牛仔裤缝边为什么都是黄线

① 牛仔裤黄线和白线区别

答题牛仔裤上的黄线是一种装饰线，而且非常结实。他的学名叫皮线比较粗。
这种皮线。一般都是砸在裤子的侧缝和裤囗还有裤腰和后兜处，用这种线即结实有装饰感是一般的白线所不能代替的。这就是他的区别所在。也是我们穿着牛仔裤时从来没有开线这么一说。
一般兰色牛仔裤用_线，比较好看，顺眼。黑色一般用白线，反差有点大，不太顺眼。

② 牛仔裤边适合什么线！

业内叫606线，是多股的线，金泰线谱有的，到专门缝纫的地方应该有，而且不是用普通家用缝纫机缝的。

③ 做牛仔裤为什么都用黄色颜色的线缝制

专业纤维织物鉴别方法：
①鉴别的方法有手感、目测法、燃烧法、显微镜法、溶解法、药品着色法以及红外光谱法等。在实际鉴别时，常常需要用多种方法，综合分析和研究以后得出结果。
②一般的鉴别步骤如下：
A. 首先用燃烧法鉴别出天然纤维和化学纤维。
B. 如果是天然纤维，则用显微镜观察法鉴别各类植物纤维和动物纤维。如果是化学纤维，则结合纤维的熔点、比重、折射率、溶解性能等方面的差异逐一区别出来。
C. 在鉴别混合纤维和混纺纱时，一般可用显微镜观察确认其中含有几种纤维，然后再用适当方法逐一鉴别。
D. 对于经过染色或整理的纤维，一般先要进行染色剥离或其它适当的预处理，才可能保证鉴别结果可靠。
非专业，一般方法靠的主要是手感和燃烧法：
晴纶：蓬松性好、有皮毛感。
熔近焰灼烧，在焰中熔并燃，离焰后速燃飞溅，气味弱香味，灰烬硬圆，不规则或珠状。
涤纶：Polyester 强力好，抗皱好，价格低，起静电，刺激皮肤。
近焰熔缩滴落，焰中起泡，续燃，弱香味，灰烬硬圆、黑或淡褐色，可压碎。
氨纶：Spandex 比较复杂，成分含量不同辨别差异特征较细微。
根据灰烬确认含涤含棉比例。
锦纶：Polyamide 强力好，手感比涤纶好，价格比高，内衣面料绝大多数是锦纶的。
难闻的臭味，灰少、浅褐色硬球。
棉 ：Cotton C 手感柔软，天然纤维、吸湿好，穿着舒适。
近焰即燃，续燃有余辉，烧纸味，灰烬极少、柔软、黑或深灰色。

④ 牛仔裤裤缝分辨

裤缝分为明线和暗线两种。
大部分牛仔裤外侧是暗线，暗线是反面缝合的，内侧是明线，明线是外面缝合的，一种外面看不见，一种外面可以看得见。
裤缝跑偏的解决方法：1、首先要挑开裤腿的缝纫线，找出歪线，接着使用直尺一类的工具，划出正确的直线到裤腿，缝起来就可以解决裤子跑偏的问题了。2、如果仅仅只是简单的歪斜跑偏，可以将裤子洗过晾干后比齐，通过熨斗升温加热熨烫就可以解决轻微跑偏了。

⑤ 为什么牛仔裤的双黄线都在裤腿的里面

呵呵，这个估计是为了美观而做的吧，因为牛仔裤通常都是样式普通的，本身也就是老外的工作服吗？做那么花哨干什么？不过双黄线在外面的也有，我买过，个人觉得挺好看的。

⑥ 为什么新买的牛仔裤，接缝处就会有线露在外面，可是我穿衣服一直都很注意啊

品牌就不会出现类似情况，如果是一般牛仔，买回找个好的师傅处理一下就行了。

⑦ 为什么蓝牛仔裤常用橙色线缝

你注意过没？很多蓝色的牛仔裤都是用橙色的线缝制的。这个传统背后还有一个小故事,我们一起来了解一下吧。 Levi Strauss, however, neither envisioned this particular use for copper riveting, which the orange thread complemented, nor the unique stitching on the rear pockets of the jeans. Jacob Davis, a Russian immigrant, and a tailor, who plied his trade in Reno, Nevada, formulated the idea for the riveted seam, an idea that would vastly extend the life of the jeans, and would revolutionize the garment instry. Alas, e to financial constraints, Jacob could neither afford to obtain a patent for his invention, nor to proce the new garment. Out of necessity, Jacob approached the wholesaler he purchased his denim from with a proposal that he sell him the West Coast rights to the riveted blue jeans, in exchange for the required to obtain a patent for them. The wholesaler whom accepted Jacob's proposition was none other than Levi Strauss. Levi gave Jacob a position with his Company in 1873 and, ring his tenure, Jacob ensured that the orange thread be used in all stitching on the jeans, and that the curved, formally named "arcuate," stitches adorn the rear pockets of the jeans. Initially the fancy, unique stitching on the rear pockets of the jeans served a purpose. The rear pockets of the first Levis the Company proced were lined with cotton, and the orange stitching prevented the padding from buckling. The Company dropped the cotton lining early on, but the stitching remained, and was registered as a trademark in 1942. Only once did it appear as if the orange stitching on the rear pockets would become a thing of the past. The material shortage ring World War II prompted Levi to contribute to the war effort by temporarily ceasing proction of jeans with the trademark stitching on the rear pockets, as this was considered frivolous and wasteful. To avoid a break in continuity of the Levi tradition, the Company had the design hand painted on the rear pockets of each pair of jeans proced. To this day, the copper rivets, matching orange thread, and ornate stitching on the rear pockets still adorn all Levis proced. The legend of Levi Strauss lives on, while Jacob Davis has been lost in the annals of history. copper rivets: 铜铆钉stitching: 缝纫riveted seam: 铆缝revolutionize: 使彻底变革garment instry: 服装工业denim: 粗斜纹棉布none other than:不是别的，正是……cotton lining: 棉衬里（来源：coolquiz.com 英语点津 Annabel 编辑）点击察看更多趣味网络知识

⑧ 牛仔裤剪裤脚用什么颜色的线缝

这样缝粗看看不出改过：
一，原边及往上1.5厘米处剪下
二，剪掉需剪的长度- 裤脚边
三，原裤边在上裤管在下，紧贴或离开原裤边的缝线1毫米，将裤边与裤管接上。

⑨ 为什么牛仔裤的边边会黄

那是因为边边被磨损了，