KR20210019366A - Single Faced Cardboard Or Medium Paper For Shock-Absorbing Packaging - Google Patents

Abstract

The present invention relates to fluted paper for fill packaging, in which a plurality of cutout parts cut by being inclined at an angle (θ) of -45 to 45 degrees with respect to an intersection line intersecting a valley direction of the fluted paper are formed in the fluted paper, cutout lines cross an upper portion (H) of the fluted paper to be connected to the fluted paper of two unit lengths (U) connected to each other such that a spreading part (a) is formed on the upper portion (H), a length of the cutout parts is 3 to 5 /cosθ times the unit lengths (U) of the fluted paper, defined by the intersection line intersecting the valley direction of the fluted paper. The prevent invention can be utilized as a cushion paper material for packaging.

Description

Single Faced Cardboard Or Medium Paper For Shock-Absorbing Packaging}

The present invention relates to a single-sided corrugated cardboard or corrugated cardboard for filling packaging, and in particular, to a cushion material for filling packaging formed of paper that can be used as a substitute for an air cap of a vinyl material, as a material for filling packaging for parcel delivery.

In recent years, as the use of vinyl or plastic materials increases, the world is suffering from headaches in treating them. Vinyl or plastic materials are economical and are very convenient in terms of their use, but it is very difficult to recycle or treat them.

On the other hand, as the IT or online environment is remarkably developed, the use of packaging materials for packaging products sold is increasing as the online market rapidly increases.

Among them, as the use of vinyl air caps, which are widely used as cushioning materials, especially in courier packaging boxes, and widely referred to as bags used to package products, has increased, the government has proposed guidelines to restrict its use. In addition, preparations are being made to regulate its use as a cushioning material for parcel delivery by law.

As the necessity of finding a material to replace the air cap, which is a vinyl material, has emerged, several alternatives have been suggested, and the inventor of the present invention is particularly paying attention to single-sided cardboard.

One-sided corrugated cardboard is made by bonding the corrugated paper and the back paper by an adhesive, and can be used as a buffer material by the inner space formed between the corrugated paper and the back paper.

Republic of Korea Utility Model Registration No. 20-0119600 describes that the incision grooves at regular intervals are repeatedly cut in the longitudinal direction, and the incision grooves are formed to cross each other so that they are not located on the same line to form a packaging buffer sheet. On the other hand, a packaging buffer sheet configured to be disposed so as to cross 90 degrees is also described.

One-sided corrugated cardboard has a characteristic of bending in a direction orthogonal to the formation direction of the corrugated paper. By utilizing these characteristics, it is possible to wrap the object to be packaged by smoothly forming the curved part.

The packaging material buffer sheet in the above-described text facilitates the formation of a curved portion by forming a cutout groove in a single-sided corrugated cardboard, but the possibility of damage due to the package coming out or being exposed by the cutout groove must also be considered.

The shape of the object to be packaged will be very diverse, and it may not be desirable to form a cutout groove or the like in the sheet as described above in surrounding the object, and an integrated buffer sheet without cutoff grooves, etc. will be provided. There is a need. Air caps made of vinyl material that are currently used, so-called ``poppongi'', are formed in a sheet with a plurality of air bags, which can be packaged while providing cushioning performance to the target package. This air cap does not have an incision groove, etc., and is made of an integral sheet.

The single-sided corrugated board allows the corrugated part of the corrugated board to be easily bent and bent well in one direction so that the package can be wrapped. However, it does not bend well in the direction of the golsimji. Due to these characteristics, it is not desirable to package various types of packaging objects.

Accordingly, it would be desirable to provide a packaging material having a structure that deforms the golsimji and bends well in the direction of the golsimji.

In the present invention, in manufacturing corrugated cardboard, preferably single-sided corrugated cardboard, it is an object of the present invention to deform the corrugated corrugated board forming a single-sided corrugated board so that it bends well in the corrugation direction of the corrugated board so that it can be flexibly transformed in all directions when packing the target package To do.

The object of the present invention

As one-sided corrugated cardboard for filling packaging,

It consists of Golsimji and backside,

It is achieved by providing a single-sided corrugated cardboard for packing in which a plurality of incisions are incised at an angle (θ) of -45 degrees to +45 degrees with respect to the crossing line crossing the bone direction of the golsimji.

It is preferable that the incision line is connected to the upper part (H) of the golsimji and connected to the golsimji of two unit lengths (U) so that the development part (a) is formed on the upper part (H).

It is preferable that the length of the incision is 2/cosθ to 7/cosθ times, or 3/cosθ to 5/cosθ times of the unit length (U) defined at the crossing line crossing the bone direction of the bone core.

In addition, the object of the present invention,

As a corrugated paper for filling packaging,

A plurality of incisions are formed in the golsimji by inclining at an angle (θ) of -45 degrees to 45 degrees, or -30 to +30 degrees with respect to the intersection line crossing the bone direction of the golsimji,

The incision line crosses the upper part (H) of the golsimji and connects to the golsimji of two unit lengths (U) so that the development part (a) is formed in the upper part (H),

The length of the incision is 2/cosθ to 7/cosθ times or 3/cosθ to 5/cosθ times as much as 2/cosθ to 7/cosθ times or 3/cosθ to 5/cosθ times of the unit length (U) defined at the crossing line crossing the bone direction of the bone core Is achieved.

By providing the single-sided corrugated cardboard or corrugated paper of the present invention, it is easily bent in the corrugated direction of the corrugated paper, so that it can be flexibly deformed in all directions when packing the target package, so it has high utility as a cushion paper material for packaging.

1 is a plan view illustrating a single-sided corrugated cardboard according to an embodiment of the present invention.
2 is a front view of the single-sided corrugated cardboard illustrated in the direction B of FIG. 1.
3 is a view illustrating that the single-sided corrugated cardboard of FIG. 2 is bent in a direction crossing the bone direction of the golsimji.
4 is a plan view illustrating a corrugated cardboard for filling in which an incision is formed in an embodiment of the present invention.
5 is a plan view illustrating a corrugated core of a single-sided corrugated cardboard in which an incision is formed in another embodiment.
6 is a cross-sectional view illustrating a single-sided corrugated cardboard for filling of FIG. 5 in a direction B.
FIG. 7 is an exemplary view showing the one-sided corrugated cardboard for filling of FIG. 5 in the direction A, and is a view illustrating that it is bent in the development part (a) in the bone direction of the golsimji.
8 is a plan view illustrating a Golsimji in which a plurality of incisions are formed in a symmetrical alternating manner in different directions, respectively.
9 is a cross-sectional view illustrating a single-sided corrugated cardboard for filling of FIG. 8 in a direction B.
FIG. 10 is an exemplary view showing the filling golsimji of FIG. 8 from the direction A, and is a diagram illustrating that the golsimji is bent in the development part (a) in the golsimji direction.
11 is a plan view illustrating a corrugated board or a corrugated board formed in a direction orthogonal to the bone direction in which an incision in the bone core is formed.
12 is an explanatory view illustrating that the cardboard or corrugated paper of the present invention is stored in a stacked manner in a storage box having an incision to facilitate the packaging operation of the packaged object.

As illustrated in FIGS. 1 and 2, the single-sided corrugated cardboard 1 is formed by being bonded to the corrugated paper 10 and the back paper 20. The corrugated paper 10 and the back paper 20 formed in a wave shape are adhered by an adhesive composition.

The single-sided corrugated cardboard 1 is manufactured by processing the base paper into a corrugated paper 10 in a single-sided corrugated cardboard manufacturing apparatus (or a corrugator), and then bonding the backing paper 20 and the adhesive composition.

The corrugated board 10 constituting the above-described single-sided corrugated cardboard 1 has a characteristic of being easily wound in a direction crossing the corrugated direction as illustrated in FIG. 3 while being formed in a corrugated cardboard manufacturing apparatus. Even if the Golsimji 10 and the backing paper 20 are adhered by an adhesive composition, they are easily wound or bent in a direction as illustrated in FIG. 3.

As described above, a conventional single-sided corrugated cardboard has a characteristic that it bends only in one direction crossing the bone direction of the corrugated board, and the deformation of the corrugated board 10 as shown in Figs. 7 and 10 illustrated in the direction A This is difficult. Accordingly, it is not preferable to enclose and package various types of packaging objects.

The single-sided corrugated cardboard (1) is typically, a predetermined bone height, bone spacing, respectively, A bone 4.5 ~ 4.8mm, 8.7mm, B bone 2.5 ~ 2.8mm, 5.2mm, C bone 3.5 ~ 3.8mm, 8.0mm, E valleys are defined as 1.2~1.6mm, 3.3mm, but there is no limit as long as the height and size can be used as single-sided corrugated cardboard for filling packaging.

Deformation of the single-sided corrugated cardboard 1 in the form as shown in FIGS. 7 and 10 is a component ratio of the adhesive composition that adheres the corrugated paper 10 and the back paper 20, or the degree of distribution thereof, as well as the corrugated paper 10 or It seems to appear differently depending on the weight, strength, or material of the paper material that makes up the backing paper 20.

The single-sided corrugated cardboard 1 is provided in a roll state in a single-sided corrugated cardboard manufacturing apparatus, and as the base paper is released from the roll, the shape of the corrugated paper 10 is formed through the corrugated core forming device, and is provided in another roll by a starch adhesive. It is formed by bonding with the backing paper (20).

The incision 30 may be formed in both the Golsimji 10 or the back surface 20 and the Golsimji 10.

In the embodiment of the present invention, it is illustrated that the incision part 30 is provided only in the golsimji 10, but it may be selectively applied to the backside paper 30.

As illustrated in FIGS. 4 and 5, a plurality of cutouts 30 are disposed in the golsimji 10 of the present invention at predetermined intervals. The incision 30 is formed by being inclined at a predetermined angle of inclination (θ) with respect to the cross line (O) orthogonal to the bone direction of the golsimji (10).

The length of the incision part 30 can be expressed by defining the unit length (U) of the golsimji illustrated in FIGS. 4, 5, 6 and 8. Golsimji unit length (U) is the length from the upper (H) to the lower (L) of the bone of the golsimji (10), is defined in the crossing line (O) connected in a direction orthogonal to the bone direction of the golsimji (10). One valley is made of two unit lengths (U), and in order for the incision part 10 to be developed, it is preferably made of two unit lengths (U) and crosses the upper portion (H).

The length of the cutout 30 in FIG. 4 is proportional to the value of U/cosθ according to the inclination angle θ of the crossing line O where two unit lengths U are connected, and accordingly, the length is 2U. /cosθ.

On the other hand, in the process of manufacturing the corrugated paper 1 with a single-sided corrugated cardboard manufacturing apparatus, before the original paper is unwound from the roll wound and introduced into the bone core forming device, an incision is formed in a predetermined incision forming device and flows into the bone core forming device. And the Golsimji 10 on which the Golsimji is formed is adhered to the back-paper 20 to form a single-sided cardboard (1).

The incision 30 is formed in the golsimji 10 to a predetermined length, the length is not limited. However, if the transverse length (D) of the incision line 10 (interval between incision lines) is long, the base paper forming the bone core is damaged during the manufacturing process of forming the bone core 10 by the tension introduced into the bone core forming device, resulting in a defect. do. Accordingly, in order to overcome this point, the spacing of the incision line 10 should be appropriately selected according to the manufacturing speed, temperature, and characteristics of the manufacturing apparatus, and there is no limitation in the present invention.

In addition, the development part (a) of the incision part 30 is defined to be formed by connecting in the direction of two lower parts (L) of the unit length (U) intersecting the upper part (H) of the golsimji (10). , The development part (a) starts from the top of the bone (H) of the incision part 30 that continues in this way.

As illustrated in FIG. 4, when the incision 30 having a length of 2U/cosθ is formed in the bone core 10, the incision line 30 is disposed in the deployment state (1), (3), and (4). ) Is formed, but the deployment portion (a) is not formed in the arrangement state (2).

In the arrangement state (1), (3), (4) of the incision part 30 of 2U/cosθ length, as illustrated in FIGS. 7 and 10, when an external force is applied, the incision part of the bone core 10 (10) is easily deployed in the deployment portion (a). On the other hand, it bends easily in the opposite direction.

Figure 5 illustrates that the incision 30 of 3U/cosθ is provided in the arrangement state (5), (6), (7), (8), and in the arrangement state (5), it has two upper parts (H). The development part (a) is formed by connecting, and the deployment part (a) which has one upper part (H) is formed in (6), (7), (8).

In the 2U/cosθ-length cutout 30 of FIG. 4, there may be cases where the deployment part (a) is not formed as in the arrangement state (2), but in the 3U/cosθ-length cutout 30 of FIG. In 5), (6), (7), and (8), the deployment part (a) is arranged. By providing the development part (a) to the golsimji 10, it is easily bent in the direction as illustrated in FIGS. 7 and 10 or the opposite direction thereof.

As shown in FIG. 4, in 2U/cosθ, the deployment part (a) is not provided in some cases as in the arrangement state (2), so the incision 30 of 3U/cosθ length of FIG. 5 can be provided with all the deployment parts (a). It would be desirable to provide.

As the unit length (U) of the incision line (U) increases, the frequency of breakage during bone core processing of the original paper increases as the transverse length (D) increases, so it is not desirable to provide a large length of the incision line (30). .

In FIG. 8, there is no limitation on the placement position as an example of alternating arrangements in different directions symmetrical with respect to the intersection line O connected in a direction orthogonal to the bone direction of the golsimji 10. The arrangement of the incision line 30 of this type can be mainly applied when the shape of the package object is a complex shape.

9 is a view illustrating a cushioning material for packaging made of only the corrugated paper 10 without the back paper 20, unlike FIGS. 6 and 7.

4, 5, 8, and 11, when the incision 30 is provided without the back paper 20, the length and angle of the incision 30 in consideration of the weight or strength of the packaging material It should be provided smaller than that with the backing paper 20.

The length and angle of the incision line 30 may be differently applied depending on the strength of the paper and the weight of the paper. The inclination angle θ of the incision line 30 is preferably -45 degrees to 45 degrees or -30 to +30 degrees. And the length of the incision line 30 is preferably 2/cosθ to 7/cosθ times or 3/cosθ to 5/cosθ times, taking into account all of the weight, strength, processing speed, temperature, etc. of the base paper forming the bone core 30 Must be provided.

As mentioned above, in the case of providing only the corrugated paper 10 as a packaging material, the inclination angle θ or the length of the incision line should be set to be smaller than that provided with the back paper 20.

11 illustrates that the incision line 30 having an inclination angle θ of 0 degrees is arranged, and the arrangement of the incision line 30 can be narrowly applied, so that it can be provided as a material for packaging a small packaged object. .

One-sided cardboard (1) or corrugated paper (10) may be provided by being rolled in a roll form. On the other hand, as illustrated in FIG. 12, a plurality of single-sided corrugated cardboard 1 cut to a predetermined size are stacked and stored in the storage box 100.

In packaging the target package, as illustrated in FIG. 12, the single-sided corrugated cardboard (1) or corrugated cardboard (10) stored inside through the cutout 110 formed in the storage box 100 is taken out in the direction of the arrow. At this time, while pulling out the cutout 110 and the single-sided cardboard 1, it is lifted while being bent in the same direction as in FIGS. 7 and 10.

While the single-sided corrugated cardboard 1 is bent as described above, it is easy for a packaging operator to grip the single-sided corrugated cardboard 1, which is effective in packing the packaged object.

1: single sided corrugated cardboard
10: Golsimji
20: back paper
30: incision
100: storage box
110: incision
U: unit length
a: development part
H: upper bone
L: lower bone

Claims (4)

As a single-sided cardboard for filling packaging,
It consists of Golsimji and backside,
One-sided corrugated cardboard for filling packaging, characterized in that a plurality of incisions are formed in the corrugated core by being inclined at an inclination angle (θ) of -45 degrees to 45 degrees with respect to the crossing line of the corrugated core. The method of claim 1,
The incision line is a single-sided corrugated cardboard for filling packaging, characterized in that it is formed in the upper portion (H) by connecting the two unit lengths (U) crossing the upper portion (H) of the corrugated core. The method according to any one of claims 1 or 2,
The length of the incision is 2/cosθ to 7/cosθ times of the unit length (U) of the golsimji defined at an intersection line crossing the direction of the golsimji. As a corrugated paper for filling packaging,
A plurality of incisions incised at an angle (θ) of -45 degrees to 45 degrees with respect to the crossing line crossing the bone direction of the golsimji are formed in the golsimji,
The incision line crosses the upper part (H) of the golsimji and connects to the golsimji of two unit lengths (U) so that the development part (a) is formed in the upper part (H),
The length of the incision is 3/cosθ to 5/cosθ times of the unit length (U) of the golsimji defined at an intersection line crossing the bone direction of the golsimji.

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