GB2507981B

GB2507981B - A textile product of mixed metal filament yarn

Info

Publication number: GB2507981B
Application number: GB201220544A
Authority: GB
Inventors: Wei Yuanlong
Original assignee: SHANDONG LALELA WOOL SPINNING CO Ltd
Current assignee: SHANDONG LALELA WOOL SPINNING CO Ltd
Priority date: 2012-05-29
Filing date: 2012-11-15
Publication date: 2019-11-20
Anticipated expiration: 2032-11-15
Also published as: CN102704110B; GB201220544D0; GB2507981A; CN102704110A

Description

TITLE: A TEXTILE PRODUCT OF MIXED METAL FILAMENT YARN

The invention is categorized into range of textile technology, involved in a textile product of mixed metal filament yarn and its production process.

BACKGROUND TO THE INVENTION

With the growth in living standard electronic devices are increasingly widely used, from such small devices as hair driers and shavers to such big equipments as refrigerators and air-conditioners, and human's concerns are growing as to the impact on human health from these electromagnetic radiation. There are increasing calls to reduce harm to human body from electromagnetic waves, and metallic filament can prevent electromagnetic radiation, not absorbing electromagnetic waves, being permanently anti-static, antioxidant, corrosion resistant. By applying metallic filament to textiles the manufactured products can be electromagnetic-resistant as well.

Mixed metal filament yam is derived by drawing metal into fine filament in a unique technology with a comparable thinness to the filament of all textile raw materials. It has good flexibility as a result of thinness, but with bad spinning property. Metal filaments are spun together with other textile raw materials such as cotton, animal fibre and chemicals through spinning technology of international level in spinning workshop. As metal can itself reflect electromagnetic waves, textile products woven with metal filaments, just like a metal mesh, become electromagnetic radiation-resistant, while they have either same air permeability and heat retention as cotton and animal fibre, being comfortable to wear and no side-effect to human body.

Beside the characteristics of common sweaters such as heat retention, comfort and air permeability, functional sweaters made by metal filament mixing technology have, because of addition of new super fine conductive stainless steel filaments, a series of functions such as permanently electromagnetic radiation-resistance, permanently static-resistance, corrosion resistance, dust-freeness and good air permeability, etc., along with the unique function of fabric shape memory. Furthermore, previously dull-looking sweaters are filled with dynamic flash by subtle metal luster on fabric, which successfully injects fashion elements to the fabrics and meets current fashion trends. It meets both needs of health and pursuit of fashion.

There is an urgent technical need to make such a textile product of metal filament yarn that is straightforward to manufacture but radiation-resistant, antiseptic and antistatic.

STATEMENT OF INVENTION

The invention aims to solve current technical problems and provide a practical, simple process to produce textiles of metal filament yam with characteristics of electromagnetic radiation-resistance, static-resistance, corrosion resistance, antisepsis, anti-static, dust-freeness and good air permeability.

The above mentioned technical problem is solved by the below technical solution in accordance with a first aspect of the invention: A method of preparing a metal filament yam textile product which is woven with mixed metal filament yams derived by mixing metal filaments with one or more fibrous materials in a weight ratio of 1:40, the method comprising: weighing and pouring stainless steel powder into jar mill containing absolute alcohol, adding aluminum oxide to it in 50:1 ratio of grinding media to material, with ball grinding time to be 12 hours and in normal room temperature, ball grinding in velocity of 500rpm until the diameter of stainless steel powder is 1 pm; weighing and pouring copper powder and chromium powder into the jar mill in the weight ratio of copper/chromium/stainless steel to be 1:0.5:10, with ball grinding time to be 24 hours and in grinding velocity of 300rpm; when the absolute alcohol in the jar mill fully evaporates, preparing alloy by hot pressing sintering and forming metal filament in a diameter of 0.1-10 pm by monofilament drawing.

The method further includes a recombing stage, a spinning stage, a weaving stage and a final treatment stage.

The recombing stage includes dyeing, re-washing, drawing, first gilling, combing, second gilling and cabling, in which, a small proportion of drawing is adopted with increasing number of times of mixing and a mixing space is adjusted from the norm of 45mm to the current 50mm; a combing feed amount is adjusted from the norm of 200g to the current 175g in a double crossing arrays arrangement.

The spinning stage includes breaker drawing, undercoat gilling after breaker drawing, two way gilling after breaker drawing, intermediate drawing, undercoat gilling after intermediate drawing, two way gilling after intermediate drawing, three way gilling, four way gilling, roving, fine spinning, automatic spooling, doubling and two-for-one twisting.

The final treatment stage includes dyeing and flat setting, in which, one-time plain boiling is adopted for flat setting with first full decatizing, high-pressure full decatizing, second full decatizing and hot-steaming.

The yams may have a metal filaments/other material weight ratio of 1:40, the other material being at least one of: cotton, animal fibre and chemical fibre, and said metal filament having a diameter of 0.1 pm to 10pm.

Metal filament yarns of the invention are electromagnetic radiation-resistant, antiseptic, anti-static, corrosion resistant and dust-free, etc., along with the unique function of fabric shape memory. Original dull-look fabrics are filled with dynamic flash by subtle metal luster on fabric, which successfully injects fashion elements to fabrics. DESCRIPTION OF PREFERRED EMBODIMENT(S)

The process of metal filaments mainly includes recombing, spinning, weaving and finishing. 1. The process to prepare metal filaments is as below: weigh and pour stainless steel powder into jar mill containing absolute alcohol, adding aluminum oxide to it in 50:1 ratio of grinding media to material, with ball grinding time to be 12 hours and in normal room temperature, ball grinding in velocity of 500rpm until the diameter of stainless steel powder is around 1 pm; Weigh and pour copper powder and chromium powder into the jar mill in the weight ratio of copper/chromium/stainless steel to be 1:0.5:10,with ball grinding time to be 24 hours and in grinding velocity of 300rpm;When the absolute alcohol in the jar mill fully evaporates, prepare alloy by hot pressing sintering and finally by means of monofilament drawing prepare into metal filament in a diameter of 0.1-10 pm. 2. Recombing: dyeing—» re-washing—> drawings gillings combings gillings cabling, in which the better setting way for drawing and combing is as below: (1) Adopting small proportion of drawing with increasing times of mixing (2) Adjusting mixing space from the norm of 45mm to the current 50mm (3) Adjusting combing feed amount from the norm of 200g to the current 175g; with double crossing arrays arrangement

Executing the above steps can reduce damage to metal filaments and so ensure uniform mixture. 3. Spinning: wool topss metal conductive fibre wool tops breaker drawings undercoat gillings two way gillings intermediate drawings undercoat gilling —>two way gillings three way gillings four way gillings roving —>fine spinnings automatically spoolings doublings two-for-one twistings product yarn, in which the better setting way is (1) Reducing the use of wool-mixing oil (2) Appropriately reducing air draft quantity from exhaust inlet to ensure stripes enter drawing zone flat and in parallel (3) Setting additive ratio of super fine conductive metal filament to be 2.5% (4) Other anti-oxide metallic elements can be added before metal filament melting and extending so as to strengthen anti-oxidation ability of the metal filament (5) Because of the conductivity of metal filaments, photoelectric automatic winders are adopted to reduce the failure probability of yarn cleaners (6) Metal filament outleakage and break points are often found in common process. In spinning frame by adjusting equipment the channel wheels for metal filaments to pass through are increased from one to three so that metal filaments are more stable to ensure no metal filament out leakage. (7) Yam size is adjusted to be about 46N, coefficient of twist in the range of 105T/M-110T/M, and the resulting metal filament yarn without out leakage, no breakpoint, of yarn uniformity, feeling good, with woven sweater radiation-resistant.

Executing above steps can reduce damage to metal filaments and so improve yam quality. 4. Weaving: Defects of broken yarn and hair spots easily occur when mixed wool yarns with metallic filaments are knitted in circular knitting machines as a result of crimp elasticity of wool fibre, yarn shortness, long fragment hairiness and less strength of fine wool yarn. By improvement of yarn routine and optimization of circular knitting machine parts, knittability problem is solved, and defects of broken yarn and hair spots resulting from strength problem are overcome and good quality gray fabric is produced 5. Final treatment (1) Dyeing: Dyeing machines of no stress or less stress are chosen to eliminate strength deterioration. J type or O type jet overflow dyeing machines are common options with 90mm nozzle diameter, main pump frequency of pretreatment and final treatment being 26-28 Hz and dyeing main pump frequency 30-32 Hz. It can reduce fabric movement extent in dyeing machine and then fabric abrasion against dyeing machine inwall adjusting nozzle space and water flow speed, so as to reduce pilling and to ensure uniform motion and level-dyeing property of fabric inside equipment. (2) Flat set: As metal filament’s shape memory easily results in fabric scrimp, it’s key point for product control in final treatment process to keep fabric surface flat and no crease. © One-time plain boiling is adopted to reduce fabric abrasion against mechanical parts and prevent fabric scrimp resulting from too much wash, boil and abrasion. ® In process of full decatizing^ high-pressure steams full decatizing^ hot steam is integrated the 2 times full decatizing, one time high-pressure steam and one time hot steam. Fabric evenness is improved by the effect of high temperature and high pressure.

The textile product based on preparation process of the invention was tested with the conclusion as below. The screening factors are 99.27% and 99.64% in frequency of 1500MHz and 2450MHz respectively. The textile product has good function of antiscepsis, with metal icons of strong polarity, leasing more than 10000 anons per square meter of fabric which can effectively restrain such bacteria as Escherichia coli, staphylocicuus aureus, Salmonella typhi, etc. with inhibition ratio above 99%.

What is described above is just concrete implementation way of the invention and protective range of the invention is not just limited to these. Any modification and substitution without creative work fall within the range of invention protection.

Claims

1. A method of preparing a metal filament yam textile product which is woven with mixed metal filament yams derived by mixing metal filaments with one or more fibrous materials in a weight ratio of 1:40, the method comprising: weighing and pouring stainless steel powder into jar mill containing absolute alcohol, adding aluminum oxide to it in 50:1 ratio of grinding media to material, with ball grinding time to be 12 hours and in normal room temperature, ball grinding in velocity of 500rpm until the diameter of stainless steel powder is 1 pm; weighing and pouring copper powder and chromium powder into the jar mill in the weight ratio of copper/chromium/stainless steel to be 1:0.5:10, with ball grinding time to be 24 hours and in grinding velocity of 300rpm; when the absolute alcohol in the jar mill fully evaporates, preparing alloy by hot pressing sintering and forming metal filament in diameter of 0.1-10 pm by monofilament drawing, the method further includes a recombing stage, a spinning stage, a weaving stage and a final treatment stage, wherein the recombing stage includes dyeing, re-washing, drawing, first gilling, combing, second gilling and cabling, in which a small proportion of drawing is adopted with increasing number of times of mixing and a mixing space is adjusted from the norm of 45mm to the current 50mm; a combing feed amount is adjusted from the norm of 200g to the current 175g in a double crossing arrays arrangement; the spinning stage includes breaker drawing, undercoat gilling after breaker drawing, two way gilling after breaker drawing, intermediate drawing, undercoat gilling after intermediate drawing, two way gilling after intermediate drawing, three way gilling, four way gilling, roving, fine spinning, automatic spooling, doubling and two-for-one twisting, the final treatment stage includes dyeing and flat setting, in which, one-time plain boiling is adopted for flat setting with first full decatizing, high-pressure full decatizing, second full decatizing and hot steaming.

2. A method as claimed in claim 1, wherein photoelectric automatic winders are used in the spinning stage.

3. A method as claimed in claim 1 or claim 2, wherein in the spinning stage, a spinning frame having three channel wheels are used for the metal filament to pass through.

4. A method as claimed in any one of the preceding claims, wherein a J type or O type jet overflow dyeing machine is used for dyeing in the final treatment stage, the dyeing machine having a nozzle diameter of 90mm, a pre-treatment and post-treatment main pump frequency of 26Hz to 28Hz, and a dyeing main pump frequency 30Hz to 32Hz.

5. A method as claimed in any one of the preceding claims, wherein the one or more other material is at least one of: cotton, animal fibre and chemical fibre.

6. A method as claimed in any one of the preceding claims, wherein the yams has a size of 46N and a twist coefficient of 105T/M to 110T/M.