US20190003081A1

US20190003081A1 - Method of preparing a fiber filament capable of being identified, and a method of identifying the fiber filament

Info

Publication number: US20190003081A1
Application number: US15/638,400
Authority: US
Inventors: Yaoheng LIANG
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-06-30
Filing date: 2017-06-30
Publication date: 2019-01-03

Abstract

A composite fiber filament is made by combining an unordinary fiber filament into an ordinary fiber filament, mixing two types of fibers or blending filaments of 38 mm and 51 mm. The composite fiber filament is identified under a microscope by observing the characteristics of the above three methods of making the composite fiber. The composite fiber filament made as such will not lead to environmental unfriendly behavior such as damaging the natural environment. By using yarn including this composite fiber filament, fabric pieces or garments can be tracked of which fiber suppliers they are originated from, thereby providing an easy way of tracking and monitoring during the entire process from fiber supply to the release of finished garment products.

Description

BACKGROUND OF THE INVENTION

The present invention relates to the technical field of fiber spinning, and more specifically relates to a preparation method or manufacturing technique composite fiber filament.
In fiber spinning industry and generally in textile industry nowadays, there are numerous manufacturers and companies from raw material supply to garment making. Different manufacturers and companies have different technical abilities and social responsibilities. Therefore, it is necessary to perform effective tracking and monitoring throughout the entire process from fiber spinning up to the release of the finished garment product, so as to prevent malicious behaviors like damaging the environment or faking a high end product by a poor quality product at any stage during the garment making process. Also, effective tracking and monitoring can provide evidence for tracing responsibility in case economic disputes happen due to these malicious behaviors. However, means or measures for tracking, monitoring and tracing responsibility are so far not available in the current fiber spinning industry and generally in textile industry nowadays.

BRIEF SUMMARY OF THE INVENTION

In view of the aforesaid disadvantages now present in the prior art, the present invention provides a method of preparing a fiber filament capable of being identified, and a method of identifying the fiber filament. The fiber filament of the present invention can be easily produced with easy steps of production. Also, the method of identifying the fiber filament is also easy and simple. Thus, the present invention can effectively help raw material suppliers track and monitor the product quality.
The present invention has the following technical scheme:
A method of preparing a fiber filament capable of being identified according to the present invention, wherein the fiber filament comprises an ordinary fiber filament having a circular cross section, and an unordinary fiber filament having a Y-shaped or plus-shaped cross section; an amount of the ordinary fiber filament being used to an amount of the unordinary fiber filament being used is 95%:5%; the ordinary fiber filament and the unordinary fiber filament are blended together by a spinning machine to form a composite fiber filament. To identify the composite fiber filament, cut the composite fiber filament, use a microscope to observe a cross section of the composite fiber filament to identify whether the unordinary fiber filament having the Y shape cross section or the plus-shape cross section exists in the composite fiber filament; the composite fiber filament is therefore being identified and distinguished from a common fiber filament; alternatively, use the microscope to observe parallel surfaces of the composite fiber filament; since a light refractive rate of the unordinary fiber filament having the Y shape cross section or the plus-shape cross section is higher than that of the ordinary fiber filament having the circular cross section, existence of the unordinary fiber filament can be identified by a difference in glossiness between the ordinary fiber filament and the unordinary fiber filament in the composite fiber filament; accordingly, the composite fiber filament can be identified and distinguished from the common fiber filament.
Further, an ordinary spinneret corresponding to the ordinary fiber filament and an unordinary spinneret corresponding to the unordinary fiber filament are mounted together on the spinning machine to produce and obtain the composite fiber filament in one step.
A method of preparing a fiber filament capable of being identified according to the present invention, wherein melt spinning is performed, that is, polyester fiber and polyamide fiber in a ratio of 100%:0.5-1% in terms of amount being used are mixed to form a polymer in a hot melt extruder; a jet nozzle of the hot melt extruder gives out a jet of composite fiber filament; staining test is used for identification of the composite fiber filament; the staining test comprises placing a product made by common fiber filaments currently available in the market and a product made by the composite fiber filaments respectively into a staining agent for 30 seconds to 1 minute, taking the products out of the staining agent and rinse the products with water; observing the products under a microscope and it will be noticed that different fiber materials will be stained with different colors. Accordingly, the composite fiber filament can be identified and distinguished from a common fiber filament. The staining agents used by the staining test include Shirley colorant, iodine and potassium iodide colorant and No. 1 colorant.
A method of preparing a fiber filament capable of being identified according to the present invention, wherein melt spinning is performed, that is, polyester fiber and polyamide fiber in a ratio of 100%:0.5-1% in terms of amount being used are mixed to form a polymer in a hot melt extruder; a jet nozzle of the hot melt extruder gives out a jet of composite fiber filament; after that, the composite fiber filament is cut into sections A each having a length of 38 mm and sections B each having a length of 51 mm; a polymer is formed by mixing sections A and sections B according to a ratio of 80-90%:10-20% in terms of amount being used; use the resulted polymer to produce yarn so that the yarn produced contain the polymer. During identification, use a microscope to observe and measure whether characteristics of section A and section B exist in the yarn. Accordingly, the yarn comprising said polymer can be identified and distinguished from a common yarn.
The present invention has the following beneficial advantages: A composite fiber filament according to the present invention is made by combining an unordinary fiber filament into an ordinary fiber filament, mixing two types of fibers or blending filaments of 38 mm and 51 mm. The composite fiber filament is identified of its source under a microscope by observing the characteristics of the above three methods making the composite fiber. This method of identification is simple and easy, and will not lead to environmental unfriendly behavior such as damaging the natural environment while making this kind of composite fiber filament. By using yarn including this kind of composite fiber filament, fabric pieces or garments can be traced back and identified of which fiber suppliers they are originated from. Therefore, the present invention provides an easy way of tracking and monitoring during the entire process from fiber supply to the release of finished garment products. As such, malicious behaviors like damaging the environment or faking a high end product by a poor quality product at any stage during the garment making process cannot be evaded from tracking and tracing. Also, effective tracking and monitoring can provide evidence for tracing responsibility in case economic disputes happen due to these malicious behaviors. The composite fiber filament of the present invention can be easily produced with easy steps of production. Also, the method of identifying the composite fiber filament is also easy and simple. Thus, the present invention can effectively help raw material suppliers track and monitor the product quality.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a sectional view of an ordinary circular fiber filament, and a sectional view of a circular nozzle for producing the ordinary circular fiber filament.

FIG. 2 shows a sectional view of an unordinary fiber filament having a Y shape, and a sectional view of a Y shaped nozzle for producing the unordinary fiber filament having the Y shape.

FIG. 3 shows a sectional view of an unordinary fiber filament having a plus-shape, and a sectional view of a plus-shaped nozzle for producing the unordinary fiber filament having the plus shape.

FIG. 4 is a sectional view of a composite fiber filament by blending the unordinary fiber filament having the Y shape and the ordinary circular fiber filament.

FIG. 5 is a sectional view of a composite fiber filament by blending the unordinary fiber filament having the plus-shape and the ordinary circular fiber filament.

DETAILED DESCRIPTION OF THE INVENTION

Embodiment

1

As shown in FIGS. 1-3, the fiber filament capable of being identified according to the present invention comprises an ordinary fiber filament 1 having a circular cross section, and an unordinary fiber filament 2 having a Y-shaped or plus-shaped cross section; an amount of the ordinary fiber filament being used to an amount of the unordinary fiber filament being used is 95%:5%; the ordinary fiber filament and the unordinary fiber filament are blended together by a spinning machine to form a composite fiber filament 3.
The composite fiber filament 3 is obtained by melt blending of the ordinary fiber filament 1 and the unordinary fiber filament 2. As shown in FIG. 1, the ordinary fiber filament 1 has a circular cross section. The ordinary fiber filament 1 is generally obtained through a jet of filament from a circular nozzle 4 of the spinning machine. As shown in FIGS. 2-3, the unordinary fiber filament 2 having a Y shape cross section or a plus-shape cross section is obtained through a jet of filament from Y shaped nozzle 5 or a plus-shaped nozzle 6 of the spinning machine respectively.
In actual implementation, an ordinary spinneret corresponding to the ordinary fiber filament 1 and an unordinary spinneret corresponding to the unordinary fiber filament 2 are mounted together on the spinning machine to produce and obtain the composite fiber filament 3 in one step so as to increase production efficiency. In other words, the circular nozzle 4 is provided on the ordinary spinneret, and the Y-shaped nozzle 5 or the plus-shaped nozzle 6 are provided on the unordinary spinneret. During operation, the spinning machine will give out both jets of ordinary fiber filament 1 and unordinary fiber filament 2, and then the ordinary fiber filament 1 and the unordinary fiber filament 2 will mix to create the composite fiber filament 3. In other words, the spinning machine being used is a kind of spinning machine with blending function, which can be called a textile fiber blender, which is a common type of machine being used in fiber spinning industry and in general in textile industry. The present invention achieves its purpose by simultaneously providing both the ordinary spinneret and unordinary spinneret on a commonly available textile fiber blender.
The composite fiber filament 3 obtained according to the present invention comprises the ordinary fiber filament 1 having a circular cross section and the unordinary fiber filament 2 having a Y shape cross section, or comprises the ordinary fiber filament 1 having a circular cross section and the unordinary fiber filament 2 having a plus-shape cross section. Different unordinary fiber filaments have different thicknesses, different frictional coefficients, different bending properties and different fiber strengths etc. The present invention proposes a ratio of 95%:5% for the amount of ordinary fiber filament 1 being used and the amount of unordinary fiber filament 2 being used. This ratio is set for the purposes of preventing excessive change of style of the subsequently made textile product, and preventing the potential risks of the subsequent use of the product due to the influence of weaving efficiency because of the unordinary changes of the cross sections of the filaments during weaving process of the filaments.
To identify the filament, cut the composite fiber filament 3, use a microscope to observe the cross section of the composite fiber filament 3 to identify whether the unordinary fiber filament 2 having a Y shape cross section or a plus-shape cross section exists in the composite fiber filament 3. The composite fiber filament 3 is therefore being identified and distinguished from a common fiber filament.
Alternatively, use the microscope to observe parallel surfaces of the composite fiber filament 3. Since the light refractive rate of the unordinary fiber filament 2 having a Y shape cross section or a plus-shape cross section is higher than that of the ordinary fiber filament 1 having a circular cross section, existence of the unordinary fiber filament 2 can be identified by a difference in glossiness between the ordinary fiber filament 1 and the unordinary fiber filament 2 in the composite fiber filament 3. Accordingly, the composite fiber filament 3 can be identified and distinguished from a common fiber filament.

Embodiment 2

In this embodiment, melt spinning is performed. Polyester fiber and polyamide fiber in a ratio of 100%:0.5-1% in terms of amount being used are mixed to form a polymer in a hot melt extruder. A jet nozzle of the hot melt extruder gives out a jet of composite fiber filament. The composite fiber filament made according to this ratio will not affect the overall ingredients subsequently applied to the fabric, and will not affect the quality of spinning, and also will not affect subsequent stages of weaving and garment manufacturing. Polyester fiber has a melting point of 215-220° C. Polyamide fiber has a melting point of 255-260° C.
Staining test is used for identification of the composite fiber filament. Place a product made by common fiber filaments currently available in the market and a product made by the composite fiber filaments respectively into a staining agent for 30 seconds to 1 minute, take the products out of the staining agent and rinse the products with water; observe the products under a microscope and it will be noticed that different fiber materials will be stained with different colors. Accordingly, the composite fiber filament can be identified and distinguished from a common fiber filament.
The staining agents used by the staining test include Shirley colorant, iodine and potassium iodide colorant and No. 1 colorant. Per unit of the iodine and potassium iodide colorant comprises the following ingredients: iodine 20 g, saturated potassium iodide solution 100 ml; these two ingredients form a unit of the iodine and potassium iodide colorant after mixing them together. Per unit of the No. 1 colorant has the following ingredients: disperse yellow (SE-6GFL) 3 g, cationic red (X-GFL) 2 g, direct fast blue (B2RL) 8 g and distilled water 1000 g; these four ingredients form a unit of the No. 1 colorant by mixing them together. During actual use, per unit of the No. 1 colorant has to be diluted 5 times with water before use. Shirley colorant is a common colorant used in the textile industry and known to a person skilled in this field of art, and so will not be described in detail herein.
As shown in the table below, after this kind of composite fiber filament is used for blending yarn or fabric, existence of this composite fiber filament in the yarn or fabric can be identified according to different colors resulted from the staining test.


		Iodine and
	Shirley	potassium iodide	No. 1
Name of material	colorant	colorant	colorant

Polyester fiber	Light red	Not stained	Ruby
polyamide fiber	Pale yellow	Blackish brown	Garnet red
Cotton	blue	Not stained	Grey
Glue	Purplish red	Blackish blue-grey	cyan

Embodiment 3

In this embodiment, melt spinning is performed. Polyester fiber and polyamide fiber in a ratio of 100%:0.5-1% in terms of amount being used are mixed to form a polymer in a hot melt extruder. A jet nozzle of the hot melt extruder gives out a jet of composite fiber filament. After that, the composite fiber filament is cut into sections A each having a length of 38 mm and sections B each having a length of 51 mm; a polymer is formed by mixing sections A and sections B according to a ratio of 80-90%:10-20% in terms of amount being used; use the resulted polymer to produce yarn so that the yarn produced contain the polymer.
During identification, use a microscope to observe and measure whether characteristics of section A and section B exist in the yarn. Accordingly, the yarn comprising said polymer can be identified and distinguished from a common yarn.
In the present embodiment, sections A and sections B form a polymer first and this polymer is then used to produce yarn in order to obtain the required yarn. Polyester fiber is known to be susceptible to pilling on garment surface. The shorter the polyester fiber is, the easier the pilling will occur. Longer polyester fiber can strengthen the fiber and thus causes less pilling. However, longer polyester fiber will produce a piece of fabric overly hard and not soft enough. The present invention overcomes the disadvantage of polyester fiber caused by its own natural property without affecting too much the texture of the fabric produced, and at the same time the source of fiber can be identified by the length of fiber. To attain the above objects, the present invention uses sections A each having a length of 38 mm and sections B each having a length of 51 mm at a ratio of 80-90%:10-20% in terms of amount being used. As such, the pilling problem on the fabric can be effectively solved, and the strength of the composite fiber filament is increased. Depending on different contents in the raw materials used for blending, and the difference in ratio of the raw materials being used, strength of the composite fiber filament can be increased by 1.5%-5%. During identification, use a microscope to observe and measure fiber lengths to identify and distinguish the composite fiber filament from a common fiber filament.
What should be noted is that, during implementation of the present invention, the technique relating to the unordinary cross section as described in embodiment 1, the technique relating to mixed fiber as described in embodiment 2 and the technique relating to the blending by using sections A and B can be independently executed for observation of fiber under a microscope so as to identify and distinguish the source of fiber, fabric or garment. Alternatively, the three embodiments can be applied to a product at the same time so that fiber is observed through a microscope according to all the three embodiments to identify and distinguish the source of fiber, fabric or garment.

Claims

What is claimed is:

1. A method of preparing a fiber filament capable of being identified and a method of identifying the fiber filament, wherein the fiber filament comprises an ordinary fiber filament having a circular cross section, and an unordinary fiber filament having a Y-shaped or plus-shaped cross section;

the method of preparing a fiber filament capable of being identified comprises the following steps: setting an amount of the ordinary fiber filament being used to an amount of the unordinary fiber filament being used as 95%:5%, and then blending the ordinary fiber filament and the unordinary fiber filament together by a spinning machine to form a composite fiber filament;

the method of identifying the fiber filament comprises the following steps: cutting the composite fiber filament, and then using a microscope to observe a cross section of the composite fiber filament to identify whether the unordinary fiber filament having the Y shape cross section or the plus-shape cross section exists in the composite fiber filament; the composite fiber filament is therefore being identified and distinguished from a common fiber filament;

alternatively, using the microscope to observe parallel surfaces of the composite fiber filament; since a light refractive rate of the unordinary fiber filament having the Y shape cross section or the plus-shape cross section is higher than that of the ordinary fiber filament having the circular cross section, existence of the unordinary fiber filament is identified by a difference in glossiness between the ordinary fiber filament and the unordinary fiber filament in the composite fiber filament; accordingly, the composite fiber filament is identified and distinguished from the common fiber filament.

2. The method of preparing a fiber filament capable of being identified and the method of identifying the fiber filament as in claim 1, wherein an ordinary spinneret corresponding to the ordinary fiber filament and an unordinary spinneret corresponding to the unordinary fiber filament are mounted together on the spinning machine to produce and obtain the composite fiber filament in one step.

3. A method of preparing a fiber filament capable of being identified and a method of identifying the fiber filament, wherein the method of preparing the fiber filament comprises melt spinning, that is, mixing polyester fiber and polyamide fiber in a ratio of 100%:0.5-1% in terms of amount being used to form a polymer in a hot melt extruder, and then giving out a jet of composite fiber filament from a jet nozzle of the hot melt extruder;

the method of identifying the fiber filament comprises staining test, that is, placing a product made by common fiber filaments currently available in the market and a product made by the composite fiber filaments respectively into a staining agent for 30 seconds to 1 minute, taking the products out of the staining agent and rinsing the products with water; observing the products under a microscope, and it will be noticed that different fiber materials will be stained with different colors; accordingly, the composite fiber filament is identified and distinguished from a common fiber filament;

the staining agent used by the staining test includes Shirley colorant, iodine and potassium iodide colorant or No. 1 colorant.

4. A method of preparing a fiber filament capable of being identified and a method of identifying the fiber filament, wherein the method of preparing the fiber filament comprises melt spinning, that is, mixing polyester fiber and polyamide fiber in a ratio of 100%:0.5-1% in terms of amount being used to form a polymer in a hot melt extruder; giving out a jet of composite fiber filament from a jet nozzle of the hot melt extruder; after that, cutting the composite fiber filament into multiple sections A each having a length of 38 mm and multiple sections B each having a length of 51 mm; mixing sections A and sections B according to a ratio of 80-90%:10-20% in terms of amount being used to form a second polymer; using the resulted second polymer to produce yarn so that the yarn produced contain the second polymer;

the method of identifying the fiber filament comprises using a microscope to observe and measure whether characteristics of section A and section B exist in the yarn; accordingly, the yarn comprising said second polymer is identified and distinguished from a common yarn.