Fragrance-keeping waterproof lining paper for cigarette case

Abstract

The utility model discloses fragrance-keeping waterproof lining paper for a cigarette case, and belongs to the field of cigarette case lining paper. The fragrance-keeping waterproof lining paper for the cigarette case comprises a body paper layer and a fragrance-keeping layer, an aluminum foil layer and a moisture absorption layer are arranged on the sides, deviating from each other, of the body paper layer and the fragrance-keeping layer respectively, the body paper layer and the fragrance-keeping layer are bonded through a first bonding layer, the body paper layer and the aluminum foil layer are bonded through a second bonding layer, and the moisture absorption layer is arranged on the side, deviating from each other, of the body paper layer. The fragrance keeping layer and the moisture absorption layer are bonded through a third bonding layer; according to the utility model, the first bonding layer and the third bonding layer are arranged, so that the dried glue solution layer has excellent flexibility, the flexibility and the bending fatigue resistance after bonding are improved, and the whole lining paper can be conveniently folded subsequently; and the second bonding layer can adapt to bonding of base materials with different thermal expansion coefficients and can be better combined with metal with active atoms on the surface to form a soft and hard transition layer, so that the bonding effect is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette box lining paper, in particular to a fragrance-preserving and waterproof lining paper for cigarette boxes. Background Art

[0002] Liner paper is the inner packaging paper of cigarette boxes. It is used to wrap cigarettes and is made of thin aluminum paper. Cigarette liner paper plays a certain role in moisture-proofing and aroma preservation for cigarettes, and can effectively prevent cigarettes from getting damp and losing their aroma. The liner paper needs to be soft and not easy to be damaged. At the same time, it needs to have a certain stiffness to effectively support the outer packaging.

[0003] The publication number is "CN212533534U", and the cigarette box lining paper includes a first aluminum layer, a first water-based adhesive layer, a base paper layer, a second water-based adhesive layer, and a second aluminum layer from the outside to the inside. The cigarette box lining paper described in the present application can effectively isolate the lining paper layer from absorbing moisture and aroma substances in cigarettes, and can minimize the effect of glue on the smoking quality, thereby maintaining aroma and moisture, and has a particularly significant effect on improving the quality of high-end cigarettes and external-flavor cigarettes.

[0004] The above existing patents still have the following shortcomings. First, the flexibility of the water-based adhesive layer will decrease after drying, and the inner lining paper needs to be folded and loaded into the cigarette box after production. When folding, the inner lining paper may crack or have poor bending effect due to poor overall flexibility, thereby affecting the overall production quality of the cigarette box. Therefore, a fragrance-preserving and waterproof inner lining paper for cigarette boxes is proposed. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that the flexibility of the adhesive glue decreases after drying, causing the lining paper to crack or have a poor bending effect when folded, and proposes a fragrance-preserving and waterproof lining paper for a cigarette box.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A fragrance-preserving and waterproof lining paper for a cigarette box comprises a base paper layer and a fragrance-preserving layer bonded thereto, wherein an aluminum foil layer and a moisture-absorbing layer are respectively arranged on the sides of the base paper layer and the fragrance-preserving layer facing away from each other, the base paper layer and the fragrance-preserving layer are bonded to each other via a first bonding layer, the base paper layer and the aluminum foil layer are bonded to each other via a second bonding layer, and the fragrance-preserving layer and the moisture-absorbing layer are bonded to each other via a third bonding layer.

[0008] In order to improve the bonding effect, preferably, the first bonding layer and the third bonding layer are both made of polyurethane glue with a gram weight of 0.2-0.8 g / m 2 .

[0009] Furthermore, the second adhesive layer is made of chloroprene rubber glue with a gram weight of 0.3-1g / m 2 .

[0010] In order to improve the waterproof effect, preferably, the side of the aluminum foil layer away from the base paper layer is coated with a waterproof coating, and the thickness of the aluminum foil layer is 10-15 μm.

[0011] Preferably, the weight of the fragrance-retaining layer is 4-6 g / m 2 .

[0012] In order to improve the drying property, preferably, a side of the hygroscopic layer away from the fragrance-preserving layer is coated with a hygroscopic coating, and the thickness of the hygroscopic layer is 3-4 μm.

[0013] In order to improve the friction force, preferably, the side of the aluminum foil layer away from the base paper layer is electroplated with anti-slip corrugations.

[0014] Compared with the prior art, the utility model provides a fragrance-preserving and waterproof lining paper for cigarette boxes, which has the following beneficial effects:

[0015] 1. The aroma-preserving and waterproof lining paper for cigarette boxes has excellent flexibility after drying due to the arrangement of the first adhesive layer and the third adhesive layer, which improves the flexibility and bending fatigue resistance of the material after bonding, and can facilitate the subsequent folding of the entire lining paper; and the second adhesive layer can adapt to the bonding of substrates with different thermal expansion coefficients, and can better combine with metals containing active atoms on the surface to form a soft and hard transition layer, which effectively improves the bonding effect.

[0016] 2. By coating the aluminum foil layer with a waterproof coating, the intrusion of external water vapor into the cigarette box can be effectively avoided, thereby improving the protective effect on the cigarettes.

[0017] 3. By setting the hygroscopic coating on the hygroscopic layer, the water vapor entering the cigarette box after opening can be absorbed, ensuring the dryness of the cigarette box, preventing the cigarettes from getting damp and becoming moldy or changing in flavor, and further improving the protection effect of the cigarettes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall main structure of a fragrance-preserving and waterproof lining paper for a cigarette box proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of a fragrance-preserving and waterproof lining paper for a cigarette box proposed by the utility model from a side view;

[0020] Figure 3 The utility model is a schematic diagram of the cross-sectional structure of a fragrance-preserving and waterproof lining paper for a cigarette box.

[0021] In the figure: 1. base paper layer; 2. aroma-preserving layer; 3. aluminum foil layer; 4. moisture-absorbing layer; 5. first adhesive layer; 6. second adhesive layer; 7. third adhesive layer. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] Example:

[0025] Reference Figure 1-Figure 3 A waterproof and aroma-retaining lining paper for cigarette boxes, comprising a base paper layer 1 and an aroma-retaining layer 2 bonded thereto, wherein an aluminum foil layer 3 and a moisture-absorbing layer 4 are respectively arranged on the sides of the base paper layer 1 and the aroma-retaining layer 2 facing away from each other, and the gram weight of the aroma-retaining layer 2 is 4-6 g / m 2 , the normal weight is 4.8g / m 2 The base paper layer 1 and the aroma-preserving layer 2 are bonded to each other through the first adhesive layer 5; the base paper layer 1 and the aluminum foil layer 3 are bonded to each other through the second adhesive layer 6; the aroma-preserving layer 2 and the moisture-absorbing layer 4 are bonded to each other through the third adhesive layer 7. The base paper layer 1, the aroma-preserving layer 2, the aluminum foil layer 3 and the moisture-absorbing layer 4 are bonded and fixed by using the first adhesive layer 5, the second adhesive layer 6 and the third adhesive layer 7, thereby producing an inner lining paper with aroma-preserving, waterproof and moisture-absorbing effects, thereby improving the use effect of the inner lining paper.

[0026] The first adhesive layer 5 and the third adhesive layer 7 are both made of polyurethane glue with a gram weight of 0.2-0.8 g / m 2 , the normal weight is 0.6g / m 2, a nylon film is arranged in the aroma-preserving layer 2, which is used to seal and preserve the aroma, so as to better maintain the original aroma of the cigarette, and silica gel particles are arranged in the moisture-absorbing layer 4, which are used to absorb water and dry, so as to reduce the invasion of moisture on the cigarette; by bonding with polyurethane glue, firstly, there is no corrosion between the base paper layer 1 and the aroma-preserving layer 2, so as to improve the protection effect of the base paper layer 1 and the aroma-preserving layer 2, and secondly, the polymer main chain of the polyurethane glue is very flexible, so that it has excellent flexibility after drying, so that the base paper layer 1 and the aroma-preserving layer 2 after bonding have good flexibility and bending fatigue resistance, which can facilitate the subsequent folding of the overall lining paper and improve the bonding effect;

[0027] The second adhesive layer 6 is made of chloroprene rubber glue with a gram weight of 0.3-1g / m 2 , the normal weight is 0.8g / m 2 , the chloroprene rubber glue is used for bonding. First, it is environmentally friendly and non-corrosive. Second, the chloroprene rubber glue has excellent flexibility and can adapt to the bonding of substrates with different thermal expansion coefficients. It also has high reactivity and can better bond with metals containing active atoms on the surface, thereby forming a soft-hard transition layer between the base paper layer 1 and the aluminum foil layer 3, thereby improving the bonding effect;

[0028] The side of the aluminum foil layer 3 away from the base paper layer 1 is coated with a waterproof coating, and the thickness of the aluminum foil layer 3 is 10-15 μm, preferably 13 μm. By coating the waterproof coating on the aluminum foil layer 3, the intrusion of external water vapor on the cigarettes inside the cigarette box can be effectively avoided, thereby improving the protection effect on the cigarettes;

[0029] The side of the hygroscopic layer 4 away from the flavor-preserving layer 2 is coated with a hygroscopic coating, and the thickness of the hygroscopic layer 4 is 3-4 μm, preferably 3.7 μm. The hygroscopic coating can absorb the water vapor entering the cigarette box after opening, thereby ensuring the dryness of the cigarette box, preventing the cigarettes from getting damp and becoming moldy or changing in flavor, and further improving the protection effect of the cigarettes.

[0030] Among them, the side of the aluminum foil layer 3 away from the base paper layer 1 is electroplated with anti-slip corrugations. The setting of the anti-slip corrugations can facilitate the bonding between the aluminum foil layer 3 and the inner wall of the cigarette box, thereby improving the bonding effect. Secondly, it is also convenient for the user to open the outermost aluminum foil layer 3, thereby improving convenience.

[0031] Reference Figure 1-Figure 3In the utility model, when in use, the base paper layer 1, the aroma-preserving layer 2, the aluminum foil layer 3 and the moisture-absorbing layer 4 are bonded and fixed by the first adhesive layer 5, the second adhesive layer 6 and the third adhesive layer 7, so as to produce an inner lining paper with aroma-preserving, waterproof and moisture-absorbing effects, thereby improving the use effect of the inner lining paper; and the first adhesive layer 5 and the third adhesive layer 7 are made of polyurethane glue, which firstly does not corrode between the base paper layer 1 and the aroma-preserving layer 2, thereby improving the protective effect of the base paper layer 1 and the aroma-preserving layer 2, and secondly, the polymer main chain of the polyurethane glue is very flexible , so that it has excellent flexibility after drying, and can make the bonded base paper layer 1 and the fragrance-preserving layer 2 have good flexibility and bending fatigue resistance, which can facilitate the subsequent folding of the entire lining paper and improve the bonding effect; and the second bonding layer 6 uses chloroprene rubber glue, which is environmentally friendly and non-corrosive, can adapt to the bonding of substrates with different thermal expansion coefficients, and has high reactivity, and can better combine with metals containing active atoms on the surface, thereby forming a soft and hard transition layer between the base paper layer 1 and the aluminum foil layer 3, thereby improving the bonding effect.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fragrance-retaining and waterproof lining paper for a cigarette box, comprising a base paper layer (1) and a fragrance-retaining layer (2) bonded thereto, wherein an aluminum foil layer (3) and a moisture-absorbing layer (4) are respectively arranged on the sides of the base paper layer (1) and the fragrance-retaining layer (2) facing away from each other, and characterized in that: The base paper layer (1) and the aroma-preserving layer (2) are bonded to each other via a first adhesive layer (5), the base paper layer (1) and the aluminum foil layer (3) are bonded to each other via a second adhesive layer (6), and the aroma-preserving layer (2) and the moisture-absorbing layer (4) are bonded to each other via a third adhesive layer (7).

2. The aroma-preserving and waterproof lining paper for cigarette boxes according to claim 1, characterized in that: The first adhesive layer (5) and the third adhesive layer (7) are both made of polyurethane glue, and the weight is 0.2-0.8 g / m 2 .

3. The aroma-preserving and waterproof lining paper for cigarette boxes according to claim 1, characterized in that: The second adhesive layer (6) is made of chloroprene rubber glue with a gram weight of 0.3-1 g / m 2 .

4. The aroma-preserving and waterproof lining paper for cigarette boxes according to claim 1, characterized in that: The side of the aluminum foil layer (3) away from the base paper layer (1) is coated with a waterproof coating, and the thickness of the aluminum foil layer (3) is 10-15 μm.

5. The aroma-preserving and waterproof lining paper for cigarette boxes according to claim 1, characterized in that: The weight of the aroma-retaining layer (2) is 4-6 g / m 2 .

6. The aroma-preserving and waterproof lining paper for cigarette boxes according to claim 1, characterized in that: The side of the hygroscopic layer (4) away from the fragrance-preserving layer (2) is coated with a hygroscopic coating, and the thickness of the hygroscopic layer (4) is 3-4 μm.

7. The aroma-preserving and waterproof lining paper for cigarette boxes according to claim 1, characterized in that: The side of the aluminum foil layer (3) away from the base paper layer (1) is electroplated with anti-slip corrugations.

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