JPS58199041A - A mat for absorbing waste oil - Google Patents

Abstract

PURPOSE:To improve oil absorbing performance by heating a mat-like fibrous compsn. contg. natural fiber, and a fibrous or powdery synthetic resin and forming the same to a mat shape. CONSTITUTION:60-97wt% Natural fibers such as pulp, regenerated pulp, cotton linter or the like and 40-3wt% fibrous and powdery synthetic resin such as PE, polystyrene or the like are contained to obtain a mat-like fibrous compsn. The mat-like fibrous compsn. is heated to stick the natural fibers to each other by melting of the synthetic resin, whereby a mat-like molding having 0.03-0.15g/cc apparent density and >=3mm. thickness is formed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a Fi waste oil absorbing mat. More specifically, it relates to a waste oil absorbing mat with excellent oil absorbing performance that is used to dispose of household, factory, etc. waste.

The amount of waste oil disposed of in households, restaurants, inns, hotels, and wood factories is steadily increasing to 0%, and as the use of cooking oil in households increases, the amount of used oil, i.e., old oil, is steadily increasing to 0%. The number of edible oil wastes is also increasing. (In the past, these waste oils from households were often thrown away directly from the kitchen sink, or there were problems such as tying up sewage pipes or causing sewage pollution. Part 9) In order to do this, methods such as absorbing it in newspapers or cloth and disposing of it, or burying it in gardens or fields, etc., have been used, but both methods are time-consuming and cumbersome. Other convenient waste oil disposal methods were desired.

Previously, as a method for disposing of Ueho oil, various types of waste oil processing containers (bags) were devised that were lined with mat-like oil-absorbing materials made of fibers, paper, and non-woven fabric, and waste oil was poured into the containers. A method has already been proposed in which waste oil is absorbed and disposed of by an internal mat-like oil-absorbing member.
6-6za 70/issue, Jitsukai Sho 36-72za 07, Jitsukai Sho j6-/san≠00/issue, Jitsukasho 3t-Hari 002, Jitsukasho! 6-7≠Za00/, Utility Model Application Publication No. 37-301, and Utility Model Application No. 7-//10.2).

However, the mat-like oil-absorbing members installed in these waste oil processing containers are simply made of fiber, paper, or non-woven fabric, and their oil-absorbing performance is not necessarily sufficient.

The inventor, Hiro, has conducted extensive research to develop a waste oil absorption mat with excellent oil absorption performance that is suitable for use when stored in waste oil processing containers, etc. As a result, the inventor has developed a material that has natural fibers and heat-fusibility. A mat-like fiber composition containing a fibrous and/or Vi primary synthetic resin and a specific proportion of foam is heated, and the natural fibers are fused together by bath melting of the synthetic resin. M
The inventors have discovered that a crushed waste oil absorbing mat with good oil absorption performance can be obtained by forming a mat-like molded body having a JL thickness of at least a specific thickness and hanging density, and developed the waste oil absorbing mat of the present invention. It's funny because it's so funny.

That is, the waste oil absorbing mat of the present invention is made of natural fiber 1fi.
A mat-like fiber composition rich in 0 to 97 m5+6 and a fibrous and/or powdery synthetic resin having thermal fusibility is heated. The gloss density change between the fibers is 0.03~0. / j
)/cc and rhinoceros j mm or more. This mat is formed into a V-shaped molded body.

Various natural fibers can be used as the natural fibers in the Vt of the present invention, such as pulp, recycled pulp, cotton linters, etc., but particularly preferred are cardboard, Ilr paper, and 6 paper recycled valves recycled from used magazine paper. Out.

In addition, the synthetic resin used in the present invention has an adhesive structure that can be heated and melted to fuse the natural fibers together without impairing their oil-absorbing properties, that is, while maintaining a suitable air gap. The synthetic resin must be in the form of fibers and/or powder, preferably in the form of fibers. Examples of synthetic resins of type S include polyolefin resins such as polyethylene and polypropylene, vinyl chloride resins, polystyrene, polyester resins such as polyethylene terephthalate, and various polyamide resins. Particularly preferred synthetic resins are fibrous polyolefin resins, such as synthetic pulps such as polyethylene and polypropylene.

The mat-like fiber composition in the present invention contains 60% natural fiber.
~97% by weight, preferably 70~9%, fibrous and/or powdery synthetic resin ≠θ~3 times 1 m9b, preferably 3θ~2%, tr+ 96,
This mat-like fiber composition may be enriched with small amounts of other components depending on the 6C requirements, in particular borax, halogen acid, 1! Matte phosphorus compound flame retardant II&##i
It is preferable to contain 10 to 30 Shinden-9 based on the composition because the waste oil absorbing mat can be made flammable.

If the proportion of natural fibers is too small (that is, if the proportion of synthetic resin is too high), the resulting molded mat will have a high apparent density and its oil absorption performance will decrease, and natural S! If the proportion of miscellaneous materials is too high (that is, if the proportion of synthetic resin is too low), the resulting molded mat will not be able to sufficiently fuse the natural fibers together, resulting in poor shape retention.
It becomes difficult to handle due to the scattering of Ml and fiber powder, and furthermore, the oil absorption performance itself deteriorates.

A method for forming a mat-like fiber composition is to mix natural fibers and fibrous and/or powdered synthetic resin in a predetermined ratio, and if necessary, add a repellent, etc., and place the mixture on a stand in the air. It is preferable to defibrate the mat to make it into a continuous flat sheet. 100
θ / m”, - the thickness of the mat body when put on and taken off is J mm or more,
Preferably it is Fil~3Qmm.

The mat-like composition thus formed is then heated to melt the synthetic resin and fuse the natural fibers together, and various methods can be used for heating. A particularly preferred heating method is a method using a hot air oven. For example, as described above, a mat-like fiber composition that is continuously formed into a flat mat in a dry process is continuously passed through a hot air oven, and the fibrous and/or powdered synthetic resin is The fibers are melted and bonded by synthetic resin using hot air, and the appropriate amount of voids necessary for oil absorption are maintained between the fibers, and the mat shape is well maintained, and there is no risk of IH, m, or powder scattering. It becomes a matte body. The degree of hot air in a hot blast stove varies depending on the ellipse tC of the synthetic resin used, or is usually 7.20.
~〇〇U, preferably about 9 for polyethylene, about 13OC for one unit of C1 ethylene vinyl acetate, and about tU for polypropylene. . Furthermore, when heating and fusing the matte fiber composition, it is not necessary to press the matte body, but in some cases, it may be lightly pressed with a molded roll or the like. However, as the pressure increases, the density of the mat becomes even higher, resulting in a decrease in oil absorption performance.

In addition, an oil-permeable paper-like material, a thin paper with a basis weight of 10-201/-, a non-woven fabric (for example, a spunbond non-woven fabric, (Dry-processed rayon non-woven fabric, dry-processed pulp non-woven fabric), press lightly with a molded roll at the same time or after heating.
When I apply oil to one or both sides of the mat-like molded product, a paper-like material is applied.
It can be said to be a waste oil absorbing mat that has been laminated with oil-permeable paper, and the mat that has been laminated with such oil-permeable paper-like material has a good external detergency and its commercial value is improved.

The heating-N matte molded body of the present invention has an apparent calmness of θ, θ3~0./jif/cc, preferably 0.OJ~0./)7/cc. The thickness should be 3 mm or more, preferably 3 to 30 mff1.
so that it becomes

The waste oil absorbing mat of the present invention has (1) extremely excellent oil absorption performance, (11) good retention of the mat-like body, no scattering of fiber powder, and easy handling and processing. It has the advantage of being able to be supplied at a low price since (+l) cheaper used paper recycling valves are available. This is because the natural fibers are fused to each other while maintaining a suitable air gap M, and the voids between the fibers do not shrink even after absorption of waste oil, and a stable shape is maintained. On the other hand, if the natural fibers of the valve fibers or their crushed products are used as oil-absorbing fibers, the oil-absorbing VC fibers will easily move to each other and the obstruction will be narrowed, resulting in poor oil-absorbing performance. it is conceivable that.

The waste oil absorbing mat of the present invention is stored in an appropriate container.
By simply storing and using the container and injecting waste oil into the container, VCa can be easily stored and processed in the iWl oil container.

Next, Examples and Comparative Examples will be described in more detail.

Actual M1 example/A device similar to the ceremony nonwoven fabric manufacturing device is not used/2.
Thin paper from the roll of thin #1 paper of
The waste corrugated paper and polyethylene rice synthetic pulp (manufactured by Mitsui Zeravac Co., Ltd., 5WP-W≠00) are continuously fed onto an endless wire mesh, and then separately prepared using a defibrator to defibrate the waste paperboard. Regenerated pulp gt turtle w9btrc is mixed in the air so that the synthetic pulp becomes /2 volumes of noodles.
oy/m''#4-plate-shaped pine) can be continuously formed into a sheet C) and then continuously fed onto the self-thin paper.

The thus formed flat mixing mat with tissue paper on the underside was then passed continuously through a hot air oven to melt the synthetic pulp with the hot air. The hot air temperature in the hot air oven was 69, and the residence time of the mat in the hot air oven was 2 seconds.

Thin paper similar to the above is continuously layered on top of the mixed mat that has been passed through a hot air oven, then passed through a lattice patterned roll, lightly pressurized, and further cooled in air to obtain a light weight. 0
．． OJf/cc, and thickness 7.2mm < grammage 1,00
9/WL) was obtained.

The waste oil absorbing mat, pulverized pulp, rayon nonwoven fabric, and newspaper obtained in Example 1 were used as samples, and a certain amount of each sample (1ik(j')) was immersed in commercially available salad oil (≠OU) for 70 minutes and then taken out. After leaving it on the IO mesh gold net for 7 minutes, the oil absorption was measured (this measurement method is in accordance with the "Method for measuring water absorption of absorbent cotton" in the Pharmacopoeia H).
).

The waste oil absorbing mat of the present invention has a dredged oil absorbing rudder compared with crushed pulp, rayon nonwoven fabric, and lh cabinet paper VC.

No./11 a) Hatano: Made by Chicobee, uses acrylic emulsion binder.

Example λ Instead of the polyethylene synthetic pulp used in Example/K,
Powdered polyethylene (product name: Frozen, manufactured by Tetsuo Kagaku Co., Ltd.) was used, and #1 was prepared according to the method of Example 1. A waste oil absorbing mat with an I density of o, an ori of 3 t/cc, and a rhinoceros/Q mm (basis weight: j Of/wa") was manufactured.

Thirty nine samples each of the obtained waste oil absorbing mat, one commercially available paper, one commercially available O-Rheher, and one commercially available polypropylene fiber cloth were used as samples. It was soaked for a minute to absorb the oil. Next, each oil-absorbed sample was taken out and left for 7 minutes on a 10-mesh metal wire to remove excess oil, and the bundle amount was measured to calculate the oil absorption amount of each sample. The results are shown in Table 2. The mats obtained in Example 1 had significantly superior oil absorption performance compared to other samples.

Table 2 Note) Hata/... Tokai Paper Co., Ltd. Manufactured by Toshi Co., Ltd. Part name: Washetup 3 In Example/, bleached pulp kumquat is used instead of the used paper in the paper, and its size is e. According to the method of implementation ψ/, the apparent density is 0.03 f/ce, the thickness is 2 hi mm (1 tsubo 1 tk
g 0 /t/m') was produced.

Regarding the obtained mats, oil absorption was measured using the h method similar to the method in Example 1. The results are shown in Table 3.

Table 3 Patent applicant: Honshu Paper Co., Ltd. #1/name

Claims (1)

[Scope of Claims] A. A mat-like fiber composition containing 60-97% by weight of natural fibers and 60-97% by weight of a fibrous and/or powdered synthetic resin having heat-fusible properties is heated. By melting the skeleton synthetic resin, the natural fibers are fused together to give an apparent density of 0.03 to 0.
/jf/ct: and waste oil absorption w7' formed into a mat-like molded body with a thickness of 3 mm or more. 2. The waste oil absorbing mat according to claim 7, wherein the natural fibers are recycled pulp from used paper. 3. The waste and oil absorbing mat according to claim 1 or 2, wherein the synthetic resin is a synthetic valve made of polyolefin resin. Hiroshi Claims 1, 2, and 2, comprising a waste oil absorbing mat with an oil-permeable paper-like material pasted on one or both sides thereof.
Or the waste oil absorption mat described in Section 3.