在酒店的运营中，桌椅套作为提升用餐与住宿体验的细节元素，其品质至关重要。而色牢度，宛如隐藏在其中的 “试金石”，默默检验着桌椅套的质量。优质的色牢度能确保桌椅套持久如新，反之则可能带来诸多困扰。那么，酒店桌椅套的色牢度测试有着怎样的标准呢？这背后藏着保障酒店形象与顾客满意度的关键密码。

　　In the operation of hotels, the quality of table and chair sets is crucial as a detail element to enhance the dining and accommodation experience. And color fastness, like a hidden "touchstone", silently tests the quality of table and chair covers. High quality color fastness can ensure that desk and chair covers last as good as new, otherwise it may bring many troubles. So, what are the standards for color fastness testing of hotel desk and chair covers? Behind this lies the key password to ensure the hotel's image and customer satisfaction.

　　耐摩擦色牢度：日常 “摩擦” 的考验

　　Color fastness to friction: a test of daily "friction"

　　酒店桌椅套在日常使用中，频繁与顾客衣物、餐具等发生摩擦。耐摩擦色牢度测试便是模拟这一情景。将标准的白色摩擦布固定在摩擦测试仪的摩擦头上，在规定压力下，对桌椅套试样进行干摩擦与湿摩擦测试。干摩擦时，白色摩擦布以一定次数、速度在桌椅套表面往复摩擦；湿摩擦则需提前将白色摩擦布浸湿至规定含水率。测试完成后，通过专业的沾色灰色样卡，对比摩擦布上沾染桌椅套颜色的程度进行评级，等级从 1 到 5 级，5 级最佳，表示几乎无掉色，1 级最差，掉色严重。一般酒店桌椅套的干摩擦色牢度要求达到 4 级及以上，湿摩擦色牢度达到 3 级及以上，以确保在长期使用中，桌椅套不因摩擦而明显掉色，维持美观。

　　Hotel table and chairs frequently come into contact with customers' clothing, tableware, and other items during daily use. The test for color fastness to friction simulates this scenario. Fix the standard white friction cloth on the friction head of the friction tester, and conduct dry and wet friction tests on the table and chair cover samples under the specified pressure. During dry friction, the white friction cloth rubs back and forth on the surface of the table and chair cover at a certain frequency and speed; Wet friction requires wetting the white friction cloth to the specified moisture content in advance. After the test is completed, a professional colored gray sample card is used to compare the degree of color staining on the friction cloth for the table and chair covers. The rating ranges from 1 to 5, with 5 being the best, indicating almost no color fading, and 1 being the worst, indicating severe color fading. The dry friction color fastness of general hotel table and chair covers is required to reach level 4 or above, and the wet friction color fastness is required to reach level 3 or above, to ensure that the table and chair covers do not significantly fade due to friction and maintain their appearance during long-term use.

　　耐水洗色牢度：频繁清洁的挑战

　　Color fastness to washing: a challenge of frequent cleaning

　　酒店为保持环境整洁，桌椅套需定期清洗。耐水洗色牢度测试就是模拟这一清洁过程。把桌椅套试样与规定的贴衬织物缝合在一起，放入皂洗色牢度试验机中，加入特定浓度的洗涤剂溶液，在一定温度（如 40℃左右）下洗涤规定时间（如 30 分钟）。洗涤结束后，取出试样和贴衬织物，清洗、干燥。同样依据灰色样卡，评定桌椅套试样的变色程度以及贴衬织物的沾色情况。对于酒店桌椅套，耐水洗色牢度通常要求变色达到 4 级及以上，沾色达到 3 - 4 级及以上，保证多次水洗后，桌椅套颜色依然稳定，不出现褪色、串色现象，避免影响酒店整体格调。

　　To maintain a clean environment, the hotel requires regular cleaning of tables and chairs. The color fastness test to washing simulates this cleaning process. Sew the table and chair cover samples together with the specified lining fabric, place them in a soap washing color fastness testing machine, add a specific concentration of detergent solution, and wash at a certain temperature (such as around 40 ℃) for a specified time (such as 30 minutes). After washing, take out the sample and lining fabric, clean and dry them. Based on the gray sample card, evaluate the degree of discoloration of the table and chair cover samples and the staining of the lining fabric. For hotel table and chair covers, the color fastness to water washing usually requires a color change of level 4 or above, and a staining of level 3-4 or above, to ensure that the color of the table and chair covers remains stable after multiple washes, without fading or color mixing, and to avoid affecting the overall style of the hotel.

　　耐汗渍色牢度：人体接触的考量

　　Color fastness to sweat stains: considerations for human contact

　　酒店中，顾客用餐或休息时，桌椅套难免会接触到汗液。耐汗渍色牢度测试需要模拟人体汗液环境，分别配制酸性汗液（pH 值约 5.5）与碱性汗液（pH 值约 8.0）。将桌椅套试样完全浸入两种汗液中，在 37℃的烘箱中放置 4 小时，模拟人体出汗时的温度与时间。取出试样自然干燥后，使用灰色样卡评估其在酸性和碱性汗液作用下的变色情况。酒店桌椅套的耐汗渍色牢度要求在酸 / 碱汗渍条件下均达到 3 - 4 级及以上，防止因汗液侵蚀导致颜色变化，为顾客提供良好体验。

　　In hotels, when customers dine or rest, desk and chair covers are inevitably exposed to sweat. The color fastness test to sweat stains requires simulating the human sweat environment, preparing acidic sweat (pH value about 5.5) and alkaline sweat (pH value about 8.0) separately. Immerse the table and chair cover samples completely into two types of sweat and place them in a 37 ℃ oven for 4 hours to simulate the temperature and time of human sweating. After natural drying of the sample, evaluate its discoloration under acidic and alkaline sweat using a gray sample card. The color fastness to sweat stains of hotel table and chair covers is required to reach level 3-4 or above under acidic/alkaline sweat conditions, to prevent color changes caused by sweat erosion and provide customers with a good experience.

　　耐光色牢度：光照环境的应对

　　Color fastness to light: response to light environment

　　酒店内的自然采光或人造灯光，也会对桌椅套颜色产生影响。耐光色牢度测试使用氙灯老化仪模拟自然光照条件，将桌椅套试样与蓝色羊毛标样一同放入仪器，在规定的辐照度（如 1.1W/m?）、黑板温度（如 50℃左右）下连续光照一定时间（如 24 小时甚至更长，视情况而定）。测试结束后，对比试样与蓝色羊毛标样的褪色程度进行评级，评级从 1 到 8 级，8 级最好。室内使用的酒店桌椅套耐光色牢度一般要求达到 4 级及以上，若用于户外区域，如酒店庭院桌椅套，则需达到 5 级及以上，确保在长期光照下，桌椅套颜色不发生明显褪色，始终保持鲜艳。

　　The natural or artificial lighting in the hotel can also affect the color of the table and chairs. The light fastness test uses a xenon lamp aging apparatus to simulate natural lighting conditions. The table and chair cover samples are placed together with the blue wool standard sample in the instrument at a specified irradiance (such as 1.1W/m)? ）Continuous exposure to light for a certain period of time (such as 24 hours or even longer, depending on the situation) at a blackboard temperature (such as around 50 ℃). After the test is completed, the fading degree of the comparison sample and the blue wool standard sample is rated from 1 to 8, with 8 being the best. The color fastness of hotel table and chair covers used indoors generally requires a level of 4 or above. If used in outdoor areas such as hotel courtyard table and chair covers, it needs to reach a level of 5 or above to ensure that the color of the table and chair covers does not fade significantly under long-term light exposure and remains bright at all times.

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