Report 33 Anti heat stress clothing for construction workers in hot and humid weather 14 November, 2013.

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1 Report 33 Anti heat stress clothing for construction workers in hot and humid weather 14 November, 2013

2 行業分類 公司名稱 冷凍衣送貨地址 收貨人姓名 電話 派發數目 派發數目 (S+M碼) L碼 S碼 M碼 valid questionaire (worker) valid questionaire (management) Work to do 34 建造業 金門建築有限公司 將軍澳工業村駿宏街一號金門建築M樓 Wendy Leung / 93 57 12 6 13 20 1 Completed without new questionaires returned 35 Gammon Construction Limited - Building 香港聶歌信山道8號 Calvin Leung 5 14 To be collected by company and back, 25sep reply to to push on early Oct 36 Gammon Construction Limited - Piling 九龍亞皆老街 號 Yeung Chu Kwong 8 45 Paul Y. General Contractors Ltd 筲箕灣南安街(H21地盤) 簡先生 37 24 7 3 9 4 38 有利建築有限公司 九龍灣常悅道9號企業廣場1期1座10樓 林生 25 15 10 47 立基工程有限公司 元朗宏富街2號 Andy Yuen , (肖小姐） 16 17 Total 64 Required 63 Completed Jackie: 68/63 completed 物業管理 新恆基國際物業管理有限公司 香港中環皇后大道中183號新紀元廣場中遠大廈37樓 楊敏華/ lam sheng / 2 第一太平戴維斯物業管理有限公司 香港英皇道1111號太古城中心一期八樓805-13室 Sara Ho 恒毅環衛服務有限公司 香港九龍觀塘鴻圖道23號利登中心1樓 Mr. Robert Cheng 11 18 啟勝管理服務有限公司 新界大埔中心第七座3樓 Winnie 42 32 6 (softcopy); New Town Plaza: 7 4 (softcopy); New Town Plaza: 4 19 康業服務有限公司 九龍觀塘巧明街95號世達中心16樓 李耀祖先生/蘇敏兒小姐 / 40 29 Arrange 33 surveys from 21Oct~15Nov (15Oct) 56 28 Jackie: 56/56

3 行業分類 公司名稱 冷凍衣送貨地址 收貨人姓名 電話 派發數目 派發數目 (S+M碼) L碼 S碼 M碼 valid questionnaire (worker) valid questionnaire (management) Work to do 20 飲食業 稻苗學會 新界火炭坳背灣街13號VTC稻苗學院3樓309室 梁偉傑 50 35 15 9 26 2 To be collected by company and back (3 Oct push), Called on 11 Nov, questionnaire again 21 香港餐務管理協會 九龍九龍灣宏通街2號寶康中心2樓14室 黃心朗 / 24 17 7 4 13 Contacted and (25sep), push (7, 23 Oct), not sure for collection; questionnaire again on 13Nov2013 22 現代管理(飲食)專業協會 九龍尖沙咀亞士厘道22號好利時大廈2樓 潘惠貞 10 (大碼冷凍衣9月26日會議中分發給協會會董), remind (22Oct), will send back over 10 at end of Oct (23Oct) 23 太興環球發展有限公司 火炭黃竹洋街華生工業大廈B座1212室 五常部 Poe Chan / 30 6 3 Only three workers wore cooling vest (15Oct) 額外 Total Required 49 Outstanding 32 機場地勤 怡中地勤服務有限公司 香港國際機場一號客運大樓卸貨區 (到達前請與收貨人聯絡) 林生 25 18 16 1 Remains: 2 workers and 1 management staff and promised to collect by themselves 香港空運貨站有限公司 香港國際機場超級一號貨站北座4樓402室 陳生 / 8 Contacted and wait to reply (23Sep2013), reject (26sep) 香港飛機工程 南環路80號香港國際機場行政大樓2樓(環境保護及工業安全部) 侯小姐 36 14 28 To be collected by company and back by end-Oct (23Oct), may collect 30, push every week 中國飛機服務有限公司 香港國際機場南環路81號 吳生 5 Visiting site at 10 am on Oct 31, 2013, push on 11 Nov 機場保安有限公司 香港大嶼山香港國際機場暢業路1號1樓 (富豪酒店對面) 林先生 Completed without new questionnaires returned 79 香港機場管理局 香港大嶼山香港國際機場翔天路一號機場行政大樓 羅生  Completed without new questionnaires returned 46 51 Jackie: 45/51

4 Objectives Objective 1: Field survey on construction workers’ requirement for clothing Objective 2: Fabric and garment objective measurement Objective 3_1: computer simulation for screening new fabrics Objective 3_2: Design, pattern and production of new clothing Objective 4: Design evaluation field wear trials Objective 5: Evaluate the effectiveness of existing clothing and newly designed clothing for construction workers Completed Completed Completed In progress

5 Fabric Decision Computer simulation Project
Anti heat stress clothing for construction workers in hot and humid weather (>30℃) * When environment temperature is 25~30℃, the cooling effect of evaporation by perspiring, makes use of the very large heat of vaporization of water. Every gram of water evaporated is equivalent to the loss of 2.4 kJ [3]. Fabric searching Fabric objective measurement Basic characters Thickness_ Thin Thermal function 2. Water vapour permeability(↑ )_Vapour permeable(↑ ) Air resistance(↓ )_Breathability(↑) Overall moisture management capacity (OMMC) (↑ ) _ sweating transfer function(↑ )-----Most important* Computer simulation Fabric screening Fabric Decision

6 1. Fabric Objective Measurement

7 技術參數數值範圍分級表: 分級 參數指標 1 2 3 4 5 數值範圍 測試標準 Bad fair medium good excellent 布厚度（mm） >1.6 <0.4 0-2 ASTM D 1777 單位布重（g/m2） > 240 60-120 <60 0-300 ASTM D 3376 空氣阻力(Kpa.s/m) < 0.4 KES Test Method 导热系数(w/m°C) < 0.04 >0.085 ISO 15496 水氣滲透率(g m-2 Day-1) < 400 > 1000 全面水分管理評價(吸濕排汗) < 0.2 >0.8 0-1 SN/T 抗紫外 UPF rating <10 10-20 20-30 30-40 >40 0-50 AS/NZS 4399:1996 抗静电(10^11ohms） >240 Rothschild method 耐磨 >20% 15%-20% 10%-15% 5%-10% <5% 0-25% ASTM D4966 吸湿 <2% 2%-4% 4%-8% 6%-8% >8% 0-10% ASTM D An ASTM

8 T-shirt fabric property
CIC T shirt Nano-tex (Green) Coolmax 100% (White) Dry inside Fiber content 35%polyest, 65%cotton 100% Cotton Polyest 95%Cotton, 5% Spandex Basic characters Weight (g/100cm2) 1.87 (Grade 2) 2.09 (Grade 2), 1.46 (Grade 3) 1.99 (2) Thickness (mm) 0.82 (Grade 3) 0.86 (Grade 3) 0.61 (Grade 4) 0.72 (Grade4) Thermal function  Air resistance (KPa·s/m) 0.14 (Grade 5) 0.11 (Grade 5) 0.06 (Grade 5) 0.81 (Grade 3) Thermal conductivity (W/m°C) 0.06 (Grade 3) (Grade 4) (Grade 2) 0.067 (Grade3) Water vapor transfer rate (g/day/m2) (Grade 2) (Grade3) (Grade 2) 639.97(Grade3) Overall Moisture Management Capacity (OMMC) 0.507 (Grade 3) (Grade 4) (Grade 5) (Grade 5) Protection UPF rating (Grade5) 50+ (Grade5) (Grade5) 50+ (Grade 5) Anti-static (*10^11 ohms) 2.760 (Grade 5) 1.740 (Grade 5) 5.880 (Grade 5) 10.12 (Grade 5) Abarison Weight loss percentage (%) 3.107 (Grade 5) 6.646 (Grade 4) 0.000 (Grade 5) Moisture Regain （grade 5） 0.08（grade5） 0.004（grade 5） 0.076（grade 5） T-shirt fabric property Note : the higher the grade, the better performance

9 T-shirt fabric properties
Initial values After weighting

10 Trousers fabric property Moisture regain CIC HN2 FSD
CIC HN2 FSD Cotton 57%+Coolmax18.5% Fiber content  100%cotton  cotton  40%polyest, 60%cotton  Cotton 57%+Coolmax18.5% Basic characters Weight (g/100cm2) 2.44 (Grade 1) 1.85(Grade 2) 1.95(Grade 2) Thickness (mm) 0.57 (Grade 4) 0.42 (Grade 4) 0.48(Grade 4) 0.43(Grade 4) Thermal function  Air resistance (KPa·s/m) 1.92(Grade 5) 1.71(Grade 5) 1.96(Grade 5) 1.88(Grade 5) Thermal conductivity (W/m°C) 0.054 (Grade 2), 0.05(Grade 2) 0.06(Grade 3) Water vapor transfer rate (g/day/m2) 507.43(Grade 2) 501.84(Grade 2) 530.58(Grade 2) 509.47(Grade 2) Overall Moisture Management Capacity (OMMC) 0.08(Grade 1) 0.84(Grade 5) 0.87(Grade 5) 0.71(Grade 4) Protection UPF rating 50+(Grade 5) 35.00(Grade 4) 50+(Grade 5 Anti-static (*10^11 ohms) 0.86(Grade 5) 1.18(Grade 5) 1.77(Grade 5) 4.72(Grade 5) Abarison Weight loss percentage (%) 3.75(Grade 5) 7.39(Grade 4) 8.01(Grade 4) 2.35(Grade 5) Moisture regain 0.08（grade 5） 0.08（grade5） 0.074（grade 5） 0.072（grade 5） Note: the higher the grade, the better performance

11 Trousers fabric properties
Initial values After weighting

12 = =

13 服装面料因素对香港建筑工人夏季所穿服装性能的影响
此项调查问卷用于研究服装面料因素（结构与基本物理性质）对香港建筑工人夏季服装穿着性能的影响。请仔细阅读该问卷的背景资料，完成以下问题。感谢您的参与！ 一. 基本信息 姓名___宋文芳________ 性别____女______ 工作单位______香港理工大学_____________________ 职称___________博士后____________ 研究方向_______纺织材料热湿传递与表征______ 和问卷研究相关经验（年） ______ 二. 主要内容 1. 请在括号内填写以下服装性能在服装总性能中所占比重（比重之和为1，下同）。 A. 防护性能 ( ) B. 散热性能 ( ) 2. 请填写以下服装面料性能在服装防护性能中所占比重。 A. 耐磨 ( ) B. 抗紫外 ( ) C. 抗静电 ( ) 3. 请给出以下几种散热方式在总的服装散热中所占比重。 A. 热传导 ( ) B. 热对流 ( ) C. 热辐射 ( ) D. 热蒸发 ( ) 4. 请给出以下因素在服装传导散热中所占比重。 A. 厚度 ( ) C.导热系数 ( ) 5. 请给出以下因素在服装辐射散热中所占比重。 A. 厚度 ( ) B. 重量( ) 6. 请给出以下因素在服装热对流散热中所占比重。 A. 厚度 ( ) B. 透气 ( ) 7. 请给出以下因素在服装蒸发散热中所占比重。 A. 透气 ( ) B.*水处理能力 ( 0.3 ) C. 透湿汽能力 ( ) D: 吸湿能力（ ） 注: *水处理能力：代表织物将皮肤表面的汗液传递到环境中的能力。

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15 Results: T-shirts Note: the higher the value, the better performance

16 Trousers Note: the higher the value, the better performance

17 2. VALIDATING THE SIMULATION RESULTS

18 Field Study 2011 Ear Temperature Rest Work Exhaustion Recovery
Copyright © Albert Chan All Rights Reserved.

19 (hr-min) (hr-min-sec) (m/s) (°C) (%) bpm Kcal/min ---
Resting measurement 80 Met w/m2 RH Wind velocity WBGT A 0th min 14:02 0:00:14 81 1.84 1.64 B 5th min 14:07 0:05:17 1.61 1.52 C 10th min 14:12 0:10:17 1.54 1.44 D 15th min 14:17 0:15:18 86 1.99 1.80 E 20th min 14:22 0:20:15 1.40 1.30 F 25th min 14:52 0:50:16 100 2.29 2.08 G 30th min 14:57 0:55:16 0.34 29.43 68 97 2.19 2.00 H 35th min 15:02 1:00:17 29.35 66 95 0.73 0.72 52  0.3  31.42  I 40th min 15:07 1:05:15 0.22 30.57 65 1.72 Work measurement 15:12 1:10:16 0.38 31.70 64 112 4.38 4.01 233.6  53  0.3 32.08  1 15:17 1:15:14 1.5 32.29 60 115 3.13 2.81 2 15:22 1:20:22 0.59 31.47 61 111 3.97 3.55 3 15:27 1:25:16 0.7 31.11 96 1.10 1.02 59.575 4 15:32 1:30:16 1.69 30.66 69 2.94 2.62 5 15:37 1:35:27 0.21 30.65 73 98 1.81 1.66 6 15:42 1:40:11 30.79 74 107 2.88 2.65 7 15:47 1:45:14 0.58 30.49 123 4.03 3.51 8 15:52 1:50:14 1.14 30.46 117 4.79 4.26  48 0.95  33.24  9 15:57 1:55:17 30.63 121 5.35 4.70 10 16:02 2:00:19 2.54 2.36 11 16:07 2:05:19 0.35 30.27 105 4.45 3.95  43  0.31  34.18 12 16:12 2:10:16 30.37 2.42 2.20 13 16:17 2:15:17 0.84 30.82 75 104 3.99 3.62 14 16:22 2:20:13 0.26 101 3.09 2.87 51   0.81 30.98  15 16:27 2:25:16 0.15 30.74 0.95 55.256  55  1.33 30.39  16 16:32 2:30:16 91 1.26 1.17 17 16:37 2:35:18 0.71 31.23 72 94 1.31 18 16:42 2:40:24 31.48 71 0.78 0.76 19 16:47 2:45:24 90 1.43 1.36

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23 The simulated results were validated

24 Core temperature Selected fabric

25 Skin humidity Selected fabric

26 Skin temperature (degree C)
HN1 CIC FSD Selected fabric A4484 Skin temperature (degree C)

27 Core temperature Selected fabric

28 Summary for selected fabric
T-Shirt : Coolmax 100% (White) Excellent overall Moisture Management Capacity, indicating excellent ability on sweating transfer to environment Excellent breathability Light and thin Excellent anti-static ability and durability The lowest core temperature and skin humidity by computer simulation Trousers: FSD fabric Excellent vapour permeable capacity and breathability Excellent anti-static ability and UV protection Lower core temperature and skin temperature by computer simulation

29 3. Design

30 Mark Rank Abbreviated Journal Title (linked to journal information)
ISSN JCR Data Eigenfactor® Metrics Total Cites Impact Factor 5-Year Impact Factor Immediacy Index Articles Cited Half-life Eigenfactor® Score Article Influence® Score 1 DYES PIGMENTS 7664 3.532 3.433 0.897 321 5.5 0.638 2 CELLULOSE 3273 3.476 3.749 0.476 189 4.8 0.799 3 J IND TEXT 252 1.308 0.190 21 6.1 4 TEXT RES J 4588 1.135 1.458 0.098 194 >10.0 0.307 5 J VINYL ADDIT TECHN 398 1.107 1.102 0.114 35 6.0 0.215 6 FIBER POLYM 1020 0.912 1.103 0.060 200 4.1 0.229 7 COLOR TECHNOL 603 0.899 0.981 0.132 68 6.7 0.174 8 J ENG FIBER FABR 163 0.807 1.203 0.034 59 0.322 9 FIBRES TEXT EAST EUR 808 0.801 0.851 0.092 119 0.140 10 J TEXT I 1254 0.725 0.745 0.046 151 0.182 11 WOOD FIBER SCI 1397 0.717 0.832 0.111 45 0.240 12 J SOC LEATH TECH CH 366 0.648 0.459 0.028 36 0.095 13 J AM LEATHER CHEM AS 472 0.644 0.573 0.067 0.122 14 J NAT FIBERS 104 0.558 0.000 4.7 15 INDIAN J FIBRE TEXT 373 0.486 0.119 5.8 16 INT J CLOTH SCI TECH 303 0.458 0.554 28 9.4 0.150 17 AUTEX RES J 188 0.405 7.1 18 IND TEXTILA 55 0.366 0.251 0.064 47 0.023 19 AATCC REV 205 0.354 0.297 30 8.3 0.065 20 TEKST KONFEKSIYON 88 0.304 0.043

31 4. Estimated Costs of the Proposed Uniform
Items Proposed 1 set (HK$) Proposed 100 sets (yds/HK$) Remarks Trousers  (a) Fabric cost 32/yd (b) Material cost 83 (2.6 yds/pc) 260 yds Advised 300 yds will be produced in case fabric is insufficient to meet needs due to defect/fade during fabric moisture transfer treatment. (c) Workmanship 75 Total Cost (b+c) 158 T-Shirt  34/yd 40.8 (1.2 yds/pc) 120 yds The calculation for pc is loose and it is not necessary to more yds than 120 yds 50 90.8 Total Set Cost 248.8 100 Set Cost 24880 Total Cost (40 more yds)=26160 HK$ Remark: The estimated cost is calculated based on bulk purchase of 50,000 sets of new garments. 1 The cost range is based on quotations of a commercial garment production factory in mainland China, and TAL 2 yards/piece is based on estimation Remarks: other expenditure includes carriage, MMT treatment

32 5. Colour selection

33 Thanks