Break the mystery of high loftiness -- Tianshi platypus down sleeping bag test experience
table of Contents
I. Product introduction
Second, on the degree of bulkiness
Third, static display
Fourth, on-site assessment
V. Summary
On the eve of the Dragon Boat Festival, we received a sleeping bag sent by 50, and it was handy to use it during the planned Dragon Boat Festival of the Changbai Mountain Jinjiang Grand Canyon. Thank you, Tianshi Company! Thanks for equipment cool! Thanks for 50! Following the usual introduction of this Tianshi platypus down sleeping bag.
1, brand profile:
2, product details:
Second, on the degree of bulkiness
Through the above basic information, many of my friends will feel slightly lower when they look at the slackness index of this sleeping bag. Why? In this high-loft mythical world, the 650FP is not really high. Before I had two down sleeping bags, one with 600 grams of stuffing, one with 200 grams of stuffing, and 800 goose down.
It is reasonable to say that the higher the fluffiness of down is, the better the warmth is, and the same fluffy goose down is more warm than duck down, but in the actual experience, there is no obvious difference in warmness between high-loft goose down and slightly lofty duvet. However, the duvet with less bulkiness is superior to water repellency. With regard to this doubt, I checked out some information on the degree of bulkiness and understood it. I hope to share it with my friends here.
Fluffiness in English is FILLPOWER (orFILLINGPOWER) usually referred to as FP. "FILLPOWER" has become the most important indicator of the performance of down equipment since its birth (no one). Until today is still the only and preferred technical indicator for many people to choose down equipment, then the bulkiness is really the better? Why do most of the adventure equipment use 650-750 feathers? Instead of using the highest standard of fluffiness. Is it because of the price? Or are there other reasons?
Whether it is Wikipedia or IDFL (International Feather Feather Testing Laboratory) and other authoritative sites on the definition of loftiness is not complicated: according to a certain weight of down space in a specific environment, based on this size to grade. From this definition, we can clearly understand the concept that "fleshness" is just a constant weight of fleece in a specific environment.
Warmness is of course the higher the degree of loftiness the better, because the larger the volume of the corresponding insulation effect is better, but the larger the volume, for a constant weight of down, the spatial density will be smaller and smaller, down support strength will also be because Provide more space and get lower and lower. Feather as a thermal insulation layer cannot exist alone, and there is not enough support force in other materials and use process. It is the fluffiness that is most easily lost in down.
1. The low bulkiness of compression is best, but the warmth is too weak
2. The highest loft compressive ability is the worst, but the thermal performance is high
3. Moderate fluffiness can take into account both the ability to resist pressure and keep warm
The description of the degree of loftiness in Wikipedia is very subtle but it is clear that even the bulkiness of the 550 can provide enough thermal performance, and the 550 figure is the industry standard for down products in the golden mountaineering era. Looseness is the data in the laboratory, and we can't live in the lab. There is limit to the fluffy capacity of down, and there is no limit to loftiness. Down is by far the warmest natural material on the planet, but the history of being used as a thermal insulation layer (here used specifically for outdoor equipment) by humans is not long, and the down comes from the pile of feathers under the bird's feathers. The most common ducks and geese their main mission is to provide food for humans rather than down, down is just a byproduct of ducks and geese become human food. In the short life cycle of ducks and geese, they can provide extremely low loftiness, ranging from 300 to 450. Only after 1-2 years of feeding, fully mature ducks and geese can reach their optimum maturity and fullness. Even more full and mature cashmeres have the potential to significantly increase fluffiness. Mature birds are just a prerequisite for high loftiness. An important factor for the further improvement of the bulkiness of down feathers is down processing. Early down is a product after slaughter, because the cashmere is small and fragile. Therefore, there is no mature technology to improve the fluffiness. The downs need to be finished, washed and dried before they can be used on clothing and sleeping bags. These processes are important means to increase the dullness of down feathers. “In fact, the increase in feather loftiness was rather slow. In the 90s, the down products of MARMOT reached 725 fluffiness. After 2000, it remained at around 800, but the 900 fluffiness was in a very short time. It turned out that the origin of these velvets has not changed much, Russia, Poland, and the Andes.There is no publicly available data showing that human breakthroughs in bird breeding have resulted in a great feather (feather) quality of birds. In the picture below, you will see 900 fluffy velvet compared to 800 fluffy fleece's volume leap, but this leap is really getting better and better?
This photo is believed to have seen many people. This is a photograph of mont-bell promoting its own down products. The earliest use of the 900FP down is his home. The photos can be used to visualize the differences between different grades of cashmere. After 2006, the Japanese and US Department of Standards adopted a wet steaming method as the testing standard for down and fluffiness. The wet steaming method can completely dry the down fluffy capacity, and the 850 fluffiness obtained by the dry steaming method can easily reach 900 fluffiness under the wet steaming method. In other words, the duvet under this condition is pushed to its limit. ! PATAGINIA, The Noth Face has even launched 1,000 fluffy down products. If it is even higher, we can also figure out ways to squeeze down the potential of down. For example, medicines and crossbreeding have been used to improve the "species of some birds" and then use the method of live pulling to obtain better down. Looseness is only a numerical indicator, and the size of the indicator depends entirely on the means used. The difference in fluffiness and actual fluffing capacity obtained by wet steaming is very large. It is no secret that the fluffiness of down feathers is increased to 900 by wet steaming method. The reason why fluffiness is completely mythological today is that many people are not aware of actual down comfort. There is no inevitable causal relationship between fluffiness and fluffiness, and the growth of fluffiness is far behind the speed of the development of down and fluffy standards.
At present, RAB, which manufactures extreme sleeping bags, has clearly resisted the 900 fluffy duvet produced by live pulls. When we pursue higher and higher fluffiness, have we ever wondered what the need for fluffiness brings us? Is it warm or vanity? "FILLPOWER" has been misunderstood by myths and, of course, this is what many brands want to see.
Having said so much, if you look back at Tian Shi's sleeping bag, do you still think that the 650FP's index is low? The 650FP is a comprehensive tipping point that balances warmth, support, and water repellency. In this high-loft, mythological world, it's not easy to be conscientiously down.
Third, static display
1, compressed state
2, storage state
3, use status
It can be seen that the sleeping bag is full and fluffy
Contrast with 800FP sleeping bag before lifting
After 10 minutes, the difference is not obvious after a slight shake up.
Fourth, on-site assessment
Assessor: Desert Sea
Subject of evaluation: Tianshi Platypus 400 down sleeping bag
Time: 2016.6.09-6.11
Location: Changbai Mountain Jinjiang Grand Canyon
Use the altitude: 1150m-1284m
Working temperature: 5.9°C-15.4°C
The Jinjiang Grand Canyon, also known as the Changbai Mountain Grand Canyon, is located on the west slope of Tianchi, Changbai Mountain, Fusong County, Baishan City, Jilin Province, and is more than 20 kilometers away from Changbai Mountain Tianchi. The canyon is 70 kilometers long and is V-shaped. It has a width of about 300 meters and a vertical depth of 160 meters. Most of the two sides of the strait are steep cliffs, steep slopes, and unique lavas in the canyons. Shifenglin is a large landscape of the Changbai Mountain Grand Canyon and is known as the “Volcanic Natural Lava Bonsai Gardenâ€. The route we traveled was from the peak-collar course in Manjiang Township, Fusong County, to the edge of the canyon and down to the bottom to explore the undeveloped second-level Magnolia Falls. Finally, we crossed the old pig farm from Laoling Forest Farm and passed through the road. In the primeval forest, there were no traces of human development. There was a flood of wood, mosquitoes, swamps and rivers, and occasionally flying several pheasants and pulling out a scorpion.
The weight of the Tianshi sleeping bag was weighed before departure, including 855 grams of the compression bag, which basically matched the official data of 820 grams (L code).
Instead of using the compression bag in the actual bag, the sleeping bag is placed in a waterproof bag. Compression is good.
In order to test the warmth of the sleeping bag under different sleeping conditions, the two cushions of Therm-a-rest, one Neoair xlite cushion, one Z-lite sol egg nest, three days of food and one day of drinking water, and one The total weight of the static rope (1.6KG) used for the descent is 15.6KG, and the weight of the so-so is fairly good.
On June 9th, the camp was allocated 1284M above sea level, 10°C before going to bed at 10 o'clock in the evening and 5.9°C at 3 o'clock in the morning (measured by the Casio PRW-6000 wristwatch). The lowest temperature in Fusong County was 11°C. 700M, the measured temperature meets the law of temperature drop of 6 degrees per km.
Because I didn't feel cold when I was asleep, I didn't have a zipper on my shoulders, I didn't wear a cap, I had a strong warm underpants, and I had a Pulland quick-drying long sleeve. Today I used a Neoair xlite cushion.
Woke up at 2:50 in the morning and I felt slightly sweaty. When I opened the zipper and gasped, I measured the temperature at 5.9°C. The outside should be quite cold and continue to sleep. There is still no cap.
Because it is grassland, the surrounding weeds are very high, and the humidity is very high. In the morning, some condensation occurs in the accounts, and the surface of the sleeping bag is slightly damp, but it does not affect the warmth and the fluffyness of sleeping bags. It can be seen that the moisture-proof sheet plays a very good protective role against down. This sleeping bag has a nominal temperature range of -3 to 20 and a comfortable temperature of 0 degrees. It is still slightly hot at around 10 degrees.
On June 10th, the camp set aside 1150M, before going to bed at 15.4°C. At night, the minimum temperature was 9.4°. There was still no cap on the night. Since it felt slightly hot on the night before, only shorts and half sleeves were worn tonight. Today, Z-lite sol egg nests were used to loan air cushions to teammates, and they also took teammates' mountain springs and put them under Z-lite sol.
Sleeping bag fluffs faster after it is removed from the waterproof bag
As the camp underground is thick and dry, the pine needles are relatively dry, and there are less weeds around the trees. The humidity is small. In the morning, the inside and outside of the tent are dry, and the sleeping bag is relatively dry. This may be the reason why you wear less. Sweating, but there is no cold feeling.
V. Summary
Through two days of field tests, this platypus sleeping bag is quite satisfactory, light weight, small size, high down quality, no hard stem debris, no use of a little drilling velvet twice, design style fitting human space, not repressed nor empty The temperature scale is more accurate, the moisture-proof film is a design highlight, and the down and fluffy capacity is excellent. The bulkiness of the 650FP takes into account the fluffiness and support of down feathers. The price of duck down is more suitable for the public, although the taste is slight, and it is very slight after drying in the sun. No smell. The inadequacy of the storage bag used to keep it slightly is not conducive to full fluffy down, I hope to increase the storage bag.
Share some photos of Grand Canyon to end this assessment.
Outdoor Sofas Furniture
Sofas furniture that is three seat seat, you can sit together with your friends or family together, or lie down for a lunch rest. Completely comfortable sofas furniture are perfect fit for arid and coastal climates alike.
· Handwoven premium resin wicker UV resistant
· Rust-resistant powder-coated frames
· Cushions included with 30 density sofa foam
· Versatile tempered glass tables
· Cushions also available with 100% waterproof fabric.
Outdoor Sofas furniture with different style and hand weaving
If you have any questions, please contact with us directly. Outdoor Sofa Furniture are produced
by Golden Eagle Outdoor Furniture With High Quality and Good Appearance. Welcome you can visit our Factory.For any inquiry,Please send mail directly to us.
Aluminum Patio Furniture,Garden Furniture Cushions,Contemporary Outdoor Furniture,Garden Outdoor Furniture PE Wicker
Golden Eagle Outdoor Furniture Co., LTD. , https://www.gepatio.com