TWI557292B - Dyed olefin yarns and textile fabrics using such yarns - Google Patents

Description

Method for dyeing olefin fibers, yarns, fabrics and films and articles thereof

This invention relates to the use of olefin pellets, olefin fibers or olefin yarns which have been modified to receive low temperature dyeing, yarns and fabrics and films.

Related patents

The present invention is closely related and in some respects represents an improvement to my U.S. Patent No. 8,759,430.

Expert knowledge of fiber extrusion technology, the extruder melts the polymer, and the barrel screw forces the molten polymer through the nozzle. The spinner is similar to a showerhead and contains many fine holes. The molten polymer exiting the pores forms a molten long fiber. These long fibers have a diameter. The long fiber diameter size increases from the diameter of the cotton long fiber industry to the diameter of the hair. The finer pores make long fibers suitable for garments, and as the aperture increases, long fibers are suitable for use in felts and upholstery such as upholstery, curtains and carpets.

When the polymer used to produce the long fibers is nylon, the resulting fibers or yarns are made into a textile which can be dyed by a nylon dyeing system. Nylon dyeing systems are carried out at temperatures ranging from 175 to 200 °F, using water as a solvent, along with other chemicals, known to nylon dyeing technology experts. It is not necessary to dye at an atmospheric pressure in an economical way.

If the polymer used to produce long fibers or fibers is polypropylene (PP), it is not dyed by a nylon dyeing system.

The olefins used in the textile sector are typically polypropylene, but any olefin polymer can be modified with the present invention. The dyeing system of the present invention is used in the same manner as the system used for dyeing nylon. Any expert who dyes nylon technology can dye the modified yarns and fabrics made by the present invention. The nylon dyeing system is unique in that the dye is applied at normal atmospheric pressure. The solvent is water and can be effectively used at temperatures between 175 °F and 212 °F.

Polypropylene is often dyed by a pigment dye system, which is polymerized at the time of extrusion. Coloring. The woven fabric of the yarn of the present invention is made into a natural (i.e., undyed) product by knitting, interlacing, tufting or non-woven. The dyeing enhancement additive (sometimes referred to herein as the "masterbatch") is melt blended into the yarn or fiber to allow the fabric to pass through the dye bath. The dyeing enhancement additive used in the process is a polymer combination readily available to experts in fiber or yarn extrusion techniques. The use of the present invention does not require skilled chemical personnel.

When a plurality of terminal yarns embodied in the present invention are used, they may each contain different percentages of dye receiving additives. When the yarn is made into a fabric, the fabric can be dyed in a plurality of shades in a single dye bath. When the amount of dyeable additive in the olefin yarn or fiber is increased, the affinity for dyeing naturally increases. Fabrics made in accordance with the present invention may be stored in the dyehouse in an undyed state. The colorant is added using a conventional nylon dyeing machine or printing method. The use of an economical nylon dyeing system known to the skilled artisan can achieve unexpected new effects. The invention is particularly useful in the apparel, carpet and home furnishings industries. The olefin fabric produced has a feel and appearance similar to that of conventional fabrics, but is about 30-38% lighter. Gain is actually 0.91 in terms of olefin specific gravity.

Brief description of related technology

Knitted and interwoven fabrics and textiles are huge worldwide companies. Cotton is the primary choice for fibers used to make interwoven or knitted garments. Many cotton spinning systems are universal. Cotton yarns are easy to manufacture using cotton spinning systems for both clothing and home furnishings.

Egyptian cotton and American cotton

The most common system for coloring fabrics is to dye interwoven, knitted, tufted or non-woven fabrics. Place the fabric in a machine containing water, dyes and chemicals. Adjust the temperature of the liquid or dye bath to the desired level. Skilled operators use this process to create the desired hue on the fabric. The fabric is dried and finished in accordance with consumer specifications. Dyeing houses are capital intensive and contain expensive dyes and finishing equipment. In addition to dyeing, dyeing houses also have drying and finishing equipment such as compactors, chemical equipment, and rolling or folding machines.

Dyed cloth is cut, sewn clothing or home accessories such as decorative fabrics, bedspreads, rugs or curtains. Blankets are usually not made of cotton, but mainly by synthetic fibers. Nylon is the best synthetic fiber for making blankets. Blanket dyeing technologists can use the same techniques to dye the articles of the invention.

Synthetic fiber

There have been many attempts to create synthetic fibers or yarns that are useful as a good alternative to cotton and can be processed on conventional textile equipment. The demand for cotton in the world makes non-introduction of synthetic fiber substitutes impossible, because the number of acres is not enough to produce enough cotton to cope with population growth. For the supply of fabrics and garments, it is not necessary to manufacture synthetic fiber substitutes to replace or mix cotton.

In the apparel and home furnishings industry, there is a great need for synthetic yarns or fabrics that have novel features. The ideal synthetic fiber can be used to make yarns for fabrics, similar to fabrics made from cotton or cotton and synthetic fibers. Most cotton is dyed at atmospheric pressure using cotton dye. Ideal for both synthetic and cotton blends, it can also be dyed at atmospheric pressure. The invention can conveniently dye polypropylene, olefin, or a mixture of cotton and such synthetic fibers at atmospheric pressure.

Olefins

The olefin is a fiber produced and consists of at least 85% ethylene, propylene or other olefin units. Olefins are an ideal substitute for cotton, except in fact not easily dyed by conventional dyeing or printing systems. Olefins are easily made into fibers in an economical manner, just like a cotton-like touch. It is known that fibers of 1.2 to 1.8 denier per long fiber are cut into 1.5" to 2" staple lengths, which is an ideal substitute for cotton yarns, and yarns are produced using a cotton spinning system. In addition, the reasons why olefins are useful are as follows:

Olefin staples are handled well on non-woven machines

Olefin fabric feels similar to cotton

Fast drying of olefins

Olefins are permeable to water but maintain body temperature

Olefin is very antifouling

Disadvantages of olefin fibers and yarns

The main drawback of olefins is the fact that the fibers cannot be dyed by conventional dyeing systems. Almost all olefin fibers and yarns are dyed with pigments and solutions. Fabrics made from pigmented yarns cannot be dyed into a fashionable hue according to the order. This makes the fabric manufacturing expensive and the stock is too large to be managed in the clothing and home furnishings industry. Pigment-colored olefins are mainly used to produce level loop carpets.

It is an object of the present invention to use a polymer extruder to mix active ingredients into polypropylene or other olefin polymers to produce fibers, yarns or films which can be dyed by a technologist using nylon dyeing. This can be achieved by an extruder, which is made into a masterbatch (sometimes referred to as "dyeable concentrate" or "concentrate"), which is granulated and then mixed with the olefin component in an extruder. Alternatively, the active ingredient may be combined with an olefin to form granules which are ready to be extruded into fibers or yarns which can be dyed by nylon dyeing. The active ingredient of the present invention can also be mixed with a polymer in an extruder to directly extrude the fiber. The yarn or yarn can be dyed by nylon dyeing.

Furthermore, it is an object of the present invention to create a novel knit, tufted, interwoven or non-woven fabric using synthetic yarns having many of the characteristics of cotton yarn. It is another object of the present invention to dye at atmospheric pressure. In order to interweave the fabric, the fabric must be qualified, and the original color can be obtained. It is easy to dye in a conventional system and has a soft touch; the fabric must be able to "breath" and absorb moisture from the body. Fabrics made using the synthetic yarns of the present invention are easily washable, whether by hand or by machine, and are not contaminated by ordinary household food. The fabrics of the present invention also have superior light and washfast properties.

Other objects and scope of the present invention will be apparent from the following detailed description. It is to be understood that the detailed description and examples are merely illustrative, as the various changes and novels within the spirit of the invention are known to the skilled art.

Although cotton spinning systems are the most widely used systems, technologists can produce fibers from any conventional spinning system to make yarn. A more common spinning method, such as jet, free end, worsted, woollen, modified worsted. Fiber length and Danny number can be varied to match any spinning system. The modified worsted system is almost always used to spin the blanket yarn.

In addition to the staple fibers spun into yarn, there is a large production of continuous filament yarns. Continuous filament yarns are usually made of polypropylene for use in clothing. The most common size is 70 to 50 Danny. The invention is applicable to fibers or continuous filament yarns. BCF or machine-spun blanket yarns can also be made using the present invention.

Briefly, the present invention relates to a process for the synthesis of olefin yarns and fibers using dyeability to produce knitted, tufted, interwoven and non-woven fabrics which are susceptible to dyeing and which can be treated by commercially available nylon dyeing systems.

Detailed description of the masterbatch of the invention

This invention relates to the use of olefin yarns or fibers to produce knit, tufted, interwoven or non-woven or film to enhance the acceptance of dyes at atmospheric pressure. The olefin component of the fiber or yarn cannot be dyed, but the masterbatch additive melt blended into the olefin of the present invention can receive the dye, which is used in dyeing equipment to dye nylon, or a mixture of nylon and cotton. The present invention uses a small percentage of the compounded additive masterbatch, mixed with untreated olefins in a standard fiber extruder to create yarns which can be made into interwoven, knitted, velvet or non-woven fabrics. The fabric of the present invention is stored as an unpigmented stock. When the fabric of the present invention is dyed, it is not necessary to usually use a very high temperature for dyeing the fibers. The ideal temperature for the dyeing process is 175 °F - 200 °F. It is not necessary to use a pressure dyeing machine to achieve moderate dye coloration. Compared with the conventional program, the invention saves energy by 50%. When the fabric of the present invention is dyed, a bright hue of any color can be achieved.

Example

In addition to only a single color, the use of a piece dyeing system makes it easy to achieve a tonal effect. The olefin yarn mixed dyeable concentrate accounts for 1% to 20% by weight of the finished product and can be used to make a fabric which is dyed in a single dye bath to a plurality of shades of the same hue. This is achieved by melt blending the varying strength of the specific dyeable concentrate of the present invention into olefin fibers or yarns. For example, a yarn A having a 10% dyeable concentrate, a yarn B having a 4% dyeable concentrate, and a yarn C having a 1.5% dyeable concentrate are prepared. The yarns A, B, and C are placed together on a fabric forming machine, such as a tufting or interlacing machine, and the resulting fabric is dyed into a novel one color three monotones in a single dye bath. One is dark, one is middle, and one is light. The concentration of the concentrate in the compounded mixture for this purpose ranges from 1% to 15% by weight.

When the fabric consists of two different dye contents (i.e., the masterbatch concentrate content) and a yarn without any concentrate, the resulting fabric is a yarn of two shades and a white (undyed) yarn. This appearance has a novel and unexpected effect. Technical experts will find that using the present invention, novel fabrics can be made in a number of pleasing ways.

Monochrome phase

Fabrics made from modified dyeable olefin yarns can be dyed into a monochromatic phase if they are made from yarns containing only one level of dyeable concentrate. (It should be noted that "dyeable olefin" or "dyeable polypropylene" as used herein refers to an olefin or polypropylene which can be dyed at atmospheric pressure using a nylon dyeing procedure unless otherwise specified in the context. A preferred amount of the dyeable concentrate mixed with the untreated olefin for this purpose is 8% by weight of the finished product. Other concentrations can be used to vary the dye uptake, but a mixture of known concentrates of 8% by weight of the finished product gives a superior monochromatic phase.

U.S. Patent No. 5,130,069 to Tietz shows a drying procedure for polypropylene fibers wherein the polypropylene fibers are modified with nylon 6,6 and several other constituents of the fibers when the fibers are fluffy. To prepare dye-receiving additives, a high pressure (250 psi) autoclave is used at a temperature of 200-290 °C. Furthermore, the nylon 6,6, which is in the form of nylon crystal, is completely unsuitable for the clothing fiber, and the crystalline nylon is quickly clogged because it must be extruded through the spinning nozzle. It is also difficult for the fibers to be uniformly dyed because the obtained composition is non-uniform by the use of the crystalline nylon 6,6.

The present invention can be used to produce dyeable polypropylene by the following "off frame" component. Any technical expert in the extrusion of fibers or granules can practice the invention.

Active ingredients and components of the masterbatch of the invention

Amorphous nylon: This material is selected for use because it uses a nylon dyeing system. dye. It is not crystalline and can be uniformly dispersed during melt extrusion. This material can be granulated. Will not block the pores of the spinning nozzle. The preferred supplier is EMS-GRIVORY America. Product Description G-16 or XE-3830.

Maleic anhydride (MAH) modified polypropylene: This material allows compatibility of different polymers (nylon and/or olefin). Maleic anhydride is reacted with polypropylene and is commercially available as a granule from the supplier. A preferred material is a maleic anhydride modified homopolypropylene produced by Polyram (Israel). This product is distributed in the United States by Harry Gaffney Ltd. under the brand name Bondyram 1001, which is equivalent to the MAH #3200 sold by Harry Gaffney. Especially for fine denier fibers, a useful substitute for maleic anhydride-modified polypropylene is the linear low-density polyethylene modified by maleic anhydride produced by Polyram, which is also distributed by Harry Gaffney in the United States. The brand is Bondyram 4108.

Nylon 6 or 6, 6: in granular form, available from various suppliers.

In practicing the present invention, a technologist can make a masterbatch, add it to a polypropylene fiber extruder, and make and extrude into a fiber, yarn or film, which can be dyed at atmospheric pressure using a nylon dyeing system. It can also be made into mixed granules containing a masterbatch premixed with polypropylene, which can be extruded into finished polypropylene fibers, yarns or films, which can be dyed by nylon dyeing. If desired, with the appropriate extruder equipment, the masterbatch component can be incorporated directly into the extruder along with the polypropylene to achieve the extruded product of the desired mixture. The polypropylene component of the blend has a melt flow index (MFI) of 18-35. The extrusion temperature for mixing, mixing and extruding the masterbatch or the dyeable olefin mixture is required to be in the range of 250 ° C to 260 ° C to obtain the best results.

The masterbatch of the present invention preferably contains 10% to 50% of amorphous nylon, more preferably 20% or more of amorphous nylon. Otherwise, nylon 6 or nylon 6,6 will be too crystalline and will not be properly squeezed. In theory, 90% of the masterbatch is composed of amorphous nylon. However, amorphous nylon is quite expensive, and an important object of the present invention is to add a significant percentage of nylon 6 and/or nylon 6,6 to the mixture to reduce cost while maintaining performance. In the masterbatch of the present invention, nylon 6 or nylon 6,6 is present in an amount ranging from 80% to 40%. Regardless of the relative proportion of amorphous nylon 6 or nylon 6,6, the masterbatch preferably contains about 10% MAH modified polypropylene. For best results, the masterbatch pellets are dried at a temperature of about 190 °F for about 4 hours.

In the process of the present invention, the above masterbatch may be combined with polypropylene in a range of from 1 to 20% of the masterbatch to from 99% to 80% of the polypropylene, and a melt flow index (MFI) of from 18 to 35. Finished fiber or yarn A beneficial form, typically comprising 0.75% to 5% amorphous nylon, 1.95% to 13% nylon 6 and/or 6,6, 0.3% to 2% MAH modified polypropylene, and 97% to 80% polypropylene, Melt Flow Index (MFI) 18-35. Nylon 6 or 6, 6 can be used interchangeably, either alone or in a mixture.

Dyeable olefin

According to the present invention, a preferred method of causing the polyolefin to be dyed by a nylon dyeing method is as follows: the above amorphous nylon, a polypropylene modified with maleic anhydride, and a masterbatch of nylon 6 or 6,6, Mixed with polyolefin. Amorphous nylon is uniquely beneficial and, due to its amorphous nature, is easily dispersed into the polypropylene at temperatures that do not destroy the properties of the olefin. Further, nylon 6 or 6,6 is mixed with amorphous nylon, and when combined, no fibrils are produced at the time of extrusion. The polypropylene modified with maleic anhydride makes the nylon compatible with polypropylene. Using the components of the present invention, extrusion technologists can use conventional fiber extruders to make polyolefin fibers or continuous long fiber yarns. This is done without special equipment. The olefin fibers or yarns produced using this system can be dyed by nylon dyeing. The masterbatch of the present invention uses EMS-GRIVORY America's amorphous nylon product, called G-16 or XE-3830, and Harry Gaffney uses about 1% maleic anhydride modified polypropylene (18-35 MFI) No. 3200, and nylon 6 or 6,6 available from various suppliers.

Masterbatch additive examples:

(1) A "standard" mixture of 25% amorphous nylon, 65% nylon 6 or 6, 6 and 10% MAH modified polypropylene is extruded into granules as a masterbatch or concentrate. The masterbatch is 10% mixed with olefin polymer 90%, and the extruded fiber or yarn contains 2.5% amorphous nylon, 1% MAH modified polypropylene, 6.5% nylon 6 or 6,6, and 90% polypropylene. , melt flow index 18-35. The obtained fiber or yarn is dyed at a high pressure using a nylon dyeing method.

The above specific examples are only an initiative, and the extrusion technology experts can vary the masterbatch composition and the blending percentage according to the experiment, and the secondary needs. The technical expert can also dry mix the formulation of the invention into the extruder.

The polymer used in the present invention has the following characteristics:

1. It can pass through the fine hole in the spinning nozzle

2. The components are evenly distributed in the fiber

3. Accept dyes using nylon dyeing system

4. The appearance and feel of the obtained fiber or long fiber are "normal"

5. There are commercial and economic uses.

The following examples illustrate the use of the present invention in the application of various garments, furnishings, and felts.

Example 1: Monochrome garment made from the spun yarn of the present invention:

The staple fibers are made in a standard fiber extruder comprising a mixture of 90% olefins and 10% of the dyeable concentrate (masterbatch) of the present invention. The fiber is 1.5 denier and cut to a length of 1.5".

The fiber is converted into a 30/2 cc yarn using a conventional ring-type worsted system. Technical experts can also use the jet system, free end system, ring worsted or roving system to make 500 pounds of dyeable yarn.

The 30/2 yarn was knitted on a 18th Jersey Cut knitting machine. A 500 lb. knit fabric made of 6.5 ounces per square yard.

The knitted rolls were dyed in a standard nylon dyeing machine. A 1% low energy dispersible blue dye was applied at 200 °F following a standard nylon dyeing procedure. The dyed rolls were removed, unwound, and dried and finished in a standard oven on a standard rack. The oven temperature is set no more than 280 °F, below the melting point of the olefin. Monochrome dyed into a knit fabric, rolled into many standard rolls.

Example 2: Monochrome garment made from the continuous filament yarn of the present invention:

Continuous filament yarns were produced in a standard fiber extruder comprising a mixture of 90% olefins and 10% of the dyeable additives of the present invention. The yarn consists of 50 denier long fibers and is made into 100/50/1 continuous filament yarn.

100/50/1 continuous filament yarn, knitted on a 18th Jersey Cut knitting machine. Made into a 500-pound knit roll weighing 6.0 ounces per yard.

The knitted rolls were dyed in a standard nylon dyeing machine. A moderately dispersible blue dye is applied at 200 °F following a standard nylon dyeing procedure. The dyed rolls were removed, unwound, and dried and finished in a standard oven on a standard rack. The oven temperature is set no more than 280 °F, below the melting point of the olefin. Monochrome dyed into a knit fabric, rolled into many standard rolls.

Example 3: Continuous long fiber BCF dyeable olefin felt yarn:

Continuous filament yarns are produced using standard BCF blanket yarn extruders, including 90% A mixture of an olefin and 10% of the dyeable additive of the present invention. This yarn consisted of 75 long fibers of 20 denier per long fiber, producing 1500/75/1 continuous filament yarn.

This yarn was tufted on a 1/8th uniform loop pile tufting machine. The blankets were dyed in a continuous dyeing range using a standard nylon dyeing system. The blankets are dried, lined and rolled and ready for shipment to the customer.

Another procedure is to heat and shape the ends of the yarn to produce 1500/75/2. This yarn is tightly tufted on a 1/8 cut pile to produce an undyed felt. The blankets are dyed, lining, rolled, and ready for delivery in a continuous dyeing range using nylon dyeing.

Example 4: Three-tone continuous long fiber BCF olefin felt yarn:

Continuous filament yarns are made on a standard trichromatic olefin BCF felt yarn extruder. One-third of the olefin yarn comprises 85% olefin and 15% of the dyeable concentrate of the invention, one third of the yarn comprises 90% olefin and 10% of the dyeable additive of the invention, and another third A yarn consists of long fibers of black pigment. The finished yarn consists of 90 long fibers of 20 denier per long fiber, and 1800/90/1 continuous long fiber yarn. 30 long fibers are deeply dyed, 30 long fibers are lightly dyed, and another 30 long fibers do not receive any dye. The cross-sectional shape of each long fiber is a trilobal shape.

The continuous long fiber BCF yarn was tufted on a 1/8th uniform loop pile tufting machine. The blankets were dyed in a continuous dyeing range using a standard nylon dyeing system. A mixture of red and blue dyes was used to produce a brown color. The pigmented portion does not receive any dye, retains black, the portion containing 15% of the additive is dyed dark brown, and the remaining 10% of the additive is dyed light brown. The result is a three-tone carpet, black, dark brown and light brown. The carpet is dried, lined and rolled and ready for shipment to customers. This is for illustrative purposes only. Technical experts can vary the amount of additives and pigments to produce a wide range of desired and pleasing results.

Example 5: Printing and dyeing olefin fabric:

Screen printing: A knitted fabric comprising 150/1 denier dyeable olefins was prepared in accordance with the present invention and fed into a 6-color aqueous continuous screen printing machine. For each screen, the dye and thickener are formulated into standard pastes. The screen can be made into a 6-color pleasing pattern. The paste is passed through the net on the fabric one color at a time. The fabric is fed to a steam box to shape the dye. Each time the dyeing is set, it takes 2 to 4 minutes of steam at 212 °F. The fabric is passed through a continuous system, and the excess dye is washed away, taking care not to exceed 295 °F when dry. The result is a pleasing 6-color printed knit olefin fabric. In another embodiment, a similar printing system is used on a blanket printing machine, using a dye available in a printed blanket mall, printed on a tufted felt.

Achieve new pattern effects without bleed or excessive pressure. The drying time was greatly reduced and the oven was set to contact the fabric at 295 °F. It should be noted that tufting and woven fabrics can also be treated using atmospheric pressure nylon printing techniques.

Example 6: Interlaced dyeing of olefin yarns using a knitted unknitted fabricating process:

(a) Olefin particles having a melt flow index of 18 to 35, which are extruded and intimately mixed using the above dyeable concentrate of the present invention. A mixture of 90% olefin and 10% masterbatch dyeable concentrate is extruded into a staple fiber material using conventional staple fiber extrusion equipment. The fiber dpf was 1.5 and cut to 1.5 吋. Made of about 1000 pounds of staple fiber, packed. The Dani number per long fiber is close to cotton and is also the length of staple fiber.

(b) The olefin staple fibers are packaged and mixed together during the carding process to form rovings. The rovings made using conventional cotton equipment were spun into 10/1 cotton counts and wound onto a 3 lb. bobbin. Made of about 1000 pounds of yarn. The 10/1 yarn was plied to make a 10/2 dyeable yarn.

(c) Knit sleeves: Knitting 10/2 olefin yarn into a single endless sleeve.

(d) Interval dyeing: Three colors are printed on the sleeves as part of the known technique for knitting and knitting. This is a continuous process whereby the undyed sleeve is applied to the first hue by means of a paddle roller immersed in the dye bath. The sleeve continues to the second pattern roller, the second hue is printed, and then continues to the third roller to add a third hue of the pattern. The basic hue is usually light, the second hue is moderate, and the third hue is deep. The colored knit sleeves are steamed for at least 2 minutes, preferably 4 minutes. This allows the dye to be shaped to the acceptable depth of the hue. Knitted sleeves have a natural background in monochrome, with dark brown and charcoal. The sleeves are then washed and dried in a continuous range. The dryer was set to a low temperature of 250 °F to evaporate the water. The dry sleeves are collected in a container and transported to the gauze chamber.

(e) The resulting sleeve is unknitted and wound on a bobbin using a crimping operation known to the skilled artisan. The yarn is pleasing to the eye, with dark brown deep charcoal spots and rolled onto a conical tube.

(f) 10/2 olefin spacer dyed yarn, knitted on a 10 slit knitting machine. The result was a pleasing three-color spacer dyed fabric. Interwoven olefin dyed fabrics, unexpectedly without the pattern usually associated with skein or sweater yarn dyeing. The fabric is washed in a spray or dyeing machine with hot water to increase fluffiness and purify the color. This also ensures that the sweater that is actually finished is not shrunk by the end user. The fabric was dried in a 200 °F cold oven. Although it is not necessary to wash the fabric, it is worth the extra step to prevent the fabric from shrinking.

(g) Tailoring the gap-dyed sweater fabric, which is unexpectedly novel. If olefin is used, the weight of the fabric is 30% lighter than the cotton sweater of the same specification. Although this embodiment uses 10/2 yarn, it is necessary to know this. The invention of dyeable olefins of any size is practically suitable for use in knit release knit winding systems. This system is especially useful for spacing dyed blanket yarns. A number of pleasing color effects can be achieved and should not be limited to the described embodiments. The amount of spacer dyed blanket yarn is very large. Technical experts should be able to find pleasing results regardless of the worsted or continuous filament yarn.

Other methods of spacing dyed or dyed yarns are available. The technologist will adjust the various machines to the top of the list. Two other common methods for spacer dyeing are warp printing and bobbin dip dyeing.

It is to be understood that the invention has been described herein for the purpose of illustrating the basic principles of the invention. Therefore, the full scope of the invention should be determined by reference to the appended claims.

Claims (13)

A dyeing process suitable for olefin fibers, olefin yarns, olefin fabrics and olefin films, including: olefins, with 10% to 50% amorphous nylon, 8% to 12% olefins modified with maleic anhydride, And a masterbatch composed of 80% to 40% nylon of one of nylon 6 or nylon 6,6 or both, mixed, wherein the masterbatch accounts for 2% to 10% of the mixture, and the olefin accounts for the mixture 98% to 90%, and using a nylon dyeing system, at atmospheric pressure, will mix olefin dyes. The method of claim 1, wherein the olefin is a polypropylene having a melt flow index of from 8 to 35. The method of claim 1, wherein the master batch component is extruded to form a masterbatch pellet. The method of claim 1, wherein the masterbatch component is incorporated into the extruder together with the olefin and extruded into a mixed material. The method of claim 4, wherein the mixed material is extruded into a granular form. The method of claim 4, wherein the mixed material is extruded through a nozzle to form a fiber or a film. The method of claim 1, wherein: ‧ an olefin modified with maleic anhydride, including polypropylene or low density polyethylene. For example, in the method of claim 1, wherein the nylon 6 plus nylon 6, 6 together does not exceed 80% in the mixture. The method of claim 1, wherein the olefin is a polypropylene. An olefin fiber dyed by the method of claim 1 of the patent application. An olefin yarn dyed by the method of claim 1 of the patent application. An olefin fabric dyed by the method of claim 1 of the patent application. An olefin film which is dyed by the method of claim 1 of the patent application.