As an expert in the field of material science with a focus on absorbent materials, I can explain the factors that contribute to the absorbency of paper towels.

Absorbency in paper towels is primarily determined by the structure and composition of the fibers used, as well as the manufacturing process. Here are the key factors:


1. Fiber Type: Paper towels made from a blend of hardwood and softwood pulp tend to be more absorbent than those made from pure softwood or hardwood. Hardwood fibers are known for their strength, while softwood fibers are more absorbent.


2. Fiber Length: Longer fibers can hold more water and create a stronger, more durable paper towel.


3. Density: A less dense paper towel will have more spaces between the fibers, allowing for better absorption.


4. Embossing: Many paper towels have an embossed pattern. This embossing can create pockets that trap and hold liquids.


5. Sizing: Some paper towels are treated with chemicals that improve their wet strength and absorbency.


6. Texture: A more textured surface can increase the surface area available for absorbing liquids.

7.
Weight: Heavier paper towels, which means more layers or thicker individual layers, can absorb more liquid.

8.
Manufacturing Process: The way the paper towel is manufactured can also affect its absorbency. For example, the use of air-laid or wet-laid processes can result in a product with different absorbent properties.

Now, let's translate that into Chinese:

作为材料科学领域的专家，专注于吸收性材料，我可以解释影响纸巾吸收性的因素。

纸巾的吸收性主要由所使用的纤维的结构和组成以及制造过程决定。以下是关键因素：


1. 纤维类型：由硬木和软木浆混合制成的纸巾往往比纯软木或硬木制成的更具有吸收性。硬木纤维以其强度而闻名，而软木纤维则更具有吸收性。


2. 纤维长度：较长的纤维可以容纳更多的水分，创造出更强大、更耐用的纸巾。


3. 密度：密度较低的纸巾纤维之间的空隙更多，有利于更好的吸收。


4. 压花：许多纸巾上有压花图案。这种压花可以创建口袋，用来困住和持有液体。


5. 上胶：一些纸巾经过化学处理，以提高其湿强度和吸收性。


6. 质地：更粗糙的表面可以增加用于吸收液体的表面积。

7.
重量：更重的纸巾，意味着更多层或更厚的单层，可以吸收更多的液体。

8.
制造过程：纸巾的制造方式也会影响其吸收性。例如，使用空气铺网或湿法铺网工艺可以产生具有不同吸收性特性的产品。

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The small molecules that combine to make up cellulose are sugar molecules; that's the key to the absorbency of paper towels. Think how easily sugar dissolves in water. When you get a paper towel wet, the water molecules rush in and cling to the cellulose fibers. That's why paper towels are great at picking up spills.read more >>