CN103612345A - Preparation method of EPE (expandable polyethylene) foam mattress - Google Patents
Preparation method of EPE (expandable polyethylene) foam mattress Download PDFInfo
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- CN103612345A CN103612345A CN201310575445.8A CN201310575445A CN103612345A CN 103612345 A CN103612345 A CN 103612345A CN 201310575445 A CN201310575445 A CN 201310575445A CN 103612345 A CN103612345 A CN 103612345A
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Abstract
The invention discloses a preparation method of an EPE (expandable polyethylene) foam mattress. The preparation method comprises the following steps: (1) impregnation pre-pressing of raw materials: performing impregnation pre-pressing on EPE foam particles, then maintaining pressure, and finally reducing to atmospheric pressure, thereby obtaining the raw materials of the EPE foam particles; (2) injection molding: performing injection molding on the raw materials of the EPE foam particles obtained in the step (1) to obtain an initial EPE foam mattress; (3) post-treatment: placing the initial EPE foam mattress into a closed room for baking to obtain the EPE foam mattress. The invention develops a new preparation method of the EPE foam mattress, the impregnation pre-pressing treatment is performed on the EPE foam particles before injection molding, and the post-treatment is performed on the initial EPE foam mattress obtained after injection molding; experiments prove that the qualification rate of the EPE foam mattress prepared by the preparation method disclosed by the invention is greatly improved and can be up to above 98%, and unexpected effects can be further obtained.
Description
Technical field
The present invention relates to a kind of preparation method of EPE foam pad mattress.
Background technology
Foam pad mattress is also sponge matress, the mattress that main exactly material is made with foam.Foam pad mattress can meet the curve of health, when providing support, does not lose softness and elasticity, can cushion the action of health simultaneously, even if a people frequently stands up, also can not have influence on companion, there is no noise when standing up.Therefore, foam pad mattress has obtained consumers in general's favor and has liked.
Existing foam pad mattress is mainly divided into three kinds: polyurethane foam mattress, high-elastic foam pad mattress and memory foam mattress.Wherein, what polyurethane foam mattress referred to is exactly memory sponge mattress common on market, also be space memory sponge mattress, slow rebound mattress, it is used when Shi Gei U.S. space astronaut is maked a return voyage buffering the earliest, the most obvious feature is exactly that resilience is slow, can change shape along with the variation of pressure, therefore seem that just looking like is the pressure of remembering this position, the shape that keeps this to have, well laminating health curve, reduces the pressure of mattress to health.Yet polyurethane foam is chemical products, in foaming process, have very heavy taste, cannot meet the requirement of people to environmental protection.
For the problems referred to above, there is EPE foam pad mattress, EPE(Expandable Polyethylene), it is expandability polyethylene, claim again expanded polyethylene foam, it is non-crosslinked hole-closing structure, is to take the high foamed polyethylene goods that low density polyethylene (LDPE) (LDPE) generates as primary raw material extruding.EPE foamed product density is little, pliability good, response rate is high, has independently bubble structure, and absorptivity is low, acidproof, alkaline-resisting, salt, the corrosion of wet goods organic solvent, and ageing-resistant performance is good; And do not pollute the environment, can repetitiousness recycle, so EPE foamed material is a kind of novel, Chaoyang unabated material forever.Along with propelling and the product of time are continually developed application, EPE pearl wool foaming material will be applied even more extensively aspect packing and filling materials.
In prior art, EPE foam pad mattress is mainly prepared by injection moulding machine.Yet, actual production process discovery, there are the following problems for the EPE foam pad mattress of directly preparing by the method for injection mo(u)lding: buckling performance and the load performance of (1) product are poor; (2) product percent of pass is lower, conventionally in 80% left and right.
Summary of the invention
Goal of the invention of the present invention is to provide a kind of preparation method of EPE foam pad mattress.
To achieve the above object of the invention, the technical solution used in the present invention is: a kind of preparation method of EPE foam pad mattress, comprises the steps:
(1) raw material impregnation precompressed: EPE foam particle is carried out to impregnation precompressed, then carry out pressurize, be finally depressurized to atmospheric pressure; Obtain EPE foam particle raw material;
The pressure of described impregnation precompressed is 3.0 ~ 4.0 MPa, and the time is 16 ~ 26 hours;
The pressure of described pressurize is 2.5 ~ 3.0 MPa, and the time is 3 ~ 3.5 hours;
The time of described step-down is 1.0 ~ 1.5 hours;
(2) injection mo(u)lding: the EPE foam particle raw material that adopts above-mentioned steps (1) to obtain carries out injection mo(u)lding, obtains initial EPE foam pad mattress;
(3) post processing: above-mentioned initial EPE foam pad mattress is put into confined chamber and toast, baking temperature is 80 ~ 85 ℃, 8 ~ 16 hours time; Then confined chamber was down to room temperature in 6 ~ 16 hours, standing 12 ~ 24 hours, can obtains EPE foam pad mattress.
Preferably, in described step (1), the pressure of impregnation precompressed is 3.5 MPa.
Because technique scheme is used, the present invention compared with prior art has following advantages:
1. the present invention has developed a kind of preparation method of new EPE foam pad mattress, before injection mo(u)lding, EPE foam particle is carried out to impregnation precompressed processing, the initial EPE foam pad mattress obtaining after injection mo(u)lding carries out post processing, experimental results show that: the qualification rate of the EPE foam pad mattress making according to method of the present invention improves greatly, reach more than 98%, obtained beyond thought effect.
2. the buckling performance of the EPE foam pad mattress that the present invention makes and load performance all improve greatly, have obtained significant effect.
3. preparation method of the present invention is simple, and cost is lower, is suitable for applying.
The specific embodiment
Below in conjunction with embodiment, the invention will be further described:
Embodiment mono-:
A preparation method for EPE foam pad mattress, comprises the steps:
(1) raw material impregnation precompressed: EPE foam particle is carried out to impregnation precompressed, then carry out pressurize, be finally depressurized to atmospheric pressure; Obtain EPE foam particle raw material;
The pressure of described impregnation precompressed is 3.5 MPa, and the time is 16 ~ 26 hours;
The pressure of described pressurize is 2.5 ~ 3.0 MPa, and the time is 3 hours;
The time of described step-down is 1.0 hours;
(2) injection mo(u)lding: the EPE foam particle raw material that adopts above-mentioned steps (1) to obtain carries out injection mo(u)lding, obtains initial EPE foam pad mattress;
(3) post processing: above-mentioned initial EPE foam pad mattress is put into confined chamber and toast, baking temperature is 80 ℃, 8 ~ 16 hours time; Then confined chamber was down to room temperature in 6 ~ 16 hours, standing 12 ~ 24 hours, can obtains EPE foam pad mattress.
The EPE foam pad mattress feature specific as follows being made by said method:
Hardness can reach salient point, four sides, front, and the average hardness at the back side should be higher than more than 40HC;
Its thrust can reach in the middle of massage ball and push away, till single ball massage ball fracture, more than reaching 18KG;
Completely, smooth surface, does not have ruggedly and uneven in foaming, and finger can rapid resilience after pressing and unclamping, reinstatement;
Long limit doubling, is close to for four jiaos between two, and mattress bending part is without cracking phenomena, and resilient within a certain period of time after unclamping.
Under the pressure of 18.5kg:
After pressing 8h, product height is not less than 50% of former height;
After pressing 8h resilience 16h, product height is not less than 80% of former height;
After pressing 8h resilience 24h, product height is not less than 90% of former height;
After pressing 8h resilience 72h, product height is not less than 95% of former height.
Comparative example one:
A preparation method for EPE foam pad mattress, comprises the steps:
Adopt the EPE foam particle identical with embodiment mono-, directly carry out injection mo(u)lding, obtain EPE foam pad mattress.
The outward appearance of the EPE foam pad mattress that it obtains is matt, surface irregularity, and bounce-back weak effect, product atrophy, product percent of pass is only 80% left and right.
Claims (2)
1. a preparation method for EPE foam pad mattress, is characterized in that, comprises the steps:
(1) raw material impregnation precompressed: EPE foam particle is carried out to impregnation precompressed, then carry out pressurize, be finally depressurized to atmospheric pressure; Obtain EPE foam particle raw material;
The pressure of described impregnation precompressed is 3.0 ~ 4.0 MPa, and the time is 16 ~ 26 hours;
The pressure of described pressurize is 2.5 ~ 3.0 MPa, and the time is 3 ~ 3.5 hours;
The time of described step-down is 1.0 ~ 1.5 hours;
(2) injection mo(u)lding: the EPE foam particle raw material that adopts above-mentioned steps (1) to obtain carries out injection mo(u)lding, obtains initial EPE foam pad mattress;
(3) post processing: above-mentioned initial EPE foam pad mattress is put into confined chamber and toast, baking temperature is 80 ~ 85 ℃, 8 ~ 16 hours time; Then confined chamber was down to room temperature in 6 ~ 16 hours, standing 12 ~ 24 hours, can obtains EPE foam pad mattress.
2. the preparation method of EPE foam pad mattress according to claim 1, is characterized in that: in described step (1), the pressure of impregnation precompressed is 3.5 MPa.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310575445.8A CN103612345B (en) | 2013-11-18 | 2013-11-18 | A kind of preparation method of EPE foam pad mattress |
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| CN201310575445.8A CN103612345B (en) | 2013-11-18 | 2013-11-18 | A kind of preparation method of EPE foam pad mattress |
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| CN103612345A true CN103612345A (en) | 2014-03-05 |
| CN103612345B CN103612345B (en) | 2016-01-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112457554A (en) * | 2020-11-18 | 2021-03-09 | 湖南省爱意缘家居有限公司 | Environment-friendly composite mattress containing bamboo fibers and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1160411A (en) * | 1994-09-30 | 1997-09-24 | 丹尼斯·A·克瑙斯 | Moldable thermoplastic polymer foam beads |
| CN1247124A (en) * | 1998-09-08 | 2000-03-15 | 上海福特电器设备厂 | Technology for making soft polyurethane foam cushion with seamless wrapper |
| JP2001353750A (en) * | 2000-06-14 | 2001-12-25 | Canon Inc | Foam molding method and apparatus |
| US20040099995A1 (en) * | 2002-11-25 | 2004-05-27 | Honda Giken Kogyo Kabushiki Kaisha | Injection mold machine with reduced mold change downtime |
| CN1583391A (en) * | 2004-05-26 | 2005-02-23 | 丹阳市华东工程塑料有限公司 | Preparing method for embedded expanding piece of car |
| CN101028159A (en) * | 2007-04-20 | 2007-09-05 | 桑曼德控股有限公司 | Aerated air pad |
| CN101453925A (en) * | 2006-04-25 | 2009-06-10 | 意大利凝胶技术有限公司 | Process for preparing an apparatus comprising a gel layer |
-
2013
- 2013-11-18 CN CN201310575445.8A patent/CN103612345B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1160411A (en) * | 1994-09-30 | 1997-09-24 | 丹尼斯·A·克瑙斯 | Moldable thermoplastic polymer foam beads |
| CN1247124A (en) * | 1998-09-08 | 2000-03-15 | 上海福特电器设备厂 | Technology for making soft polyurethane foam cushion with seamless wrapper |
| JP2001353750A (en) * | 2000-06-14 | 2001-12-25 | Canon Inc | Foam molding method and apparatus |
| US20040099995A1 (en) * | 2002-11-25 | 2004-05-27 | Honda Giken Kogyo Kabushiki Kaisha | Injection mold machine with reduced mold change downtime |
| CN1583391A (en) * | 2004-05-26 | 2005-02-23 | 丹阳市华东工程塑料有限公司 | Preparing method for embedded expanding piece of car |
| CN101453925A (en) * | 2006-04-25 | 2009-06-10 | 意大利凝胶技术有限公司 | Process for preparing an apparatus comprising a gel layer |
| CN101028159A (en) * | 2007-04-20 | 2007-09-05 | 桑曼德控股有限公司 | Aerated air pad |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112457554A (en) * | 2020-11-18 | 2021-03-09 | 湖南省爱意缘家居有限公司 | Environment-friendly composite mattress containing bamboo fibers and preparation method thereof |
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| CN103612345B (en) | 2016-01-06 |
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Address after: The town for 215164 Suzhou Road, Wuzhong District No. 118 Jiangsu province Xu Patentee after: Fushun Suzhou new packaging materials Limited by Share Ltd Address before: The town for 215164 Suzhou Road, Wuzhong District No. 118 Jiangsu province Xu Patentee before: SUZHOU FUSHUN PACKING PRODUCTS CO., LTD. |