Development and use of cut pipe stuffing made of resin for low-repulsive pillow that instantaneously stops movement and flowing and gives gentle feeling to fascia at the time of use of pillow by producing and mixing, by appropriate amount ratio, cut pipe having high movement and flowing property in pillow and cut pipe having no movement and flowing property in pillow by using resin containing slip agent

Abstract

To develop a technology of producing and mixing two types of slippery cut pipes made of resin by using a resin containing a slip agent, and capable of stably maintaining a height of a pillow by instantaneously stopping movement and flowing of stuffing when the slippery cut pipes are stuffed in a pillow as pillow stuffing and used.SOLUTION: The present invention was devised by sudden inspiration from one scene. When a resin containing a slip agent is used and slippery cut pipes mixed with chain-shaped cut pipes are used by an appropriate amount ratio, the chain-shaped cut pipes having several continuous pieces not causing movement and flowing, stuffing performs almost no movement and flowing on the contrary to a characteristic of the slippery cut pipes. By mixing the two pieces of contrary stuffing by an optimum mixture ratio, pillow stuffing having a characteristic of stably maintaining low-repulsive feeling of the slippery cut pipes and a pillow height is achieved.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] Among the pillow filling materials currently in use, this technology involves the development of a resin cut pipe filling material for pillows that has an outstanding low-resilience feel that is gentle on the fascia, and also has the feature of maintaining a stable pillow height when the pillow is in use. [Background technology]

[0002] About 30 years ago, when I first started producing filling materials for resin cut pipe pillows, pillows using molded urethane foam were extremely popular on the market, as they were considered to be low-resilience pillows that were gentle on the cervical spine. However, using urethane foam to achieve gentle low-resilience required the use of soft urethane resin, which had the major drawback of causing the head to sink in over time. Furthermore, in order to prevent the head from sinking, a harder urethane resin was used, which resulted in a loss of low-resilience properties, and the sales boom faded after a few years. At the time, I noticed that the feeling the moment you put your head on a molded urethane foam pillow sold as a low-resilience pillow was very similar to the feel of a water pillow. Although water pillows are filled with water, which has very high fluidity, your head does not sink into the pillow when in use, while molded urethane foam pillows sink in. When we investigated the reason for this difference, we found that the opposite phenomenon would occur with a water pillow, which has inherently high fluidity, and a urethane foam pillow, which has no fluidity at all. However, after examining molded urethane, we found that if you prioritize low resilience with molded urethane, you need to use a soft urethane foam resin. As a result, the urethane foam will collapse under the pressure of your head's weight, and it will no longer be able to maintain a stable height. Conversely, to maintain the height of the pillow when in use, you naturally need to use a slightly harder urethane foam resin that is strong enough to withstand the pressure of your head's weight, and you will no longer be able to achieve a low-resilience feel. With urethane molding, it is impossible to give the cushion a low-resilience feel and enough resilience to maintain its height when in use, given the two opposing conditions that make up the material. So, a water pillow feels soft when in use. This is because the filling has high mobility, but the big difference is that water pillows are used in a medical environment, so the rubber pillow bag prevents it from losing its shape, and so the entire surface of the pillow where the head rests is made of thicker, sturdier rubber than cloth, whereas pillows used by ordinary people are made of cloth, which is prone to losing its shape. With a rubber pillow, the water in the filling stops with only a slight amount of mobility, but with ordinary cloth pillow bags, if a fluid filling is used, the pillow bag will lose its shape and the pillow will not be able to maintain a stable height, which is a problem. From the results of this study, we came to the conclusion that we should find a filling material with high mobility among the many materials used to produce fillings, and devise a way to stop that mobility to the extent necessary for pillow use.First, we searched for a filling material with high mobility, but we were unable to find one for many years. Five years ago, I was searching for a pillow filling similar to a water pillow but couldn't find one. Then, a supplier of resin raw materials for cut pipes said, "I'll give you a discount if you buy 20 tons of raw material for slip agent-containing film. It should work if you mix it with your conventional resin." I decided to buy it. I mixed about 10% of the material with the conventional resin, but then I remembered the water pillows. I experimented with using 100% resin with slip agent, changing the take-up roll to polyurethane resin, and produced about 10 kg of conventional cut pipe filling material. I immediately used it as a pillow, and was surprised to find that my head sank significantly, with a greater-than-expected amount of movement toward both ends of the pillow. When I used the pillow and it stopped sinking, I felt some pressure on both sides of my head. However, apart from this, I was again surprised at how similar the feel was to a water pillow, so for testing purposes I created a tiny cloth pillow side bag measuring 15cm x 20cm that would fit under the head and restrict the space for the filling material to move, using this resin cut pipe with slip agent (hereafter referred to as Zuru Zuru Cut Pipe).When I tried using it with the Zuru Zuru Cut Pipe almost fully stuffed, I was once again surprised and impressed by the softer, low-resilience feel it had than a water pillow. Based on the above results, we were convinced that if we could develop a method to stop the migration of the material without damaging the feel of the cut pipe inside the pillow bag, we would be able to develop and complete the dream memory foam pillow, and we decided to go ahead with the development. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2007-7432 Summary of the Invention [Problem to be solved by the invention]

[0004] The challenge is to instantly stop the movement of the slippery resin cut pipe pillow filling material when the pillow is in use, and to complete a true low-resilience pillow that is gentle on the fascia, as well as to develop and complete a means to maintain a stable pillow height when the pillow is in use. [Means for solving the problem]

[0005] On my way to the factory today, I stopped briefly in front of a crosswalk and saw the long, curled, spiral-shaped hair of a female student crossing the street. I instinctively realized it was it. To avoid unnecessarily impeding the flow and feel of the Zuru Cut Pipe, the main pillow filling, I came up with the idea of ​​producing a chain of several Zuru Cut Pipes that would not flow and would provide the same gentle, low-resilience properties as the Zuru Cut Pipes, using the same slip agent-containing resin as the raw material resin used to produce Zuru Cut Pipes. I decided to produce this. I thought that mixing these two types of Zuru Cut Pipes in the optimal ratio would be the solution to our development challenges.

[0006] Experimental equipment for producing chained slurping cut pipes was constructed, and with the aim of maintaining as uniform a mixture as possible of the chained slurping cut pipes and several chained slurping cut pipes within the pillow pouch, and with the understanding that the greater the number of chained slurping cut pipes, the greater the migration-stopping force, two types of slurping cut pipes and chained slurping cut pipes were produced for use in the experiment, and considering it a necessary prerequisite to mix and stir the two types of slurping cut pipes as uniformly as possible, the specifications for the test chained cut pipes were set at 6 mm in diameter and up to approximately 4 cm in length (there are no restrictions on the diameter, length, or thickness of the cut pipes). The following three types of chained slurping cut pipes consisting of 2, 3, or 4 pieces were produced and packed into cloth pillow pouches for use in a test, and none of the three types of chained slurping cut pipes caused any migration whatsoever. As a result, for the chained cut pipes 1, which consisted of three types (not limited to three types) of 2, 3, and 4 pieces, we prepared contents by mixing 2 times, 3 times, and 4 times the amount of slurping cut pipes, and since the migration of the contents should begin at some mixing ratio, we conducted an experiment to determine the point in time at that ratio as follows. First, we produced 5kg of each of 2, 3, and 4 chain-shaped slurping cut pipes and 30kg of slurping cut pipes, and prepared for an experiment to find the optimal mixing ratio. For each of 2, 3, and 4 chain-shaped slurping cut pipes, the slurping cut pipe ratio was gradually increased to 2, 3, and 4 times, and we predicted that at some point during the mixing process, the slurping cut pipes would move from a stopped state to a flow, so we conducted the next experiment.

[0007] A1 represents 1 ratio of 2 chained slither cut pipes, B1 represents 1 ratio of 3 chained slither cut pipes, and C1 represents 1 ratio of 4 chained slither cut pipes. The ratios of slither cut pipes to be mixed with A1, B1, and C1 are prepared in 2x, 3x, and 4x ratios, so they are labeled D1 for 2x ratio, D2 for 3x ratio, and D3 for 4x ratio. Filling materials were prepared in each mixing ratio and stuffed into pillows, and the results of an experiment are as follows. (Mixing ratio 1) In the case of A1:D1, when I placed my head on the pillow, I didn't feel any movement of the filling material, and my head didn't sink into the pillow. However, it wasn't a satisfying experience. (Mixing ratio 2) In the case of A1:D2, the amount of cut pipe was increased compared to (mixing ratio 1), which caused the filling material to move around and made the pillow height feel a little unstable. (Mixing ratio 3) In the case of A1:D3, the amount of cutting pipes was further increased, which caused the contents to move and the height to become unstable. (Mixing ratio 4) In the case of B1:D1, the movement of the filling material stopped and the height of the pillow when in use stabilized, but there was a sense of inconsistency in the mixture of filling materials when the pillow contacted the neck and head, and there is room for improvement. (Mixing ratio 5) In the case of B1:D2, there was almost no movement of the filling material, and the pillow height remained stable when in use. The result of the experiment was even softer than that of a urethane foam memory foam pillow, exceeding expectations. (Mixing ratio 6) In the case of B1:D3, there is definitely more movement of the filling material than in B1:D2, and there is also some sinking of the head. (Mixing ratio 7) In the case of C1:D1, there is no noticeable movement of the filling material, but it feels softer and smoother to the touch, which is inferior to (mixing ratio 5). (Mixing ratio 8) In the case of C1:D2, there is almost no noticeable movement of the filling material, and the pillow height is stable when in use. Compared to B1, C1 chain cut pipes show a slightly more uneven mixture, but this is something that can be considered. (Mixing ratio 9) In the case of C1:D3, it was found that uneven mixing is likely to occur between the four chained slurping cut pipes and the slurping cut pipes, and therefore it is unsuitable.

[0008] The experimental results showed that the mixture ratio of B1:D2 (mixing ratio 5) is suitable for filling materials for low-resilience pillows.

[0009] When we experimented with a memory foam pillow filled with a resin cut pipe filling material containing a slip agent (mixing ratio 5), we were surprised to find that it had a greater memory foam effect than the development goal, and that the pillow had a softer feel than memory foam pillows that had been sold up until then.We decided to find out the mechanism that produced this effect and pursue the content that would produce the effect, as we needed to utilize it in the production of reliable products.

[0010] We conducted a detailed examination of the filling structure inside the pillow that produces the soft, low-resilience feel. The results of this development experiment showed that a pillow with a surprisingly soft and gentle low-resilience feel was completed compared to memory foam pillows that had been available on the market up until now.Then, we investigated and elucidated the cause of this gentle low-resilience feel. Originally, when the resin slide-cut pipe was used as the filling material, it felt very similar to a water pillow, but if you compare the feel of the raw resin filling material between a molded urethane foam memory pillow and a resin slide-cut pipe memory pillow, the resin used to produce the cut pipe is clearly harder than the foamed urethane resin at the raw resin stage, and the foamed urethane film is thinner than the cut pipe. Therefore, when a pillow was completed using each material as the filling material, it was expected that the pillow filled with the resin slide-cut pipe filling material would feel harder, but the unexpected result that it exhibited a clearly soft and gentle memory pillow feel was noteworthy. This unexpected development effect and the initial development objective of being able to maintain a stable height when in use were the conditions, and while we were not surprised that the technological development achieved this initial objective, what surprised us was that we had completed a true memory foam pillow that is softer and gentler than the feel of conventional memory foam pillows. The technology that makes it possible to give the pillow user an ultra-low resilience feel is as follows: The first technology required was to mix the highly fluid, slippery cut pipes of the present invention with the chain-like slippery cut pipes that do not cause any fluid movement even when heavy pressure is applied to the head from above in an optimal ratio, and by developing technology that achieved the original goal of preventing unnecessary fluid movement of the filling material when the pillow is in use, it was found that a feel that surpasses that of previous memory foam pillows was obtained. After repeated experiments using the pillow filling material developed using this technology and further clarification and verification, it was discovered that the reason it produced an ultra-low resilience feel that exceeded the initial development expectations was that when a pillow was stuffed with a mixture of two types of resinous slither cut pipes and used, it was thought that the filling material hardly moved around based on the appearance of the pillow alone, but verification revealed that the state of the filling material inside the pillow before use, as shown in Figures 4 and 5, had become such that a large number of small gaps (4 in Figures 4 and 5) had formed around the periphery of the slither cut pipes (2 in Figure 4) and (3 in Figure 5) due to the mixture of slither cut pipes and irregular chain-shaped ... When the head weight pressure is applied to the filling from above while using the pillow, the pressure causes the cut pipes (1) in "Fig. 4" and "Fig. 5" to move slightly towards the gaps (4) in the filling that have been generated around the lower part of the head, causing the filling to stop moving. In sync with this slight movement of the filling, the filling in the lower part of the head, "Fig. 8" (8), which supports the head weight pressure, creates a light block phenomenon with approximately 3,000 cut pipe fillings, and the head weight pressure is reduced. By clarifying that 4 kg is supported by approximately 3,000 cut pipes, we believe that this is what creates the soft, gentle low-resilience feel. The result is 4 kg divided by 3,000, which means that each cut pipe provides support of approximately 1.3 g. At this point, the state of the approximately 3,000 cut pipes changes from the cut pipe shape shown in "Figure 6 (1)" before use to the cut pipe shape shown in "Figure 7 (1)" at the moment the head is placed on the pillow. When an average pressure of 1.3 g is applied to each cut pipe shown in "Figure 7 (15)," a slight block phenomenon occurs, resulting in a slight deformation. This phenomenon proves that each cut pipe has an average resilience of approximately 1.3 g to support the gravitational pressure of approximately 4 kg on the head. Here, we will explain the state of the pillow's filling before use using Figure 5. When a mixture of a cut pipe (1) and three linked cut pipes (3) is placed inside the pillow, it can be seen that there are numerous small gaps (4) around the cut pipes (3). When placing your head on the pillow in this state, the approximately 3,000 pieces of filling material within the approximately 2,000 cubic centimeters of filling material (Figure 8) (8) below the head's contact point undergo a slight deformation of the pipes, increasing their density under pressure and creating a slight block phenomenon, preventing the filling material from migrating. The state of Figure 8 (8) at this time is represented by the state of the filling material in Figure 7 (although the actual phenomenon is not as orderly as in Figure 7, but rather involves a degree of uniform deformation). We believe that the fact that this Figure 8 (8) portion deforms when pressure is applied from above, preventing migration and creating a blockage, is related to the soft, gentle, low-resilience feel, and we will continue our investigation. It was also confirmed that there had been no significant changes to the material structure of the approximately 8,000 mixed cut pipes remaining in the wide pillow other than this area. The sensation of using the pillow when using it should not be the sensation of resting your head on the entire pillow, but rather the sensation of the approximately 3,000 pieces of filling material (Figure 8) (8) gently supporting your head, but this was not what happened. In fact, the sensation was so unexpectedly soft and gentle that it almost gave the illusion of your head floating on the pillow, resulting in a low-resilience sensation. Further investigation revealed that, since the average head weight pressure of an adult is said to be 4 kg on the pillow, each of the approximately 3,000 cut pipes that make up the lower part of the head must be supporting a gravity of approximately 1.3 g. However, this head gravity should be supported by the resilience of the pillow's inner material (8), which has a resilience of approximately 4 kg, but when used, it does not feel like that much of a resilience. Contrary to expectations, the sensation that the head is floating can even be felt, giving the feeling that the head weight is being supported, indicating that there is some other phenomenon that has not yet been explained.

[0011] The state of the filling when the pillow is in use is shown in "Figure 8," and the state of the filling in (8) is shown in "Figure 7." When the head is raised from the pillow, the state of the filling should have returned to a state close to "Figure 6," but it was actually closer to "Figure 7." So, when the head was placed on the pillow again, the head only sank slightly into the pillow and the height of the pillow remained stable. Originally, the newly developed memory foam pillow is characterized by the large difference in the degree to which the head sinks into the pillow when used, compared to other memory foam pillows that use molded urethane foam or urethane chips as the filling material. When the user places their head on the developed pillow, the cut pipes in the pillow's filling material move slightly, but this movement stops instantly, creating a unique feature. As a result, we will continue to investigate the secret behind the soft and gentle feel that the pillow provides when used.

[0012] It is true that when using the developed pillow, the head weight of about 4 kg is supported by about 3,000 cut pipes (Fig. 8). However, because the pillow feels soft and gentle to the touch, We decided to investigate what happens to the filling material when the movement of the filling material stops instantly when the pillow is used. It was confirmed that the condition was as shown in Figure 8 (8). Upon closer inspection of the condition of this (8) part, it was discovered that the material inside the cut pipe, which should be prone to slipping when the weight pressure on the head is applied, had in fact increased in density and formed a light block. Next, we examined the changes in the material inside the cut pipe as it slid when the head was lifted from the pillow. As the pressure on the head was removed from the 3cm wide cut pipe at the bottom of the head, the cut pipe near the top layer of the material changed to a blocked state. We confirmed that the layer of cut pipe that came into contact with the head was the first layer, and that the second, third and fourth layers collapsed toward the top of the pillow. We then measured and calculated the rebound force of these four layers of cut pipe against the top of the pillow based on the degree to which the cut pipe had been crushed, as shown below. First, the topmost layer, the cut pipes, are almost restored, and with approximately 3,000 cut pipes supporting a head pressure of 4 kg, each cut pipe exerts a repulsive force of approximately 1.3 g. The second layer exerts 70% of the repulsive force of the first layer, or approximately 0.91 g. The third layer exerts 60% of the repulsive force of the second layer, or 0.54 g. The fourth layer exerts 50% of the repulsive force of the third layer, or approximately 0.27 g. A total repulsive force of approximately 3.02 g is the repulsive force per one of the approximately 300 cut pipes present in the 200 cm2 (square centimeter) contact area between the pillow and the head. This means that the person is subjected to a repulsive force of approximately 300 cut pipes x 3.02 g = 900 g. The magnitude of this repulsive force is thought to be the cause of fascial stimulation. As a result, there is no doubt that when a repulsive force above a certain value is generated, the fascia is stimulated, causing the muscles around the neck and shoulders to stiffen and restricting blood flow, resulting in stiff shoulders.To support this result, further testing was carried out.

[0013] The experiment conducted using "Figure 10" is as follows. First, we will examine molded low-resilience urethane foam pillows. 1. Remove the supports (E) and (F) and weight (B) and place a commercially available molded low-resilience urethane foam pillow (A) on the top pan (J) of the scale. 2. Place a 4 kg weight (B) on (A). When (B) stops sinking into the pillow, fix the upper pan (J) of the scale with the support (E). 3. Fix the stationary weight (B) with the support (F). 4. Set the scale (D) to 0 and then remove the support (E). 5. The upper pan (J) of the scale with the pillow on it will drop in the direction (G) and indicate the weighing scale (H). This indicates a rebound force of 3.6 kg, which is almost the same as when using a molded urethane foam pillow. Next, we will examine the memory foam pillow we developed. 1. Remove the supports (E) and (F) and the weight (B) and place the developed memory foam pillow (A) on the top pan (J) of the scale. 2. Place a 4 kg weight (B) on (A). When (B) stops sinking into the pillow, secure (B) with the support (E). 3. Fix the stationary weight (B) with the support (F). 4. Set the scale (D) to 0 and then remove the support (E). 5. The upper pan (J) of the scale with the pillow on it will drop in the direction (G) and indicate the weighing scale (I). This indicates a resilience of 0.9 kg, which is almost the same as when the newly developed memory foam pillow is in use. The results of this verification of resilience measurement prove that the difference in resilience between the molded urethane foam pillow (3.6 kg) and the newly developed low-resilience pillow (0.9 kg) is softer and gentler than previous low-resilience pillows.

[0014] At chiropractic clinics, it is explained that "Fascia is deeply related to muscle stiffness, so the trick to improving shoulder stiffness is to stretch the muscles and massage the neck and shoulders to relieve tension in the fascia, which leads to better sleep and improves blood flow." Therefore, we asked 10 people who visit a chiropractic clinic because they suffer from stiff neck and shoulders to try out the pillow we developed, and the results were as follows: They began using the newly developed pillow from the day they received massage treatment at a chiropractic clinic. Seven people answered, "Since I started using the pillow, I no longer have severe shoulder stiffness, and I no longer go to a chiropractic clinic. I've used many different pillows in the past, but this is a pillow I've never used before." The remaining three people also expressed their gratitude for the pillow, saying, "Since that day, I haven't had to worry about stiff shoulders, but I still go about twice a month." Based on the results of this experiment, experts have explained that while the industry has traditionally believed that various low-resilience pillows that are gentle on the cervical vertebrae are good pillows for relieving stiff neck and shoulders, in fact, stiff shoulders occur when the fascia around the neck and shoulders is stimulated to a certain extent during sleep, causing the surrounding muscles to stiffen and restricting blood flow, preventing recovery from fatigue and resulting in stiff neck and shoulders. Therefore, we confirmed that it is necessary to avoid stimulating the fascia, which humans cannot sense, during sleep. Based on this logic, molded urethane foam memory foam pillows have been considered to be gentle on the cervical spine and therefore effective for relieving stiff shoulders, but no clear evidence has been provided. Therefore, in paragraph 0013, we measured the resilience of the molded urethane foam memory foam pillow and the newly developed pillow, using the measuring device shown in Figure 10. The results showed that the resilience of the molded urethane foam memory foam pillow was 3.6 kg, while the newly developed pillow was 0.9 kg. This indicates that the newly developed pillow's resilience, which is one-quarter of the original, is consistent with the shoulder stiffness improvement reported in the user experiment. Furthermore, the improvement to one-quarter of the resilience of the molded urethane foam memory foam pillow is a surprising result.

[0015] We thought there must be a big difference in the basis for the clear difference of 4:1 in the pillow resilience measurement values ​​when using the molded urethane foam memory foam pillow and the newly developed pillow, and investigated the cause. The molded urethane foam filling itself is a block product with a soft feel. In this case, when a head weight of 4kg is applied to the pillow, the urethane foam part that comes into contact with the head is the part that supports that pressure, and the structure is not able to distribute the pressure. When molded urethane foam is used, in order to achieve a soft pillow feel, the urethane foam is made to be soft, so even though it feels soft when used, when the head sinks significantly into the pillow and the height stabilizes, the repulsive force of the initial head weight of 4kg continues to repel between the head and the part that comes into contact with the pillow without any fluctuation. In the developed pillow, when the weight pressure of the head is applied to the pillow's filling material, it would slip and move, but a device has been put in place to stop this instantly, and unlike molded urethane foam filling material, the approximately 3,000 cut pipe filling material below the head creates a slight blocking phenomenon when the pillow is used. In this case, there is a big difference in the structure in which the approximately 3,000 cut pipes in Figure 8 (8) distribute and support a 4 kg weight pressure, and when 4 kg of head pressure is applied to the pillow, the support of the approximately 3,000 cut pipes can be expressed in mathematical terms as 4 kg ÷ 3,000 pieces ≒ 1.3 g, which means that adjacent individual cut pipes each have a repulsive force of approximately 1.3 g in opposing directions, maintaining the blocking phenomenon, so the repulsive forces of all the individual cut pipes are offset, and it can be understood that the pillow user only feels a portion of this repulsive force in the filling material. So, how much repulsive force is felt by the pillow user? As a result of measurements using the repulsive force measuring device shown in "Figure 10" in paragraph 0013, a repulsive force of 3.6 kg was measured for a molded urethane foam low-repulsion pillow, and a repulsive force of 0.9 kg was measured for the developed pillow. The reason the newly developed pillow's resistance was 0.9 kg against a 4 kg head pressure is that when the head is placed on the pillow, the filling material moves slightly, but stops almost instantly, creating a slight blocking phenomenon. The resilience of the approximately 3,000 blocked cut pipes is offset by the pillow's internal structure, as the individual resilience of most of them is in opposing directions. However, the cut pipes located in the top four layers of the blocked filling, closest to the filling that comes into contact with the head, recover unevenly when the head is lifted from the pillow. Therefore, the measured resilience of 0.9 kg from the approximately 1,200 pieces of filling material in the top four layers below the area where the head comes into contact is undoubtedly a resilience value. When pressure is applied to the top of the pillow, the highly mobile filling material stops moving, creating a slight blocking phenomenon. The development of a resin cut pipe pillow filling with slip agent is extremely important in the creation of a low-resilience pillow. [Effects of the Invention]

[0016] Over 30 years ago, there was a sales boom with claims that cervical-spine-friendly memory foam pillows (with molded urethane foam filling) would relieve stiff shoulders, promote good sleep, and lead to healthy daily lives. However, while the urethane foam filling was low-resilience, it had the drawback of causing the head to sink into the pillow over time. For nearly 30 years after the sales boom died down, no true memory foam pillows were developed that addressed the flaws of the supposedly cervical-spine-friendly memory foam pillows. However, the massage industry has recently come to believe that stimulating the fascia, rather than the cervical vertebrae, is the primary cause of stiff shoulders. Massages that relieve stiff muscles without stimulating the fascia are considered necessary not only for health but also for beauty. A fascia-friendly pillow is a prerequisite for a memory foam pillow. "We aimed to create a truly innovative low-resilience pillow that provides a soft, gentle feel to the fascia around the shoulders and neck, preventing muscle stiffness and improving blood flow during sleep. This, in turn, helps maintain good health and provides a truly innovative low-resilience pillow for those suffering from stiff shoulders. As a result, we developed and produced two types of cut pipes: one with a highly mobile pillow filling made with a slip-containing resin, and one with a non-mobile pillow filling. The mixed filling instantly stops the mobile pillow from moving when the pillow is in use, creating an astonishingly light blocking phenomenon that is not noticeable to the pillow user. This resulted in a low-resilience pillow that feels extremely gentle on the fascia. In addition to the desired low-resilience feel, we were able to maintain the pillow's height while in use, and the use of cut pipes also allowed us to create a pillow with the excellent breathability required of a pillow filling material." By manufacturing and selling the pillow we have developed, we will be able to convince not only those who are unable to get a good night's sleep due to stiff shoulders, but also many people who wish to maintain their health by experiencing the effects of a true memory foam pillow in comparison with memory foam pillows that have been on the market until now, and we will be able to prove the effectiveness of our invention by having it sold widely among consumers who are looking for a memory foam pillow. [Brief explanation of the drawings]

[0017] [Figure 1] Resin cut pipe shape [Figure 2] Shape of two linked resin cut pipes [Figure 3] Shape of three linked resin cut pipes [Figure 4] A mixture of resin cut pipes and two chain cut pipes [Figure 5] A mixture of resin cut pipes and three chain cut pipes [Figure 6] This shows the shape of the cut pipes when five cut pipes are aligned on the formwork (7). [Figure 7] When using the pillow, the head weight (average adult) of 4 kg is supported, and is roughly calculated as 3,000 pieces of filling material below the head. The weight of each cut pipe is approximately 1.3 g, and a weight pressure of approximately 6.5 g (14) is applied to five cut pipes. The cross section of the cut pipe deformation is shown in the experimental results. However, this varies greatly depending on the resin used and the shape specification values, so it is necessary to select the appropriate material to suit the desired low-resilience feel. [Figure 8] This shows the condition of a pillow made with the developed filling. [Figure 9] This shows the state when only the inner material of the Zuru Cut Pipe is used. [Figure 10] Device for measuring the rebound force generated when using pillow (A) DETAILED DESCRIPTION OF THE INVENTION

[0018] To complete the pillow filling material we are developing, we will prepare the following manufacturing equipment. (1) The cut pipe shown in Figure 1 is produced using dedicated extrusion manufacturing equipment. (2) The chain-like cut pipes shown in Figures 2 and 3 are produced using dedicated extrusion manufacturing equipment. (3) The optimal mixing ratio of the chain-shaped slurping cut pipes and the slurping cut pipes is determined, and the filling material for the low-resilience pillow is completed by mixing the mixture using special mixing equipment while taking care to avoid uneven mixing. [Example]

[0019] (1) Add an appropriate amount of slip agent to the resin raw material specified for use and tumble to prepare for extrusion molding. (2) The resin raw material prepared in the cut pipe extrusion molding equipment is fed into the cut pipe extrusion molding equipment to produce cut pipes. (3) A multiple piece continuous slurred cut pipe extrusion machine is used to produce multiple piece continuous slurred cut pipes. (4) The cut pipes produced in (2) and the several chain-like cut pipes produced in (3) are fed into a mixing facility in a ratio of 3:1 (this ratio varies depending on the resin grade number used and is not constant), and the mixed pillow filling material is stuffed into the pillow to complete the pillow. (5) By implementing the above method, it has become possible to manage the production of filling materials for memory foam pillows by dividing the degree of memory foam into several stages. [Industrial Applicability]

[0020] Many people, both men and women, young and old, struggle to get a good night's sleep due to stiff shoulders. Furthermore, the newly developed memory foam pillow structure utilizes a 1-2cm thick layer of molded cotton made from soft, flexible, resilient synthetic cotton on the entire top surface of the pillow's interior, making it possible to create an ultra-low-resilience pillow with an even gentler feel. When it goes on sale and hits store shelves, the ultra-low-resilience pillow will garner consumer attention. Being able to freely switch between a soft, very gentle memory foam pillow and a firmer memory foam pillow depending on the degree of stiff shoulders allows consumers to experience even greater benefits from using the memory foam pillow. Some users will spread the word (provided the memory foam is genuine) through today's rapidly expanding information dissemination media, and we can expect a sales boom for genuine memory foam pillows. [Explanation of symbols]

[0021] (1) 1 piece of slicing pipe (2) Two chain-shaped slicing pipes (3) Three chain-shaped slicing pipes (4) When a mixture of cut pipes and several cut pipes is stuffed into a pillow, gaps form around the filling material. (5) A gap created when the cut pipe is crushed when you place your head on the pillow (6) Frame used in the experiment (7) Contact surface between pillow and head (8) This shows that the contents, which support approximately 4 kg in this entire section, are not moving. (9) The part of the pillow inner material that is not receiving the head weight pressure (10) Arrows indicating that the pillow user feels a small rebound force equivalent to several cut pipes (11) This shows the state in which a head pressure of approximately 4 kg is applied to the pillow, and a fluid repulsive force due to the 4 kg pressure is applied to the inner surface of the side bag. (12) (11) Arrows showing the magnitude of pressure in the state (13) Arrow indicating the amount of pressure exerted by the head on the pillow, approximately 4 kg. (14) Arrow indicating when a weight pressure of 6.5g, approximately 1.3g per cut pipe, is applied (15) Deformed part of cut pipe when weight pressure of 6.5g is applied to each cut pipe, which is approximately 1.3g. (A) Measuring pillow (B) 4 kg weight equivalent to the head pressure of an adult (C) Measuring scale (D) Place a pillow on the top tray, then place (B) on top and set the pointer to 0. (E) A pillar that holds (J) after placing (B) on top of (A). (F) A pillar that secures (B) after placing (B) on top of (A). (G) (J) moves down in the direction of the arrow, allowing the repulsive force to be measured. (H) The resilience of a molded urethane foam pillow was measured at 3.6 kg. (I) The rebound force of the developed pillow was measured at 0.9 kg. (J) Top pan of the scale (K) Remove the two fixed (E) in the direction of the arrow and measure the repulsive force.

Claims

1. Using a resin raw material containing a slip agent, cut pipes made of resin with high fluidity and chain-like cut pipes made of resin with almost no migration fluidity are produced, and in the process of mixing appropriate amounts of the cut pipes with high fluidity and the chain-like cut pipes with almost no migration fluidity, the ratio obtained at the point when the migration of the cut pipes with high fluidity roughly stops is used as the mixing ratio, and the filling material obtained by stirring and mixing the two types of cut pipes is packed into a pillow-side bag to complete the memory foam pillow.When the pillow is used, a slight blocking phenomenon occurs in the filling material, resulting in the dispersion of the filling's resilience, and as a result, a memory foam pillow filling that is very gentle on the fascia of the pillow user is produced and used.

2. In a memory foam pillow in which only cut-pipe resin filling material with high mobility is used and a resin containing a slip agent is stuffed into the pillow side bag, the head sinks significantly into the pillow when the pillow is used, and the pillow is unable to provide a low-resilience feel that is gentle on the fascia, and the height cannot be maintained stably. However, by mixing an appropriate proportion of cut-pipe pieces, each of which is a chain of several pieces with almost no mobility, into the filling material, when the head is placed on the pillow, the mixed filling material in the pillow causes a mobility that is imperceptible to the user in the pillow's filling material below the head. However, in actual use of the pillow, the mobility of the filling material stops almost instantly, and a slight blocking phenomenon occurs in the filling material that stabilizes the pillow's height, resulting in a dispersion of the filling material's resilience. This results in a pillow filling material that has the characteristic of providing a low-resilience feel that is very gentle on the fascia. This is the production and use of a two-type mixed resin cut-pipe memory foam pillow filling material with a slip agent.

3. To produce and use a pillow filling material in which a filling material used as a pillow filling material is stuffed into a pillow and when used by a person, a high degree of migration occurs in the filling material, and another filling material that acts to stop this migration is mixed in an appropriate amount, and the migration of the filling material is instantly stopped when the pillow is used, and a light blocking phenomenon occurs in the filling material, thereby dispersing the resilience of the filling material.

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