As we all know, when producing sponge, even if the opening rate of sponge is more than 95%, there is still a lot of residual membrane between the meridians of sponge. When the light hits the surface of the sponge, it can be seen as dotted with points of reflection. This phenomenon affects the perception of sponges. Especially for coloring sponge, the existence of film, resulting in color material itself color distortion, such as: black is not black, red is not red. In order to solve this problem, many sponge factories have made a lot of attempts on the production process and formula, and achieved certain results, but this fundamentally can not completely solve the problem. Some experiments have pros and cons. For example, when hair black cotton, improve the amount of black paste, sponge blackness increases, the cost also increases; In addition, the increase of the amount of black color paste to the foaming process control has brought adverse effects. After all this effort, the product is still “shining”. In view of this, we will develop a film removal and brightening agent to remove the film remaining in the meridians after the maturation of the sponge, which will be helpful to improve the quality of the sponge.

Sponge is an industrial packaging product that can be seen everywhere. It is related to people’s clothing, food, housing and transportation. It can be said that many people cannot live without sponge. However, people sometimes do not know how to choose sponge products when faced with a wide variety of products. Today we’re going to talk about filter sponges. The filter sponge is a high-tech material. It is designed for astronauts to help relieve stress during takeoff, landing and flight. Because of the pressure relieving characteristics of filter sponge, filter sponge is widely used in many places. Let’s take a look at the hidden side of filter sponges. The difference between the filter sponge and the traditional sponge and the fat cotton: The filter sponge can absorb the weight of the body and feel like floating in the air. Filter sponges follow body shape instead of fighting body shape like sponges and polyester cotton, making people more attuned to it. Full body, neck, and waist support can be provided by allowing the spine and joints to rest in their natural physiological state. Release stress completely and enjoy a sense of weightlessness. The material of the filter sponge is anti-bacterial according to the European standard. Its high-density material can effectively resist the infiltration of sweat and odor, which can ensure that it is in line with personal hygiene and is harmless to human health.

The scientific name of nano sponge is melamine foam, melamine sponge, also known as high-tech foam, a clean, magic sponge, magic sponge, melamine sponge, is a new type of foam with high pore rate three-dimensional mesh structure. Its unique chemical structure and three-dimensional network crosslinking system make it have unique chemical and physical stability, in the weak acid and weak base environment will not aging, decomposition, no residual free formaldehyde, its hygiene can meet the requirements of food hygiene, with good secondary processing ability. Sponge magic wipe using physical decontamination mechanism, relying on the nano-level capillary hole structure in the sponge, in the wipe process automatically adsorb stains on the surface of the object, like countless ultrafine vacuum cleaner in the work, only need water, completely does not rely on any chemical detergent to help degrade, so it is called magic. Explain capillarity: The surface of a liquid resembles a tensioning rubber film; if the surface is curved, it tends to flatten. So the concave exerts a pull on the liquid below, and the convex exerts a pressure on the liquid below. The surface of the infiltrated liquid in the capillary is concave, and it exerts a tension on the liquid below, making the liquid rise along the wall of the tube. When the upward tension is equal to the gravity force on the liquid column in the tube, the liquid in the tube stops rising and reaches equilibrium. The same analysis can also explain the phenomenon of non-infiltrating liquid descending in the capillary. Magic rub is the use of liquid surface to solid surface attraction effect, that is, to achieve physical decontamination.

Nano-sponge magic wipe is completely non-toxic and can be used to wash dishes and cups. Sponge dishwashing generally saves cleaning agent, and the ability to absorb hidden things is very strong, is a very good dishwashing appliance. Sponges are porous materials that absorb water well and can be used to clean things. In the selection of sponge, mainly to its touch and elasticity as the primary factor. It should be soft to the touch and malleable. Many people think that the magic magic rub (also known as nano sponge) toxic is it formaldehyde, but after a series of experiments said that nano sponge and formaldehyde did not exceed the standard, itself has good physical stability, is insoluble in water, the parameters are in line with environmental standards, all can be assured to use. But just because it’s not poisonous doesn’t mean it’s edible. Keep it out of reach of children to avoid ingestion. Magic wipe formaldehyde is not toxic three reasons: 1. One of the characteristics of formaldehyde is very soluble in water, usually with nano sponge magic scrub bowl is soaked in water and then used, and the pore structure up to more than 95%, easy to absorb water. So even if there is some formaldehyde inside the nano sponge magic wipe, dissolved in water after the residue is very little. And formaldehyde is not used in a confined space, so much less enrichment, it has dissipated. 2. The use of magic wipe must be water, so that of the formaldehyde has been removed, as long as the entrance of the bowl dish with water rinse several times, more ventilation to dry, you do not have to worry about formaldehyde will remain in tableware, eating utensils. 3. Some people are worried about the use of nano sponge magic wipe is very close to us, it will not let the formaldehyde concentration of the surrounding air increase and affect our health? To answer this question, let’s do an experiment: the process of the experiment is very simple, that is, in a room with al one desk, test the formaldehyde concentration in the air of the room itself, and then put the nano-sponge magic wipe about 250px away from the test box to test whether the formaldehyde concentration in the air increases. Nano sponge formaldehyde test shows that the formaldehyde content is still in 0.03~0.05/m3, just opened nano sponge is when the concentration of formaldehyde content is high, but we are in use when nano sponge is used after soaking in water, formaldehyde dissolved in water is not so high content. 4. Nano sponge magic rub although contains formaldehyde, but formaldehyde is in the standard range of values, do not blindly say that there is formaldehyde release is not qualified. There are a lot of things containing formaldehyde, as for how much will be the consequences, or not exceed the standard.

Polyvinyl alcohol medical grade microporous sponge is a kind of polymer material with absorbent performance and extremely soft surface when contacting with human body, which can be completely naturally degraded. Its suction performance is not only in the faster suction rate, but also reflected in its super suction ratio. Under normal circumstances, one gram of PAV sponge can absorb more than seven times its own body fluid. Therefore, this kind of material is widely used in modern surgical operation to replace the absorbent cotton and defatted gauze, and is widely used in international clinical surgery. Polyvinyl alcohol medical-grade macroporous sponge suction fluid has performance, high opening rate, high strength, and extremely soft surface when in contact with the human body. It is widely used in clinical trauma surgery, especially in the field of negative pressure drainage. Waste macroporous sponges can be completely naturally degraded and will not cause pollution problems to the environment. In general, one gram of PAV macroporous sponge without excipients can absorb more than nine times its body fluid. This kind of material is used to replace the absorbent cotton and the absorbent gauze in the surgical operation, which can solve the problem that the absorbent cotton or the absorbent gauze needs to be replaced constantly in the clinical operation. Medical polyvinyl alcohol sponge is made of polyvinyl alcohol molecular chain cured by cross-linking agent, without fiber filament or fiber head, and there will be no fiber falling off in use. During eye surgery, ear, nose and throat surgery, brain neurosurgery craniotomy and thoracic surgery heart surgery, it does not affect wound healing due to fiber shedding. According to different clinical uses, if appropriate excipients are loaded into the sponge, it can also promote wound healing. At the same time, the sponge has good mechanical properties and can be processed into various shapes according to different surgical needs. A blood-sucking sponge or sponge rod in the shape of a spear used especially in microsurgery, which can quickly absorb microscopic bleeding and ensure the operation is correct. Fold edit this section method There are mainly physical foaming method, chemical foaming hair and physical and chemical combination of foaming method three methods. But at present, the production technology of PVA sponge absorbent material ly adopts the backward starch filling foaming method. That is, the starch is filled into the PVA solution at the appropriate temperature, and then the starch is washed off after the PVA is cross-linked and solidified at a certain temperature. When this method is used in production, the environment pollution is serious, the follow-up treatment process is long, the starch can not be completely cleaned, and the starch and acid catalyst can not be fully recycled, which is not conducive to saving resources and cutting costs. Fold edit this section production technique There are mainly physical foaming hair, chemical foaming hair and physical and chemical combination of foaming method of three methods. But at present, the production technology of PVA sponge absorbent material ly adopts the backward starch filling foaming method. That is, the starch is filled into the PVA solution at the appropriate temperature, and then the starch is washed off after the PVA is cross-linked and solidified at a certain temperature. When this method is used in production, the environment pollution is serious, the follow-up treatment process is long, the starch can not be completely cleaned, and the starch and acid catalyst can not be fully recycled, which is not conducive to saving resources and cutting costs.

EVA rubber and plastic products are new environmental protection plastic foam materials, with good cushioning, earthquake resistance, heat insulation, moisture-proof, chemical corrosion resistance and other advantages, and do not absorb water. EVA rubber and plastic products can be processed and formed by design. Its shockproof performance is better than that of polystyrene and other traditional foaming materials, and it meets the requirements of environmental protection. It is one of the choices for export products. Thickness: not less than 1mm, not 56mm (whole plate), error range ±0.2mm. Hardness and color: Color EVA commonly used hardness: 38 degrees, black and white color 25 38 45 55 60 70 degrees. Color EVA foam color: gray, yellow, purple, red, blue, coffee, green, orange, etc., environmental protection EVA foam board black, white, color: any color on the international color card can be customized. After cutting edge, high temperature welding can be made into any length of the coil, according to customer requirements can be divided into 0.5mm~50mm thickness can be mounted, composite double-sided tape, width into several strips Features: SHOCkproof: HIGH resilience and tension resistance, strong toughness with shockproof/buffering properties. Environmental protection: EVA raw material itself is environmental protection material, biodegradable. Corrosion resistance: resistant to seawater, grease, acid, alkali and other chemicals corrosion. Heat preservation: EVA has good heat preservation and cold resistance, cold resistance and insolation resistance. No smell: EVA is environmental protection no smell material, suitable for all kinds of products packaging lining. Application: Suitable for electronic products, household appliances, hardware tools, toys, crafts, tourism products, cultural articles, cosmetics, transportation shock absorption and so on