TWM572144U - Environmental friendly slippers - Google Patents

Abstract

An eco-friendly slipper includes a sole and a shoe ear disposed on the sole, wherein the material of the sole is formed by a composition for forming a sole material, and the composition for forming the sole material comprises cork, a decomposable adhesive and a coffee material for adhering the softwood to the coffee material. In addition to the environmental protection requirements that can be decomposed and harmless to the human body, the sole of the environmentally-friendly slippers has the advantages of low production cost and low odor after wearing.

Description

Environmentally friendly slippers

The present invention relates to a kind of slippers, especially to an environmentally friendly slippers.

There are many kinds of materials that can be used as sole materials, such as rubber (natural rubber or artificial rubber), polyethylene vinyl acetate (EVA), polyethylene (PE), polypropylene (PP), polyurethane (PU), thermoplastic polyurethane elastomer. Rubber (TPU) or polyvinyl chloride (PVC). Among them, if the rubber, EVA, PE, PP or PVC as the sole material of the slippers, the environmental burden of the materials is difficult to decompose, does not meet the environmental requirements; while PU and TPU are both hydrolyzable materials, but PU Or when the TPU is used as a slip material for a sole material, if it is not worn for a long time, the sole tends to deteriorate disintegration or powdering and cannot be used any more. In addition, when the sole is made of the aforementioned materials, a plasticizer is usually added during the manufacturing process, and if it is worn for a long time, it may cause harm to the human body.

CN 103072177B discloses a sole formed of a composition for forming a sole material comprising cork waste, plant fibers (hemp or palm silk) and liquid polyurethane (adhesive). Although the sole material formed by the composition can solve the problems caused by the use of rubber, EVA, PE, PP, PVC, PU or TPU as the sole material in the front stage (if it does not meet environmental protection requirements, the sole is easily disintegrated and powdered or produced). In the process, a plasticizer or the like needs to be added; however, since plant fibers such as hemp or palm silk are relatively difficult to obtain, when the sole material and the sole of the slippers are further produced using the composition containing the plant fiber, the manufacturing cost of the slippers is increased, and The sole material formed by the composition also does not solve the problem that the slipper easily causes odor after wearing. Therefore, the sole disclosed in CN 103072177B needs further improvement.

In view of the shortcomings of the sole disclosed in the aforementioned CN 103072177B, the applicant of the present invention firstly considers a coffee material (such as coffee powder or coffee grounds) which is easily obtained in daily life or which can be obtained free of charge, instead of the easily obtained hemp or palm silk. The plant fiber is used to reduce the manufacturing cost of the sole (ie, the slippers), and at the same time, by the characteristic that the coffee material can be deodorized, the problem that the slippers easily generate odor after wearing is solved.

Therefore, the object of the present invention is to provide an environmentally-friendly slipper which has the advantages of low production cost and low odor after wearing, in addition to environmental protection requirements such as being decomposable and harmless to the human body.

Therefore, the novel eco-friendly slippers include a sole and a shoe ear disposed on the sole.

The material of the sole is formed by a composition for forming a sole material, and the composition for forming the sole material comprises cork, a decomposable adhesive, and a coffee material for adhering the cork with The coffee material.

The utility model has the advantages that: the coffee material in the composition is easy to obtain and has the function of deodorizing, so that in addition to reducing the manufacturing cost of the sole (ie, the novel environmentally friendly slippers), the environmental protection slippers of the novel can also be worn. After that, it is less prone to odor; in addition, since the cork and the adhesive are all decomposable components, the sole of the environmentally-friendly slippers can meet the environmental requirements of being decomposable and harmless to the human body.

The following is a detailed description of this new content:

The eco-friendly slipper of the present invention comprises a sole and a shoe ear disposed on the sole, wherein the material of the sole is formed by a composition for forming a sole material.

Preferably, the material of the shoe ear is a decomposable material. The decomposable material can be any material that can be decomposed in the prior art. The aforementioned "decomposable" is not limited to being naturally decomposed or artificially decomposed. The decomposable material is for example but not limited to pure cotton.

The composition for forming the sole material and the material of the sole are further explained below:

< Composition for forming a sole material >

The composition for forming the sole material comprises cork, a decomposable adhesive, and a coffee material.

The cork may be cork of any form or source and the particle size thereof is also not limited. For example, the cork may be the softwood (ie, scrap) remaining in the process of producing the cork, and the unused cork is broken. The cork or the cork obtained after the broken cork is broken. Preferably, the source of the cork is the softwood remaining during the production of the cork.

Preferably, the softwood has a weight ranging from 45 to 55 wt% based on 100 wt% of the total weight of the composition. More preferably, the cork has a weight ranging from 47 to 53 wt%.

The decomposable adhesive can be any existing reagent that can be decomposed and can be used to adhere cork and coffee. The aforementioned "decomposable" is not limited to being naturally decomposed or artificially decomposed.

Preferably, the decomposable adhesive is selected from the group consisting of an adhesive, a UV adhesive or a combination of the foregoing.

The adhesive contains a polymer selected from the group consisting of polyurethane (PU), urea-formaldehyde resin, polyvinyl acetate, polyvinyl alcohol, polylactic acid (polylactic acid). Acid), melamine-formaldehyde resin, melamine-urea-formaldehyde resin, phenol-formaldehyde resin, resorcinol-formaldehyde resin (resorcinol- Formaldehyde resin), epoxy resin or a combination of the foregoing.

The ultraviolet curable gel contains a prepolymer, a monomer, and a photoinitiator, and is cured after being irradiated with ultraviolet rays. The prepolymer is, for example but not limited to, epoxy acrylate, poly(urethane acrylate), polyether acrylate, polyester acrylate, acrylic resin ( Acrylic resin) or a combination of the foregoing. The monomer is, for example but not limited to, isobornyl acrylate, isobornyl methacrylate, hydroxyethyl methacrylate, tripropylene glycol diacrylate [tri(propylene) Glycol] diacrylate], 1,6-hexanediol diacrylate, diethylene glycol diacrylate, neopentyl glycol diacrylate, Trimethylol propane triacrylate, pentaerythritol triacrylate or a combination of the foregoing.

Preferably, the weight of the adhesive is less than 45 wt% based on 100 wt% of the total weight of the composition. In particular, the coffee material in the composition increases the adhesion between the cork material and the cork material during the subsequent hot pressing process of the sole material, so that the amount of the adhesive can be reduced by adding the coffee material, that is, when When the weight of the adhesive of the composition is less than 45 wt%, in addition to reducing the manufacturing cost of the sole (ie, the slippers), and because the coffee material is added to the composition, the amount of the adhesive can be maintained while reducing the amount of the adhesive used. The joint strength between the respective components of the sole material obtained in the subsequent steps does not cause a decrease in the joint strength due to a decrease in the amount of the adhesive used. More preferably, the adhesive has a weight ranging from 35 to 44 wt%. When the weight of the adhesive is less than 35 wt%, the cork in the composition is less likely to adhere to the coffee grounds, so that the composition is less likely to be subsequently obtained from the sole material; and when the adhesive is When the weight is more than 44 wt%, it is easy to cause waste of cost.

The coffee material refers to a solid residue (such as coffee grounds) left after the coffee has been cooked and brewed, or a solid coffee raw material (such as coffee powder or coffee beans) that has not been cooked and brewed.

Preferably, the coffee material has a weight ranging from 5 to 15 wt% based on 100 wt% of the total weight of the composition. More preferably, the coffee material has a weight ranging from 7 to 13 wt%.

< Sole material >

The material of the sole of the novel eco-slipper is formed by the aforementioned composition for forming a sole material.

Preferably, the material of the sole is obtained according to the following steps: (1) mixing cork, decomposable adhesive and coffee material to obtain the composition for forming the sole material; and (2) hot pressing The composition for forming a sole material to obtain the material of the sole.

Preferably, the hot pressing temperature ranges from 140 to 155 °C. More preferably, the hot pressing temperature ranges from 145 to 150 °C.

Preferably, the hot pressing time ranges from 350 to 550 seconds. More preferably, the hot pressing time ranges from 360 to 540 seconds.

The present invention will be further described in the following examples, but it should be understood that this embodiment is only illustrative and should not be construed as limiting.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

< Preparation example >

Preparation of cork

The softwood is obtained after the scrap remaining in the process of producing the cork is broken.

< Example >

Preparation of cork board ( Sole material )

The cork sheet of the examples was prepared according to the following steps: Step (1) - Preparation of a composition for forming a sole material: mixing 50 wt% of the preparation of the softwood, 40 wt% of the polyurethane glue (PU glue; manufacturer: Badische Anilin-und-Soda-Fabrik; model: Elastan TC 8008 CB) and 10 wt% coffee grounds gave the composition used to form the sole material. Step (2) - Hot pressing: The composition for forming a sole material is placed in a mold and hot pressed by a hot press to obtain the cork sheet. Among them, the hot pressing temperature is 145~150 °C, and the hot pressing time is 360~540 seconds. In addition, since the PU glue contains water, the weight of the polyurethane (PU) in the composition is actually less than 40 wt%, and in the hot pressing process, the water in the PU glue is also evaporated by heat. Drop it.

The eco-friendly slippers made of the cork board of the foregoing embodiment are described in more detail below:

Referring to FIG. 1, a first application example of the novel eco-friendly slippers includes a sole 1 and a shoe ear 2.

The material of the sole 1 is the cork sheet of the embodiment.

The shoe ear 2 is an arched face and is disposed on the sole 1 , and the two sides of the shoe ear 2 are connected to the front edge of the sole 1 . The material of the shoe ear 2 may be a cork board or other kind of decomposable material (for example, pure cotton or the like) of the foregoing embodiment.

Referring to FIG. 2, a second application example of the present invention is similar to the first application example, except that the shoe ear 2 of the second application example is different in construction from the shoe ear 2 of the first application example. The shoe ear 2 of the second application example is a herringbone-shaped shoelace and is disposed on the sole 1, and the three spaced end portions 21 of the shoe ear 2 are connected to the sole 1. The material of the shoe ear 2 of the second application example is a decomposable material, for example, the shoe ear 2 can be a pure cotton cloth or a pure cotton webbing.

It is particularly worth mentioning that the environmentally-friendly slippers of the first and second application examples are less prone to odor after wearing because the material of the sole 1 contains coffee grounds; in addition, due to the material of the sole 1 and the shoe ear 2 They are all decomposable materials and do not contain toxic components such as plasticizers. Therefore, they are harmless to the human body when worn, and they do not burden the environment after disposal.

It should be noted that the shape and configuration of the novel slippers are not limited to the aspects of the slippers shown in the first and second application examples (ie, FIG. 1 and FIG. 2), and only the two components of the sole and the shoe ear are included. Slippers can be applied to this new type.

In summary, since the coffee material in the composition for forming the sole material is easy to obtain and has the function of deodorizing, the present invention can be reduced in addition to the manufacturing cost of the sole (ie, the novel eco-friendly slippers). The environmentally-friendly slippers are less prone to odor after being worn; in addition, since the cork and the adhesive are all decomposable components, the sole of the environmentally-friendly slippers can also meet the environmental requirements of being decomposable and harmless to the human body. Therefore, the purpose of this novel can be achieved.

However, the above is only the embodiment of the present invention. When the scope of the novel implementation cannot be limited thereto, all simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

1‧‧‧ sole

21‧‧‧ End

2‧‧‧Shoe ear

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a perspective view showing a first application example of the present invention; and FIG. 2 is a top view A second application example of the novel eco-friendly slippers will be described.

Claims (6)

An environmentally friendly slipper comprising a sole and a shoe ear disposed on the sole, wherein the material of the sole is formed by a composition for forming a sole material, the composition for forming the sole material comprising cork a decomposable adhesive and a coffee material for adhering the softwood to the coffee material. The eco-slipper according to claim 1, wherein the coffee material has a weight ranging from 5 to 15 wt% based on 100 wt% of the total weight of the composition. The eco-slipper according to claim 1, wherein the adhesive is selected from the group consisting of viscose, ultraviolet curable glue or a combination thereof, the viscose containing a polymer selected from the group consisting of polyurethane, urea formaldehyde resin, Polyvinyl acetate, polyvinyl alcohol, polylactic acid, melamine-formaldehyde resin, melamine-urea-formaldehyde co-condensation resin, phenolic resin, resorcinol-formaldehyde resin, epoxy resin or a combination thereof. The eco-slipper according to claim 1, wherein the softwood has a weight ranging from 45 to 55 wt% based on 100 wt% of the total weight of the composition. The eco-friendly slipper of claim 1, wherein the adhesive has a weight of less than 45 wt% based on 100 wt% of the total weight of the composition. The eco-slipper according to claim 5, wherein the adhesive has a weight ranging from 35 to 44% by weight based on 100% by weight of the total weight of the composition.