CN114889300A - 一种瓦楞纸板及其加工工艺 - Google Patents

一种瓦楞纸板及其加工工艺 Download PDF

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CN114889300A
CN114889300A CN202210537362.9A CN202210537362A CN114889300A CN 114889300 A CN114889300 A CN 114889300A CN 202210537362 A CN202210537362 A CN 202210537362A CN 114889300 A CN114889300 A CN 114889300A
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hole
board
flame
foaming
retardant
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龚烨
许忠
施娟
宋丽
陈辉
戴言宏
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Shanghai Xiang Drawing Products Co ltd
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Shanghai Xiang Drawing Products Co ltd
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Abstract

本申请涉及瓦楞纸板领域，具体公开了一种瓦楞纸板，包括第一板以及第二板，所述第一板与第二板之间设置有波浪筋，所述波浪筋将第一板与第二板形成的空腔分隔呈若干个第一孔和第二孔，所述第一孔与第二孔的内腔内均复合有塑胶膜，上述方案中，瓦楞纸板不仅能具有隔绝水汽的功效，同时增强了波浪筋的韧性，更加使得整个纸板难以被穿透损坏，提升了整个纸板的强度。

Description

一种瓦楞纸板及其加工工艺
技术领域
本申请涉及瓦楞纸板领域，尤其是涉及一种瓦楞纸板及其加工工艺。
背景技术
瓦楞纸是人们生活中常见的纸品，其多用于制造瓦楞纸纸箱，尤其是在快递行业快速发展的当今，整个行业对瓦楞纸纸箱的需求量越来越大。
随着人们生活水平的提高，人们对于整个快递行业的要求也是越来越高，其中人为最为关心的就是自己的包裹是否产生破损，纸箱内的物品是否损坏，而快递行业所采用的最多的便是瓦楞纸箱。
目前的瓦楞纸多由再生废纸作为原料加工制造而成，其抗压性和强度比利用木浆制造的瓦楞纸差很多，当采用该瓦楞纸制成瓦楞纸纸箱后，瓦楞纸纸箱会存在抗压性和强度差的缺点。
发明内容
为了提升瓦楞纸板的结构强度，本申请提供一种瓦楞纸板及其加工工艺。
第一方面，本申请提供的一种瓦楞纸板，采用如下的技术方案：
一种瓦楞纸板，包括第一板以及第二板，所述第一板与第二板之间设置有波浪筋，所述波浪筋将第一板与第二板形成的空腔分隔呈若干个第一孔和第二孔，所述第一孔与第二孔的内腔内均复合有塑胶膜。
通过采用上述技术方案，波浪筋增强了整个纸板的连接强度，使得第一板与第二板之间难以被压缩，同时在第一孔与第二孔的内腔侧壁上复合塑胶膜，不仅能具有隔绝水汽的功效，同时增强了波浪筋的韧性，更加使得整个纸板难以被穿透损坏，提升了整个纸板的强度。
可选的，所述第一孔与第二孔的内径为1mm，所述第一孔与第二孔的开口朝向呈相反设置，所述第一孔与第二孔内均填充有发泡层。
通过采用上述技术方案，通过填充发泡层，使得第一板与第二板之间具有弹性，同时增加第一板与第二板之间的密实性。
可选的，所述发泡层内混合有阻燃颗粒，所述阻燃颗粒的直径0.3mm，所述阻燃颗粒与发泡层混合形成弹性阻燃层。
通过采用上述技术方案，增加阻燃颗粒不仅能提升整个纸板的密实性以及强度，同时阻燃颗粒在遇到明火时可膨胀，从而进一步挤缩第一孔以及第二孔的孔隙，使得第一板与第二板之间难以发生火焰传播，整个纸板起到良好的阻燃特性。
可选的，所述阻燃颗粒为膨胀橡胶，所述发泡层为EVA发泡材料。
通过采用上述技术方案，EVA发泡材料为密闭泡孔结构，不吸水且防潮，耐水性良好，且回弹性和抗张力高，膨胀橡胶遇到明火高温会挤缩第一孔与第二孔的孔内腔空间，使得第一板与第二板之间的火势难以传递，达到良好的防火效果。
第二方面，本申请提供的一种瓦楞纸板的加工工艺，采用如下的技术方案：
一种瓦楞纸板的加工工艺，包括以下步骤：
分层制造，预先生产出所需的第一板、第二板以及波浪筋；
热压复合，将第一板、第二板以及夹持在第一板与第二板之间的波浪筋通过胶水热压复合；
弹性阻燃层制作，在发泡机的出料口加入阻燃颗粒，并通过泵送方式充入第一孔与第二孔内；
热固定型，将多个填充完发泡材料的纸板夹持在滚塑机上旋转，并将整个纸板以及金属框放置在干燥室内调温烘干。
通过采用上述技术方案，预先分层制造出第一板、第二板以及波浪筋，然后通过复合机，使得三个板材相互粘合，同时在波浪筋的两侧复合成型有塑胶膜，对复合成型的纸板通过发泡机，向第一孔以及第二孔内填充发泡材料以及阻燃颗粒，最终再通过热固定型，使得整个纸板成型稳定。
可选的，在热压复合步骤中，采用防水胶热压复合，复合完成后烘箱内静置1小时，最终挑选试样进行复合强度测试。
通过采用上述技术方案，使得整个纸板具有良好的防水特性，整个纸板可在潮湿环境下使用的时间更加长。
可选的，在弹性阻燃层制作的过程中，通过螺旋输送机向发泡机的出料管内送料，发泡材料与阻燃颗粒的体积比为3:1。
通过采用上述技术方案，在输送发泡材料的同时通过螺旋输送机定量加入阻燃颗粒，阻燃颗粒一方面提升整个纸板的密实性，另一方面提升了整个板材的阻燃特性。
可选的，在热固定型步骤中，干燥室内的温度设置为60摄氏度，干燥时间为1小时。
通过采用上述技术方案，发泡材料凝固的更加稳定，使得整个纸板定型的更加稳定。
综上所述，本申请包括以下至少一种有益技术效果：
1. 波浪筋增强了整个纸板的连接强度，塑胶膜，不仅能具有隔绝水汽的功效，同时增强了波浪筋的韧性，更加使得整个纸板难以被穿透损坏，提升了整个纸板的强度。
2. 弹性阻燃层不仅能提升整个纸板的密实性以及强度，同时阻燃颗粒在遇到明火时可膨胀，从而进一步挤缩第一孔以及第二孔的孔隙，使得第一板与第二板之间难以发生火焰传播，整个纸板起到良好的阻燃特性。
附图说明
图1是本实施例中瓦楞纸板的截面示意图。
图2是本实施例中瓦楞纸板的加工流程框图。
附图标记：
1、第一板；2、第二板；3、波浪筋；4、第一孔；5、第二孔；6、塑胶膜；7、弹性阻燃层；
S1、分层制造；S2、热压复合；S3、弹性阻燃层制作；S3、热固定型。
具体实施方式
以下结合附图1-2对本申请作进一步详细说明。
第一方面，本申请实施例公开一种瓦楞纸板。
参照图1，一种瓦楞纸板，包括第一板1和第二板2,第一板1和第二板2之间设置有波浪筋3，波浪筋3与第一板1和第二板2的材质相同，波浪筋3沿着自身长度呈波浪形，预先通过喷涂的方式在波浪筋3的外侧喷涂塑胶溶液，使得波浪筋3的外侧成型有一层塑胶膜6，塑胶膜6最优设置为PE材质或者聚氨酯材质。
参照图1，波浪筋3通过防水胶，波浪筋3的若干个波谷的尺寸相等,每一波谷中半圆弧的内径为1mm。波浪筋3将第一板1与第二板2之间的空间分割呈若干个第一孔4和第二孔5,第一孔4与第二孔5的尺寸相等,第一孔4的内径为1mm，第一孔4与第二孔5的开口朝向呈相反设置。
参照图1，第一孔4与第二孔5内填充有EVA材质的发泡材料，将EVA发泡原料通过发泡机灌注在第一孔4和第二孔5内，在灌注发泡材料的过程中，同时在发泡机送料管出口的位置，通过螺旋输送机向管内输送为膨胀橡胶材质的阻燃颗粒，阻燃颗粒的直径最优设置为0.3mm，发泡材料与阻燃颗粒混合体积比例设置为3:1，从而单个第一孔4内四分之三的材质为发泡材料。四分之一为阻燃颗粒，阻燃颗粒与发泡材料混合后填充在第一孔4以及第二孔5内，从而阻燃颗粒与发泡层混合形成弹性阻燃层7。最终发泡完成后，等待整个板材凝固成型即可。
第二方面，本申请实施例公开一种瓦楞纸板的加工工艺。
参照图1和图2，一种瓦楞纸板的加工工艺，用于制造上述实施例中的瓦楞纸板，主要包括以下步骤：
S1、分层制造，预先通过模压机设备以及裁切设备成型出所需的第一板1、第二板2以及波浪筋3，波浪筋3在制造的过程中通过辊压的形式生产，最终定型呈波浪形的纸板，第一板1的厚度与第二板2的厚度相等，波浪筋3的厚度为第一板1的四分之三厚。波浪筋3制造成型后，通过喷涂设备，在波浪筋3的两侧喷涂一层厚度为0.2mm厚的聚氨酯胶膜，最终等待胶膜凝固成型即可。
S2、热压复合，将已经成型的第一板1、第二板2以及波浪筋3进行热压复合，热压复合的过程中，预先在第一板1以及第二板2的相对侧壁上涂刷防水胶，防水胶优先选用粘接力大于3mpa的防水胶，然后通过复合机，使得波浪筋3夹持在第一板1与第二板2之间，并使得三者相互粘合。整个复合的过程中，复合完成后最优在烘箱温度为60度的空腔内静置一小时，使得第一板1、波浪筋3以及第二板2可以充分融合。充分粘连后，选取其中一个作为试样，并将样品放置在测试机上，测试粘连的强度是否大于4mpa、以及粘连的完整性。
等待上述的试样复合检测标准后，进行步骤S3、弹性阻燃层7制作，通过在发泡机内添加EVA发泡材料，并在发泡机的出料管后处加装小型螺旋输送机，向螺旋输送机的料斗内添加直径为3mm阻燃颗粒，阻燃颗粒的材质最优设置为膨胀橡胶，控制发泡机的出料速度与螺旋输送机的输送速度为3:1，每一瓦楞纸板的第一孔4以及第二孔5内均注射有混合的弹性阻燃层7，最终实现每一第一孔4或第二孔5内中发泡材料与阻燃颗粒的体积比为3:1。
上述步骤完成后，进行步骤S4、热固定型，将填充完发泡材料完成的板材，堆叠夹装在滚塑机的金属框内，并将整个金属框放置在干燥室内，干燥室内的温度设置为60摄氏度，干燥的时间为1个小时，通过热固定型步骤，使得整个纸板的应力充分释放，并且第一板1、第二板2以及波浪筋3和弹性阻燃层7四者之间粘合的更加稳固。
以上均为本申请的较佳实施例，并非依此限制本申请的保护范围，故：凡依本申请的结构、形状、原理所做的等效变化，均应涵盖于本申请的保护范围之内。

Claims (8)

1.一种瓦楞纸板，其特征在于：包括第一板(1)以及第二板(2)，所述第一板(1)与第二板(2)之间设置有波浪筋(3)，所述波浪筋(3)将第一板(1)与第二板(2)形成的空腔分隔呈若干个第一孔(4)和第二孔(5)，所述第一孔(4)与第二孔(5)的内腔内均复合有塑胶膜(6)。
2.根据权利要求1所述的一种瓦楞纸板，其特征在于：所述第一孔(4)与第二孔(5)的内径为1mm，所述第一孔(4)与第二孔(5)的开口朝向呈相反设置，所述第一孔(4)与第二孔(5)内均填充有发泡层。
3.根据权利要求2所述的一种瓦楞纸板，其特征在于：所述发泡层内混合有阻燃颗粒，所述阻燃颗粒的直径0.3mm，所述阻燃颗粒与发泡层混合形成弹性阻燃层(7)。
4.根据权利要求1所述的一种瓦楞纸板，其特征在于：所述阻燃颗粒为膨胀橡胶，所述发泡层为EVA发泡材料。
5.一种瓦楞纸板的加工工艺，所述的加工工艺用于生产如权利要求1-4任一一项所述的瓦楞纸板，其特征在于，包括以下步骤：
分层制造，预先生产出所需的第一板(1)、第二板(2)以及波浪筋(3)；
热压复合，将第一板(1)、第二板(2)以及夹持在第一板(1)与第二板(2)之间的波浪筋(3)通过胶水热压复合；
弹性阻燃层(7)制作，在发泡机的出料口加入阻燃颗粒，并通过泵送方式充入第一孔(4)与第二孔(5)内；
热固定型，将多个填充完发泡材料的纸板夹持在滚塑机上旋转，并将整个纸板以及金属框放置在干燥室内调温烘干。
6.根据权利要求5所述的一种瓦楞纸板的加工工艺，其特征在于：在热压复合步骤中，采用防水胶热压复合，复合完成后烘箱内静置1小时，最终挑选试样进行复合强度测试。
7.根据权利要求5所述的一种瓦楞纸板的加工工艺，其特征在于：在弹性阻燃层(7)制作的过程中，通过螺旋输送机向发泡机的出料管内送料，发泡材料与阻燃颗粒的体积比为3:1。
8.根据权利要求5所述的一种瓦楞纸板的加工工艺，其特征在于：在热固定型步骤中，干燥室内的温度设置为60摄氏度，干燥时间为1小时。
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