylene terephthalate (PET), polyvinyl chloride (PVC), polystyrene (PS), and combinations thereof.
  • a packaged washing product comprising the packaging bag described in any of the above embodiments, wherein the packaging bag contains granular solids.
  • the height H1 of the remaining space after the packaging bag is filled with the granular solid is 9cm to 11cm.
  • the granular detergent particles contained in the packaging bag are characterized in that their median weight particle size (Dw50) is between 200 ⁇ m and 1000 ⁇ m, preferably between 250 ⁇ m and 950 ⁇ m, and more preferably between 300 ⁇ m and 850 ⁇ m.
  • the granular detergent particles are also characterized in that their bulk density is between 0.3 g/cm3 and 0.9 g/cm3, preferably between 0.35 g/cm3 and 0.8 g/cm3.
  • the moisture content of the granular detergent is between 2.7% and 3.0%.
  • the packaging bags provided according to the foregoing exemplary embodiments of this disclosure have the advantage that they can be easily stood upright after containing granular solids, and that the granular solids inside remain loose even after prolonged standing, facilitating emptying. Furthermore, the packaging bags are equipped with a spout for dispensing granular solids and components to assist in emptying, so that the granular solids contained within the packaging bags can be discharged and distributed in a controlled and smooth manner.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)

Abstract

一种包装袋（10）和包括该包装袋的带有包装的洗涤用产品，该包装袋包括第一片材（10a）和第二片材（10b），第一片材和第二片材的边缘的至少一部分结合在一起，形成包装袋的容纳空间，第一片材的宽度（D）和高度（H）的比值和第二片材的宽度（D）和高度（H）的比值均在1-1.5的范围内。该带有包装的洗涤用产品的包装袋中容纳有颗粒状固体，从而在长时间竖立后仍然使包装袋内部的颗粒状固体保持疏松，方便倾倒。

Description

包装袋和带有包装袋的洗涤用产品 技术领域
本公开的实施例一般地涉及包装技术领域，并且更具体地，涉及一种包装袋和带有包装袋的洗涤用产品。
背景技术
通常地，诸如洗衣粉之类的颗粒状洗涤剂被填充在防水或抗水柔性膜制成的包装袋中进行销售。最常见的颗粒洗涤剂的包装袋的总体形状为矩形枕状，包装袋由两个矩形片材合并封边而形成。当这些洗涤剂产品在实体商店进行售卖时，由于包装袋的扁平形状，此类产品通常被上下叠放在一起以进行仓储或货架展示，摆放在下面的包装袋内的洗涤剂颗粒将被压实，不再蓬松，这使得洗涤剂颗粒不方便被倾倒出包装袋，降低了消费者的使用舒适度；此外，上下叠放的货架摆放方式不易被消费者在视觉上迅速识别，不方便消费者拿取，不利于销售。在消费者使用颗粒状洗涤剂产品时，包装袋的扁平形状也不方便日常摆放，有时消费者会将包装袋竖立并将其依靠墙面之类的竖直壁板放置，这对于大容量的包装而言，包装袋内的上部的洗涤剂颗粒由于重力作用而将下部的洗涤剂颗粒压实，下部被压实的洗涤剂颗粒不再蓬松，不方便被倾倒出包装袋，降低了消费者的使用舒适度；此外，大容量的包装袋并不能保持稳定地竖立，有时会意外倾倒，在包装袋被打开的情况下，使得里面容纳的颗粒状洗涤剂发生震荡而产生不希望的扬尘。
另一方面，当消费者准备使用颗粒状洗涤剂时，他/她通常将在包装袋的顶角处撕开或切开开口，颗粒状洗涤剂产品可通过该开口倒出。在每次使用之后，此类开口将需要例如用夹子或橡胶带封闭，以防止颗粒状洗涤剂从包装袋中泄漏出来，同时防止湿气/水进入包装袋中而导致颗粒状洗涤剂在内部结块或聚块。然而，通过撕开或切开形成的此类开口的尺寸和形状可能变化非常大，难以控制从此类开口分配出的颗粒状洗涤剂的量和速度。此外，用夹子或橡胶带封闭此类开口仍然可能导致意外泄漏，并且它们可能不会形成有效的防潮/防水屏障，导致洗涤剂受潮板结，不易倾倒出包装袋，长时间如此，还会使得洗涤剂的洗涤效果劣化。
现实生活中，消费者偏爱购买具有大容量包装袋的颗粒状洗涤剂产品。每次使用时，由于大容量包装袋的重量较大，使得消费者在将颗粒状洗涤剂通过该嘴部倒出的过程中无法稳定地保持包装袋，同样难以控制从嘴部分配出的颗粒状洗涤剂的量和速度。
因此，需要一种改进形状的包装袋，使得其在容纳颗粒状固体后能够方便地竖立，在长时间竖立后仍然使其内部的颗粒状固体保持疏松，方便倾倒，从而提高消费者的使用舒适度，同时包装袋上需设置用于分配颗粒状固体的嘴部和辅助倾倒的部件以方便消费者使用洗涤剂。
发明内容
本公开的目的旨在解决现有技术中存在的上述问题和缺陷的至少一个方面。
根据本公开的一个方面，提供一种包装袋，包括第一片材和第二片材，其中，所述第一片材和所述第二片材的边缘的至少一部分结合在一起，形成所述包装袋的容纳空间，其特征在于，所述第一片材的宽度和高度的比值和所述第二片材的宽度和高度的比值均在1-1.5的范围内。
根据本公开的一个示例性实施例，所述第一片材的宽度和高度的比值和所述第二片材的宽度和高度的比值均在1.2-1.5的范围内。
根据本公开的一个示例性实施例，所述第一片材和所述第二片材的边缘的至少一部分结合在一起，形成宽度为8mm至12mm的封边。
根据本公开的一个示例性实施例，所述包装袋还包括插底，所述第一片材的边缘的底边和所述第二片材的边缘的底边分别与所述插底的周缘结合在一起，所述第一片材的边缘的其余部分与所述第二片材的边缘的其余部分结合在一起，从而形成所述包装袋的容纳空间，其中，所述插底能够被对折并夹在所述第一片材和所述第二片材之间，使得整个包装袋形成扁平的形状。
根据本公开的一个示例性实施例，所述第一片材的边缘的底边和所述第二片材的边缘的底边分别与所述插底的周缘结合在一起，形成宽度为8mm至12mm的封边。
根据本公开的一个示例性实施例，所述第一片材、所述第二片材和所述插底均包括多个复合材料层。
根据本公开的一个示例性实施例，所述第一片材、所述第二片材和所述插底均包括两个复合材料层。
根据本公开的一个示例性实施例，所述多个复合材料层中的最外层的材料层为单向拉伸复合材料层，最内层的材料层的密度小于其他层的材料层的密度。
根据本公开的一个示例性实施例，所述多个复合材料层中的中间的材料层为双向拉伸复合材料层。
根据本公开的一个示例性实施例，所述包装袋的所述第一片材和第二片材的宽度为350mm至420mm，高度为240mm至300mm，所述插底被对折后的高度为30mm至70mm。
根据本公开的一个示例性实施例，所述包装袋的顶部的一角设有朝向包装袋的顶部中心线倾斜的第一斜边，所述包装袋还包括提手，所述提手设置在所述第一斜边处且所述提手的握持部朝向包装袋的顶部中心线倾斜。
根据本公开的一个示例性实施例，所述提手为刚性的，形状为耳形。
根据本公开的一个示例性实施例，所述包装袋的顶部的另一角设有朝向包装袋的顶部中心线倾斜的第二斜边，所述包装袋还包括嘴部，所述嘴部设置在所述第二斜边处，所述嘴部的轴线相对于所述包装袋的顶部倾斜且所述嘴部的开口朝向背离所述包装袋的底部方向。
根据本公开的一个示例性实施例，所述嘴部为刚性的，形状为圆筒形，其中圆筒的直径为21mm至28mm。
根据本公开的另一个方面，提供一种带有包装的洗涤用产品，包括根据权利要1-14中任一项所述的包装袋，其特征在于，所述包装袋中容纳有颗粒状固体。
根据本公开的一个示例性实施例，所述包装袋被所述颗粒状的固体填充后的剩余空间的高度为9cm至11cm。
根据本公开的一个示例性实施例，所述颗粒状的固体的中值重量粒度在200μm至1000μm之间；堆积密度在0.3g/cm3至0.9g/cm3之间。
根据本公开的一个示例性实施例，所述颗粒状的固体的中值重量粒度在250μm至950μm之间；堆积密度在0.35g/cm3至0.8g/cm3之间。
根据本公开的一个示例性实施例，所述颗粒状的固体的中值重量粒度在300μm至850μm之间。
根据本公开的前述各个示例性实施例提供的包装袋，其优点是所述包装袋在容纳颗粒状固体后能够方便地竖立，在长时间竖立后仍然使其内部的颗粒状固体保持疏松，方便倾倒，同时包装袋上设有用于分配颗粒状固体的嘴部和辅助倾倒的部件以使得包装袋内容纳的颗粒状固体能够受控地且平滑地排出和分配。
附图说明
通过下文中参照附图对本公开所作的描述，本公开的其它目的和优点将显而易见，并可帮助对本公开有全面的理解。
图1示出根据本公开的一个示例性实施例的包装袋的背面结构示意图，其中插底被折叠。
图2是根据本公开的一个示例性实施例的包装袋的正面结构示意图，其中插底被折叠；以及
图3是根据本公开的一个示例性实施例的包装袋的底面结构示意图，其中插底被展开。
具体实施方式
下面通过实施例，并结合附图，对本公开的技术方案作进一步具体的说明。在说明书中，相同或相似的附图标号指示相同或相似的部件。下述参照附图对本公开实施方式的说明旨在对本公开的总体构思进行解释，而不应当理解为对本公开的一种限制。
另外，在下面的详细描述中，为便于解释，阐述了许多具体的细节以提供对本披露实施例的全面理解。然而明显地，一个或多个实施例在没有这些具体细节的情况下也可以被实施。在其他情况下，公知的结构和装置以图示的方式体现以简化附图。
根据本公开的一个总体技术构思，提供一种包装袋，包括第一片材和第二片材，其中，所述第一片材和所述第二片材的边缘的至少一部分结合在一起，形成所述包装袋的容纳空间，其特征在于，所述第一片材的宽度D和高度H的比值和所述第二片材的宽度D和高度H的比值均在1-1.5的范围内。本公开还提供了一种带有包装的洗涤用产品，包括上述包装袋，所述包装袋中容纳有颗粒状固体。
本文中，术语“颗粒状洗涤剂”是指固体粉末状或颗粒状洗涤剂，优选地自由流动的粉末状或颗粒状洗涤剂，诸如用于织物的多用途洗涤剂或重型洗涤剂，以及洗涤辅剂，诸如漂白活性物质、漂洗助剂、添加剂或预处理产品。
本公开提供的包装袋可用于包装多种固体颗粒状的洗涤用产品。本公开的包装袋能够盛放以下产品：清洁产品、消毒剂、餐具洗涤组合剂、衣物洗涤剂、织物调理剂、织物染料、表面保护剂、头发护理产品、食品、药品、补充剂、汽车用品、航空用品等。
图1示出根据本公开的一个示例性实施例的包装袋的背面结构示意图，其中插底被折叠。图2是根据本公开的一个示例性实施例的包装袋的正面结构示意图，其中插底被对折；以及图3是根据本公开的一个示例性实施例的包装袋的底面结构示意图，其中插底被展开。
如图所示，根据本公开提供的一种包装袋10，主要包括第一片材10a和第二片材10b，其中，所述第一片材10a和所述第二片材10b的上部的边缘相互结合在一起，形成所述包装袋10的上部的容纳空间，其中，所述第一片材10a和所述第二片材10b的边缘的结合在一起的部分形成宽度d为12mm的封边。其中，所述第一片材10a的宽度D和高度H的比值和所述第二片材10b的宽度D和高度H的比值均在1-1.5的范围内。优选地，所述第一片材10a的宽度D和高度H的比值和所述第二片材10b的宽度D和高度H的比值均在1.2-1.5的范围内。上述比值范围确保使得包装袋10在竖立位置时内部容纳的颗粒状固体的整体大致平摊在包装袋10被摆放的平面上，颗粒状固体的重力均匀分散，而不会使包装袋10内的疏松堆放的颗粒被压实而板结。
如图所示，根据本公开的示例实施例提供的包装袋10还包括插底10c，所述第一片材10a的边缘的底边11和所述第二片材10b的边缘的底边11分别与所述插底10c的周缘结合在一起，所述第一片材10a的边缘的其余部分与所述第二片材10b的边缘的其余部分结合在一起，从而形成所述包装袋10的整个的容纳空间，其中，所述第一片材10a的边缘的底边11和所述第二片材10b的边缘的底边11分别与所述插底10c的周缘的结合在一起的部分形成宽度d为12mm的封边。其中，所述插底10c能够被对折并夹在所述第一片材10a和所述第二片材10b之间，使得整个包装袋10形成扁平的形状。
当所述插底10c被对折时，整个包装袋10将颗粒状固体排空，形成扁平的形状。当所述插底10c被展开时，形成平坦的底部，容纳有颗粒状固体的包装袋10能够被稳定地竖立。
具体地，第一片材10a和第二片材10b至少在第一侧边13和第二侧边14处结合在一起，并且第一片材10a、第二片材10b和插底10c在底边11处结合在一起，第一片材10a、第二片材10b和插底10c合围成容纳空间，其中，插底10c能够被对折并夹在第一片材10a和第二片材10b之间。根据本公开示例性实施例，包装袋10由第一片材10a、第二片材10b和插底10c共同构成。在未图示的一些其它实施例中，包装袋10也可以仅由第一片材10a和第二片材10b构成，即不包括插底10c。
在此需要说明的是，根据本公开的示例实施例提供的包装袋10的封边的宽度d并不限于12mm，封边d的宽度在8mm至12mm之间都是可以的。
根据本公开的包装袋的所述第一片材、所述第二片材和所述插底均包括多个复合材料层。具体地，所述第一片材、所述第二片材和所述插底均包括两个复合材料层。所述多个复合材料层中的最外层的材料层为单向拉伸复合材料层，最内层的材料层的密度小于其他层的材料层的密度。其中，所述多个复合材料层中的中间的材料层为双向拉伸复合材料层。
根据本公开，包装袋10的第一片材和/或第二片材和/或插底可由至少一种柔性膜材料层形成，根据本公开，柔性袋体10的第一片材和/或第二片材和/或插底可由至少一种柔性膜材料形成，所述柔性膜材料的柔性系数(弹性模量)在100Mpa(N/mm2)至1500Mpa(N/mm2)的范围内，优选地在400Mpa(N/mm2)至1100Mpa(N/mm2)的范围内，该柔性膜材料的厚度在20micron至250micron的范围内,优选地在100micron至160micron的范围内。
根据本公开，包装袋的第一片材和/或第二片材和/或插底可由多个或两个复合膜层制成。内层与在包装袋中包含的颗粒状洗涤剂接触，而外层形成包装袋的最外表面。举例而言，在一种采用多个复合膜层的实施例中，外层优选地为聚酯，内层优选地为聚乙烯，中间层优选地为尼龙。在另一种采用多个复合膜层的实施例中，外层优选地为单向拉伸聚乙烯，内层优选地为低密度聚乙烯，中间层优选地为双向拉伸聚乙烯材料。在一种采用双层复合膜层的实施例中，外层优选地为聚酯，内层优选地为聚乙烯。在一种采用双层复合膜层的实施例中，外层优选地为尼龙，内层优选地为聚乙烯。当然，在其它实施例中，包装袋的第一片材和/或第二片材和/或插底也可以根据实际需求采用任何适宜的柔性膜层和/或复合膜层制成，本公开在此不做限制。
此外，包装袋的第一片材和/或第二片材和/或插底的一部分、多个部分或全部可以本领域已知的任何方式涂覆或不进行涂覆、处理或不进行处理、加工或不进行加工。用于制造本文所公开的包装袋的柔性膜和/或复合膜材料可以本领域已知的任何方式形成，并可使用本领域已知的任何种类的接合或密封方法接合在一起，包括例如热密封(例如导电密封、脉冲密封、超声密封等)、焊接、卷曲、粘结、粘附等，以及这些中的任一者的组合。
在根据本公开的示例实施例中，所述包装袋10的所述第一片材10a和第二片材10b的宽度D为350mm至420mm，高度H为240mm至300mm，所述插底10c被对折后的高度h为30mm至70mm。
具体地，根据本公开的一个示例实施例，所述第一片材10a和第二片材10b的宽度D为350mm，高度H为260mm，所述插底10c被对折后的高度h为55mm。
具体地，根据本公开的另一个示例实施例，所述第一片材10a和第二片材10b的宽度D为380mm，高度H为280mm，所述插底10c被对折后的高度h为55mm。
具体地，根据本公开的又一个示例实施例，所述第一片材10a和第二片材10b的宽度D为420mm，高度H为320mm，所述插底10c被对折后的高度h为65mm。
如图所示，所述包装袋10的顶部的一角设有朝向包装袋10的顶部中心线倾斜的第一斜边15，所述包装袋10还包括提手，所述提手设置在所述第一斜边15处且所述提手的握持部朝向包装袋10的顶部中心线倾斜。其中，所述提手为刚性的，形状大致为耳形。
具体地，根据本公开实施例，提手30可以包括：周边部31和由周边部31限定的贯穿部32，贯穿部32贯通包装袋10。周边部31朝向贯穿部32的内周边形成有至少两个手指容纳槽33。提手30可以经由周边部31的外周边以热封方式被附接在包装袋10的第一片材10a和第二片材10b之间。在一些可替换实施例中，提手也可以是将包装袋10的一个或多个密封部分切开/刺穿而形成的贯通孔(即，手指和/或拇指可通过其插入的完全开放空间)。
在根据本公开的示例实施例中，所述包装袋10的顶部的另一角设有朝向包装袋10的顶部中心线倾斜的第二斜边16，所述包装袋10还包括嘴部20，所述嘴部20设置在所述第二斜边16处，所述嘴部20的轴线相对于所述包装袋10的顶部倾斜且所述嘴部20的开口朝向背离所述包装袋10的底部方向。所述嘴部20为刚性的，总体形状为圆筒形。嘴部20被构造成将容纳在包装袋10中的内容物(在示例性实施例中为颗粒状衣物洗涤剂)经由嘴部20进行分配。
具体地，在如图1至图3所示的示例性实施例中，包装袋10的顶边12经由第一斜边15连接至第一侧边13，提手30形成在第一斜边15附近。与此同时，包装袋10的顶边12经由第二斜边16连接至第二侧边14，嘴部20附接至第二斜边16，优选地，嘴部20的嘴部轴线A1可以垂直于第二斜边16。
刚性的嘴部20总体为圆筒形，与包装袋10的内部容纳空间连通，并且被构成为从包装袋10的内部容纳空间内分配颗粒状洗涤剂。圆筒形的直径在20mm至50mm的范围内，优选地，圆筒形的开口直径在20mm至30mm、更优选地在21mm至28mm、最优选地在22mm至26mm范围内。经测试发现，开口直径在上述范围内的刚性嘴部尤其适用于分配颗粒状洗涤剂。如果嘴部开口直径低于20mm，例如15mm，则用于分配颗粒状洗涤剂的体积流速太慢并且可能导致给料不足。如果嘴部开口直径大于30mm，例如33mm，则用于分配颗粒状洗涤剂的体积流速太快并且可能导致给料过量。嘴部的长度L在20mm至50mm的范围内、优选地在30mm至40mm、更优选地在32mm至38mm范围内。
根据本公开，刚性的嘴部20还可以包括盖(未图示)。盖可移除地覆盖嘴部20。例如，盖经由内螺纹可移除地接合到刚性嘴部20，该内螺纹与嘴部20外围的对应外螺纹接合，以闭合嘴部并且防止颗粒状洗涤剂的意外泄漏。
与制成包装袋10的第一片材10a和/或第二片材10b和/或插底10c相比，如上文所述的嘴部20具有相对刚性的结构，并且可由任何合适的刚性材料制成，诸如玻璃、金属、聚合物等，但优选地由聚合物制成。具体地，嘴部和/或盖可由相同或不同的材料制成。优选地，它们中的每个独立地由选自由聚丙烯(PP)、聚乙烯(PE)、聚碳酸酯(PC)、聚酰胺(PA)、聚对苯二甲酸乙二醇酯(PET)、聚氯乙烯(PVC)、聚苯乙烯(PS)以及它们的组合组成的组制成。
根据本公开的另一方面，还提供了一种带有包装的洗涤用产品，包括上述任一个实施例中所述的包装袋，其中，所述包装袋中容纳有颗粒状固体。
其中，所述包装袋被所述颗粒状的固体填充后的剩余空间的高度H1为9cm至11cm。
根据本公开，容纳在所述包装袋中的颗粒状洗涤剂的颗粒的特征可在于，中值重量粒度(Dw50)在200μm至1000μm之间，优选地在250μm至950μm之间，更优选地在300μm至850μm之间。颗粒状洗涤剂的颗粒的特征还可在于，堆积密度在0.3g/cm3至0.9g/cm3之间、优选地在0.35g/cm3至0.8g/cm3之间。颗粒状洗涤剂的含水量可在2.7-3.0％。
实验显示，当包装袋的所述第一片材的宽度D和高度H的比值和所述第二片材的宽度D和高度H的比值均在1.2-1.5的范围内时，该包装袋容纳上述颗粒状洗涤剂的蓬松度更高，流动性强，易于倒出；相较而言，当包装袋的所述第一片材的宽度D和高度H的比值和所述第二片材的宽度D和高度H的比值不在此范围内时，在包装袋容纳相同容量的颗粒状洗涤剂的条件下，其中的颗粒状洗涤剂堆积密度更高，结块现象严重。
根据本公开的前述各个示例性实施例提供的包装袋，其优点是所述包装袋在容纳颗粒状固体后能够方便地竖立，在长时间竖立后仍然使其内部的颗粒状固体保持疏松，方便倾倒，同时包装袋上设有用于分配颗粒状固体的嘴部和辅助倾倒的部件以使得包装袋内容纳的颗粒状固体能够受控地且平滑地排出和分配。。
本领域的技术人员可以理解，上面所描述的实施例都是示例性的，并且本领域的技术人员可以对其进行改进，各种实施例中所描述的结构在不发生结构或者原理方面的冲突的情况下可以进行自由组合。
虽然结合附图对本公开进行了说明，但是附图中公开的实施例旨在对本公开优选实施方式进行示例性说明，而不能理解为对本公开的一种限制。
虽然本公开的构思的一些实施例已被显示和说明，本领域普通技术人员将理解，在不背离本总体公开的构思的原则和精神的情况下，可对这些实施例做出改变，本公开的范围以权利要求和它们的等同物限定。
应注意，措词“包括”不排除其它元件或步骤，措词“一”或“一个”不排除多个。另外，权利要求的任何元件标号不应理解为限制本公开的范围。
本文中描述的尺寸和值不应被理解为严格限于所引用的精确数值。相反，除非另有说明，否则每个尺寸旨在表示所列举的值和围绕该值的功能上等效的范围。例如，公开为“8mm”的尺寸旨在表示“约8mm”。

Claims (19)

  1. 一种包装袋，包括第一片材和第二片材，其中，所述第一片材和所述第二片材的边缘的至少一部分结合在一起，形成所述包装袋的容纳空间，其特征在于，所述第一片材的宽度和高度的比值和所述第二片材的宽度和高度的比值均在1-1.5的范围内。
  2. 根据权利要求1所述的包装袋，其特征在于，所述第一片材的宽度和高度的比值和所述第二片材的宽度和高度的比值均在1.2-1.5的范围内。
  3. 根据权利要求1所述的包装袋，其特征在于，所述第一片材和所述第二片材的边缘的至少一部分结合在一起，形成宽度为8mm至12mm的封边。
  4. 根据权利要求3所述的包装袋，其特征在于，还包括插底，所述第一片材的边缘的底边和所述第二片材的边缘的底边分别与所述插底的周缘结合在一起，所述第一片材的边缘的其余部分与所述第二片材的边缘的其余部分结合在一起，从而形成所述包装袋的容纳空间，其中，所述插底能够被对折并夹在所述第一片材和所述第二片材之间，使得整个包装袋形成扁平的形状。
  5. 根据权利要求4所述的包装袋，其特征在于，所述第一片材的边缘的底边和所述第二片材的边缘的底边分别与所述插底的周缘结合在一起，形成宽度为8mm至12mm的封边。
  6. 根据权利要求4-5中任一项所述的包装袋，其特征在于，所述第一片材、所述第二片材和所述插底均包括多个复合材料层。
  7. 根据权利要求4-5中任一项所述的包装袋，其特征在于，所述第一片材、所述第二片材和所述插底均包括两个复合材料层。
  8. 根据权利要求6所述的包装袋，其特征在于，所述多个复合材料层中的最外层的材料层为单向拉伸复合材料层，最内层的材料层的密度小于其他层的材料层的密度。
  9. 根据权利要求8所述的包装袋，其特征在于，所述多个复合材料层中的中间的材料层为双向拉伸复合材料层。
  10. 根据权利要求4-5中任一项所述的包装袋，其特征在于，所述包装袋的所述第一片材和第二片材的宽度为350mm至420mm，高度为240mm至300mm，所述插底被对折后的高度为30mm至70mm。
  11. 根据权利要求10所述的包装袋，其特征在于，所述包装袋的顶部的一角设有朝向包装袋的顶部中心线倾斜的第一斜边，所述包装袋还包括提手，所述提手设置在所述第一斜边处且所述提手的握持部朝向包装袋的顶部中心线倾斜。
  12. 根据权利要求11所述的包装袋，其特征在于，所述提手为刚性的，形状为耳形。
  13. 根据权利要11所述的包装袋，其特征在于，所述包装袋的顶部的另一角设有朝向包装袋的顶部中心线倾斜的第二斜边，所述包装袋还包括嘴部，所述嘴部设置在所述第二斜边处，所述嘴部的轴线相对于所述包装袋的顶部倾斜且所述嘴部的开口朝向背离所述包装袋的底部方向。
  14. 根据权利要13所述的包装袋，其特征在于，所述嘴部为刚性的，形状为圆筒形，其中圆筒的直径为21mm至28mm。
  15. 一种带有包装的洗涤用产品，包括根据权利要1-14中任一项所述的包装袋，其特征在于，所述包装袋中容纳有颗粒状固体。
  16. 根据权利要求15所述的洗涤用产品，其特征在于，所述包装袋被所述颗粒状的固体填充后的剩余空间的高度为9cm至11cm。
  17. 根据权利要求15或16所述的洗涤用产品，其特征在于，所述颗粒状的固体的中值重量粒度在200μm至1000μm之间；堆积密度在0.3g/cm3至0.9g/cm3之间。
  18. 根据权利要求17所述的洗涤用产品，其特征在于，所述颗粒状的固体的中值重量粒度在250μm至950μm之间；堆积密度在0.35g/cm3至0.8g/cm3之间。
  19. 根据权利要求18所述的洗涤用产品，其特征在于，所述颗粒状的固体的中值重量粒度在300μm至850μm之间。
PCT/CN2025/091207 2024-04-26 2025-04-25 包装袋和带有包装袋的洗涤用产品 Pending WO2025223545A1 (zh)

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CN202687003U (zh) * 2012-05-22 2013-01-23 雀巢产品技术援助有限公司 带有把手的包装袋
CN106256711A (zh) * 2015-06-18 2016-12-28 玛尔蒂波奇控股公司 用于混合物组分的包装
JP2017145028A (ja) * 2016-02-17 2017-08-24 株式会社フジシール 粉粒体入包装体および粉粒体用包装袋
US20200198841A1 (en) * 2017-08-31 2020-06-25 Dai Nippon Printing Co., Ltd. Bag
CN111867941A (zh) * 2018-03-28 2020-10-30 凸版印刷株式会社 包装体
CN222409255U (zh) * 2024-04-26 2025-01-28 宝洁公司 包装袋和带有包装袋的洗涤用产品

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CN202687003U (zh) * 2012-05-22 2013-01-23 雀巢产品技术援助有限公司 带有把手的包装袋
CN106256711A (zh) * 2015-06-18 2016-12-28 玛尔蒂波奇控股公司 用于混合物组分的包装
JP2017145028A (ja) * 2016-02-17 2017-08-24 株式会社フジシール 粉粒体入包装体および粉粒体用包装袋
US20200198841A1 (en) * 2017-08-31 2020-06-25 Dai Nippon Printing Co., Ltd. Bag
CN111867941A (zh) * 2018-03-28 2020-10-30 凸版印刷株式会社 包装体
CN222409255U (zh) * 2024-04-26 2025-01-28 宝洁公司 包装袋和带有包装袋的洗涤用产品

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