WO2020248974A1 - 一种新型纸板 - Google Patents

一种新型纸板 Download PDF

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Publication number
WO2020248974A1
WO2020248974A1 PCT/CN2020/095145 CN2020095145W WO2020248974A1 WO 2020248974 A1 WO2020248974 A1 WO 2020248974A1 CN 2020095145 W CN2020095145 W CN 2020095145W WO 2020248974 A1 WO2020248974 A1 WO 2020248974A1
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Prior art keywords
corrugated
paper
cardboard
layer
type
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PCT/CN2020/095145
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English (en)
French (fr)
Inventor
李若然
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山东太辉包装有限公司
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Publication of WO2020248974A1 publication Critical patent/WO2020248974A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/08—Corrugated paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • D21H27/40—Multi-ply at least one of the sheets being non-planar, e.g. crêped

Definitions

  • the utility model relates to the technical field of packaging cartons, in particular to a new type of cardboard.
  • the express cartons are made of corrugated cardboard.
  • the corrugated direction of this corrugated cardboard is (vertical) ) Single direction, resulting in poor compression resistance of the carton perpendicular to the flute direction.
  • the express cartons used for bulky goods have a particularly obvious performance.
  • the packaging cartons of many bulky goods (electric heaters, microwave ovens, etc.) have not been transported to their destinations because of handling, collisions, and crowding during transportation.
  • the utility model overcomes the shortcomings in the prior art, and provides a new type of paperboard that can resist compression in the vertical and horizontal directions, is beneficial to recycling and reuse, and is environmentally friendly.
  • a new type of cardboard includes an upper paper layer, a lower paper layer, and also includes a corrugated paper layer bonded to the upper paper layer and the lower paper layer respectively, and the corrugated paper layer includes For corrugated paper with more than 2 layers, the corrugated directions of adjacent layers of corrugated paper cross.
  • the shape of any layer of the corrugated corrugated paper can be U-shaped, V-shaped or UV-shaped.
  • the specifications of any layer of the corrugated corrugated paper can be type A, type B, type C, type E or type F.
  • a core paper layer is bonded between adjacent layers of the corrugated corrugated paper.
  • the adjacent layers of the corrugated corrugated paper are directly bonded.
  • the corrugated corrugated paper has 2 layers.
  • the shape of the corrugated corrugated cardboard is UV type.
  • the specifications of the corrugated corrugated paper are all type B.
  • the beneficial effect of the present invention is that the carton produced by the present invention can withstand the pressure in the horizontal and vertical directions of the plane where the cardboard is located, has better compression resistance, and can reduce bulky goods to a certain extent. Wrinkles, cracks and product damage in the corrugated direction of the packaging cartons, thereby reducing the complaint rate caused by the packaging cartons.
  • the utility model When the utility model is used as a bottom pad, it can withstand the pressure in the horizontal and vertical directions in the plane where the cardboard is located, and has better compression resistance.
  • the bottom pad produced by the technical solution of the utility model in the cake industry will not produce The bending of the paper direction.
  • the present invention uses less paper materials, lower cost, and is more energy-saving and environmentally friendly than solid cardboard.
  • the utility model adopts the method of directly bonding adjacent layers of corrugated paper, it can reduce the use of at least one core paper layer under the condition of better compression resistance than traditional ordinary corrugated paper, which can save paper and reduce cardboard Weight, save material costs, production costs, transportation costs, and speed up manufacturing; in addition, the adhesive used in the corrugated bonding site needs to be ventilated and dried.
  • the traditional ordinary corrugated paper can only ventilate along the corrugated direction (single direction) to make it sticky.
  • Adhesive glue dries quickly, and although the utility model is also ventilated along the corrugated direction, it can actually pass through in two directions, so the drying speed of the adhesive glue is faster and more uniform; in addition, it will form at the position where the corrugated and corrugated are bonded. When corrugated and corrugated are interlocked, the bonding strength of corrugated cardboard is greater than that of traditional ordinary corrugated cardboard.
  • Figure 1 is a three-dimensional schematic diagram of a four-layer cardboard in a new type of cardboard
  • Figure 2 is a partial enlarged view of A in Figure 1;
  • Figure 3 is a schematic front view of a four-layer cardboard in a new type of cardboard
  • Figure 4 is a partial enlarged view at B in Figure 3;
  • Figure 5 is a schematic left view of a four-layer cardboard in a new type of cardboard
  • Figure 6 is a partial enlarged view of C in Figure 5;
  • Figure 7 is a three-dimensional schematic diagram of a five-layer cardboard with a core layer between corrugated corrugated paper;
  • Figure 8 is a partial enlarged view of D in Figure 7;
  • Figure 9 is a schematic diagram of the three-dimensional structure of a six-layer cardboard in a new type of cardboard
  • Figure 10 is a partial enlarged view of E in Figure 9;
  • Figure 11 is a three-dimensional schematic diagram of a nine-layer cardboard with a core layer between corrugated corrugated paper;
  • Fig. 12 is a partial enlarged view at F in Fig. 11.
  • 1 upper paper layer 1 upper paper layer, 2 lower paper layers, 3 corrugated paper layers, 31 corrugated paper layers, and 32 core paper layers.
  • Example 1 As shown in Figures 1 to 6: a new type of paperboard includes an upper paper layer 1, a lower paper layer 2, and also a corrugated paper layer 3 bonded to the upper paper layer 1 and the lower paper layer 2, respectively. 3 includes two layers of corrugated paper 31, the flutes of the two layers of corrugated paper 31 are cross-bonded together, and the shapes of the two layers of corrugated paper 31 are all UV-shaped, and the specifications are all B-shaped.
  • Embodiment 2 As shown in Figures 7 and 8: This embodiment is different from Embodiment 1 in that the core paper layer 32 is bonded between the two layers of corrugated paper 31, and the corrugated cross of the two layers of corrugated paper 31 cross.
  • Example 3 As shown in Figures 9 and 10: a new type of paperboard includes an upper paper layer 1, a lower paper layer 2, and a corrugated paper layer 3 and a corrugated paper layer 3 which are respectively bonded to the upper paper layer 1 and the lower paper layer 2 It includes 4 layers of corrugated corrugated paper 31, and the adjacent layers of corrugated corrugated paper 31 are directly bonded together after the corrugated direction is crossed. And the shape of each layer of corrugated corrugated paper 31 flutes are all UV-type, and the specifications are all B-type.
  • Embodiment 4 As shown in FIG. 11 and FIG. 12: The difference between this embodiment and Embodiment 3 is that a core paper layer 32 is bonded between adjacent layers of corrugated corrugated paper 31.
  • the corrugated shape of any layer of the corrugated corrugated paper 31 can be any of U-shaped, V-shaped, and UV-shaped.
  • the specifications of the corrugated corrugated paper 31 in any layer can be any of Type A, Type B, Type C, Type E or Type F.
  • the traditional common corrugated cardboard can withstand pressure in the same direction as the corrugated direction in the plane of the cardboard, and the direction perpendicular to the corrugated direction is not pressure resistant; while the present invention can withstand two-way compression, that is, the same direction as the corrugated direction and the corrugated direction The pressure resistance is even in the vertical direction, and the pressure resistance performance of the utility model is more uniform.
  • the utility model adopts the method of directly bonding adjacent layers of corrugated paper 31, it can reduce the use of at least one core paper layer 32 under the condition of better compression resistance than traditional ordinary corrugated paper, which can save paper.
  • Reduce the weight of cardboard save material costs, production costs, transportation costs, and speed up manufacturing; the adhesive used in the corrugated bonding site needs to be ventilated and dried.
  • Traditional ordinary corrugated paper can only be ventilated along the corrugated direction (single direction) to make it sticky.
  • Adhesive drying is fast, and although the utility model is also ventilated along the corrugated direction, it can achieve two-way ventilation, so the drying speed of the adhesive glue is faster and more uniform; in addition, corrugations will be formed where the corrugated and corrugated are bonded.
  • the bonding strength of corrugated cardboard is stronger than that of traditional ordinary corrugated cardboard.
  • the 4-layer cardboard produced by the technical solution to be protected by the utility model has better compression resistance than the traditional 5-layer corrugated cardboard, and the material cost, production cost, and transportation cost are lower, and it can realize the use of less paper. Let the cardboard have greater compressive strength.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

一种纸板，其包括上面纸层(1)、下面纸层(2)，还包括与上面纸层(1)、下面纸层(2)分别粘接的瓦楞纸层(3)，瓦楞纸层(3)包括2层以上的波形瓦楞纸(31)，波形瓦楞纸(31)相邻层的楞向十字交叉。

Description

一种新型纸板 技术领域
本实用新型涉及包装纸箱技术领域，特别涉及一种新型纸板。
背景技术
随着我国物流行业的繁荣发展，快递行业所使用的快递纸箱越来越多，而快递纸箱一股采用的是瓦楞纸板制成的纸箱，这种瓦楞纸板的楞向一股是(竖向的)单一方向的，从而造成纸箱在与楞向垂直向的抗压性就很差。尤其是大件商品所采用的快递纸箱这种表现尤为明显，比如很多大件商品(电热取暖器、微波炉等)的包装纸箱还没有运输到目的地，就因为运输过程中的搬运、碰撞、挤压等原因造成纸箱在楞向方向的褶皱、破裂，甚至商品的损伤，从而使得很多顾客怀疑快递纸箱在运输过程中拆封过，进而顾客对商家进行投诉、快递进行投诉，对产品质量和商家的信誉度造成一些不好的影响。
除了快递行业，还有一些其他行业需要用到纵横向抗压都比较强的底垫类纸板或纸箱，比如人们熟悉的蛋糕行业。随着人们物质生活的快速提高，我国蛋糕产业日益发展壮大，随着而来的是蛋糕盒底垫的使用量越来越大，而蛋糕盒底垫通常有两种，一种是选用塑料材质的底垫，这种底垫会带来一定的环境污染，不利于回收再利用。一种是采用纸板底垫，这种底垫有采用单一楞向的瓦楞纸板作为底垫的，其抗压性能不好，当糕点放置在这种底垫上的时候，底垫会产生于向面纸方向的弯曲，而这一定程度上会影响蛋糕的运输；也有采用实心纸板作为底垫的，但是这种底垫一般至少有3mm厚，即纸的含量很高，成本比较高，同时也不符合节能环保的政策导向。
发明内容
本实用新型克服了现有技术中的不足，提供了一种纵横方向都能抗压、利于回收再利用、环保的新型纸板。
为了解决上述技术问题，本实用新型是通过以下技术方案实现的：一种新型纸板包括上面纸层、下面纸层，还包括与上面纸层、下面纸层分别粘接的瓦楞纸层，瓦楞纸层包括2层以上的波形瓦楞纸，波形瓦楞纸相邻层的楞向十字交叉。
所述波形瓦楞纸任一层的形状可为U形、V形或UV形。
所述波形瓦楞纸任一层的规格可为A型、B型、C型、E型或F型。
所述波形瓦楞纸相邻层之间粘接有芯纸层。
所述波形瓦楞纸相邻层直接粘接。
所述波形瓦楞纸为2层。
所述波形瓦楞纸楞的形状均为UV型。
所述波形瓦楞纸的规格均为B型。
与现有技术相比，本实用新型的有益效果是：采用本实用新型所生产的纸箱能够承受纸板所在平面纵横两个方向的压力，抗压性能更好，能在一定程度上减少大件商品包装纸箱楞向的褶皱、破裂及商品破损，进而减少顾客因包装纸箱所造成的投诉率。本实用新型作为底垫使用时，能够承受纸板所在平面内纵横两个方向的压力，抗压性能更好，比如蛋糕行业采用本实用新型所述的技术方案生产出的底垫时，不会产生面纸方向的弯曲。相同的抗压强度的纸板，本实用新型比实心纸板所用纸质材料更少，成本更低，也更加节能环保。本实用新型如果采用波形瓦楞纸相邻层直接粘接的这种方式，在比传统普通瓦楞纸抗压性能更好的情况下，能够至少减少一层芯纸层的使用，这样能节省纸张，减轻纸板重量，节省材料成本、生产成本、运输成本，加快制造速度；此外，在瓦楞粘接处所使用的粘接胶是需要通风干燥的，传统普通瓦楞纸只能沿着瓦楞方向(单一方向)通风使粘接胶快速干燥，而本实用新型虽然也是沿着瓦楞方向通风，但实际能够实现双向通过，故粘接胶的干燥速度更快，更均匀；此外，在瓦楞与瓦楞相粘接的位置会形成瓦楞与瓦楞相扣合的情形，瓦楞纸板的粘接强度也就比传统的普通瓦楞纸板的粘接强度更大。
附图说明
图1是一种新型纸板中四层纸板的立体结构示意图；
图2是图1中A处的局部放大图；
图3是一种新型纸板中四层纸板的主视示意图；
图4是图3中B处的局部放大图；
图5是一种新型纸板中四层纸板的左视示意图；
图6是图5中C处的局部放大图；
图7是波形瓦楞纸之间设有芯纸层的五层纸板的立体结构示意图；
图8是图7中D处的局部放大图；
图9是一种新型纸板中六层纸板的立体结构示意图
图10是图9中E处的局部放大图；
图11是波形瓦楞纸之间设有芯纸层的九层纸板的立体结构示意图；
图12是图11中F处的局部放大图。
图中，1上面纸层、2下面纸层、3瓦楞纸层、31波形瓦楞纸、32芯纸层。
具体实施方式
下面结合附图与几个具体实施方式对本实用新型作进一步详细描述。
实施例1：如图1至图6所示：一种新型纸板包括上面纸层1、下面纸层2，还包括与上面纸层1、下面纸层2分别粘接的瓦楞纸层3，瓦楞纸层3包括2层波形瓦楞纸31，这2层波形瓦楞纸31的楞向十字交叉粘接在一起，且这2层波形瓦楞纸31楞的形状均为UV形、规格均为B型。
实施例2：如图7、图8所示：本实施例与实施例1不同之处在于，上述2层波形瓦楞纸31之间粘接有芯纸层32，2层波形瓦楞纸31的楞向十字交叉。
实施例3：图9、图10所示：一种新型纸板包括上面纸层1、下面纸层2，还包括与上面纸层1、下面纸层2分别粘接的瓦楞纸层3，瓦楞纸层3包括4层波形瓦楞纸31，波形瓦楞纸31相邻层的楞向十字交叉后直接粘接在一起。且各层波形瓦楞纸31楞的形状均为UV型，规格均为B型。
实施例4：如图11、图12所示：本实施例与实施例3不同之处在于波形瓦楞纸31相邻层之间粘接有芯纸层32。
虽然上述实施例中波形瓦楞纸31楞的形状以及规格大多采用的是UV形、B型，但是实际上，波形瓦楞纸31在任一层的楞形可以为U形、V形、UV形其中的任一种，波形瓦楞纸31在任一层的规格可以是A型、B型、C型、E型或F型种的任一种。虽然实施例部分并未将所有的实施例一一枚举，但是只要波形瓦楞纸31相邻两层的楞向十字交叉就落入本实用新型所要保护的范围。
另外，不管波形瓦楞纸31相邻两层之间是否设有芯纸层32也都落入本实用新型所要保护的范围。
传统的普通瓦楞纸板在纸板平面内，与瓦楞方向相同的方向耐压，与瓦楞方向垂直的方向不耐压；而本实用新型能够承受双向抗压，即与瓦楞方向相同的方向、与瓦楞方向垂直的方向均耐压，而且本实用新型抗压性能更加均匀。
本实用新型如果采用波形瓦楞纸31相邻层直接粘接的这种方式，在比传统普通瓦楞纸抗压性能更好的情况下，能够至少减少一层芯纸层32的使用，这样能节省纸张，减轻纸板重量，节省材料成本、生产成本、运输成本，加快制造速度；在瓦楞粘接处所使用的粘接胶是需要通风干燥的，传统普通瓦楞纸只能沿着瓦楞方向(单一方向)通风使粘接胶快速干燥，而本实用新型虽然也是沿着瓦楞方向通风，但能够实现双向通风，故粘接胶的干燥速度更快，更均匀；此外，在瓦楞与瓦楞相粘接的位置会形成瓦楞与瓦楞相扣合的情形，瓦楞纸 板的粘接强度也就比传统的普通瓦楞纸板的粘接强度更大。比如：采用本实用新型所要保护的技术方案生产出的4层纸板比传统5层瓦楞纸板的抗压性能更好，材料成本、生产成本、运输成本都要更低，能够实现用更少的纸让纸板具有更大的抗压强度。
最后，本实用新型目前实验阶段已经完成，不管是在蛋糕领域，还是在快递纸箱领域，又或者是在纸托板领域，均比现有技术所采用的纸板在纸面内的抗压性能具有很大的技术优势。
本实用新型未经描述的技术特征可以通过或采用现有技术实现，在此不再赘述，当然，上述具体实施方式并非是对本实用新型的限制，本实用新型也并不仅限于上述具体实施方式，本技术领域的普通技术人员在本实用新型的实质范围内所做出的变化、改型、添加或替换，也应落入本实用新型的保护范围内。

Claims (8)

  1. 一种新型纸板包括上面纸层(1)、下面纸层(2)，其特征在于：还包括与上面纸层(1)、下面纸层(2)分别粘接的瓦楞纸层(3)，瓦楞纸层(3)包括2层以上的波形瓦楞纸(31)，波形瓦楞纸(31)相邻层的楞向十字交叉。
  2. 根据权利要求1所述的一种新型纸板，其特征在于：所述波形瓦楞纸(31)任一层的形状可为U形、V形或UV形。
  3. 根据权利要求2所述的一种新型纸板，其特征在于：所述波形瓦楞纸(31)任一层的规格可为A型、B型、C型、E型或F型。
  4. 根据权利要求3所述的一种新型纸板，其特征在于：所述波形瓦楞纸(31)相邻层之间粘接有芯纸层(32)。
  5. 根据权利要求3所述的一种新型纸板，其特征在于：所述波形瓦楞纸(31)相邻层直接粘接。
  6. 根据权利要求1至5任一项所述的一种新型纸板，其特征在于：所述波形瓦楞纸(31)为2层。
  7. 根据权利要求6任一项所述的一种新型纸板，其特征在于：所述波形瓦楞纸(31)楞的形状均为UV型。
  8. 根据权利要求7任一项所述的一种新型纸板，其特征在于：所述波形瓦楞纸(31)的规格均为B型。
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2092423U (zh) * 1991-04-05 1992-01-08 哈尔滨市纸制品厂 新结构双瓦楞纸箱纸板
CN2761418Y (zh) * 2004-12-30 2006-03-01 北京龙源一手新型建材科技有限公司 复合瓦楞板
WO2010112627A1 (es) * 2009-04-03 2010-10-07 Serigrafia Margi, S.L. Conjunto laminar formado por láminas de cartón ondulado
CN104108220A (zh) * 2014-07-02 2014-10-22 苏州正隆纸业有限公司 一种环保型瓦楞纸装饰纸板
CN109733040A (zh) * 2019-03-04 2019-05-10 宝艺新材料股份有限公司 X-ply型瓦楞纸板及其边压强度和侧压强度评估方法
CN110091569A (zh) * 2019-06-09 2019-08-06 山东太辉包装有限公司 一种新型纸板

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2092423U (zh) * 1991-04-05 1992-01-08 哈尔滨市纸制品厂 新结构双瓦楞纸箱纸板
CN2761418Y (zh) * 2004-12-30 2006-03-01 北京龙源一手新型建材科技有限公司 复合瓦楞板
WO2010112627A1 (es) * 2009-04-03 2010-10-07 Serigrafia Margi, S.L. Conjunto laminar formado por láminas de cartón ondulado
CN104108220A (zh) * 2014-07-02 2014-10-22 苏州正隆纸业有限公司 一种环保型瓦楞纸装饰纸板
CN109733040A (zh) * 2019-03-04 2019-05-10 宝艺新材料股份有限公司 X-ply型瓦楞纸板及其边压强度和侧压强度评估方法
CN110091569A (zh) * 2019-06-09 2019-08-06 山东太辉包装有限公司 一种新型纸板

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