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第七百六十七章 造纸术扩大实验(三)(2 / 2)

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药品是从草木灰溶液中煮出的碱粉,负责分发碱粉的百夫长手里拿着个小竹筒和一个小勺子,每走到一个位置,百夫长用小勺子装满一整筒碱粉,然后全部倒进大瓮里。

依靠此方法,每一处都放了相同数量的碱。

良久之后,材料,水,药品,全部发放完毕,一声令下,民夫依令生起了火,开始熬煮纸浆。

在造纸工艺中,纸浆蒸煮的程度也影响成纸的质量,煮的时间久,纤维散的充分,纸浆质量就好,纸的质量也就更好。

此一处,又是难以统一把控的点。

柴火烧起来,柴多了少了,柴湿了干了,柴离的远了近了,风大了小了,都影响火力,从而影响蒸煮效果。

要是有电磁炉,要是有煤气灶,火力很好控制,可现在,只有柴火,火候难以把控,故,只能几百个人同时劳作,同时开始蒸煮,同时停止,以尽可能减少误差。

要说,在此汉末,有无精确控制火力的方法,答桉是有的。

火力不好控制的根源在于,柴火质量不好控制,既然柴火质量不好控制,那就不用柴火了,可以用酒精灯。

李孟羲清楚的知道,如果做上十盏大小相同酒精灯,再用上粗细相同的灯芯,再用上烈度相同的酒精,那么立刻,就能有了十个火力一致的热源。

可,酒精太贵了,拿来当热源,拿来造纸,简直暴遣天物。

李孟羲四处巡视着,一只只大瓮中,煮着各种各样的草木碎末,从外观上,已经无法区分碎末本来的所属的种类,在民夫们身后的大筐子里,每一只筐子中都放着一张写着明目的纸片,名目标准清晰,就不存在混淆的可能。

熬煮纸浆的过程势必漫长,几百人在城外煮了一整天,到傍晚之时,李孟羲发现,纸浆仍未煮好,没煮好的那些多是树皮一类,树皮坚韧,经煮不散。

不得已,只能继续熬煮。

入夜,到过了夜晚,到翌日天亮,煮了一天又一夜,纸浆终于煮好了。

因草木材料未完全晒干就直接开煮,好多纸浆煮都带点绿了吧唧的颜色。

随后,拿麻布把纸浆过滤数遍去除掉固体杂质,再拿活性炭吸附去色素,经这两步处理,纸浆外观大改,变得清澈干净了许多。

最重要的一步到了,这几百份纸浆样品,需要制作出几百种纸张样品,稍微的差错都不能有。

李孟羲和百夫长四处巡视着,场下的几百名民夫们按照要求,先是草草做了几张纸,这先做的几张纸丢弃不用,接着,正式开始做纸的时候,民夫们按要求,拿着铁管装了满满一管纸浆倒在了抄网上,所有民夫手里都有一个巴掌大小一模一样的刮板,民夫们拿着刮板,小心翼翼的把纸张在抄网上摊开抹平。

此一步,需要极其精准极其细微,一旦有人操作不当,紧紧盯着的百夫长们会立刻出声制止。

此次测试,目的是为了从数百种草木材料中找出最优质的那些材料,因为样本数目庞大,所以对比测试的量就极其庞大,连带着,测试消耗量随之大为增多。

这就需要,每一个样本,需要做纸数百张以上才够测试之用。

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