阅读说明：本技术 一种贴合人体臀部压力分布的竹废弃物弹性坐垫制备方法 (Preparation method of bamboo waste elastic cushion fitting human hip pressure distribution ) 是由 虞宇翔 郑继蓬 张恩畅 吴群 裘筱倩 蒋若玺 于 2021-09-06 设计创作，主要内容包括：本发明公开的是本发明一种贴合人体臀部压力分布的竹废弃物弹性坐垫制备方法,包括坐垫本体,所述坐垫本体内部包括若干个紧密排布的竹废弃物弹性单元体,根据人体臀部压力分布调整单元体排布以达到让人舒适的程度该制备方法包括如下步骤：竹废弃物弹性单元制备；竹废弃物弹性坐垫制备,结构简单,调整单元体排布、舒适度高、制备简单。(The invention discloses a preparation method of a bamboo waste elastic cushion fitting human hip pressure distribution, which comprises a cushion body, wherein the cushion body internally comprises a plurality of bamboo waste elastic unit bodies which are closely distributed, and the preparation method comprises the following steps of: preparing a bamboo waste elastic unit; the bamboo waste elastic cushion is prepared, the structure is simple, the arrangement of the adjusting unit bodies is high, the comfort level is high, and the preparation is simple.)

1. A preparation method of a bamboo waste elastic cushion fitting with human hip pressure distribution is characterized by comprising the following steps: 1) preparing a bamboo waste elastic unit; 2) preparing a bamboo waste elastic cushion;

wherein, the preparation of the bamboo waste elastic unit comprises the following steps:

(1-1) screening out tabasheer waste with the width of 2-5 mm and the development length of 150-200 mm from the bamboo waste, and drying at the temperature of 108 +/-2 ℃ for 24 hours to obtain dried tabasheer fiber;

(1-2) fully mixing the dried tabasheer fibers with the loosened low-melting-point fibers according to the mass ratio of 50-90% to obtain a bamboo waste-based mixture;

(1-3) weighing 18-22 g of bamboo waste based mixture, putting the mixture into a cubic metal mould with the side length of 60mm, heating at 150-180 ℃ under normal pressure for 15-20 min, and naturally cooling to obtain a bamboo waste elastic unit;

wherein, the preparation of the bamboo waste elastic cushion comprises the following steps:

(2-1) dividing the bamboo waste elastic unit bodies obtained in different mixing ratios into a plurality of grades according to the elastic modulus;

(2-2) dividing the human sitting posture pressure into a plurality of grades according to the human sitting posture pressure, wherein the pressure grade on the ischial tuberosities is the largest and corresponds to the bamboo waste elastic unit body with high elastic modulus, and the other positions except the ischial tuberosities are correspondingly arranged according to the opposite pressure grade and elastic modulus grade; when the pressure extends from the ischial tuberosity to the legs of the human body, the corresponding pressure value is gradually reduced;

(2-3) respectively covering a layer of 1-2 mm low-melting-point fiber on the upper surface and the lower surface of the well-arranged unit body combination, putting the unit body combination into a metal mold with the height of 60mm and the length and the width adjustable, heating the unit body combination at the temperature of 150-180 ℃ under normal pressure for 5-10 min, and naturally cooling the unit body combination to obtain the bamboo waste elastic cushion inner core;

and (2-4) sleeving the bamboo waste elastic cushion inner core into the bag-shaped cushion surface layer, and packaging to obtain the bamboo waste elastic cushion capable of fitting the pressure distribution of the buttocks of a human body.

2. The preparation method of the bamboo waste elastic cushion fitting the distribution of the human hip pressure as claimed in claim 1, wherein the method comprises the following steps: bamboo discarded object elastic cushion inside includes that a plurality of closely arranges bamboo discarded object elastic cell body, according to human position of sitting pressure distribution, the pressing force numerical value size divide into five grades: the high corresponds to 55-75 Pa, the high corresponds to 35-55 Pa, the medium corresponds to 25-35 Pa, the low corresponds to 15-25 Pa, and the low corresponds to 0-15 Pa.

3. The preparation method of the bamboo waste elastic cushion fitting the distribution of the hip pressure of the human body as claimed in claim 1 or 2, wherein the method comprises the following steps: dividing the bamboo waste elastic unit bodies obtained in different mixing ratios into five grades according to the elastic modulus: the height corresponds to 0.40-0.45 MPa, the height corresponds to 0.35-0.40 MPa, the middle corresponds to 0.30-0.35 MPa, the lower corresponds to 0.25-0.30 MPa, and the low corresponds to 0.20-0.25 MPa.

4. The preparation method of the bamboo waste elastic cushion fitting the distribution of the human hip pressure as claimed in claim 1, wherein the method comprises the following steps: the bamboo waste is the remainder generated in the felling, the material making and the processing and utilization of the original bamboo.

5. The preparation method of the bamboo waste elastic cushion fitting the distribution of the human hip pressure as claimed in claim 1, wherein the method comprises the following steps: the low-melting-point fiber is any one of PP fiber, PLA fiber, ES fiber and 4080 fiber.

6. The preparation method of the bamboo waste elastic cushion fitting the distribution of the human hip pressure as claimed in claim 1, wherein the method comprises the following steps: the metal mold is a metal mold capable of conducting heat rapidly.

7. The preparation method of the bamboo waste elastic cushion fitting the distribution of the human hip pressure as claimed in claim 1, wherein the method comprises the following steps: the cushion surface layer is any one of cotton cloth, plastic cloth and non-woven fiber cloth.

Technical Field

The invention relates to a preparation method of an elastic cushion, in particular to a preparation method of a bamboo waste elastic cushion fitting the pressure distribution of human buttocks, belonging to the field of cushion manufacturing.

Background

The bamboo fiber has the characteristics of natural antibiosis, bacteriostasis, mite removal, deodorization and ultraviolet resistance, the hygroscopicity, the moisture release property and the air permeability of the bamboo fiber are all positioned at the head of the textile fiber, and the bamboo fiber has good strength and toughness and can play the roles of cushioning and abrasion resistance, so the bamboo fiber is a material which is very suitable for manufacturing the cushion. Patent CN102793407A discloses a bamboo charcoal fiber cushion, wherein the cushion filler is formed by mixing bamboo charcoal fiber and low-melting-point cotton, and has the advantages of moisture absorption, air permeability, bacteriostasis and antibiosis. Patent CN109090898A discloses a bamboo fiber pad, which is formed by mixing and hot-pressing bamboo fibers and polyester fibers to form a fiber layer with an integrated structure, and the hot-pressing and needling process solves the problem that the layers are not interlaced and entangled to cause layering in the prior art, so that the elastic pad has the characteristics of good air permeability, instant water absorbability, strong wear resistance, good dyeability and the like.

However, although the bamboo fiber elastic cushion solves the problems of air permeability, bacteria resistance and water absorption of the cushion by using the bamboo fiber, the cushion adopts the integral filling and integral hot press molding process, and the elasticity is not partitioned, so that the cushion has poor sitting feeling, the deformation and the collapse of a region with large contact pressure are easily caused, and the blood flow of the buttocks can be blocked and even the diseases are caused after the cushion is sat for a long time.

Disclosure of Invention

In order to overcome the defects in the prior art and meet the requirement of people on the comfort level of the bamboo fiber cushion, the invention provides a preparation method of a bamboo waste elastic cushion which is fit with the pressure distribution of human buttocks. The cushion is internally composed of bamboo waste elastic unit bodies which are closely arranged, the bamboo waste elastic unit bodies are arranged according to the special pressure of the cushion, and the arrangement of the unit bodies is adjusted to achieve the comfortable degree of people.

In order to achieve the purpose, the invention is realized by the following technical scheme:

the invention relates to a preparation method of a bamboo waste elastic cushion fitting the pressure distribution of human buttocks, which comprises the following steps: 1) preparing a bamboo waste elastic unit; 2) preparing a bamboo waste elastic cushion;

wherein, the preparation of the bamboo waste elastic unit comprises the following steps:

(1-1) screening out the tabasheer waste with the width of 2-5 mm and the development length of 150-200 mm from the bamboo waste, and drying at the temperature of 108 +/-2 ℃ for 24 hours to obtain dried tabasheer fibers, wherein the dried tabasheer fibers in the cushion elastic unit body are in an S shape;

(1-2) fully mixing the dried tabasheer fibers with the loosened low-melting-point fibers according to the mass ratio of 50-90% to obtain a bamboo waste-based mixture;

(1-3) weighing 18-22 g of bamboo waste based mixture, putting the mixture into a cubic metal mould with the side length of 60mm, heating at 150-180 ℃ under normal pressure for 15-20 min, and naturally cooling to obtain a bamboo waste elastic unit;

wherein, the preparation of the bamboo waste elastic cushion comprises the following steps:

(2-1) dividing the bamboo waste elastic unit bodies obtained in different mixing ratios into a plurality of grades according to the elastic modulus;

(2-2) dividing the human sitting posture pressure into a plurality of grades according to the human sitting posture pressure, wherein the pressure grade on the ischial tuberosities is the largest and corresponds to the bamboo waste elastic unit body with high elastic modulus, and the other positions except the ischial tuberosities are correspondingly arranged according to the opposite pressure grade and elastic modulus grade; when the pressure extends from the ischial tuberosity to the legs of the human body, the corresponding pressure value is gradually reduced;

(2-3) respectively covering a layer of 1-2 mm low-melting-point fiber on the upper surface and the lower surface of the well-arranged unit body combination, putting the unit body combination into a metal mold with the height of 60mm and the length and the width adjustable, heating the unit body combination at the temperature of 150-180 ℃ under normal pressure for 5-10 min, and naturally cooling the unit body combination to obtain the bamboo waste elastic cushion inner core;

and (2-4) sleeving the bamboo waste elastic cushion inner core into the bag-shaped cushion surface layer, and packaging to obtain the bamboo waste elastic cushion capable of fitting the pressure distribution of the buttocks of a human body.

Preferably, the inside bamboo discarded object elastic cell body that closely arranges including a plurality of bamboo discarded object cushion, according to human position of sitting pressure distribution, the pressing force numerical value size divide into five grades: the high corresponds to 55-75 Pa, the high corresponds to 35-55 Pa, the medium corresponds to 25-35 Pa, the low corresponds to 15-25 Pa, and the low corresponds to 0-15 Pa.

Preferably, the bamboo waste elastic unit bodies obtained by different mixing ratios are divided into five grades according to the elastic modulus: the height corresponds to 0.40-0.45 MPa, the height corresponds to 0.35-0.40 MPa, the middle corresponds to 0.30-0.35 MPa, the lower corresponds to 0.25-0.30 MPa, and the low corresponds to 0.20-0.25 MPa.

Preferably, the ischial tuberosities of the human body correspond to the waste elastic unit bodies of 0.40-0.45 Mpa; the bamboo waste elastic unit bodies with the pressure of 0.20-0.25 MPa are correspondingly arranged at the positions close to the ischial tuberosities of the human body; bamboo waste elastic unit bodies of 0.30-0.35 MPa, 0.25-0.30 MPa and 0.35-0.40 MPa are correspondingly arranged at the upper end side close to the cushion body, bamboo waste elastic unit bodies of 0.30-0.35 MPa, 0.25-0.30 MPa and 0.35-0.40 MPa are correspondingly arranged at the left end side and the right end side close to the cushion body, and the bamboo waste elastic unit bodies at the left end and the right end are arranged and piled up; the bamboo waste elastic units with the pressure of 0.40-0.45 MPa, 0.35-0.40 MPa, 0.30-0.35 MPa and 0.25-0.30 MPa are respectively arranged at the lower end edge close to the cushion body.

Preferably, the bamboo waste is residues generated in felling, lumber making and processing of raw bamboos.

Preferably, the low-melting-point fiber is any one of PP fiber, PLA fiber, ES fiber, and 4080 fiber.

Preferably, the metal mold is a metal mold capable of rapidly conducting heat. Such as aluminum alloy molds, iron molds, copper molds.

Preferably, the cushion surface layer is any one of cotton cloth, plastic cloth and non-woven fiber cloth.

Has the advantages that:

1. the bamboo waste elastic cushion can make high-value utilization of the bamboo waste: 1) the utilization value-added rate of the bamboo waste is obviously improved: the traditional low-added-value incineration fuel is converted into an elastic cushion product with high added value; 2) the characteristics of bamboo waste are fully utilized: the bamboo waste fiber in the cushion elastic unit body is S-shaped, so that the toughness property of the bamboo fiber is fully exerted, and the effect similar to a spring is achieved;

2. the bamboo waste elastic cushion has the advantages of excellent performance and characteristics: 1) environmental protection property: due to the existence of the low-melting-point fiber, the bamboo waste composite material can be bonded without using glue, is not easy to delaminate and has no environmental pollution; 2) air permeability: the bamboo waste contains a large amount of hollow micropores, and the hollow micropores and the low-melting-point fibers are staggered, so that the bamboo waste has good air permeability; 3) comfort: as the unit bodies with different elasticity are arranged according to the special pressure of the invention, the cushion can be attached to the buttocks and provide supporting force in use, and has good comfort.

Drawings

Fig. 1 is an overall schematic view of a bamboo waste elastic cushion which is fit for the distribution of human hip pressure.

Fig. 2 is a top view of the bamboo waste elastic cushion which fits the distribution of human hip pressure.

Fig. 3 is a sectional view of a bamboo waste elastic cushion A-A according to the distribution of human hip pressure.

Fig. 4 is a schematic diagram of the distribution of the unit bodies of the bamboo waste elastic cushion which is fit with the distribution of the pressure of the buttocks of a human body.

Fig. 5 is a pressure distribution diagram of a human sitting posture.

Wherein the value unit in FIG. 5 is 10^2 Pa. In fig. 3: 1-single bamboo waste elastic unit body; 2-cushion surface layer; 3-lower and upper surface low-melting point fibers, and the reference numerals in FIG. 3 are omitted in the description of the embodiment.

Detailed Description

The present invention will be further described with reference to the accompanying drawings of FIGS. 1-5, but the present invention is not limited to the following examples.

Example 1:

a preparation method of the bamboo waste elastic cushion fitting the pressure distribution of the buttocks of a human body comprises the following steps:

(1) preparing a bamboo waste elastic unit:

(1-1) screening out the tabasheer waste with the width of 2mm and the development length of 150mm from the bamboo waste, and drying at the temperature of 108 +/-2 ℃ for 24 hours to obtain dried tabasheer fiber;

(1-2) fully dispersing and mixing the dried tabasheer fibers and the loosened low-melting-point fibers according to the mass ratio of 50%, 60%, 70%, 80% and 90% to obtain a bamboo waste-based mixture;

(1-3) weighing 18g of bamboo waste base mixture, putting the mixture into a cubic metal mould with the side length of 60mm, heating the mixture for 20min at 150 ℃ under normal pressure, naturally cooling the mixture, and performing post-treatment to obtain a bamboo waste elastic unit;

(2) the preparation method of the bamboo waste elastic cushion comprises the following steps:

(2-1) dividing the bamboo waste elastic unit bodies obtained in different mixing ratios into five grades according to the elastic modulus: the high corresponds to 0.40-0.45 MPa, the high corresponds to 0.35-0.40 MPa, the medium corresponds to 0.30-0.35 MPa, the low corresponds to 0.25-0.30 MPa, and the low corresponds to 0.20-0.25 MPa;

(2-2) according to the human sitting posture pressure distribution diagram, the magnitude of the pressing force value is divided into five grades: the high corresponds to 55-75 Pa, the high corresponds to 35-55 Pa, the medium corresponds to 25-35 Pa, the low corresponds to 15-25 Pa, and the low corresponds to 0-15 Pa;

(2-3) placing high-elasticity modulus unit bodies at the ischial tuberosities, and correspondingly arranging other positions according to the principle that the pressure grade is opposite to the elasticity modulus grade (the high pressure value corresponds to the low-elasticity modulus unit bodies);

(2-4) respectively covering a layer of 1mm low-melting-point fiber on the upper surface and the lower surface of the well-distributed unit body combination, putting the unit body combination into a metal die with the height of 60mm and the length and the width adjustable, heating the unit body combination at 150 ℃ under normal pressure for 10min, and naturally cooling the unit body combination to obtain the bamboo waste elastic cushion inner core;

and (2-5) sleeving the bamboo waste elastic cushion inner core into the bag-shaped cushion surface layer, and packaging to obtain the bamboo waste elastic cushion capable of fitting the pressure distribution of the buttocks of a human body.

Example 2:

a preparation method of the bamboo waste elastic cushion fitting the pressure distribution of the buttocks of a human body comprises the following steps:

(1) preparing a bamboo waste elastic unit:

(1-1) screening out the tabasheer waste with the width of 5mm and the development length of 200mm from the bamboo waste, and drying at the temperature of 108 +/-2 ℃ for 24 hours to obtain dried tabasheer fiber;

(1-2) fully dispersing and mixing the dried tabasheer fibers and the loosened low-melting-point fibers according to the mass ratio of 50%, 60%, 70%, 80% and 90% to obtain a bamboo waste-based mixture;

(1-3) weighing 22g of bamboo waste base mixture, putting the mixture into a cubic metal mould with the side length of 60mm, heating the mixture for 15min at 180 ℃ under normal pressure, naturally cooling the mixture, and performing post-treatment to obtain the bamboo waste elastic unit.

(2-1) dividing the bamboo waste elastic unit bodies obtained in different mixing ratios into five grades according to the elastic modulus: the high corresponds to 0.40-0.45 MPa, the high corresponds to 0.35-0.40 MPa, the medium corresponds to 0.30-0.35 MPa, the low corresponds to 0.25-0.30 MPa, and the low corresponds to 0.20-0.25 MPa;

(2-2) according to the human sitting posture pressure distribution diagram, the magnitude of the pressing force value is divided into five grades: the high corresponds to 55-75 Pa, the high corresponds to 35-55 Pa, the medium corresponds to 25-35 Pa, the low corresponds to 15-25 Pa, and the low corresponds to 0-15 Pa;

(2-3) placing high-elasticity modulus unit bodies at the ischial tuberosities, and correspondingly arranging other positions according to the principle that the pressure grade is opposite to the elasticity modulus grade (the high pressure value corresponds to the low-elasticity modulus unit bodies);

(2-4) respectively covering a layer of 2mm low-melting-point fiber on the upper surface and the lower surface of the well-distributed unit body combination, putting the unit body combination into a metal die with the height of 60mm and the length and the width adjustable, heating the unit body combination at the temperature of 180 ℃ under normal pressure for 5min, and naturally cooling the unit body combination to obtain the bamboo waste elastic cushion inner core;

and (2-5) sleeving the bamboo waste elastic cushion inner core into the bag-shaped cushion surface layer, and packaging to obtain the bamboo waste elastic cushion capable of fitting the pressure distribution of the buttocks of a human body.

Example 3:

a preparation method of the bamboo waste elastic cushion fitting the pressure distribution of the buttocks of a human body comprises the following steps:

(1) preparing a bamboo waste elastic unit:

(1-1) screening out tabasheer waste with the width of 4mm and the development length of 180mm from the bamboo waste, and drying at the temperature of 108 +/-2 ℃ for 24 hours to obtain dried tabasheer fiber;

(1-2) fully dispersing and mixing the dried tabasheer fibers and the loosened low-melting-point fibers according to the mass ratio of 50%, 60%, 70%, 80% and 90% to obtain a bamboo waste-based mixture;

(1-3) weighing 20g of the bamboo waste base mixture, putting the mixture into a cubic metal mould with the side length of 60mm, heating the mixture for 18min at 160 ℃ under normal pressure, naturally cooling the mixture, and performing post-treatment to obtain the bamboo waste elastic unit.

(2-1) dividing the bamboo waste elastic unit bodies obtained in different mixing ratios into five grades according to the elastic modulus: the high corresponds to 0.40-0.45 MPa, the high corresponds to 0.35-0.40 MPa, the medium corresponds to 0.30-0.35 MPa, the low corresponds to 0.25-0.30 MPa, and the low corresponds to 0.20-0.25 MPa;

(2-2) according to the human sitting posture pressure distribution diagram, the magnitude of the pressing force value is divided into five grades: the high corresponds to 55-75 Pa, the high corresponds to 35-55 Pa, the medium corresponds to 25-35 Pa, the low corresponds to 15-25 Pa, and the low corresponds to 0-15 Pa;

(2-3) placing high-elasticity modulus unit bodies at the ischial tuberosities, and correspondingly arranging other positions according to the principle that the pressure grade is opposite to the elasticity modulus grade (the high pressure value corresponds to the low-elasticity modulus unit bodies);

(2-4) respectively covering a layer of 1.5mm low-melting-point fiber on the upper surface and the lower surface of the well-distributed unit body combination, putting the unit body combination into a metal die with the height of 60mm and the length and the width adjustable, heating the unit body combination at 160 ℃ under normal pressure for 8min, and naturally cooling the unit body combination to obtain the bamboo waste elastic cushion inner core;

and (2-5) sleeving the bamboo waste elastic cushion inner core into the bag-shaped cushion surface layer, and packaging to obtain the bamboo waste elastic cushion capable of fitting the pressure distribution of the buttocks of a human body.

Other embodiments are also encompassed by this application, such as embodiments that take all values at the left end of each range, or that take all values at the right end of each range, or that take all values at the middle of each range.

In a preferred embodiment, the bamboo waste is a residue generated in felling, lumber making and processing of raw bamboos.

In a preferred embodiment, the low-melting-point fiber is any one of PP fiber, PLA fiber, ES fiber, and 4080 fiber.

In a preferred embodiment, the metal mold is a metal mold capable of rapidly conducting heat. Such as aluminum alloy molds, iron molds, copper molds.

In a preferred embodiment, the cushion surface layer is any one of cotton cloth, plastic cloth and non-woven fiber cloth.

Finally, it should be noted that the present invention is not limited to the above embodiments, and many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.