CA多少钱一公斤？
这个问题一搜，从二十五块一公斤到八十块一公斤，报价差得比醋酸含量还多。有人说我买的二十五的国产通用用得挺好，有人说我买的八十的进口高透明才叫高端。到底差在哪？
说实话，问CA多少钱一公斤的人，大概率还没搞懂CA这东西不是一个料——通用级、高透明级、高流动级、耐热级、医用级，每个分支价格都不一样。你拿通用级的价和医用比，那不叫比价，叫被忽悠。
CA就是醋酸纤维素，由纤维素经醋酸酯化制得，高透明、易加工、生物相容，常用于眼镜架、工具手柄、薄膜、包装、医疗。
一、主流牌号报价（外企+中企）
先把市面上走量的牌号和参考价摆出来。以下为近期市场参考价，实时价格以当日询价为准。
进口CA（外企大厂）
通用级，参考价约40-60元/公斤。眼镜架、工具手柄、薄膜。
高透明级，参考价约50-70元/公斤。高端包装、展示用品、特殊应用。
医用级，参考价约60-80元/公斤。医疗耗材、药品包装、特殊应用。
国产CA（中企大厂）
通用级，参考价约25-45元/公斤。性价比高，眼镜架、工具手柄、薄膜。
高透明级，参考价约35-55元/公斤。高端包装、展示用品、特殊应用。
高流动级，参考价约40-60元/公斤。薄壁制品、复杂结构件、特殊应用。
一句话总结：国产通用25-45块，国产高透明/高流动35-60块，进口通用40-60块，进口高透明/医用50-80块。你要的是啥醋酸含量和性能，决定了你该在哪一档选。
二、同是CA，价差凭什么这么大
CA的价格差，主要藏在四个地方。
第一，醋酸含量不同。低醋酸便宜，高醋酸贵。醋酸含量越高，透明度和耐热性越好，但价格更高。
第二，透明等级不同。通用级便宜，高透明级贵。高透明需要特殊工艺，价格更高。
第三，用途不同。通用级便宜，医用级贵。特殊用途需要特殊认证，价格更高。
第四，品牌和产地。进口溢价高但批次稳定，国产性价比高但牌号少。同样是高透明级，进口比国产贵30-50%，贵的是品控和研发。
三、采购避坑：别让醋酸含量骗了你
我见过太多采购，比价比到最后选了最便宜的二十五的，然后做出来的制品透明差、有异味、客户退货，一次损失够买半年的好料。
CA采购这行，水比你想的深。三个坑必须绕开：
第一，看透光率和醋酸含量不看牌号。同一个牌号不同批次性能可能波动，拿到料先测透光率和醋酸含量，和COA对得上再用。别听销售说"差不多"，差不多就是差很多。
第二，警惕以次充好。有些贸易商拿CA再生料当新料卖，拿低醋酸当高醋酸卖。要COA、要醋酸含量检测、要原厂包装，三证合一才敢用。
第三，别只比单价，算综合成本。A料单价25块，做出来制品次品率5%；B料单价45块，次品率1%。算到每件制品上，B料反而更便宜。
四、标准牌号满足不了？看看改性方案
如果你发现标准牌号怎么选都差点意思——比如要高透明又要高耐热、要生物相容又要高流动、要低成本又要医用级——那不是CA的问题，是你需要的不是标准CA，是改性CA。
这时候可以看看宁波科隆新材目前在做的高性能改性CA方案，玻纤增强、阻燃、耐候、导电这些方向都有对应牌号在做。有特殊需求的可以私信要一份改性CA的报价参考，比自己买基料再加助剂调试，省的不只是钱，还有试错的时间。
说白了，标准料是大锅饭，改性料是定制菜。你的制品要求越高，越需要定制。
五、常用牌号，私信给你当日报价
上面的价格都是参考价，CA行情一天一个样，纤维素、醋酸、催化剂、纯度提纯剂、汇率都在动。
如果你需要进口、国产这些品牌的具体牌号当日报价，私信我，发你一份实时价格表。不绕弯子，报实数。
写在最后
买CA这事儿，二十五的和八十的，差的不是五十五。
单价是门槛，选对醋酸含量和性能才是底线。别让报价单上的数字迷惑了你——你买的不是一公斤塑料，是一公斤能做出高透明眼镜架的方案。把账算到每件制品上，再加上次品退货损失，你才知道谁真便宜谁真贵。
你在CA采购上踩过什么坑？是透明差还是有异味？评论区聊聊，点赞最高的三位，送一份CA主流牌号选型对照表。
CA和醋酸纤维素有什么区别
CA醋酸含量怎么选
CA和CAB有什么区别
CA改性料厂家怎么选
CA加工常见问题及解决
How much is CA per kilogram?
A quick search shows quotes ranging from CNY 25/kg to CNY 80/kg — a spread wider than the acetate content itself. Some buyers say the CNY 25 domestic general-purpose grade works fine; others insist only the CNY 80 imported high-transparency grade counts as premium. Where does the difference really lie?
Honestly, anyone asking "how much is CA per kilo" probably has not yet understood that CA is not a single material — general-purpose, high-transparency, high-flow, heat-resistant and medical grades each carry a different price. Comparing a general-purpose quote with a medical grade is not price comparison; it is how you get fooled.
CA is cellulose acetate, produced by esterifying cellulose with acetic acid. It offers high transparency, easy processing and biocompatibility, and is commonly used in eyeglass frames, tool handles, film, packaging and medical applications.
1. Mainstream grade quotes (imported + domestic)
Here are the high-volume grades and reference prices on the market. Figures below are recent market references; live prices are subject to same-day inquiry.
Imported CA (overseas majors)
General-purpose grade, approx. CNY 40-60/kg. Eyeglass frames, tool handles, film.
High-transparency grade, approx. CNY 50-70/kg. Premium packaging, display products, special applications.
Medical grade, approx. CNY 60-80/kg. Medical consumables, pharmaceutical packaging, special applications.
Domestic CA (Chinese majors)
General-purpose grade, approx. CNY 25-45/kg. Cost-effective; eyeglass frames, tool handles, film.
High-transparency grade, approx. CNY 35-55/kg. Premium packaging, display products, special applications.
High-flow grade, approx. CNY 40-60/kg. Thin-wall parts, complex structural parts, special applications.
In short: domestic general-purpose CNY 25-45, domestic high-transparency/high-flow CNY 35-60, imported general-purpose CNY 40-60, imported high-transparency/medical CNY 50-80. The acetate content and performance you need decide which tier you belong in.
2. Why do CA prices differ so much
The CA price gap mainly hides in four factors.
First, acetate content. Low acetate is cheap; high acetate costs more. The higher the acetate content, the better the transparency and heat resistance, but the higher the price.
Second, transparency grade. General-purpose is cheap; high-transparency is expensive. High transparency needs special processing and costs more.
Third, application. General-purpose is cheap; medical grade is expensive. Special applications need special certifications and cost more.
Fourth, brand and origin. Imports carry a premium but offer batch stability; domestic grades offer value but fewer options. For the same high-transparency grade, imported costs 30-50% more than domestic — you pay for quality control and R&D.
3. Procurement pitfalls: don't let the acetate content fool you
I have seen too many buyers end up choosing the cheapest CNY 25 material after endless price comparison, only to have parts fail on transparency and odor, trigger customer returns — one loss enough to buy half a year of good material.
Procurement of CA is deeper water than you think. Three traps must be avoided:
First, test light transmittance and acetate content instead of trusting the grade name. Performance of the same grade can fluctuate between batches. Test against the COA before use. Don't listen to salespeople saying "close enough" — close enough is far apart.
Second, watch out for substitution fraud. Some traders sell recycled CA as virgin, or low-acetate as high-acetate. Demand the COA, an acetate-content test and original packaging. Only accept material with all three.
Third, don't compare unit price alone — calculate total cost. Material A at CNY 25/kg yields a 5% defect rate; material B at CNY 45/kg yields 1%. Per finished part, B is actually cheaper.
4. Standard grades not enough? Consider modified compounds
If standard grades always fall short — you need high transparency AND high heat resistance, biocompatibility AND high flow, or low cost AND medical grade — the problem is not CA itself; you don't need standard CA, you need modified CA.
Ningbo Kolong New Materials is developing high-performance modified CA solutions, with grades covering glass-fiber reinforcement, flame retardancy, weather resistance and conductivity. For special needs, message us for a modified CA quote reference — it saves not only money but also trial-and-error time compared with buying base resin and tuning additives yourself.
In plain terms: standard grades are a big pot of shared rice; modified compounds are a dish cooked to order. The higher your requirements, the more you need customization.
5. Popular grades — same-day quotes via message
All prices above are references. CA prices change daily — cellulose, acetic acid, catalysts, purification agents and exchange rates all move.
If you need same-day quotes for specific imported or domestic grades, message us and we will send a live price sheet. No beating around the bush — real numbers.
Final words
For CA, the difference between CNY 25 and CNY 80 is not CNY 55.
Unit price is the threshold; choosing the right acetate content and performance is the baseline. Don't let the quote sheet fool you — you are not buying one kilogram of plastic, you are buying a solution for making high-transparency eyeglass frames. Do the math per finished part, add in the loss from rejected goods, and you will know who is truly cheap and who is truly expensive.
What pitfalls have you hit when buying CA — poor transparency or odor? Share in the comments; the three most-liked readers will receive a CA grade selection guide.
