How to choose a memory foam pillow?

St. Fully Bedding: Hot Kiss

Memory pillows, also known as space memory pillows, zero-pressure memory pillows, slow-recovery sponge pillows, and more.

Polyether polyurethane was developed by NASA to resolve the pressure on astronauts, and then gradually applied to various medical and civilian products, especially pillows made of this material, which have viscoelastic properties and can be placed with the head and neck. The change is automatically deformed and kept in close contact with the neck at any time, in particular, it can fix the head and prevent the head from slipping and causing "stiffing".

At present, various polyurethane materials can be found on the market to produce pillows, and the prices are also very different. Many consumers complain that the pillows do not rebound after purchase, and there is no texture on the hands. The pillows become too hard or too soft as the weather changes. Wait. In fact, high-grade slow-rebound material pillows have many links that are difficult for general manufacturers to use in their raw materials, production processes and formulations.

Consumers can identify high-grade slow rebound materials from the following aspects:

One: Density: Density is the basic index of high-grade slow-rebound material. Generally, the density of polyurethane can be 70-100, and the cutting process can be 40-70. If it exceeds this range, it may be false. There is a density of 130-150 on the market, which is almost unrealistic for pure polyurethane producers. The only possibility is to add other things, such as greater than polyurethane, such as talcum powder. From the perspective of a professional polyurethane sponge technician, 110-density pure polyurethane is possible, and other possibilities are not present. In addition, even products of the same density will vary greatly, mainly due to differences in formula, process and raw materials. That is to say, high-grade slow-rebound materials must be high-density, but only high-density materials are not necessarily high-grade materials. ;

Two: rebound time: Many consumers think that the longer the rebound time, the better, this is a misunderstanding. A good rebound time is about 3-5 seconds. Too short to achieve a slow rebound effect; too long will make the body stiff;

Three: Manufacturing process: There are two manufacturing processes for slow rebound: cutting and molding. Cutting is the finished slow-recovery sponge that is cut into a Pillow. Because the molding is by cutting instead of the mold + additive, no other additives are added, so even the pure polyurethane density can only achieve 40-70 density. Molding is made by a series of processes such as adding additives, foaming, and mold pressing. The addition of other additives, including foaming and softness, increases the density by 70-100. Feel good.

Four: feel and temperature induction: high-grade slow rebound sponge feels very comfortable, pinching up is like the feeling of kneading dough. At the same time, this high-grade slow rebound has good temperature sensing, which will become soft and hard with temperature changes. You can see the fingerprints without putting pressure on your hands;

Five: Service life: Polyurethane Memory Foam Pillow is mainly related to pure polyurethane. If it is pure polyurethane, it should not be deformed for more than 5 years, but if it is added with talcum powder for increasing density and weight, pillow quality Poor, usually only used for 1 - 2 years.