手工?板料?賽璐珞? - 眼鏡
By Jacky
at 2011-12-02T01:17
at 2011-12-02T01:17
Table of Contents
最近看到有些事件又把板料、賽璐珞、手工這種事情又拿出來講
心中難免有所疑惑並查詢了一下
發現現在在網路上的消息大部分還是過度的站在店家端,
想了很久覺得應該也要把自己知道的寫出來;
雖說不可能百分之百正確但至少希望看能不能達到些資訊平衡的效果。
現在手工跟板料這個詞已經被濫用了,賽璐珞更是被眼鏡界奉為有如
神主牌般珍貴的料。
就讓我以我個人的觀點來一一解構這些文字的邏輯及謬誤吧~
一、手工
去除掉全自動流程,需以人力為標準進行生產作業之程序。
也就是說以廣義來講這世界上仍有很多製品都是手工的,
若我說只要有QC就一定有人,商人隨便說是手工職人做的,
賣你貴一點他根本都不會心虛!但其實作法跟寶島賣的自動化流程
做出來的膠框根本沒兩樣,所以建議只能相信品牌;
也因為如此所以職人的名稱、名氣相對的重要,除非親眼所見,
否則不要被手工這種這字眼迷惑,請先做好功課哪些店家ok
或是哪些品牌是日皮台骨再來;
沒有聽過的職人名稱或許只是被不肖(台灣?)商家隨便捏造個聽來
很有風骨的人名,來燙印在鏡框上唬人的伎倆;
所以請不要再被商人以"手造"或"謹製"這種詞句迷惑了。
二、板料
在塑化界板料這個詞就指是一塊任意成分『板狀的塑料』,僅此而已。
只是被大部分眼鏡界的人特定指為醋酸纖維的俗稱,
但必須釐清的是醋酸纖維除了做成板狀的塑料後,再由職人加工製成
眼鏡以外,也可以填充並經由射出成型機進行自動化膠框的生產;
而賽璐珞手工眼鏡其實也是先做成板狀的塑料再經由職人加工,
只是賽璐珞的名稱來由比較久且響亮所以幾乎沒有人稱賽璐珞板為板料,
而醋酸纖維名稱太化學感又難記,所以商家用比較通俗的名稱代稱之;
但請各位試想,其實賽璐珞也是塑料的一種,從投影片、墊板、
乒乓球都是以賽璐珞為材料製作的,為何不能拿來做眼鏡?因為不是板料。
所以手工眼鏡要堅硬、抗變形度大進而耐用,都是因為使用板料製作
的緣故,板料是職人製作手工眼鏡的必須原料。
以後醋酸纖維還是回歸為Acetate或アセテート,別再用板料這種模糊的名稱了。
三、賽璐珞
明明主要禁用於製作玩具還有一堆管制規範而已,並沒任何資料
可指出有全世界禁用這回事,還有它跟醋酸纖維一樣是化學合成品,
並不是天然原料;
另外請注意,它是熱塑性樹脂,所以可以簡單加熱成型,
何來難以曲折加工不易之說!
再來就是不再被業界愛用的原因是因為溫度可控制範圍太小,
而且太容易引發火災所以被逐漸被其他安定性與穩定性更高的
合成樹脂取代而被主流市場淘汰,只是因為觸感較佳所以仍然被
小量採用在鋼筆與眼鏡等貼身物品的製作上;
還有,賽璐珞本身就是個不安定成分,由於受到日光於氧氣的影響,
纖維與硝酸會分解劣化,基本上是無法長期保存的,而且在分解中
會產生強酸,會腐蝕金屬,這也可能鏡腳不入芯的原因之一?
中文讀法常常在璐跟珞的字上有所錯誤,主要正確用字應是賽璐珞,
或是直接用Celluloid或セルロイド比較方便。
綜合以上三點,手工眼鏡的好壞除了從職人品牌判定以外
應該就是板料的品質了,是不是用良好的板料製作出來的框?
我想最簡單的判定法就是抗撓性(抗變形度);
小小的扭一下應該就可以輕易分辨出來,好的板料與射出成型或
一般板料的差異就是,好的板料有較高的密度,所以比較不容易變形;
另外用指甲輕敲一下眼鏡,密度較高的材質會有比較清脆的聲音,
比較鬆散的就會比較鈍一點,不過這就要多敲才知道了。
最後關於手工框的部份,我想說的是不管原料是用醋酸纖維或是
賽璐珞的板料,只要職人使用良好的板料設計出良好的框型與用心
的加工處理細心打磨製做出來的就是好框。
以上純為個人想法,我只是想把事情搞清楚而已,並不想要再被
似是而非的店家資訊給誤導了。
原文連結:http://tw.myblog.yahoo.com/yang-wenli/article?mid=2363
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