Core Viewpoint - The rising temperatures have led to an increased popularity of "cooling fabric technology" in the apparel and home textile markets, with various brands launching products that claim to provide an instant cooling sensation upon contact [1][4]. Group 1: Product Offerings - Numerous brands, including Muji, Uniqlo, and IKEA, have introduced cooling fabric collections this summer, featuring items like pillowcases, bed sheets, and clothing with labels indicating their cooling properties [4][2]. - A specific product, the "cooling pillowcase," is made of 60% nylon and 40% lyocell, designed to provide an instant cooling sensation and a soft, smooth touch [2][4]. Group 2: Technology Behind Cooling Fabrics - Cooling fabrics achieve their effects primarily through modifications in fiber structure, molecular arrangement, and moisture evaporation [6]. - The cooling sensation is created when the fabric absorbs body heat, leading to a rapid temperature drop upon contact with the skin [4][7]. Group 3: Standards and Evaluation - There are national and industry standards for assessing cooling fabrics, with a Qmax value greater than 0.15 indicating a product can be classified as cooling [7]. - The GB/T35263-2017 standard outlines testing methods for the cooling performance of textiles, applicable to various fabrics and products [7]. Group 4: Longevity of Cooling Effect - The cooling effect is temporary and diminishes as the fabric temperature approaches that of the body, with repeated use and washing further reducing its effectiveness [8][10]. - Brands like Tennie Wennie explicitly state that the cooling effect will weaken over time with usage [8]. Group 5: Consumer Guidance - Consumers are advised to look for products that meet national cooling standards rather than solely focusing on high Qmax values, as comfort also depends on the fabric's thermal conductivity and moisture absorption [9][10]. - The term "ice silk" is often used for marketing purposes and lacks a clear definition in national standards, with many products containing synthetic fibers that may not provide the expected comfort [9].

Core Viewpoint - The global demand for cooling products is surging due to rising temperatures, with various innovative cooling items like fan hats and pet cooling mats gaining popularity among overseas customers [1][12]. Group 1: Small Cooling Products - In Yiwu International Trade City, unique small cooling items attract foreign buyers, including solar-powered fan hats [4]. - Traditional rechargeable products require power banks when out of battery, while solar-powered options eliminate this concern [6]. - A variety of creative products, such as fan-equipped sun umbrellas, are quickly sold out upon arrival [9]. - The international e-commerce platform Alibaba International Station reports a nearly 77% year-on-year increase in sales for portable fans, mobile air conditioners, ice makers, and other cooling appliances over the past 30 days [14]. Group 2: Large Cooling Appliances - Larger appliances, such as customized refrigerators, are also experiencing a strong export surge, with a single-month growth rate of 324% in April 2025 and orders in the first half of the year exceeding 90% of the total orders for 2024 [15]. - Companies are adapting their products to meet specific regional needs, such as adjusting voltage compatibility for unstable power supplies in Africa [18]. - Mobile air conditioners are gaining traction globally, with a 10% year-on-year increase in orders, reaching over 150 countries and regions by the end of May [19]. - From January to May 2025, China's exports of household air conditioners reached $9.45 billion, a 17.8% increase year-on-year, while fans and refrigerators also saw significant growth [19]. Group 3: Innovative Materials and Technologies - Companies are focusing on global development and enhancing R&D efforts to meet diverse consumer needs with intelligent, energy-efficient, and personalized products [24]. - The fourth-generation refrigerants, previously dominated by Western countries, are now being produced in Shandong, with a 50% year-on-year increase in European orders due to their low global warming potential [25].