国产网红无码精品视频,国产高清在线精品一区不卡,久久精品国产亚洲AV日韩,日本熟妇xxxx乱

純棉T恤的具有什么樣的優缺點
What are the advantages and disadvantages of cotton t-shirts
純棉；純棉織物是以棉花為原料，通過織機，由經緯紗縱橫沉浮相互交織而成的紡織品。目前按照實際加工的棉花來源又區分為原生棉織物和棉織物。
 Pure cotton; Pure cotton fabric is a textile made of cotton as raw material and interwoven with warp and weft yarns vertically and horizontally through loom. At present, according to the actual source of processed cotton, it is divided into primary cotton fabric and cotton fabric.
純棉的優勢：
Advantages of pure cotton:
1、吸濕性：棉纖維具有較好的吸濕性，在正常的情況下，纖維可向周圍的大氣中吸收水分，其含水率為8-10%，所以它接觸人的皮膚，使人感到柔軟而不僵硬。如果棉布濕度加大，周圍溫度較高，纖維中含的水分量會全部蒸發散去，使織物保持水平衡狀態，使人感覺舒服。
1. Hygroscopicity: cotton fiber has good hygroscopicity. Under normal circumstances, the fiber can absorb water into the surrounding atmosphere. Its moisture content is 8-10%, so it contacts people's skin and makes people feel soft but not stiff. If the humidity of cotton cloth increases and the surrounding temperature is high, all the water content in the fiber will evaporate and disperse, so as to keep the water balance of the fabric and make people feel comfortable.
2、保溫性：由于棉纖維是熱和電的不良導體，熱傳導系數非常低，又因棉纖維本身具有多孔性，彈性高優點，纖維之間能積存大量空氣，空氣又是熱和電的不良導體，所以，純棉纖維紡織品具有良好的保溫性，穿著純棉織品服裝使人感覺到溫暖。
2. Thermal insulation: because cotton fiber is a bad conductor of heat and electricity, the thermal conductivity is very low, and because cotton fiber itself has the advantages of porosity and high elasticity, a large amount of air can be accumulated between fibers, and air is a bad conductor of heat and electricity, pure cotton fiber textiles have good thermal insulation, and people feel warm wearing pure cotton fabrics and clothes.
3、耐熱性：純棉織品耐熱性能良好，在攝氏110℃以下時,只會引起織物上水分蒸發,不會損傷纖維,所以純棉織物在常溫下,穿著使用,洗滌印染等對織品都無影響,由此對提高了純棉織品耐洗耐穿服用性能。
3. Heat resistance: pure cotton fabric has good heat resistance. When the temperature is below 110 ℃, it will only cause water evaporation on the fabric and will not damage the fiber. Therefore, the wearing, washing, printing and dyeing of pure cotton fabric at room temperature have no impact on the fabric, which improves the washing, wearing and wearing performance of pure cotton fabric.

4、耐堿性：棉纖維對堿的抵抗能力較大，棉纖維在堿溶液中，纖維不發生破壞現象，該性能有利于服用后對污染的洗滌，除雜質，同時也可以對純棉紡織品進行染色、印花及各種工藝加工，以產生更多棉織新品種。
4. Alkali resistance: cotton fiber has great resistance to alkali. When cotton fiber is in alkali solution, the fiber will not be damaged. This performance is conducive to the washing of pollution and the removal of impurities. At the same time, it can also dye, print and process pure cotton textiles, so as to produce more new cotton varieties.
5、衛生性：棉纖維是自然纖維，其主要成分是纖維素，含有少量的蠟狀物質和含氮物與果膠質。純棉織物經多方面查驗和實踐，織品與肌膚接觸無任何刺激，久穿對人體有益無害，衛生性能良好。
5. Hygiene: cotton fiber is a natural fiber. Its main component is cellulose, which contains a small amount of waxy substances, nitrogen-containing substances and pectin. The pure cotton fabric has been inspected and practiced in many aspects. The fabric has no stimulation in contact with the skin. It is beneficial and harmless to the human body after long wearing, and has good hygienic performance.
純棉的缺點：
Disadvantages of pure cotton:
1、容易皺，而且皺了以后比較難撫平。
1. It is easy to wrinkle, and it is difficult to smooth after wrinkle.
2、易縮水，純棉衣物的縮水率是2%到5%，經過特殊加工，或洗水處理例外。
2. Easy to shrink. The shrinkage rate of pure cotton clothes is 2% to 5%, with the exception of special processing or washing treatment.
3、易變形，缺乏彈性，純棉衣物都會容易變形，尤其是夏裝，因為面料比較薄。
3. It is easy to deform and lack elasticity. All cotton clothes are easy to deform, especially summer clothes, because the fabric is relatively thin.
4、易粘毛，很難完全清理干凈。
4. It is easy to stick and difficult to clean completely.
5、特別怕酸，當濃硫酸沾染棉布時，棉布被燒成洞，當有酸（比如：醋）不慎弄到衣服上，應及時清洗以免醋酸對衣服產生致命的破壞。
5. Especially afraid of acid. When concentrated sulfuric acid contaminates the cotton cloth, the cotton cloth will be burned into holes. When acid (such as vinegar) accidentally gets on the clothes, it should be cleaned in time to avoid fatal damage to the clothes by acetic acid.
以上就是為大家介紹的有關濟南幼兒園園服定做的詳細介紹,希望對您有所幫助.如果您有什么疑問的話,歡迎聯系我們.我們將以專業的態度,為您提供服務http://www.bj-online.cn
The above is a detailed introduction to the customized kindergarten clothes in Jinan. I hope it will be helpful to you If you have any questions, please contact us We will provide you with professional service http://www.bj-online.cn