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Light pollution is one of the problems in the development of the lighting industry today. Light pollution refers to misuse of lights due to unreasonable application of outdoor lighting products. The same picture of a city night illumination may look different in the eyes of two generations. For the parents, this may be a symbol of economic development, or it is just light pollution.
The unprecedented brilliance of the lights on the earth, as seen from the photos returned by the satellite, most parts of Europe and the United States have been shrouded in light, and the whole country is shining. However, the starlight slipped away from the night sky. In space, the Earth is visible 24 hours a day; and the inhabitants of the Earth can no longer see space.
The night sky is far from the stars of centuries ago, and the stars are sparse and blurred. The bright and cheerful brushstrokes of Van Gogh's "Star Moonlight Night" now seem to be the painter's imagination, and the Milky Way in English cannot represent the Milky Way in the sky.
In Europe, the 99 night sky inhabited by people has been polluted by light and lost the possibility of seeing the natural landscape of the Milky Way. In the United States, due to light pollution, the country's annual economic losses amounted to 6.9 billion US dollars, resulting in nearly 66 million tons of carbon dioxide emissions, equivalent to 9.5 million vehicles a year. In many cities, the number of economic losses caused by unreasonable lighting design is quite horrible. There are more than 6 billion US dollars in the United States alone, and this phenomenon is more common in China.
Light pollution is also harmful to health. Everything on earth follows the rhythm of day and night, and excessive light can disrupt the migration, foraging, reproduction, and sleep cycles of animals. Among the most polluted animals affected by light pollution are migratory birds and sea turtles. Long-term lighting will affect migratory birds to determine the migration path, and even worse, get lost in the sky, so now the migratory time of migratory birds is greatly advanced.
For example, in the animal world, the light from humans can mislead the mothers of the turtles that spawn and let them swim back to the sea in advance. In general, turtles lay their eggs in the dark shadows of the dunes in the moonlight, but if there are town lights around, they will interfere with the moonlight. Brightness can also be harmful to human health: long-term fatigue, migraine, and sexual dysfunction are all associated with excessive exposure to light.
In the environment of human survival, strobe office fluorescent lights, computer screens, mobile phones and tablet screens expose office workers to excessive light every day, and the darkness of sunset has lost its power. For a long time, the depression caused by dry eyes, vision problems, headaches and migraine headaches, sporadic mood swings, endocrine disorders, and loss of cortisol is accompanied by modern office workers.
In addition to direct impact, lighting has made human demand for medical attention, treatment, and drugs even stronger. You can buy health insurance and make your pockets easier. However, the lights that we have to touch every day, the light pollution we face every day, how to use these lights is the cure.
Why don't we return to the darkness? In fact, you can change some low-power bulbs, and try to turn off the lights when not in use.
We must know that human beings cannot exchange today’s happiness at the expense of the future. The earth is not inherited from our ancestors, but borrowed from our children. Sustainable development means meeting current needs. It does not destroy the development of the ability of future generations to meet their needs. As a beautician of urban lighting, that is, lighting designers, they should play their due morality and responsibility for the survival and development of the environment. As the promoter of environmental protection, energy saving and innovation ideas, the Aladdin Magic Lantern Award will continue to set sail in 2014, and select more projects, products and people who meet the selection criteria to promote the healthy development of the lighting industry.
Polyurethane adhesives are the total name of the adhesives which raw materials are PU resin.
My adhesives products are including flexible package adhesives and hot melting adhesives.
Flexible package adhesives can be used in the lamination of different films, such as OPP/PET/NY/AL and some other plastic films. Flexible package adhesives can be divided into solvent and solvent-free. They can also be segmented into different types due to their performance. For examples, boiling water resistance, steam resistance, fast curing, great matching with ink and so on.
Our hot melting adhesives are the moisture cured polyurethane resins. They can be used in textile lamination, plate joint, profile cladding and paper-plastic composition. Different series with different performance, such as high initial tack, good flowing property, good intensity and so on.
There are several types of adhesive that can be used for shoes, depending on the material and the type of repair needed. Here are some commonly used adhesives for shoes:
1. Shoe glue: This is a specialized adhesive designed specifically for shoe repairs. It is commonly used for bonding different shoe materials, such as leather, rubber, fabric, and vinyl. Shoe glue is flexible, durable, and waterproof.
2. Super glue: Also known as cyanoacrylate adhesive, super glue is a strong and fast-drying adhesive that can bond various materials, including shoes. However, it may not be suitable for all shoe materials, and it can become brittle over time.
3. Epoxy adhesive: Epoxy is a two-part adhesive that provides a strong and durable bond. It is commonly used for repairing soles, heels, and other shoe parts. Epoxy adhesive requires mixing the resin and hardener before application.
4. Contact cement: Contact cement is a strong adhesive that creates a bond when two surfaces are pressed together. It is commonly used for shoe repairs, especially for attaching soles. Contact cement is available in both water-based and solvent-based formulas.
5. Shoe repair tape: In some cases, shoe repair tape can be used as a temporary solution for minor repairs. It is a self-adhesive tape that can provide a quick fix until a proper repair can be done.
When using any adhesive for shoe repairs, it is important to follow the manufacturer's instructions and ensure proper ventilation. Additionally, it is recommended to clean and prepare the surfaces to be bonded for better adhesion.
Polyurethane Adhesive,Surface Sizing Agent,Hot Melt Textile Adhesive,Pu Glue For Book Binding
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