Recyclable laundry detergent bag with nozzle

Abstract

The utility model discloses a recoverable laundry detergent bag with a nozzle, which comprises bag pieces, the bag pieces are matched together to form a bag body, a bag nozzle is arranged at a bag opening of the bag body and is made of PE (polyethylene) materials, each bag piece comprises a casting PE film, a two-way stretching PE film and a longitudinal stretching PE film, and the two-way stretching PE film is arranged on the bag opening of the bag body. The longitudinal stretching PE film and the casting PE film are arranged on the two sides of the two-way stretching PE film respectively, the longitudinal stretching PE film is located on the outer side of the bag body, and the casting PE film is located on the inner side of the bag body. The laundry detergent bag has the advantages that the bag piece and the bag mouth are both made of PE materials, and the whole laundry detergent bag can directly recycle and reconstruct PE particles.

Description

Technical Field

[0001] The utility model relates to the field of liquid packaging materials, in particular to a recyclable nozzle-added laundry detergent bag. Background Art

[0002] A laundry detergent bag is a commonly used liquid packaging bag at present. The structure of a commonly used laundry detergent bag is disclosed in the patent publication document CN206827216U. The structure of this laundry detergent bag includes a bag piece and a bag nozzle. The bag nozzle is a bag nozzle made of PE material, and the bag piece is a composite film of PET, ONY, and PE. Therefore, in this laundry detergent bag, since the bag nozzle is a bag nozzle made of PE material and the bag piece is a composite film formed by the composite of PET (polyethylene terephthalate), ONY (nylon), and PE (polyethylene), only the bag nozzle can be recycled and remade into PE particles when this laundry detergent bag is recycled and granulated, while the bag piece cannot be recycled and granulated again because it is composed of the composite of PET, ONY, and PE. Summary of the Utility Model

[0003] In view of the above problems, the utility model provides a recyclable nozzle-added laundry detergent bag. In this laundry detergent bag, both the bag piece and the bag nozzle are made of PE material, and the whole laundry detergent bag can be directly recycled and remade into PE particles.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A recyclable nozzle-added laundry detergent bag includes a bag piece. The bag pieces are combined together to form a bag body. A bag nozzle is arranged at the bag mouth of the bag body. The bag nozzle is a bag nozzle made of PE material. The bag piece includes a cast PE film, a biaxially oriented PE film, and a longitudinally oriented PE film. The longitudinally oriented PE film and the cast PE film are respectively arranged on both sides of the biaxially oriented PE film. The longitudinally oriented PE film is located outside the bag body, and the cast PE film is located inside the bag body.

[0006] Therefore, in this laundry detergent bag, the bag piece is composed of a composite of a cast PE film, a biaxially oriented PE film, and a longitudinally oriented PE film, and the bag nozzle is a bag nozzle made of PE material. Therefore, the whole bag is made of PE material, so the whole bag can be completely recycled and granulated, the whole bag is completely recyclable, and the whole bag can be directly recycled and remade into PE particles. When preparing the bag body with this bag piece, a part of the cast PE film of the bag piece is bonded together to form the bag body. After the bag body is formed, the cast PE film is located inside the bag body, and the longitudinally oriented PE film is located outside the bag body.

[0007] In summary, both the bag piece and the bag nozzle of this laundry detergent bag are made of PE material, and the whole laundry detergent bag can be directly recycled and remade into PE particles.

[0008] Optionally, the thickness of the longitudinally stretched PE film is 40 μm, the thickness of the cast PE film is 140 μm, and the thickness of the biaxially stretched PE film is 25 μm.

[0009] In the above solution, the thickness of the longitudinally stretched PE film is 40 μm, the thickness of the cast PE film is 140 μm, and the thickness of the biaxially stretched PE film is 25 μm. Therefore, the thickness of the entire bag piece can be ensured to be not less than 205 μm, so that the entire film can have good stiffness.

[0010] Optionally, it further includes a first polyurethane adhesive layer and a second polyurethane adhesive layer. The first polyurethane adhesive layer is arranged between the longitudinally stretched PE film and the biaxially stretched PE film, and the second polyurethane adhesive layer is arranged between the cast PE film and the biaxially stretched PE film. The thickness of the first polyurethane adhesive layer is 3 μm, and the thickness of the second polyurethane adhesive layer is 3 μm.

[0011] In this kind of bag piece, a first polyurethane adhesive layer is arranged between the longitudinally stretched PE film and the biaxially stretched PE film, and a second polyurethane adhesive layer is arranged between the cast PE film and the biaxially stretched PE film. Setting the first polyurethane adhesive layer and the second polyurethane adhesive layer can increase the composite strength between the longitudinally stretched PE film, the biaxially stretched PE film and the cast PE film. There is good composite strength between the films in the whole bag piece, and the phenomenon of delamination and separation between the films will not occur. At the same time, in order not to affect the recycling and granulation of the bag piece, the thicknesses of the first polyurethane adhesive layer and the second polyurethane adhesive layer are both controlled at 3 μm, ensuring that the addition amount of polyurethane relative to the amount of PE can be ignored, so as not to affect the recycling of PE for granulation again.

[0012] Optionally, it further includes an ink printing layer. The ink printing layer is located between the longitudinally stretched PE film and the biaxially stretched PE film, and the thickness of the ink printing layer is 16 μm.

[0013] The ink printing layer is a coating formed after printing information on the longitudinally stretched PE film with ink. In order to avoid excessive ink affecting the subsequent recycling and granulation of the whole bag, the thickness of the ink printing layer is controlled at 16 μm.

[0014] Optionally, the ink printing layer is arranged on the corona-treated surface of the longitudinally stretched PE film.

[0015] Setting the ink printing layer on the corona-treated surface of the biaxially stretched PE film can improve the stability of the ink printing layer.

[0016] The beneficial effect of the present utility model is that both the bag piece and the bag mouth are made of PE material, and the entire laundry detergent bag can be directly recycled and granulated into PE particles. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the structure of a recyclable laundry detergent bag with a spout;

[0018] Figure 2 It is a schematic diagram of the structure of the bag.

[0019] The reference numerals in the figure are: 1. bag sheet; 101. longitudinally stretched PE film; 102. ink printing layer; 103. first polyurethane adhesive layer; 104. biaxially stretched PE film; 105. second polyurethane adhesive layer; 106. cast PE film; 2. bag mouth. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0022] As attached Figure 1 As shown, a recyclable laundry detergent bag with a spout includes a bag sheet 1 (structure as shown in the attached Figure 2 As shown in the figure, the bag pieces 1 are matched together to form a bag body, a bag mouth 2 is arranged at the bag mouth of the bag body, the bag mouth 2 is a bag mouth 2 made of PE material, the bag piece 1 includes a cast PE film 106, a biaxially stretched PE film 104 and a longitudinally stretched PE film 101, the longitudinally stretched PE film 101 and the cast PE film 106 are respectively arranged on both sides of the biaxially stretched PE film 104, the longitudinally stretched PE film 101 is located on the outside of the bag body, and the cast PE film 106 is located on the inside of the bag body.

[0023] Therefore, in this laundry detergent bag, the bag sheet 1 is made of a composite of a cast PE film 106, a biaxially stretched PE film 104 and a longitudinally stretched PE film 101, and the bag mouth 2 is made of a PE material, so the entire bag is made of PE material, so the entire bag can be completely recycled and granulated, the entire bag is completely recyclable, and the entire bag can be directly recycled and regenerated into PE particles. When preparing the bag body of this bag sheet 1, a part of the cast PE film 106 of the bag sheet 1 is bonded together to form the bag body. After the bag body is formed, the cast PE film 106 is located in the bag body, and the longitudinally stretched PE film 101 is located outside the bag body.

[0024] In summary, the bag sheet 1 and the bag mouth 2 of the laundry detergent bag are both made of PE material, and the entire laundry detergent bag can be directly recycled into PE particles.

[0025] As attachedFigure 1 and the attached Figure 2 As shown, the thickness of the longitudinally stretched PE film 101 is 40 um, the thickness of the cast PE film 106 is 140 um, and the thickness of the biaxially stretched PE film 104 is 25 um.

[0026] In the above solution, the thickness of the longitudinally stretched PE film 101 is 40 um, the thickness of the cast PE film 106 is 140 um, and the thickness of the biaxially stretched PE film 104 is 25 um. Therefore, the thickness of the entire bag piece 1 can be ensured to be not less than 205 um, so that the entire film can have good stiffness.

[0027] As attached Figure 1 and the attached Figure 2 As shown, it also includes a first polyurethane adhesive layer 103 and a second polyurethane adhesive layer 105. The first polyurethane adhesive layer 103 is disposed between the longitudinally stretched PE film 101 and the biaxially stretched PE film 104, and the second polyurethane adhesive layer 105 is disposed between the cast PE film 106 and the biaxially stretched PE film 104. The thickness of the first polyurethane adhesive layer 103 is 3 um, and the thickness of the second polyurethane adhesive layer 105 is 3 um.

[0028] In this kind of bag piece 1, a first polyurethane adhesive layer 103 is disposed between the longitudinally stretched PE film 101 and the biaxially stretched PE film 104, and a second polyurethane adhesive layer 105 is disposed between the cast PE film 106 and the biaxially stretched PE film 104. Setting the first polyurethane adhesive layer 103 and the second polyurethane adhesive layer 105 can increase the composite strength between the longitudinally stretched PE film 101, the biaxially stretched PE film 104, and the cast PE film 106. There is good composite strength between the films in the entire bag piece 1, and the films will not be separated or delaminated. At the same time, in order not to affect the recycling and granulation of the bag piece 1, the thicknesses of both the first polyurethane adhesive layer 103 and the second polyurethane adhesive layer 105 are controlled at 3 um to ensure that the amount of polyurethane added relative to the amount of PE can be negligible, so as not to affect the recycling of PE for granulation again.

[0029] As attached Figure 1 and the attached Figure 2 As shown, it also includes an ink printing layer 102. The ink printing layer 102 is located between the longitudinally stretched PE film 101 and the biaxially stretched PE film 104, and the thickness of the ink printing layer 102 is 16 um.

[0030] The ink printing layer 102 is a coating formed after printing information on the longitudinally stretched PE film 101 with ink. In order to avoid excessive ink affecting the subsequent recycling and granulation of the entire bag, the thickness of the ink printing layer 102 is controlled at 16 um.

[0031] As attached Figure 1 and the attachedFigure 2 As shown, the ink printing layer 102 is disposed on the corona surface of the longitudinally stretched PE film 101.

[0032] Disposing the ink printing layer 102 on the corona surface of the biaxially stretched PE film 104 can improve the stability of the ink printing layer 102.

[0033] For specific reference, see the appendix Figure 1 As shown, the bag mouth 2 is provided at the isosceles right-angled cut corner at the top of the bag body, which facilitates pouring out the liquid in the bag body.

[0034] The above-described embodiments only represent some embodiments of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention. It should be noted that for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A recyclable spouted liquid laundry detergent bag, comprising bag pieces that are assembled together to form a bag body, and a spout is provided at the bag opening of the bag body, characterized in that, The bag mouth is a bag mouth made of PE material. The bag piece includes a cast PE film, a biaxially oriented PE film, and a longitudinally stretched PE film. The longitudinally stretched PE film and the cast PE film are respectively arranged on both sides of the biaxially oriented PE film. The longitudinally stretched PE film is located on the outer side of the bag body, and the cast PE film is located on the inner side of the bag body.

2. The recyclable spouted liquid laundry detergent bag according to claim 1, wherein, The thickness of the longitudinally stretched PE film is 40um, the thickness of the cast PE film is 140um, and the thickness of the biaxially oriented PE film is 25um.

3. The recyclable spouted liquid laundry detergent bag according to claim 2, wherein, It further includes a first polyurethane adhesive layer and a second polyurethane adhesive layer. The first polyurethane adhesive layer is arranged between the longitudinally stretched PE film and the biaxially oriented PE film. The second polyurethane adhesive layer is arranged between the cast PE film and the biaxially oriented PE film. The thickness of the first polyurethane adhesive layer is 3um, and the thickness of the second polyurethane adhesive layer is 3um.

4. The recyclable spouted liquid laundry detergent bag according to claim 2, wherein, It further includes an ink printing layer. The ink printing layer is located between the longitudinally stretched PE film and the biaxially oriented PE film. The thickness of the ink printing layer is 16um.

5. A recyclable spouted liquid laundry detergent bag according to claim 4, wherein, The ink printing layer is arranged on the corona surface of the longitudinally stretched PE film.

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