CN107383540A - 一种环保纸成型工艺 - Google Patents

一种环保纸成型工艺 Download PDF

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CN107383540A
CN107383540A CN201710690463.9A CN201710690463A CN107383540A CN 107383540 A CN107383540 A CN 107383540A CN 201710690463 A CN201710690463 A CN 201710690463A CN 107383540 A CN107383540 A CN 107383540A
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environment protecting
protecting paper
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任哲东
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Huanren Guang Xin Technology Co Ltd
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Abstract

本发明公开了一种环保纸成型工艺，它涉及纸张生产技术领域。本发明将碳酸钙粉、钛白粉、滑石粉等矿物粉体与树脂颗粒、偶联剂、润滑剂等助剂混合，在高温、高压、高剪切力的工艺条件下，使混合料达到熔融状态，再经过4‑6根压延辊的连续剪切碾压、拉伸、冷却定型后，制造出表面平滑度高、强度好的压延环保纸。本发明避免了通过螺杆热塑性挤出再吹塑或通过T型模头流延制备环保纸导致的分散不均、产品厚薄公差大、表面粗糙的缺陷。采用一次成型加工，能耗更低，制造过程无“三废”排放，符合环保要求，产品品质更佳、适用性更广、适合于规模化生产。

Description

一种环保纸成型工艺
技术领域
本发明涉及的是纸张生产技术领域，具体涉及一种环保纸成型工艺。
背景技术
目前国际国内已经发明出多种合成纸、环保纸、钙塑纸等材料，其主要是以单层或多层挤出，再经O型模成型的吹膜法或T型模头成型的流延法进行生产制造，其产品虽然可进行印刷并替代极少部分纸张使用，但还是由于产品厚薄均匀度不好、表面平滑度不高等主要原因，导致产品无法满足高端精致印刷要求，而无法规模化应用。
综上所述，本发明设计了一种能够生产出品质更佳的环保纸成型工艺。
发明内容
针对现有技术上存在的不足，本发明目的是在于提供一种环保纸成型工艺，避免了通过螺杆热塑性挤出再吹塑或通过T型模头流延制备环保纸导致的分散不均、产品厚薄公差大、表面粗糙的缺陷。采用一次成型加工，能耗更低，制造过程无“三废”排放，符合环保要求，产品品质更佳、适用性更广、适合于规模化生产。
为了实现上述目的，本发明是通过如下的技术方案来实现：一种环保纸，由以下重量配比的原料组成：碳酸钙粉40%-60%，钛白粉2%-4%、氧化锌2%-4%、硫酸钡粉2%-4%，滑石粉2%-4%、硅微粉2%-4%、云母粉2%-4%，PE15%-35%、PP 20%-40%， 偶联剂0.1%-2%、润滑剂0.1%-2%、发泡剂0.1%-2%、抗静电剂0.1%-2%、抗氧剂0.1%-2%。
一种环保纸成型工艺，包括以下步骤：1、将碳酸钙粉、钛白粉、滑石粉等矿物粉体与树脂颗粒、偶联剂、润滑剂等助剂混合，在170-190℃的高温、高压、高剪切力的工艺条件下，使原料充分混合达到熔融状态；2、再经过以逆L型排列的4-6根高精度压延辊的连续剪切碾压，加工温度始终保持在160℃-190℃，然后再经过3-5跟牵引拉伸成型辊拉伸成型，其拉伸速比呈阶梯排列在5%-8%之间；3、最后再经过15-20根冷却轮组进行冷却定型。
本发明具有以下有益效果：
1、本发明的环保纸成型工艺所制造的环保纸，具有厚薄均匀度好、表面平滑度高、强度高、耐酸碱及有机溶剂、无有毒有害物质缓慢释放的特点，适合于胶印、凹印、柔印、烫金、UV等多种印刷方式，同时又具有可吸塑拉伸变形性。
2、本发明的环保纸成型工艺所制造的环保纸，使用完毕后可进行回收并二次使用，若未回收而作为废弃物焚烧处理，燃烧时亦不会产生黑烟和其他有害气体，燃烧后残余物为粉末状无机矿粉，也不会造成环境无污染。
附图说明
下面结合附图和具体实施方式来详细说明本发明；
图1为本发明的工艺结构图。
具体实施方式
为使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解，下面结合具体实施方式，进一步阐述本发明。
参照图1，本具体实施方式采用以下技术方案：一种环保纸，由以下重量配比的原料组成：碳酸钙粉40%-60%，钛白粉2%-4%、氧化锌2%-4%、硫酸钡粉2%-4%，滑石粉2%-4%、硅微粉2%-4%、云母粉2%-4%，PE15%-35%、PP 20%-40%， 偶联剂0.1%-2%、润滑剂0.1%-2%、发泡剂0.1%-2%、抗静电剂0.1%-2%、抗氧剂0.1%-2%。
本工艺包括逆L型4-6根高精度压延辊的连续剪切碾压工艺，其加工温度在160℃-190℃，3-5跟牵引拉伸成型辊成型，其拉伸速比呈阶梯排列在5%-8%之间；该工艺所生产环保纸具有厚薄均匀度好、表面平滑度高、强度高、耐酸碱及有机溶剂、无有毒有害物质缓慢释放的特点，适合于胶印、凹印、柔印、烫金、UV等多种印刷方式，同时又具有可吸塑拉伸变形性。
本发明涉及环保纸的双面平滑度均大于2500s，双向厚薄偏差范围如下：
本具体实施方式的环保纸成型工艺，将碳酸钙粉、钛白粉、滑石粉等矿物粉体与树脂颗粒、偶联剂、润滑剂等助剂混合，在高温、高压、高剪切力的工艺条件下，使混合料达到熔融状态，再经过4-6根压延辊的连续剪切碾压、拉伸、冷却定型后，制造出表面平滑度高、强度好的压延环保纸。
以上显示和描述了本发明的基本原理和主要特征和本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (2)

1.一种环保纸，其特征在于，由以下重量配比的原料组成：碳酸钙粉40%-60%，钛白粉2%-4%、氧化锌2%-4%、硫酸钡粉2%-4%，滑石粉2%-4%、硅微粉2%-4%、云母粉2%-4%，PE15%-35%、PP 20%-40%，偶联剂0.1%-2%、润滑剂0.1%-2%、发泡剂0.1%-2%、抗静电剂0.1%-2%、抗氧剂0.1%-2%。
2.一种环保纸成型工艺，其特征在于，包括以下步骤：1、将碳酸钙粉、钛白粉、滑石粉等矿物粉体与树脂颗粒、偶联剂、润滑剂等助剂混合，在170-190℃的高温、高压、高剪切力的工艺条件下，使原料充分混合达到熔融状态；2、再经过以逆L型排列的4-6根高精度压延辊的连续剪切碾压，加工温度始终保持在160℃-190℃，然后再经过3-5跟牵引拉伸成型辊拉伸成型，其拉伸速比呈阶梯排列在5%-8%之间；3、最后再经过15-20根冷却轮组进行冷却定型。
CN201710690463.9A 2017-08-14 2017-08-14 一种环保纸成型工艺 Pending CN107383540A (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101659770A (zh) * 2009-09-05 2010-03-03 常州金卡基材有限公司 阻燃合成纸
CN102634116A (zh) * 2012-04-26 2012-08-15 昆明钢铁控股有限公司 阻燃环保石头纸的基纸及其制备方法
CN104610628A (zh) * 2013-11-05 2015-05-13 代成文 一种环保型合成石头纸的制备方法
CN105440413A (zh) * 2015-12-24 2016-03-30 浙江华川实业集团有限公司 一种环保型石头纸及其制备方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101659770A (zh) * 2009-09-05 2010-03-03 常州金卡基材有限公司 阻燃合成纸
CN102634116A (zh) * 2012-04-26 2012-08-15 昆明钢铁控股有限公司 阻燃环保石头纸的基纸及其制备方法
CN104610628A (zh) * 2013-11-05 2015-05-13 代成文 一种环保型合成石头纸的制备方法
CN105440413A (zh) * 2015-12-24 2016-03-30 浙江华川实业集团有限公司 一种环保型石头纸及其制备方法

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Application publication date: 20171124