Invention content
In order to solve the above problem of the prior art, the present invention provides a kind of reinforcement of dipping rubber gloves tiger's jaw,
All kinds of rubber gloves that this method can be applied to produce completion carry out reprocessing processing, and the first web part of rubber gloves is made to plant
Reinforced rubber sheet, and the glue-line of reinforced rubber sheet and rubber gloves is made closely to consolidate, enhance the wear-resisting durability of gloves.
In order to achieve the above object, the main technical schemes that the present invention uses are as follows:
A kind of reinforcement of dipping rubber gloves tiger's jaw, which is characterized in that including:
Prepare tiger's jaw reinforcement rubber cement:It is ointment shape rubber cement by latex, water and ball milling material mixed preparing;
Rubber gloves pre-processes:The rubber gloves is sleeved on fingerprint, which makes to separate between index finger and thumb, tiger
Mouth position forms nearly 180 ° of angles;
Plant reinforced rubber sheet:The unguinosus tiger's jaw reinforcement rubber cement is coated onto with sheet at the tiger's jaw;
Bake vulcanization:Rubber gloves to having planted reinforced rubber sheet heats, make under heat effect inside the reinforced rubber sheet,
And vulcanization crosslinking between the reinforced rubber sheet and the glue-line of rubber glove surface, so that the reinforced rubber sheet is implanted in securely described
The tiger's jaw position of rubber gloves.
In a specific embodiment of the invention, the glue-line of the rubber glove surface is the natural rubber of incomplete vulcanization
Glue, nitrile rubber, butadiene-styrene rubber, neoprene, butyl rubber or PU glue.
Incomplete vulcanization rubber refers to the rubber gloves in production, (opposite by the adding proportion for controlling vulcanizing agent
The ratio of latex), control curing temperature and vulcanization time make the glue-line of the rubber glove surface there is also do not carry out network company
The sulfurate activity group connect.The rubber of incomplete vulcanization can again occur under high temperature environment with the tiger's jaw reinforcement rubber cement of planting
Vulcanization crosslinking acts on, and glove surface glue-line is made to be bonded as one securely with tiger's jaw reinforced rubber sheet.
In a specific embodiment of the invention, the rubber gloves pretreatment further includes with water by the rubber gloves
Tiger's jaw position carries out wet operation.Can be that the rubber gloves is immersed in the water wetting or is rinsed with water the tiger of the rubber gloves
Mouth position.
In a specific embodiment of the invention, the unguinosus tiger's jaw reinforcement rubber cement be by with the rubber gloves
Tiger's jaw position cooperation a plate face be coated onto on the rubber gloves, the plate face include an ellipse, oblong or shield
The leak adhesive hole of board shape.
In a specific embodiment of the invention, the plate face includes glue filling trough, the unguinosus tiger's jaw reinforcement rubber cement
It is contained in the glue filling trough, the bottom plate of the glue filling trough is equipped with the leak adhesive hole.
In a specific embodiment of the invention, which includes stent and thumb mould, which supplies the rubber
Remaining four fingerstall in addition to thumb of gloves close or only for index finger fittings, which is connect with the thumb mould and the thumb mould energy
The opposite stent rotation angle;When the rubber gloves set is to the fingerprint, first rubber gloves is sleeved on outside the stent
And the thumb mould is fitted into the thumb of the rubber gloves, then stirring the thumb mould makes it form 160~180 ° with the stent
Angle.
In a specific embodiment of the invention, the heating temperature for baking vulcanization is 70-110 DEG C, time 30-50 point
Clock.Under this condition, the reinforced rubber sheet at tiger's jaw is securely glued with the rubber glove surface glue-line by further full cure
It is connected into one.
In a specific embodiment of the invention, the tiger's jaw reinforcement rubber cement is made by the following method:It will by mass parts
800-1200 parts of latex, 5~10 parts of aqueous color pastes, 20~50 parts of ball milling material mixing, viscosity 15000- is deployed into thickener
The ointment shape rubber cement of 30000mpa.s;The latex be NBR latex or Heveatex, the aqueous color paste water content 60~
80%.Wherein NBR latex or Heveatex oil resistivity acid-alkali-resistant degree, anti-puncture and tear resistance is preferable, therefore preferential use
NBR latex or Heveatex are deployed into tiger's jaw reinforcement rubber cement.If you do not need to increase color, washing mill base can water consumption substitution, only
It is used in amounts adjustment.
In a specific embodiment of the invention, the thickener is sodium carboxymethylcellulose CMC, Sodium Polyacrylate, does
One kind in casein, PVAC polyvinylalcohol, hydroxymethyl ethylcellulose, hydroxyethylpropyl cellulose is every arbitrary group aforementioned
It closes.By thickener by tiger's jaw reinforcement rubber cement formulated viscosity to 15000-30000mpa.s in ointment shape rubber cement.
The selection of the viscosity and plate face of tiger's jaw reinforcement rubber cement, two conditions have codetermined plant and have arrived rubber gloves first web part
Reinforced rubber sheet shape, size, overlay area and thickness.The shape in the wherein leak adhesive hole of plate face determines the shape of reinforced rubber sheet
The hole depth of shape, leak adhesive hole determines the leak adhesive amount of tiger's jaw reinforcement rubber cement, therefore can influence the thickness of tiger's jaw reinforced rubber sheet.As for covering
The aligned position of fingerprint and plate face is harmonized before planting tiger's jaw reinforced rubber sheet in lid position.
And the viscosity of tiger's jaw reinforcement rubber cement determines whether the reinforced rubber sheet of each gloves can keep form uniform, and it is accurate
The reinforced rubber sheet for being shaped as preset shape really is controlled, avoids the trickling of reinforcement rubber cement, drop from splashing, leads to difference between each single product
Property is excessive.If tiger's jaw reinforcement cement viscosity is too small, it is easy to cause when planting to the rubber gloves, tiger's jaw reinforcement rubber cement is to one
Side slides flowing, offset tiger's jaw or the excessively weak and limp situations such as flat, it is difficult to play preferably enhancing reinforcing effect.Tiger's jaw reinforcement rubber cement
When viscosity is excessive, then the dispersed homogeneous degree of each component in tiger's jaw reinforcement rubber cement can be caused too low, and can also increased to production operation
It is difficult.
In a specific embodiment of the invention, the ball milling material is made by the following method:The ball milling material by with
Lower section method is made:7~14 parts of vulcanizing agents, 15~30 portions of activating agents, 9~16 parts of dispersants, 5~10 parts are thickened by mass parts
Agent, 80~120 parts of water mixing are simultaneously made with ball mill grinding.
Wherein, the thickener is sodium carboxymethylcellulose CMC, Sodium Polyacrylate, casein, PVAC polyvinylalcohol, hydroxyl first
The arbitrary combination of one kind or aforementioned items in base ethyl cellulose, hydroxyethylpropyl cellulose.
Wherein, the vulcanizing agent refers to the object that all can make linear rubber molecule be cross-linked to form dimensional network structure
Under matter, including sulphur, heating temperature the compound of releasable sulfur-containing radicals and other rubber molecule can be made to be cross-linked to form net
The not sulfur-containing compound (including resin curing agent) of network structure.Preferably, the vulcanizing agent is one kind of sulphur, thiurams
Or several combinations, the thiurams are thiuram-disulfide or thiurampolysulfides.Both thiurams are because in standard sulphur
Active sulfur or sulfur-containing radicals can be released at a temperature of change, therefore can be used as vulcanizing agent use.Therefore, sulphur can be used in the present invention
Sulphur, thiuram-disulfide, thiurampolysulfides, sulphur+thiuram-disulfide, sulphur+thiurampolysulfides or curing autumn are blue
The combination of nurse and thiurampolysulfides.
Effect of the activating agent in tiger's jaw reinforcement rubber cement includes mainly (1) cure activation system;(2) crosslinking of vulcanization is improved
Density;(3) ageing-resistant performance of vulcanizate is improved.In addition, activator can also give full play to organic accelerator effect, reduces and use
Amount/shortening vulcanization time.Wherein activator ZnO2 is acted on other than with sulfurate activity effect, and also vulcanization/reinforcement/increase-volume is made
With.
In the present invention, the activating agent is one kind in zinc oxide, zinc carbonate and zinc stearate or aforementioned every times
Meaning combination.Wherein, the activating agent can be used alone, and can also be used in mixed way, and zinc oxide accounts for 80% or so when mixing, zinc stearate
20% or so or zinc carbonate 80% or so and zinc stearate 20% or so.Zinc oxide, zinc stearate, zinc carbonate isoreactivity agent
Formation for promoting polymer molecular chain covalent bond or ionic bond, to help to play bridging action line style is intermolecular, from
And so that multiple linear molecules is mutually bonded and be cross-linked into network structure.Therefore, by the promoter effect of activating agent, gloves tiger's jaw can be made
Reinforced rubber sheet there are the preferably performances such as wear-resistant and chemicals-resistant, extend tiger's jaw reinforced rubber sheet depositing in rubber glove surface
The continuous time.
In a specific embodiment of the invention, the dispersant is sodium metnylene bis-naphthalene sulfonate (dispersing agent NNO) or two
The combination of one or more of sodium butylnaphthalenesulfonate.Dispersant be conducive to improve zinc oxide, vulcanizing agent dispersibility, improve with
The mixing velocity of latex, the adherence for improving tiger's jaw reinforcement rubber cement, raising reinforced rubber sheet consolidate secured in rubber glove surface
Degree, hardness and wear-resisting property.Dispersant is that a kind of in the molecule while having the boundaries of two kinds of opposite natures of lipophile and hydrophily
Face activating agent.It uniform can disperse those and be poorly soluble solid and liquid particles in liquid, while can also prevent the sedimentation of particle
And cohesion, form the amphipathic reagent stabilized needed for suspension/dispersion.Sodium metnylene bis-naphthalene sulfonate and nekal
Substantially anion surfactant has good extension, and foamability is low, can be with other anionics, nonionic table
Face activating agent is mixed.Nekal also acts as bleeding agent, emulsifier etc. in addition to as dispersant.Anionic surface
Activating agent can make the tiger's jaw reinforcement rubber cement of preparation more stable compared to cationic surfactant.
Preferably, the rubber types of the rubber types and reinforced rubber sheet that make rubber gloves are of the same race, conducive to being better achieved
Bonding and fusion.
Illustrated according to above scheme, advantageous effects of the invention include:
(1) tiger's jaw reinforcement rubber cement is configured to ointment shape rubber cement by the present invention, coordinates the plate face with leak adhesive hole, by ointment shape
The mode that rubber cement is squeezed out from leak adhesive hole plants the first web part to rubber gloves.Plate face is equipped with round, ellipse, oblong or shield
The leak adhesive hole of shape, determines the shape of reinforced rubber sheet, and the hole depth (being usually the thickness of plate face bottom plate) in leak adhesive hole and leak adhesive amount
It is directly related, determine the thickness of reinforced rubber sheet.The present invention coordinates the brush coating arm in plate face, i.e., only by plate face simple in structure
The reinforcement that rubber gloves tiger's jaw can be achieved, relative to the mode that traditional " dipping " is overturn afterwards, method of the invention has tiger's jaw
Reinforced rubber sheet shape, thickness and the controllable feature of covering surface, while decreasing the difficulty of the mechanical equipments such as fingerprint braking and control
Degree.
(2) the ointment shape cement viscosity contained in plate face is up to 15000mpa.s~30000mpa.s, and mobility is poor,
Close to toothpaste-like, it is not easy to be splashed in rubber glove surface trickling, drop, make reinforced rubber sheet that can be planted to exact position, have and preset
Form, without overturning the operation of fingerprint " drop glue spin coating ".Keep production craft step simply controllable.
(3) fingerprint of the invention is divided into two parts, i.e. stent and the thumb mould for capableing of rotation angle;In the rubber
When gloves set to the fingerprint, the thumb mould and stent do not open and (for half-open shape or moving type, are similar to a conjunction completely
Page).At this point, the opening degree very little due to thumb mould relative to stent, rubber gloves can be easily sleeved on outside the fingerprint
It portion and allows the thumbstall of gloves outside thumb mould, then stirs thumb mould again, it is made to be flared to form 160 completely with stent
~180 ° of angle is prepared for the coating of tiger's jaw reinforcement rubber cement.The present invention is dexterously solved by the thumb mould of angle rotatable
The excessive glove form of tiger's jaw angle of having determined is difficult to the technical barrier of quick " cover die ".
(4) method of the invention further includes the pretreatment of rubber gloves before planting reinforced rubber sheet, and pretreatment includes to tiger
Oral area position is soaked.By wet operation, so that the rubber gloves of some fine corrugations originally is become smooth, avoid
Trapped air in fine corrugations;On the other hand, by wet operation, surface moisture can reduce rubber glove surface tension, make soft
Pasta reinforcement rubber cement can be attracted to tiger's jaw position easily, to carry out subsequent high temperature vulcanizable cures processing, to make tiger
It is consolidated securely to gloves while mouth reinforcement rubber cement coagulation forming.There are a small amount of air for dry rubber glove surface, empty
The presence of gas can cause glove surface tension larger, interfere the quick adsorption of ointment shape tiger's jaw reinforcement rubber cement;Air is at high temperature
It can expand, gas expansion influences vulcanization crosslinking reaction.Therefore, air can be driven away by wetting action, is conducive to reinforced rubber sheet and hand
Cover virgin rubber layer concrete mutually.
(5) in the method for the present invention, the dispensing of tiger's jaw reinforcement rubber cement is environmentally protective, without the PVC material that can not be degraded, reinforcement
It is easy to operate, it can realize the industrialized production of high efficiency, low cost.Reinforced rubber sheet and the high (pole of rubber glove surface cementability intensity
Property absorption and the effect of two kinds of vulcanization crosslinking).The gloves produced by the method for the invention can increase the tear-resistant wear-resisting of first web part
Performance extends gloves service life.
Embodiment 1
Step S1, butyronitrile tiger's jaw reinforcement rubber cement is prepared:By weight, by 1000 parts of NBR latexes, 40 parts of ball milling material, 9 parts
Mill base (moisture content 70%) is mixed evenly, and 300 parts of casein are added, are prepared into the unguinosus tiger's jaws of viscosity 18000mpa.s
Reinforcement rubber cement.
Wherein ball milling material according to mass ratio by 5 parts of sulphur, 30 parts of zinc oxide, 11 parts of dispersant NNO, 10 parts of titanium dioxide, dry
100 parts of 5 parts of casein and water are sufficiently mixed, and are made after grinding in the ball mill.
Step S2, a kind of acrylonitrile butadiene glove is sleeved on fingerprint 20, is made between the thumb of acrylonitrile butadiene glove and index finger
Tiger's jaw be softened, in close to 180 ° of angle.
As shown in Fig. 2, fingerprint 20 includes the thumb mould 22 of stent 21 and angle rotatable, stent 21 is for rubber gloves
Remaining four fingerstall in addition to thumb close or only for index finger fitting (in figure stent 21 be only for the index finger fitting of rubber gloves).
When carrying out S2 operations, glove form 20 is half-open conjunction state, which is set to this again between being 20~80 ° and consolidated by angle theta
Outside cover half 21, i.e., outside the index finger cover of rubber gloves to stent 21, at the same time thumb mould 22 is tucked into rubber gloves
In thumb, afterwards turning over thumb mould 22 makes the angle theta between thumb mould 22 and the stent 21 at 160~180 °, is preferably close to
180 ° or it is equal to 180 °, the first web part for being sleeved on the external acrylonitrile butadiene glove at this time is softened and flattens, for step S3
Plant tiger's jaw reinforced rubber sheet operation.The movable fingerprint being made up of the thumb mould 22 of stent 21 and angle rotatable
20, it can dexterously solve the technical barrier that gloves are difficult to the fingerprint covered to " thumb mould and index finger intermode angle are excessive ".
Step S3, the plate face 11 of suitable dimension, the butyronitrile tiger's jaw reinforcement rubber cement that step S1 is prepared is selected to penetrate plate face 11
Leak adhesive hole 12 squeeze out, the first web part for being coated onto acrylonitrile butadiene glove forms an oval reinforced rubber sheet.
It includes plate face 11, brush coating arm, conveyer belt, fingerprint 20 (such as Fig. 2) to plant point device.It is shown in Figure 1, it is plate face 11
Structural schematic diagram.The plate face 11 is mounted on the top of fingerprint 20, and fingerprint 20 is under conveyer belt effect successively successively below plate face 11
By containing the prepared butyronitrile tiger's jaw reinforcement rubber cements of step S1, the brush coating of cooperative mechanical control in the glue filling trough 13 of plate face 11
Arm moves back and forth in glue filling trough 13, butyronitrile tiger's jaw reinforcement rubber cement is swiped back and forth and saturating from the leak adhesive hole 12 in plate face 11
It crosses, is leaked out from leak adhesive hole 12, and print to the first web part for being sleeved on rubber gloves on fingerprint 20.Wherein leak adhesive hole 12 is ellipse
It is advisable.
Step S4, the gloves that reinforced rubber sheet has been planted to step S3 heat vulcanization:It is put into vulcanization drying in baking oven.Oven temperature
70 DEG C are set as, baking time 25 minutes;Then adjust 100 DEG C of oven temperature, baking time 20 minutes, make butyronitrile reinforcement rubber cement with
Tiger's jaw virgin rubber layer is fully bonded, and is vulcanized in place.The acrylonitrile butadiene glove of tiger's jaw reinforcement is made after demoulding.
Embodiment 3
Step S1, butyronitrile tiger's jaw reinforcement rubber cement is prepared:By weight, by 900 parts of NBR latexes, 35 parts of ball milling material, 10 parts
Mill base (moisture content 70%) is mixed evenly, and 400 parts of casein are added, are prepared into the unguinosus tiger's jaws of viscosity 21000mpa.s
Reinforcement rubber cement.
Wherein ball milling material according to mass ratio by 12 parts of thiurampolysulfides, 20 parts of zinc oxide, 10 parts of dispersant NNO, titanium white
120 parts of 15 parts of powder, 8 parts of casein and water are sufficiently mixed, and are made after grinding in the ball mill.
Step S2, a kind of acrylonitrile butadiene glove is sleeved on fingerprint 20, is made between the thumb of acrylonitrile butadiene glove and index finger
Tiger's jaw be softened, in close to 180 ° of angle;The first web part of gloves, equating first web part are soaked with clear water again.
The shape of fingerprint 20 is referring to embodiment 1, and the step of covering fingerprint 20 is referring to embodiment 1.
Step S3, the plate face 11 of suitable dimension, the butyronitrile tiger's jaw reinforcement rubber cement that step S1 is prepared is selected to penetrate plate face 11
Leak adhesive hole 12 squeeze out, the first web part for being coated onto acrylonitrile butadiene glove forms an oval reinforced rubber sheet.
It includes plate face 11, brush coating arm, conveyer belt, fingerprint 20 etc. to plant point device, and referring to embodiment 1, wherein leak adhesive hole 12 is
Ellipse.
Step S4, the gloves that reinforced rubber sheet has been planted to step S3 heat vulcanization:It is put into vulcanization drying in baking oven.Oven temperature
80 DEG C are set as, baking time 20 minutes;Then adjust 100 DEG C of oven temperature, baking time 30 minutes, make butyronitrile reinforcement rubber cement with
Tiger's jaw virgin rubber layer is fully bonded, and is vulcanized in place.The acrylonitrile butadiene glove of tiger's jaw reinforcement is made after demoulding.
The present invention prepares the rubber gloves of tiger's jaw reinforcement, and through room machine, maintenance mans use in routine work, finds hand
The wear-resisting and tearing-resistant performance of set first web part significantly improves, it is not easy to which broken glue, service life is more than 5 days.