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Click the tabs below to view our UPF 50+ Certification, the history of synthetic sun protective clothing, or get Washing instructions for your hat.

UPF 50+ Sun Protection Certification Information

 

We have submitted our hats for lab certification by ASTM standards.

 

Ribbon Crusher Hat Fabric

Suncare Research Laboratories, LLC
2518-B Reynolda Road
Winston Salem, NC 27106
(336) 725-6501
(336) 725-6503 fax
SRL2008-224
Dark Brown Hat
JED Traders, Inc.

Conclusions:
The test article, Dark Brown Hat, had a UPF- E value of 1770.59 and may
be labeled as UPF 50 +
.

1. Standard Practice for Conditioning and Testing Textiles, ASTM
Designation: D 1776-98. ASTM International, 100 Barr Harbor Drive,
PO Box C700, West Conshohocken, PA, 19428-2959 USA.
2. Transmittance or Blocking of Erythemally Weighted Ultraviolet Radiation
through Fabrics, AATCC Test Method 183-2000. . American Association
of Textile Chemists and Colorists, Research Triangle Park, I\JC 27709.
3. Standard Guide for Labeling of UV-Protective Textiles,” ASTI’1
Designation: D 6603-00. ASTM International, 100 Barr Harbor Drive,
PO Box C700, West Conshohocken, PA, 19428-2959 USA.

Garden Hat Fabric

Suncare Research Laboratories, LLC
2518-B Reynolda Road
Winston Salem, NC 27106
(336) 725-6501
(336) 725-6503 fax
SRL2008-224
Light Brown Hat (Style #NH71)
JED Traders, Inc.

Conclusions:
The test article, Light Brown Hat (Style #NH71), had a UPF- E value of
1148.15 and may be labeled as UPF 50 +.

1. Standard Practice for Conditioning and Testing Textiles, ASTM
Designation: D 1776-98. ASTIV1 International, 100 Barr Harbor Drive,
PO Box C700, West Conshohocken, PA, 19428-2959 USA.
2. Transmittance or Blocking of Erythemally Weighted Ultraviolet Radiation
through Fabrics, AATCC Test Method 183-2000. . American Association
of Textile Chemists and Colorists, Research Triangle Park, NC 27709.
3. Standard Guide for Labeling of UV-Protective Textiles,” ASTM
Designation: D 6603-00. ASTM International, 100 Barr Harbor Drive,
PO Box C700, West Conshohocken, PA, 19428-2959 USA.

Sun Protective Clothing

Sun protective clothing is clothing specifically designed for sun protection and is produced from a fabric rated for its level of ultraviolet (UV) protection. A novel weave structure and denier (related to thread count per inch) may produce sun protective properties. In addition, some textiles and fabrics employed in the use of sun protective clothing may be pre-treated with UV inhibiting ingredients during manufacture to enhance their UV blocking capacity.

Not only limited to UV-inhibiting textile use, sun protective clothing may also adhere to specific design parameters – including styling appropriate to full coverage of the skin most susceptible to UV damage. Long sleeves, full collars, and full-length trousers and skirts are common styles for clothing as a sun protective measure.

A number of fabrics and textiles in common use today need no further UV-blocking enhancement based on their inherent fiber structure, density of weave, and dye indigo dyes. Good examples of these fabrics contain full percentages and/or blends of heavy weight natural fibers like cotton, linen and hemp or light-weight synthetics such as polyesternylonlycra and polypropyleneNatural or synthetic indigo dyed denimtwill weaves and canvas are also good examples. However, a significant disadvantage is the heat retention caused by heavier weight and darker colored fabrics. components – especially darker colors and

As sun protective clothing is usually meant to be worn during warm and humid temperatures, some UV-blocking textiles and clothing may be designed with ventilated weaves, moisture wicking and antibacterial properties to assist in cooling and breathability.

History

Sun protective clothing was originally popularized (but not exclusively used) in Australia as an option or adjunct to sunscreen lotions and sunblock creams. Sun protective clothing and UV protective fabrics in Australia now follow a lab-testing procedure regulated by a federal agency: ARPANSA. This standard was established in 1996 after work by Australian swimwear companies. The British standard was established in 1998. The NRPB (National Radiological Protection Board) forms the basis of the British Standards Institute standard. Using the Australian method as a model, the USA standard was formally established in 2001, and now employs a more stringent testing protocol: This method includes fabric longevity, abrashion/wear and washability. (To date, the focus for sun protection isswimwear, appropriate hats, shade devices and sunglasses for children.) UPF testing is now very widely used on clothing used for outdoor activities.

The original UPF rating system was enhanced in the United States by the ASTM (American Standards and Testing Methods) Committee D13:65 at the behest of the FDA (Food and Drug Administration) to qualify and standardize the emerging sun protective clothing and textile industry. The UPF rating system may eventually be adopted by interested apparel and domestic textile/fabric manufacturers in the industry at large as a “value added” program strategic to complement consumer safety and consumer awareness.

Fabric

Factors that affect the level of sun protection provided by a fabric, in approximate order of importance, include weavecolorweightstretch, and wetness. In addition, UV absorbers may be added at various points in the manufacturing process to enhance UV protection levels.

There is some indication that washing fabrics in detergents containing fabric brighteners, which absorb UV radiation, might increase their protective capability. Studies at the University of Alberta also suggest that darker colored fabrics can offer more protection than lighter colored fabrics.[1]

UPF 50+ Rating

A relatively new rating designation for sun protective textiles and clothing is UPF (Ultraviolet Protection Factor). Unlike SPF (Sun Protection Factor) that measures only UVB, UPF measures both UVA and UVB.

Developed in 1998 by Committee RA106, the testing standard for sun protective fabrics in the United States is the American Association of Textile Chemists and Colorists (AATCC) Test Method 183. This method is based on the original guidelines established in Australia in 1994.

Summary UPF Testing Protocol

AATCC 183 method defines the UPF rating for a fabric/textile as the ratio of UV measured without the protection of the fabric (compared to) with protection of the fabric. For example, a fabric rated UPF 30 means that if 30 units of UV fall on the fabric only 1 unit will pass through. A UPF 30 fabric that blocks or absorbs 29 out of 30 units of UV is therefore blocking 96.7% UV. UPF tests are normally conducted in a laboratory with a spectrophotometer or a spectroradiometer.

AATCC 183 should be used in conjunction with other related standards including American Society for Testing and Materials (ASTM) D 6544 and ASTM D 6603. ASTM D 6544 specifies simulating the life cycle of a fabric so that a UPF test can be done at the end of a fabric’s life cycle – which is when most fabrics provide the most reduced level of UV protection. ASTM D 6603 is a consumer format recommended for visible hangtag and care labelling of sun protective clothing and textiles. A manufacturer may publish a test result to a maximum of UPF 50+.

While there is some correlation between the amount of visible light that passes through a fabric and the amount of UV that passes the same fabric, it is not a strong relationship. Based on some of the new-technology fibers and textiles designed for the sole purpose of UV blocking, it is not always possible to gain a good understanding of the UV protection level of a fabric simply by holding it up and examining how much visible light passes through the fabric.

Sun protective clothing and textile/fabric manufacturers are currently a self-regulating industry in North America, prescribed by the AATCC and ASTM methods of testing.

Information source : Wikipedia

Washing

Hat Washing Instructions

None of our hats should be washed in a washing machine or put in a dryer.

Any synthetic ribbon hats (“ribbon crusher” hats) can be spot cleaned, by hand, using warm water and a mild detergent.  Rinse well and let air dry.  If need be, you can also wash the whole hat in a sink full of warm water with a mild detergent, but spot cleaning is preferable.  Wash by hand in the sink, rinse thoroughly and air dry.  These hats are made of polyester ribbon and should retain their shape after getting wet.

Paper-braid, raffia or any other natural-fiber hats should not be washed and should not get wet.

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