KR20230050848A - Composition for button, manufacturing method thereof and button - Google Patents

Abstract

A button composition containing a first biodegradable resin and a second biodegradable resin which is different from the first biodegradable resin and contains all structural units represented by following chemical formulas 1 and 2, a method for preparing the button, and a button manufactured by using the same are provided. In chemical formulas 1 and, each substituent is as defined in the specification. According to the present invention, the button composition contains two different sets of biodegradable resins and thus may have excellent eco-friendliness.

Description

Button composition, its manufacturing method and button {COMPOSITION FOR BUTTON, MANUFACTURING METHOD THEREOF AND BUTTON}

The present disclosure relates to a button composition including an eco-friendly material, a manufacturing method thereof, a button manufactured by the manufacturing method, and a button manufactured using the button composition.

A button is a clothing accessory that gives a decorative effect to a dress, and it is functional, but also plays a role like a brooch that has a large accessory element and shows decorative beauty.

The material of buttons to show functional and decorative effects as described above is very diverse, and natural materials include plant fruit, metal, animal horns, bamboo, glass, shells, ceramics, and combinations thereof. There are products, and artificial materials include casein, acetate, polyester, acrylic resin, etc. However, since artificial materials are relatively cheaper than natural materials, it is a reality that there are many uses.

Among these, buttons made from shells, one of the natural materials, are called shell buttons. Natural shells have been processed and used as buttons for about 200 years, long before artificial materials were developed, and have unique colors and beautiful pearl luster. It has been used in various types of clothing and is still recognized as a high-quality material at home and abroad. However, the price fluctuates widely due to the limited supply, which is a disadvantage of natural materials, and there are disruptions in timely supply and demand, and it is cheaper than artificial materials. The problem is that it is expensive.

That is, buttons made of natural materials are shunned in the market despite having many advantages because their price is too expensive compared to buttons made of artificial materials. However, it is impossible not to use buttons at all, because buttons are essential not only for decorative effect but also for their functional effect, and buttons, which are a functional means necessary for locking and dismantling something, are not necessarily used only for fabric.

Furthermore, as the issue of sustainable development has recently emerged, the problem of environmental pollution of buttons made of cheap artificial materials is emerging.

Under these circumstances, there is an increasing demand for inexpensive, high-quality and eco-friendly buttons.

One embodiment is to provide an eco-friendly button composition comprising different biodegradable resins.

Another embodiment is to provide a button manufacturing method using the button composition.

Another embodiment is to provide a button manufactured by the button manufacturing method.

Another embodiment is to provide a button manufactured using the button composition.

One embodiment is a first biodegradable resin; and a second biodegradable resin that is different from the first biodegradable resin and contains all structural units represented by Formula 1 and Formula 2 below.

[Formula 1]

[Formula 2]

In Formula 1 and Formula 2,

R ¹ is a hydroxy group, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, or a substituted or unsubstituted C6 to C20 aryl group;

L ¹ and L ² are each independently a single bond, a substituted or unsubstituted C1 to C20 alkylene group, or a substituted or unsubstituted C6 to C20 arylene group.

The first biodegradable resin may include a polylactic acid resin, a polybutylene adipate-co-terephthalate resin, a polycaprolactone resin, a polybutylene succinate resin, or a combination thereof.

The second biodegradable resin may have a weight average molecular weight of 100,000 g/mol or more.

The second biodegradable resin may be a copolymer of a compound represented by Formula 1-1 below and a compound represented by Formula 2-1 below.

[Formula 1-1]

[Formula 2-1]

In Formula 1-1 and Formula 2-1,

R ¹ is a hydroxy group, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, or a substituted or unsubstituted C6 to C20 aryl group;

L ¹ and L ² are each independently a single bond, a substituted or unsubstituted C1 to C20 alkylene group, or a substituted or unsubstituted C6 to C20 arylene group.

The copolymer may be a random copolymer.

With respect to the total amount of the button composition, the first biodegradable resin may be included in 80% to 99% by weight, and the second biodegradable resin may be included in 1% to 20% by weight.

The button composition may further include a colorant.

The colorant may include an inorganic pigment.

The inorganic pigment may include carbon black.

With respect to the total amount of the button composition, the first biodegradable resin is included in 80% to 90% by weight, the second biodegradable resin is included in 2% to 15% by weight, and the colorant is included in 1% to 8% by weight. % can be included.

The button composition may further include an acrylic-based reinforcing agent.

The acrylic reinforcing agent may be included in an amount of 1 wt% to 10 wt% based on the total amount of the button composition.

Another embodiment provides a button manufacturing method comprising the step of injection molding the button composition into a button.

The button manufacturing method may further include, after the injection molding, engraving a logo on the surface of the injection-molded button.

In the step of engraving the logo on the surface of the button, a CO ₂ laser or a YAG laser may be used.

Another embodiment provides a button manufactured by the button manufacturing method.

Another embodiment provides a button manufactured using the button composition.

The specific details of other aspects of the present invention are included in the detailed description below.

Since the button composition according to one embodiment includes two sets of biodegradable resins that are different from each other, it is possible to provide buttons that are environmentally friendly, have excellent fastness, and do not contain components harmful to the human body such as heavy metals.

1 is a photograph of a button according to Example 1;
2 is a photograph of a button according to Example 2;
3 is a photograph of a button according to Example 3;
4 is a photograph of a button according to Example 4;

Unless otherwise specified herein, "substituted" to "substituted" means that one or more hydrogen atoms in the functional group of the present invention is a halogen atom (F, Br, Cl or I), a hydroxyl group, a nitro group, a cyano group, an amino group ( NH ₂ , NH(R ²⁰⁰ ) or N(R ²⁰¹ )(R ²⁰² ), wherein R ²⁰⁰ , R ²⁰¹ and R ²⁰² are the same or different from each other, and are each independently a C1 to C10 alkyl group), an amidino group, A hydrazine group, a hydrazone group, a carboxyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted alicyclic organic group, a substituted or unsubstituted aryl group, And means substituted with one or more substituents selected from the group consisting of a substituted or unsubstituted heterocyclic group.

In this specification, unless otherwise specified, "alkyl group" means a C1 to C20 alkyl group, specifically means a C1 to C15 alkyl group, and "cycloalkyl group" means a C3 to C20 cycloalkyl group, specifically C3 to C18 cycloalkyl group, "alkoxy group" means a C1 to C20 alkoxy group, specifically means a C1 to C18 alkoxy group, "aryl group" means a C6 to C20 aryl group, and specifically means a C6 to C20 alkoxy group. Means a C18 aryl group, "alkenyl group" means a C2 to C20 alkenyl group, specifically means a C2 to C18 alkenyl group, "alkylene group" means a C1 to C20 alkylene group, specifically C1 to C18 alkylene group, and "arylene group" means a C6 to C20 arylene group, specifically a C6 to C16 arylene group.

Unless otherwise defined herein, "combination" means mixing or copolymerization. Further, "copolymerization" means block copolymerization or random copolymerization, and "copolymer" means block copolymer or random copolymer.

Unless otherwise defined in the chemical formula within this specification, if a chemical bond is not drawn at a position where a chemical bond is to be drawn, it means that a hydrogen atom is bonded to the position.

Unless otherwise defined in this specification, "*" means a moiety connected to the same or different atom or chemical formula.

The present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed content will be thorough and complete and the spirit of the present invention will be sufficiently conveyed to those skilled in the art.

Conventionally, buttons have been regarded as just accessories that perform functions such as simply fastening or dismantling fabrics, so many people have little interest in buttons themselves, and as a result, other industries have developed remarkably, resulting in various products that accompany them. While technological progress is also being made remarkably, buttons have almost the same composition as they did decades ago, and little research and development on button materials has been done.

However, with the development of the fashion industry, more and more people are looking for fabrics with buttons with excellent decorative functionality, along with the claim that buttons should have a decorative function that gives aesthetic sense away from the conventional functional means. Furthermore, as buttons are applied not only to fabrics but also to all kinds of objects having opening and closing means, and as their application fields widen, the conventional function of buttons, that is, buttons with additional functions other than simple opening and closing means, is increasingly needed. Specific examples include durability that does not damage not only fabric but also buttons during washing due to excellent washing fastness, harmfulness to the body that does not cause health problems even if infants or pets lick or suck it because it does not contain harmful substances such as heavy metals, and discard Demand for buttons and the like having functionality such as eco-friendliness that does not cause environmental pollution when worn is increasing.

Accordingly, the present inventors have collected and analyzed a wide variety of conventional buttons in order to accurately identify the above recent trends and needs and to provide buttons that meet them, but all conventional buttons are made of natural materials such as shells, animal bones, horns, etc. It was manufactured using materials or was only a plastic processed product. Therefore, the need to develop a button material completely differentiated from conventional buttons was confirmed, and after numerous experiments and trials and errors, the present invention was finally completed.

Button composition according to one embodiment is a first biodegradable resin; and a second biodegradable resin that is different from the first biodegradable resin and contains all structural units represented by Formula 1 and Formula 2 below.

[Formula 1]

[Formula 2]

In Formula 1 and Formula 2,

R ¹ is a hydroxy group, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, or a substituted or unsubstituted C6 to C20 aryl group;

L ¹ and L ² are each independently a single bond, a substituted or unsubstituted C1 to C20 alkylene group, or a substituted or unsubstituted C6 to C20 arylene group.

The button composition according to one embodiment includes a biodegradable resin (first biodegradable resin) and a second biodegradable resin having a structure different from the biodegradable resin and including a specific structural unit, so it has excellent environmental friendliness and excellent washing fastness. And, it is possible to manufacture buttons without materials containing heavy metals.

For example, in the case of a button composition containing only one kind of biodegradable resin, it is difficult to mold the button itself, and there is a problem in that the button must be molded using a material containing harmful substances such as heavy metals. Even if a button is molded with a button composition containing only a biodegradable resin alone, durability is greatly reduced, which is not preferable.

In addition, even if two kinds of biodegradable resins are used, it is not possible to provide a button composition having excellent button formability by including only two kinds of biodegradable resins having unconditionally different structures.

For example, the first biodegradable resin may include a polylactic acid resin, a polybutylene adipate-co-terephthalate resin, a polycaprolactone resin, a polybutylene succinate resin, or a combination thereof, but is not necessarily limited thereto. No, if the material can be used as a biodegradable resin, it may be okay to use other biodegradable materials.

For example, the second biodegradable resin may have a weight average molecular weight of 100,000 g/mol or more, for example, 100,000 g/mol to 200,000 g/mol. When the second biodegradable resin has a weight average molecular weight within the above range, the biodegradability of the button composition is further increased to maximize eco-friendliness and durability.

For example, the second biodegradable resin may be a copolymer of a compound represented by Formula 1-1 below and a compound represented by Formula 2-1 below.

[Formula 1-1]

[Formula 2-1]

In Formula 1-1 and Formula 2-1,

R ¹ is a hydroxy group, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, or a substituted or unsubstituted C6 to C20 aryl group;

L ¹ and L ² are each independently a single bond, a substituted or unsubstituted C1 to C20 alkylene group, or a substituted or unsubstituted C6 to C20 arylene group.

For example, the copolymer may be a random copolymer. In this case, since the tensile strength of the second biodegradable resin is increased, durability of a button made of the button composition may be further improved.

For example, with respect to the total amount of the button composition, the first biodegradable resin may be included in 80% to 99% by weight, and the second biodegradable resin may be included in 1% to 20% by weight. The weight ratio of the first biodegradable resin and the second biodegradable resin may greatly affect the eco-friendliness and durability of the button composition according to one embodiment. Specifically, when the content of the first biodegradable resin is less than 80% by weight relative to the total amount of the button composition, the durability of the button composition is greatly reduced, but not only may the button be greatly damaged during washing, but also have a negative effect in terms of biodegradability. there is. In addition, the second biodegradable resin is preferably included in a smaller amount than the first biodegradable resin in that biodegradability is maximized and durability of the button composition is improved. Specifically, the second biodegradable resin is included in the button composition. It may be preferable to include from 1% to 20% by weight relative to the total amount.

For example, the button composition may further include a colorant, and the colorant may be a pigment, but is not necessarily limited thereto, and may include a dye or the like as a colorant.

For example, the colorant may include an inorganic pigment, and the inorganic pigment may include carbon black, black iron oxide, and the like, but is not necessarily limited thereto.

For example, with respect to the total amount of the button composition, the first biodegradable resin is included at 80% to 90% by weight, the second biodegradable resin is included at 2% to 15% by weight, and the colorant is included at 1% to 1% by weight. 8% by weight. When the button composition further includes an additional additive such as a colorant in addition to the first biodegradable resin and the second biodegradable resin, the weight ratio of the components may be changed, which may be very important in terms of durability and biodegradability of the button composition. there is. That is, when the first biodegradable resin, the second biodegradable resin, and the colorant are included in the above weight range, a button made of the button composition according to an embodiment may have excellent durability such as washing fastness and excellent eco-friendliness.

For example, the button composition may further include an acrylic-based reinforcing agent.

For example, the acrylic reinforcing agent may be included in an amount of 1 wt% to 10 wt% based on the total amount of the button composition.

Another embodiment provides a button manufacturing method comprising the step of injection molding the button composition into a button.

Specifically, after mixing the button composition into a pellet, the mixture may be injected using an extruder to manufacture a button.

For example, the button manufacturing method may further include a step (logo marking step) of engraving a logo on the surface of the injection-molded button after the injection molding.

For example, when a logo is engraved on the surface of the button, a CO ₂ laser or a YAG laser may be used instead of a FIBER laser or UV laser, which is often used for injection of metal materials or plastics. In this case, it is possible to increase the price competitiveness of the manufactured button, and above all, it is possible to provide a button that is harmless to the human body because there is no concern that harmful substances such as heavy metals are contained in the button during button manufacturing.

Another embodiment provides a button manufactured by the button manufacturing method.

Another embodiment provides a button manufactured using the button composition.

Hereinafter, preferred embodiments of the present invention will be described. However, the following examples are only preferred examples of the present invention, and the present invention is not limited by the following examples.

(Example)

Preparation of eco-friendly button composition

Button compositions were prepared according to the compositions in Tables 1 and 2 below.

Example One 2 3 4 5 6 7 8 9 10 (A) the first biodegradable resin 90 90 87 87 79 79 91 91 87 80 (B) the second biodegradable resin 2 2 10 10 10 10 6 6 One 16 (C) colorant One One 3 3 4 4 3 3 5 One (D) acrylic reinforcing agent 7 7 - - 7 7 - - 7 3 Logo marking method CO2 laser YAG laser CO2 laser YAG laser CO2 laser YAG laser CO2 laser YAG laser CO2 laser YAG laser

comparative example One 2 3 4 5 6 (A) the first biodegradable resin 100 - 97 - 90 87 (B) the second biodegradable resin - 100 - 97 - - (B') the second biodegradable resin - - - - 2 10 (C) colorant - - 3 3 One 3 (D) acrylic reinforcing agent - - - - 7 - Logo marking method CO2 laser YAG laser CO2 laser YAG laser CO2 laser YAG laser

(A) the first biodegradable resin

Polylactic acid resin (LUMINY LX175, total-corbian)

(B) the second biodegradable resin

Poly(3-hydroxybutyrate-co-4-hydroxybutyrate) (Mirel M4300, Mw: >100,000 g/mol, UL)

(B') the second biodegradable resin

cellulosic fiber

(C) colorant

carbon black

Manufacture of eco-friendly buttons

After injection molding the button compositions according to Examples 1 to 10 and Comparative Examples 1 to 6 into buttons, a logo was marked on the button surface using a CO ₂ laser or a YAG laser to manufacture buttons. On the other hand, in the case of Comparative Examples 1 to 4, buttons were prepared by adding 0.1 parts by weight of a phthalate-based plasticizer to 100 parts by weight of the biodegradable resin because button injection molding was not easy.

(evaluation)

Wash fastness to buttons made of the button compositions according to Examples 1 to 10 and Comparative Examples 1 to 6 (KS K ISO 105-C06: 2010 A2S ((40±2) ℃, 30 minutes, ECE Detergent), hand washing fastness (TWC TM 250 : 2009 ((40±2)℃, 30 minutes, ECE A detergent), dry cleaning fastness (KS K ISO 105-D01:2010 solvent: perchlorethylene), water fastness ( KS K ISO 105-E01:2013) and lead/cadmium/phthalate-based plasticizer content were evaluated, and the results are shown in Tables 3 and 4 below.

Lead/cadmium content (mg/kg, KS C IES 62321:2009 compliance) evaluation device

ICP/AES (detection limit: 10 mg/kg)

Phthalate-based plasticizer content (%, KS M 1991:2016 conformance) evaluation device

Gas chromatograph-mass spectrometry (GC-MS)

(Washing fastness/hand washing fastness/dry cleaning fastness/water fastness)

(Unit: grade) discoloration Contamination (Acetate) Pollution (Cotton) Contamination (Polyamide) Pollution (Polyester) Contamination (Acrylic) Contamination (mother) Appearance condition Example 1 4-5 4-5 4-5 4-5 4-5 4-5 4-5 Good Example 2 4-5 4-5 4-5 4-5 4-5 4-5 4-5 Good Example 3 4-5 4-5 4-5 4-5 4-5 4-5 4-5 Good Example 4 4-5 4-5 4-5 4-5 4-5 4-5 4-5 Good Example 5 2-3 2-3 2-3 2-3 2-3 2-3 2-3 Good Example 6 2-3 2-3 2-3 2-3 2-3 2-3 2-3 Good Example 7 2-3 2-3 2-3 2-3 2-3 2-3 2-3 Good Example 8 2-3 2-3 2-3 2-3 2-3 2-3 2-3 Good Example 9 2-3 2-3 2-3 2-3 2-3 2-3 2-3 Good Example 10 2-3 2-3 2-3 2-3 2-3 2-3 2-3 Good Comparative Example 1 1-2 1-2 1-2 1-2 1-2 1-2 1-2 error Comparative Example 2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 error Comparative Example 3 1-2 1-2 1-2 1-2 1-2 1-2 1-2 error Comparative Example 4 1-2 1-2 1-2 1-2 1-2 1-2 1-2 error Comparative Example 5 1-2 1-2 1-2 1-2 1-2 1-2 1-2 error Comparative Example 6 1-2 1-2 1-2 1-2 1-2 1-2 1-2 error

Appearance Condition Evaluation Criteria

Good: No abnormalities in visual evaluation

Poor: Uneven color or rough surface upon visual evaluation

(Lead/cadmium/phthalate plasticizer content)

lead cadmium phthalate plasticizer Example 1 Ο Ο Ο Example 2 Ο Ο Ο Example 3 Ο Ο Ο Example 4 Ο Ο Ο Example 5 Ο Ο Ο Example 6 Ο Ο Ο Example 7 Ο Ο Ο Example 8 Ο Ο Ο Example 9 Ο Ο Ο Example 10 Ο Ο Ο Comparative Example 1 Ο Ο X Comparative Example 2 Ο Ο X Comparative Example 3 Ο Ο X Comparative Example 4 Ο Ο X Comparative Example 5 Ο Ο Ο Comparative Example 6 Ο Ο Ο

Evaluation standard

O: lead and cadmium content less than 10mg/kg / phthalate-based plasticizer content less than 0.01%

X: lead and cadmium content of 10 mg/kg or more / phthalate-based plasticizer content of 0.01% or more

From Tables 3 and 4, it can be confirmed that the production of eco-friendly buttons is possible since Examples 1 to 10 and Comparative Examples 1 to 6 were all made of biodegradable materials, but Comparative Example 1 In the case of Comparative Example 4, it can be confirmed that button injection molding is not easy without a phthalate-based plasticizer by using the biodegradable material alone, and as a result, buttons harmful to the human body have to be manufactured. Comparative Examples 5 and 6 It can be confirmed that it is possible to manufacture eco-friendly buttons that are harmless to the human body, but that durability is greatly reduced. In addition, by comparing Examples 1 to 4 and Examples 6 to 10, it can be confirmed that the mixing weight ratio of the components constituting the button composition according to one embodiment has a great effect on the durability of the button to be manufactured. there is.

The present invention is not limited to the above embodiments, but can be manufactured in a variety of different forms, and those skilled in the art to which the present invention pertains may take other specific forms without changing the technical spirit or essential features of the present invention. It will be understood that it can be implemented with Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting.

Claims (17)

A first biodegradable resin; and
A second biodegradable resin that is different from the first biodegradable resin and contains all of the structural units represented by Formula 1 and Formula 2 below
A button composition comprising:
[Formula 1]

[Formula 2]

In Formula 1 and Formula 2,
R ¹ is a hydroxy group, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, or a substituted or unsubstituted C6 to C20 aryl group;
L ¹ and L ² are each independently a single bond, a substituted or unsubstituted C1 to C20 alkylene group, or a substituted or unsubstituted C6 to C20 arylene group.
In paragraph 1,
The first biodegradable resin is a button composition comprising a polylactic acid resin, a polybutylene adipate-co-terephthalate resin, a polycaprolactone resin, a polybutylene succinate resin, or a combination thereof.
In paragraph 1,
The second biodegradable resin is a button composition having a weight average molecular weight of 100,000 g / mol or more.
In paragraph 1,
The second biodegradable resin is a button composition comprising a copolymer of a compound represented by Formula 1-1 and a compound represented by Formula 2-1:
[Formula 1-1]

[Formula 2-1]

In Formula 1-1 and Formula 2-1,
R ¹ is a hydroxy group, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, or a substituted or unsubstituted C6 to C20 aryl group;
L ¹ and L ² are each independently a single bond, a substituted or unsubstituted C1 to C20 alkylene group, or a substituted or unsubstituted C6 to C20 arylene group.
In paragraph 4,
The copolymer is a random copolymer button composition.
In paragraph 1,
For the total amount of the button composition,
The first biodegradable resin is included in 80% to 99% by weight,
The second biodegradable resin is a button composition contained in 1% to 20% by weight.
In paragraph 1,
The button composition further comprises a colorant.
In paragraph 7,
The colorant is a button composition comprising an inorganic pigment.
In paragraph 8,
The inorganic pigment is a button composition comprising carbon black.
In paragraph 7,
For the total amount of the button composition,
The first biodegradable resin is included in 80% to 90% by weight,
The second biodegradable resin is included in 2% to 15% by weight,
The colorant button composition contained in 1% to 8% by weight.
In paragraph 1,
The button composition further comprises an acrylic-based reinforcing agent.
In paragraph 11,
A button composition comprising 1% to 10% by weight of the acrylic reinforcing agent based on the total amount of the button composition.
A button manufacturing method comprising the step of injection molding the button composition according to any one of claims 1 to 12 into a button.
In paragraph 13,
After the injection molding, button manufacturing method further comprising the step of engraving a logo on the injection-molded button surface.
In paragraph 14,
The step of engraving the logo is a button manufacturing method using a CO ₂ laser or a YAG laser.
A button manufactured by the button manufacturing method of claim 13.
A button manufactured using the button composition of any one of claims 1 to 12.

Images