CN102188150A

CN102188150A - Paper hanger

Info

Publication number: CN102188150A
Application number: CN2010101302937A
Authority: CN
Inventors: 汪瑞民; 蔡依蒨
Original assignee: EMAMA EDUCATIONAL CONSULTING (SHANGHAI) Co Ltd
Current assignee: EMAMA EDUCATIONAL CONSULTING (SHANGHAI) Co Ltd
Priority date: 2010-03-19
Filing date: 2010-03-19
Publication date: 2011-09-21

Abstract

The invention discloses a paper hanger which is made of reinforced paper board. The reinforced paper board comprises two surface paper layers at the outer side and a plurality of core layers sandwiched between the two surface paper layers; at least one core layer is made of jute fiber; the paper hanger at least comprises a pair of plate-shaped wall parts which are not coplanar; the pair of wall parts are made by bending a complete reinforced paper board; each wall part is provided with at least one hook part. As the tensile strength of the jute fiber is higher than that of common paper fibers and the jute fiber is isotropic, the thickness of the paper board and the surface area of the hook parts can be properly reduced. Simultaneously, since the jute fiber also has higher shearing strength and cannot be torn off easily even though folded, the reinforced paper board reinforced with jute fiber can be used for making a paper hanger with three-dimensional shape. The paper hanger provided by the invention is more attractive in appearance, and the strength of the hook parts is greatly increased.

Description

A kind of paper hook

Technical field

The present invention relates to a kind of paper product, specifically, relate to a kind of the employing and strengthen the paper hook that cardboard is made

Background technology

In field of product packaging, often need use various hooks.These hooks are generally plastic products, and this is because of cheaper as the cost of raw material with plastics, and can make product compact.

Yet plastics can produce great amount of carbon dioxide and other noxious materials in process of production as petroleum chemicals.And aspect recycling and utilizing again, also can cause burden to environment.Therefore, surging along with environmental consciousness occurred variously replacing plastics as raw-material hook product with environment-friendly materials gradually, wherein more common links up with for papery.

But, adopt cardboard to replace the raw material of plastics as hook, not only cost is higher, and the scope of application also has certain limitation.Compare with Plastic hanger, the weak point of paper hook mainly is:

1, the longitudinal tensile strength of cardboard is subject to the number of paper fiber, therefore, in order to reach the intensity identical with Plastic hanger, must increase surface area, makes product small and exquisite inadequately, and raw-material demand is also increased thereupon, has improved production cost;

2, cardboard can not bend, and is easy to be torn when being subjected to shearing force (just tearing), so existing paper hook can only be made tabular, can not realize three-dimensional contouring as Plastic hanger.Dull and stereotyped hook is not only comparatively dull in shape, and its intensity also far is inferior to three-dimensional hook.

Summary of the invention

The object of the present invention is to provide a kind of each all higher to hot strength, as to realize three-dimensional contouring paper hook.

This goal of the invention is achieved by the following technical solution:

A kind of paper hook, this paper hook adopt to be strengthened cardboard and makes, and comprises the flat wall portion that is made of 1 block of complete described reinforcement cardboard, offers at least 1 hook portion in this wall portion.Described reinforcement cardboard comprises the two-layer facial tissue in the outside and is clipped in multilayer sandwich layer between this two-layer facial tissue, at least the described sandwich layer of one deck adopts tossa to make, described paper hook comprises 1 pair of described wall portion of coplane not mutually at least, and this is formed by a complete described reinforcement cardboard creasing wall portion.

Further, the profile of described 1 pair of wall portion minute surface symmetry each other; Be opened in this to the profile of 1 pair of hook portion in the wall portion also minute surface symmetry each other.

Further, between described facial tissue and the described sandwich layer, and between the adjacent two-layer described sandwich layer, all bonding mutually by the cardboard adhesive.

According to paper hook of the invention process, have following advantage:

1, adopts the hot strength of sandwich layer on vertical and horizontal that tossa makes all than higher, can remedy the one-way of paper tensile strength of fiber, make the intensity of cardboard on all directions all increase, therefore can suitably reduce the surface area of hook portion.

2, the shear strength of tossa is also than higher, even fold, the folding line place also is difficult for being torn, and therefore can produce the paper hook of three-dimensional contouring, and not only more attractive in appearance, the intensity of hook portion also increases greatly.

3, because the structure of the fibre structure of tossa and paper fiber is similar, and the two is bonding easily, the technology when making and reclaim cardboard is all fairly simple.

Description of drawings

Fig. 1 is the profile schematic diagram of a complete reinforcement cardboard that is used to make the paper hook of three-dimensional contouring;

Fig. 2 is the structural representation that the paper of the three-dimensional contouring of embodiment 1 is linked up with;

Fig. 3 is for strengthening the cross section structure schematic diagram of cardboard;

Fig. 4 is for strengthening the cross section structure schematic diagram at cardboard creasing place;

Fig. 5 is the stressed schematic diagram of tensile strength test.

Wherein:

1, brown paper; 2, sandwich layer; 3, grinding pipe paper; 4, gunny cloth;

10, strengthen cardboard; 12, folding line; 13, first bonding part; 14, second bonding part; 15, the first hook groove; 16, the second hook groove; 17, the 3rd bonding part; 18, the 4th bonding part;

20, paper hook; 21, first wall portion; 22, the second wall portion; 23; First hook portion; 24, second hook portion; 25, the 3rd wall portion; 26, carry hook portion.

The specific embodiment

Below in conjunction with specific embodiment, the invention will be further described.Should be understood that following examples only are used to the present invention is described but not are used to limit scope of the present invention.

As shown in Figure 1, the paper of embodiment 1 hook 20 adopts 10 bendings of a complete reinforcement cardboard to form.Folding line 12 shown in each bar dotted line is with cardboard creasing in the accompanying drawing 1, first then that the position is the corresponding mutually bonding part 13 and second bonding part 14, the 3rd bonding part 17 and the 4th bonding part 18 are bonding respectively, have just constituted the paper hook 20 of three-dimensional contouring as shown in Figure 2.

This paper hook 20 possesses the first wall portion 21 and the second wall portion 22 that is the minute surface symmetry.In first wall portion 21, have the first hook groove 15 of L font, thereby form first hook portion 23 that is used to hang thing; In the second wall portion 22, have the first hook groove 15 of L font equally, thereby form second hook portion 24 that is used to hang thing.This first hook portion 23 and second hook portion 24 are the minute surface symmetry equally, therefore can guarantee the stress equalization of both sides.

Top at paper hook 20 possesses by the 3rd bonding part 17 and the 4th bonding part 18 bonding the 3rd wall portions 25 that constitute, and has the second hook groove 16 of approximate L font in the 3rd wall portion 25, carries hook portion 26 thereby formed one.This direction of carrying hook portion 26 is opposite with first hook portion 23 and second hook portion 25, is to be used for whole paper hook 20 and the weight that hangs over the lower end carried together carrying.

Because the paper of three-dimensional contouring hook 20 possesses first hook portion 23 and second hook portion 24 of minute surface symmetry simultaneously, the weight of heavy that hangs over the lower end can be disperseed to bear by these two hook portions, alleviated the load-bearing of each hook portion, therefore suitably attenuate is strengthened the thickness of cardboard 10, or reduces the surface area of hook portion.Not only saved raw material, made that also paper hook 20 is more light and handy, moulding is more attractive in appearance.

On the other hand, be used for embodiment 1 reinforcement cardboard 10 cross section structure as shown in Figure 3: the two-layer facial tissue in the outside is 220g/m ²Brown paper 1; The sandwich layer that is clipped between the facial tissue comprises 3 layers of 200g/m ²Grinding pipe paper 3 and one deck 80g/m ²Gunny cloth 4 (being the tossa layer).

Compare with the common paper fiber, tossa has higher draw tensile strength and shear strength, and its hot strength is isotropic, has remedied the defective of paper fiber hot strength wretched insufficiency in the horizontal.Just because of the existence of gunny cloth 4, just make to strengthen cardboard 10 folding and be subjected to shearing force after can not tear along folding line 12 yet, thereby realized the three-dimensional contouring of paper hook 20.As shown in Figure 4, the tossa in the gunny cloth 4 is interlaced, and is long fibre, compares with the paper fiber of short fiber, can better bear the bending pulling force that produces and shearing.

Paper hook to embodiment 1 carries out the tensile strength test contrast with the paper hook that adopts common cardboard manufacturing.Common cardboard: the two-layer facial tissue in the outside is 220g/m ²Brown paper 1; The sandwich layer that is clipped between the facial tissue comprises 3 layers of 200g/m ²Grinding pipe paper 3, adopt the cardboard adhesive bonding mutually between each layer.

Strengthen cardboard 10: on the basis of common cardboard, increased one deck 80g/m ²Gunny cloth 4.

With cardboard cutting and be folded into paper hook-shaped shown in Fig. 2,5, adopt cupping machine that sample is applied pulling force and increases this pulling force gradually until sample breakage, record maximum pull value.The application of force direction of pulling force is shown in arrow in the accompanying drawing 5.

Result of the test: the maximum pull that adopts the paper hook of the three-dimensional contouring of common cardboard manufacturing can bear is 16.4kgf, and the maximum pull that the paper of embodiment 1 hook can bear is 22.1kgf.

This shows that according to the paper hook that present embodiment is made, hot strength shows that apparently higher than the paper hook that adopts common cardboard to make gunny cloth 4 has played good strengthening action.

Claims

1. paper hook, this paper hook adopt to be strengthened cardboard and makes, and comprises the flat wall portion that is made of 1 block of complete described reinforcement cardboard, offers at least 1 hook portion in this wall portion, it is characterized in that:

Described reinforcement cardboard comprises the two-layer facial tissue in the outside and is clipped in multilayer sandwich layer between this two-layer facial tissue, and the described sandwich layer of one deck adopts tossa to make at least,

Described paper hook comprises 1 pair of described wall portion of coplane not mutually at least, and this is formed by a complete described reinforcement cardboard creasing wall portion.

2. a paper as claimed in claim 1 is linked up with, and it is characterized in that: the profile of described 1 pair of wall portion is the minute surface symmetry each other; Be opened in this to the profile of 1 pair of hook portion in the wall portion also minute surface symmetry each other.

3. a paper as claimed in claim 1 or 2 is linked up with, and it is characterized in that: between described facial tissue and the described sandwich layer, and between the adjacent any two-layer described sandwich layer, all bonding mutually by the cardboard adhesive.