Multifunctional laundry packaging bag based on color absorbing sheet

Abstract

The application discloses a multifunctional laundry packaging bag based on color-absorbing sheet material. The packaging bag comprises a bag body made of sheet material, the bag body having a containing space for containing washing materials and a sealing opening for sealing the space. The key point is that the sheet material is made of non-water-soluble porous material, such as non-woven fabric, woven fabric or cellulose fiber composite material, the material having water permeability and being capable of effectively absorbing free colorants in water. The bag is pre-provided with washing materials such as laundry condensation beads and washing powder. The application realizes the integrated and synchronous completion of the washing agent feeding and the prevention of color mixing of clothes in the laundry process by packaging the washing materials in the packaging bag with the color-absorbing function, simplifies the laundry steps, and improves the convenience and the color mixing prevention effect.

Description

Technical Field

[0001] This utility model belongs to the field of daily chemical product packaging technology, specifically relating to a multifunctional laundry packaging bag based on color-absorbing sheet material. Background Technology

[0002] In everyday laundry scenarios, the packaging and ease of use of laundry products, as well as the issue of color bleeding when washing clothes together, remain core pain points for users. Currently, most laundry products on the market, such as laundry pods, laundry powder, and laundry detergent, are individually packaged or bottled. While individual small packages allow for controlled dosage per use, the packaging waste after use can easily create an environmental burden, and their function is limited to simply holding the product. Bottled products, on the other hand, present problems such as inconvenient measurement and waste, making them unsuitable for the high-efficiency requirements of automated washing. Meanwhile, color bleeding during mixed washing has long plagued consumers. When dark and light-colored clothes are washed together, free pigments detached from the fabric fibers can easily diffuse into the water, staining the surface of the light-colored clothes and causing damage. Existing solutions mostly rely on separate washing or the use of additional color-absorbing sheets. Separate washing increases water and electricity consumption and washing time, while the use of additional color-absorbing sheets requires users to purchase and apply them separately, increasing usage costs and operational steps, and failing to integrate the washing materials with the anti-color bleeding function.

[0003] Therefore, this utility model proposes a multifunctional laundry packaging bag based on color-absorbing sheet material to at least partially solve the above problems. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, this utility model provides a multifunctional laundry packaging bag based on color-absorbing sheet material. This solves the problems of existing laundry material packaging having a single function, being inconvenient to use, and easily causing waste or pollution. At the same time, preventing color bleeding when washing clothes together requires additional operations and is costly, and the two functions have not been integrated.

[0005] The objective of this utility model can be achieved through the following technical solution: a multifunctional laundry packaging bag based on color-absorbing sheet material, comprising a bag body made of sheet material, the bag body having a holding space for holding laundry materials and a seal for closing the holding space; the sheet material is a non-water-soluble porous material, which is permeable and can absorb free pigments in water; the holding space is pre-filled with laundry materials.

[0006] As a preferred embodiment of this utility model, the porous material is a nonwoven fabric, woven fabric, or cellulose fiber composite material.

[0007] As a preferred embodiment of this invention, the porous material is grafted or coated with a polymer having cationic groups to adsorb anionic dye molecules.

[0008] As a preferred embodiment of this invention, the average pore size of the porous material is between 0.1 micrometers and 100 micrometers.

[0009] As a preferred technical solution of this utility model, the sealing is one of heat-press sealing, ultrasonic welding sealing, or adhesive sealing.

[0010] As a preferred embodiment of this utility model, the sealing opening is a sealing strip structure that can be repeatedly opened and closed.

[0011] As a preferred technical solution of this utility model, the washing material is at least one or a combination of laundry detergent pods, laundry powder, laundry liquid, fragrance beads, fabric softener, fabric disinfectant, or explosive salt.

[0012] As a preferred embodiment of this invention, the washing material is a laundry detergent pod coated with a PVA water-soluble film.

[0013] The beneficial effects of this utility model are as follows: By using a non-water-soluble porous sheet material with water permeability and free pigment adsorption function to make a packaging bag pre-filled with detergent, the quantitative detergent dispensing function and the efficient prevention of color bleeding between clothes are cleverly integrated into one. Users can complete the detergent release and free dye adsorption simultaneously during the washing process without additional operation, which greatly simplifies the washing process and improves convenience. At the same time, the packaging bag has a simple structure and can be sealed once or repeatedly opened and closed as needed. It is compatible with various forms of detergent materials such as laundry pods and laundry powder, making it highly practical and effective in preventing color bleeding, thus effectively solving the problem of color bleeding between mixed clothes. Attached Figure Description

[0014] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the packaging bag structure of this utility model.

[0016] In the image: 100, bag body. Detailed Implementation

[0017] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0018] Example 1 Please see Figure 1This embodiment discloses a multifunctional laundry packaging bag based on color-absorbing sheet material. The core structure of the packaging bag is a bag body 100. The bag body 100 is made of a specific sheet material through cutting and sealing processes, and its interior defines a space for containing laundry materials, and is provided with a seal for closing the space. The key innovation of this utility model is that the sheet material constituting the bag body 100 is itself a functional material, integrating multiple functions such as packaging, protection, and color absorption, thereby fundamentally changing the traditional packaging and usage mode of laundry products.

[0019] Specifically, the sheet material is a water-insoluble porous material. Water insolubility is a fundamental prerequisite for maintaining its structural integrity in aquatic washing environments, ensuring that it will not dissolve, break, or degrade into debris during the entire washing, rinsing, and dehydration process, thus avoiding secondary pollution to clothes and the washing machine. Simultaneously, the material exhibits significant water permeability; its porous structure allows water flow and small molecules dissolved in water (such as detergent active ingredients, free pigment molecules, stain molecules, etc.) to freely permeate the wall of the bag 100. This selective permeability is the basis for achieving its multifunctional synergistic effect.

[0020] In this embodiment, the porous material is preferably a nonwoven fabric. Nonwoven fabric, also known as non-woven textile, is made by arranging short or long textile fibers in a directional or random manner to form a web structure, and then reinforcing it using mechanical, thermal bonding, or chemical methods. The advantages of choosing nonwoven fabric lie in its flexible production process, relatively low cost, and ease of functional modification. For example, highly hydrophobic fibers such as polypropylene or polyethylene terephthalate can be used as the base material. By adjusting the fiber fineness, web weight, and reinforcement process, its physical strength, pore size distribution, and water permeability can be precisely controlled.

[0021] One of the core functions of this sheet material is to adsorb free pigments in water. During the washing of mixed-color clothing, loose dyes can detach from dark or brightly colored garments, dispersing into the washing water as free pigment molecules. These pigments easily redeposit on the surface of lighter-colored clothing, causing color bleeding. The bag body 100 material of this invention is designed as a highly efficient pigment adsorbent. Its adsorption mechanism can be physical adsorption, utilizing the large specific surface area of ​​the nonwoven fabric to capture pigment molecules on the fiber surface through van der Waals forces. To achieve more efficient and selective adsorption, a chemical adsorption mechanism is preferred. Most dyes used on natural fibers such as cotton and linen dissociate into anionic states in water. Therefore, in this preferred embodiment, the fibers of the nonwoven fabric are loaded with polymers having cationic groups through grafting or coating. For example, quaternary ammonium salt polymers, such as polydiallyldimethylammonium chloride or chitosan derivatives, can be introduced during the nonwoven fabric production process or finishing stage. These polymer chains carry a large number of positive charges (cationic groups), which can efficiently capture and firmly lock anionic dye molecules in water through strong electrostatic attraction, thereby preventing color bleeding from the source.

[0022] To balance water permeability, pigment adsorption efficiency, and barrier properties against internal detergent materials, the average pore size of the porous material is precisely controlled between 0.1 micrometers and 100 micrometers. The lower pore size limit ensures that even if the contents contain fine particulate materials such as laundry detergent, they will not easily leak out from the pores in a dry state, maintaining the integrity of the packaging. The upper pore size limit ensures that during washing, water can flow in and out of the bag 100 at a sufficiently high throughput, ensuring that the internal detergent materials can quickly and fully contact and dissolve in the water, while providing an unobstructed channel for free pigment molecules to contact and be adsorbed by the fibers of the bag 100. This pore size range is the result of extensive experimental optimization, achieving effective load-bearing capacity for materials of different forms and permeability to water and pigment molecules.

[0023] In this embodiment, the bag 100 contains pre-filled detergent material, combining the quantitative packaging of the detergent with the anti-color-bleeding function. Users no longer need to separately tear open the detergent packaging, pour out the detergent, or add an extra color-absorbing sheet when washing clothes. They simply need to take one of the bags from the large package and place it directly into the washing machine drum. This greatly simplifies pre-wash preparation and improves ease of use. The detergent material can be at least one of laundry pods, laundry powder, laundry liquid, fragrance beads, fabric softener, fabric disinfectant, or exploding salt (sodium percarbonate, an oxygen-based bleach), or any combination thereof. This invention is compatible with almost all mainstream laundry product forms on the market, meeting diverse consumer washing needs.

[0024] Example 2 This embodiment, based on Embodiment 1, further defines and explains the material of the bag body 100 and the specific form of the internal washing material, in order to demonstrate the unique beneficial effects brought about by their synergistic effect.

[0025] In this embodiment, the porous material is specifically a woven fabric or a cellulose fiber composite material. Woven fabrics are made of warp and weft yarns interwoven in a certain pattern, and have the advantages of structural stability, resistance to deformation, and high mechanical strength, making them particularly suitable for washing environments that require withstanding large water flow impacts and clothing compression. Cellulose fiber composite materials, such as spunlace nonwoven fabrics made of wood pulp fibers and synthetic fibers, combine the excellent hydrophilicity and biodegradability of cellulose materials with the strength of synthetic fibers, making them an environmentally friendly and efficient choice.

[0026] In this embodiment, the pre-placed washing material within the containing space is specifically laundry pods encapsulated by a PVA (polyvinyl alcohol) water-soluble film. Laundry pods, as a highly concentrated, pre-packaged washing product, are popular with consumers, but their use also presents some challenges. The packaging design of this invention perfectly addresses these challenges.

[0027] First, it solves the problem of incomplete dissolution of the outer film of laundry detergent pods, leading to residue. During normal use, if laundry detergent pods come into contact with clothing due to insufficient water or lack of sufficient rolling, the PVA outer film may be rapidly wetted in certain areas and then adhere tightly to the clothing surface due to pressure, forming a gel-like substance. Because subsequent water flow has difficulty penetrating to the adhesion interface, the PVA film cannot completely dissolve, leaving a sticky residue on the clothing. However, by placing the laundry detergent pods in the bag 100 of this invention, the bag 100 acts as a physical barrier and buffer space, ensuring that the laundry detergent pods do not directly adhere tightly to the clothing during the initial washing stage. Water flows through the wall of the bag 100, slowly and evenly wetting the PVA outer film. Simultaneously, the rotation of the washing machine drum causes the bag 100 to tumble freely in the water, providing the pods with sufficient space and continuous water flow within the bag, thus achieving phased and complete dissolution. The pore size and hydrophilicity of the material surface of the bag 100 are specially configured to allow water flow and pigment molecules to pass freely during the washing process, but to effectively slow down the rate at which the outer membrane of the laundry pod comes into direct contact with a large amount of water, thereby achieving this controlled, phased ideal dissolution mode.

[0028] Secondly, it improves user experience and storage convenience. The PVA outer film of laundry detergent pods tends to become sticky in humid environments, resulting in a sticky and unpleasant feel when handled by hand. The bag 100 of this invention is made of a non-water-soluble sheet material, keeping its outer surface dry at all times. Users do not need to directly contact the pods themselves, resulting in a better experience. Furthermore, for large-capacity tub or bagged laundry detergent pods, if the storage environment has high humidity or if used improperly (such as with wet hands), the pods are prone to sticking together, making them difficult to separate, causing inconvenience and waste. This invention, by individually packaging each pod or each usage amount in an absorbent bag, significantly reduces the sticking problem during storage and use.

[0029] Third, it significantly improves product safety, especially preventing accidental ingestion by children or pets. Laundry detergent pods are brightly colored and candy-like, making them highly attractive to children and pets, posing a high risk of accidental ingestion and a major safety hazard in the home. The bag 100 of this invention provides dual safety protection. First, the bag 100 material itself has high physical strength. Second, the bag 100 is sealed using a robust sealing method. In this embodiment, the sealing is preferably achieved through heat-pressing or ultrasonic welding. These two sealing methods connect the molten material itself, resulting in a strong and airtight seal. Through design and testing, the physical strength of the bag 100 material and the bonding strength of the seal are designed to withstand a tensile force of at least 50 Newtons without breaking. This strength far exceeds the tearing ability of an ordinary child, thus forming an effective physical barrier and greatly reducing the risk of children or pets accidentally coming into contact with and ingesting the high concentration of detergent inside.

[0030] Example 3 This embodiment mainly elaborates on the sealing structure and application scenarios of the bag 100.

[0031] Examples 1 and 2 mention one-time sealing methods such as heat sealing and ultrasonic welding sealing. These methods are suitable for large-scale pre-packaged single-use products on the production line. During production, a fixed amount of detergent is filled into bags made of sheet material, and then quickly and securely sealed using automated equipment to form an independent finished product unit. Consumers use the product directly after purchase, and after use, the entire bag is disposed of with the washing wastewater or discarded as garbage.

[0032] As an alternative technical solution, the sealing can also be achieved using adhesive sealing. In this method, a strong adhesive that is insensitive to water and harmless to humans and the environment is applied to the inside of the bag opening and sealed by compression. This method requires relatively low equipment investment and offers high flexibility.

[0033] Furthermore, this utility model also encompasses a reusable design. In this design, the seal is a reusable sealing strip structure. This structure is similar to a common self-sealing bag, achieving sealing and opening through two interlocking convex and concave plastic strips. The bag 100 with this sealing design can function as a multi-functional laundry tool. Users can purchase an empty bag, fill it with laundry detergent, liquid detergent, or other cleaning agents as needed, and then place it in the washing machine. After washing, remove the bag 100, pour out any remaining non-water-soluble substances, clean it, and dry it for reuse. In this mode, the bag 100 primarily functions to prevent color bleeding and aid in dissolution. This design meets the needs of consumers who wish to freely mix and match detergents and seek environmental protection and cost-effectiveness.

[0034] Another beneficial effect of this invention is its excellent support for quick wash mode. Modern washing machines generally have 15-minute or 30-minute quick wash programs for washing small amounts of lightly soiled clothes to save time, water, and electricity. In such a short washing time, the ability of the detergent to dissolve quickly and completely and to function effectively is crucial. As mentioned earlier, the bag design of this invention ensures that materials such as laundry pods dissolve efficiently under controlled conditions, avoiding compromised washing results due to poor dissolution. At the same time, its integrated feature perfectly aligns with the efficient and convenient concept of quick wash mode. Users only need one step to complete a high-quality wash of mixed-color clothes in a short time, which undoubtedly enhances the practical value of quick wash mode and consumer satisfaction.

[0035] In summary, this utility model innovatively designs a pre-filled detergent bag using a non-water-soluble porous sheet with color-absorbing properties. It cleverly integrates multiple functions, including quantitative detergent dispensing, safety protection, convenient use, and effective prevention of color bleeding in clothing. Users can simultaneously release detergent and absorb free dyes during the washing process without any additional operation, greatly simplifying the washing procedure and solving several pain points in traditional washing methods. The packaging bag has a simple structure and can be sealed once or repeatedly opened and closed as needed. It is compatible with various forms of detergents such as laundry pods and laundry powder, offering strong practicality, significant color-prevention, and effectively improving product safety and user experience, thus possessing high market application value.

[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A multifunctional laundry packaging bag based on color-absorbing sheet material, characterized in that, The bag includes a bag body made of sheet material, the bag body having a receiving space for containing washing materials and a seal for closing the receiving space; the sheet material is a non-water-soluble porous material that is permeable to water and can adsorb free pigments in water; the receiving space is pre-filled with washing materials.

2. A multi-functional laundry packaging bag based on color absorbing sheet material according to claim 1, characterized in that, The porous material is a nonwoven fabric, woven fabric, or cellulose fiber composite material.

3. A multi-functional laundry packaging bag based on color absorbing sheet material according to claim 2, characterized in that, The porous material is grafted or coated with a polymer having cationic groups onto its fibers for adsorbing anionic dye molecules.

4. A multi-functional laundry packaging bag based on color absorbing sheet material according to claim 1, characterized in that, The average pore size of the porous material is between 0.1 micrometers and 100 micrometers.

5. A multi-functional laundry packaging bag based on color absorbing sheet material according to claim 1, characterized in that, The sealing is one of the following: heat-press sealing, ultrasonic welding sealing, or adhesive sealing.

6. A multi-functional laundry packaging bag based on color absorbing sheet material according to claim 1, characterized in that, The seal is a re-openable and re-closable sealing strip structure.

7. A multi-functional laundry packaging bag based on color absorbing sheet material according to claim 1, characterized in that, The washing material is at least one or a combination of laundry detergent pods, laundry powder, laundry liquid, fragrance beads, fabric softener, laundry disinfectant, or explosive salt.

8. A multi-functional laundry packaging bag based on color absorbing sheet material according to claim 7, characterized in that, The washing material is laundry detergent pods coated with a PVA water-soluble film.

Images